From 0ce42f4b3a3291bdc72348051447455637344318 Mon Sep 17 00:00:00 2001 From: Mikael Siidorow Date: Sun, 16 Apr 2023 23:30:09 +0300 Subject: [PATCH 1/8] refactor!: switch to Poetry, Ruff, upgrade to 3.10 --- .dockerignore | 4 +- .env.example | 2 - .github/workflows/lint.yaml | 31 +- .github/workflows/main.yaml | 2 +- .gitignore | 4 +- .pylintrc | 633 --------- Dockerfile | 16 +- Pipfile | 32 - Pipfile.lock | 1004 -------------- README.md | 15 +- dev.Dockerfile | 17 +- kipubot/__init__.py | 31 +- kipubot/bot.py | 25 +- kipubot/constants.py | 102 +- kipubot/db.py | 170 ++- kipubot/handlers/__init__.py | 2 +- kipubot/handlers/_bot_added_handler.py | 16 +- kipubot/handlers/_error_handler.py | 23 +- kipubot/handlers/_excel_file_handler.py | 35 +- kipubot/handlers/_graph_handlers.py | 40 +- kipubot/handlers/_moro_handler.py | 14 +- kipubot/handlers/_no_dm_handler.py | 9 +- kipubot/handlers/_raffle_setup_handler.py | 421 +++--- kipubot/handlers/_start_handler.py | 8 +- kipubot/handlers/_winner_handler.py | 40 +- kipubot/utils.py | 204 +-- poetry.lock | 1466 +++++++++++++++++++++ pyproject.toml | 43 + test.Dockerfile | 17 +- tests/test_utils.py | 99 +- 30 files changed, 2275 insertions(+), 2250 deletions(-) delete mode 100644 .pylintrc delete mode 100644 Pipfile delete mode 100644 Pipfile.lock create mode 100644 poetry.lock create mode 100644 pyproject.toml diff --git a/.dockerignore b/.dockerignore index 7540d98..ee1d473 100644 --- a/.dockerignore +++ b/.dockerignore @@ -2,6 +2,6 @@ ** # Except for dependencies and source code -!Pipfile -!Pipfile.lock +!pyproject.toml +!poetry.lock !kipubot \ No newline at end of file diff --git a/.env.example b/.env.example index 1987d62..42abd03 100644 --- a/.env.example +++ b/.env.example @@ -1,4 +1,2 @@ -PYTHONPATH=${PYTHONPATH}:kipubot - BOT_TOKEN= DATABASE_URL= diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml index c37fe00..f266411 100644 --- a/.github/workflows/lint.yaml +++ b/.github/workflows/lint.yaml @@ -23,29 +23,28 @@ jobs: steps: - name: Checkout repository - uses: actions/checkout@v2 + uses: actions/checkout@v3 - - name: Set up Python 3.8 - uses: actions/setup-python@v2 - with: - python-version: 3.8 - - - name: Install pipenv + - name: Install poetry run: | python3 -m pip install --upgrade pip - pip install pipenv + python3 -m pip install --user pipx + python3 -m pipx ensurepath + pipx install poetry - - name: Install dependencies - run: | - pipenv install --dev + - name: Set up Python 3.10 + uses: actions/setup-python@v4 + with: + python-version: "3.10" + cache: "poetry" - - name: Set PYTHONPATH + - name: Install dependencies run: | - echo "PYTHONPATH=${PYTHONPATH}:kipubot" >> $GITHUB_ENV + poetry install - name: Lint with pylint run: | - pipenv run lint + poetry run poe lint - name: Set testing BOT_TOKEN run: | @@ -53,12 +52,12 @@ jobs: - name: Type-check with pytype run: | - pipenv run pytype + poetry run poe type env: DATABASE_URL: "postgres://postgres:postgres@localhost:5432/postgres" - name: Run unit tests run: | - pipenv run pytest + poetry run poe test env: DATABASE_URL: "postgres://postgres:postgres@localhost:5432/postgres" diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml index 60e6c82..a086487 100644 --- a/.github/workflows/main.yaml +++ b/.github/workflows/main.yaml @@ -12,7 +12,7 @@ jobs: runs-on: ubuntu-latest needs: [lint] steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v3 - uses: akhileshns/heroku-deploy@v3.12.12 with: heroku_api_key: ${{secrets.HEROKU_API_KEY}} diff --git a/.gitignore b/.gitignore index 455844f..e0a7860 100644 --- a/.gitignore +++ b/.gitignore @@ -2,4 +2,6 @@ env/ .env data/ .pytype/ -.pytest_cache/ \ No newline at end of file +.pytest_cache/ +__pycache__/ +.vscode \ No newline at end of file diff --git a/.pylintrc b/.pylintrc deleted file mode 100644 index 107c6ea..0000000 --- a/.pylintrc +++ /dev/null @@ -1,633 +0,0 @@ -[MAIN] -disable=missing-module-docstring, - missing-class-docstring, - missing-function-docstring - -# Analyse import fallback blocks. This can be used to support both Python 2 and -# 3 compatible code, which means that the block might have code that exists -# only in one or another interpreter, leading to false positives when analysed. -analyse-fallback-blocks=no - -# Load and enable all available extensions. Use --list-extensions to see a list -# all available extensions. -#enable-all-extensions= - -# In error mode, messages with a category besides ERROR or FATAL are -# suppressed, and no reports are done by default. Error mode is compatible with -# disabling specific errors. -#errors-only= - -# Always return a 0 (non-error) status code, even if lint errors are found. -# This is primarily useful in continuous integration scripts. -#exit-zero= - -# A comma-separated list of package or module names from where C extensions may -# be loaded. Extensions are loading into the active Python interpreter and may -# run arbitrary code. -extension-pkg-allow-list= - -# A comma-separated list of package or module names from where C extensions may -# be loaded. Extensions are loading into the active Python interpreter and may -# run arbitrary code. (This is an alternative name to extension-pkg-allow-list -# for backward compatibility.) -extension-pkg-whitelist= - -# Return non-zero exit code if any of these messages/categories are detected, -# even if score is above --fail-under value. Syntax same as enable. Messages -# specified are enabled, while categories only check already-enabled messages. -fail-on= - -# Specify a score threshold to be exceeded before program exits with error. -fail-under=10 - -# Interpret the stdin as a python script, whose filename needs to be passed as -# the module_or_package argument. -#from-stdin= - -# Files or directories to be skipped. They should be base names, not paths. -ignore=CVS - -# Add files or directories matching the regex patterns to the ignore-list. The -# regex matches against paths and can be in Posix or Windows format. -ignore-paths= - -# Files or directories matching the regex patterns are skipped. The regex -# matches against base names, not paths. The default value ignores Emacs file -# locks -ignore-patterns=^\.# - -# List of module names for which member attributes should not be checked -# (useful for modules/projects where namespaces are manipulated during runtime -# and thus existing member attributes cannot be deduced by static analysis). It -# supports qualified module names, as well as Unix pattern matching. -ignored-modules= - -# Python code to execute, usually for sys.path manipulation such as -# pygtk.require(). -#init-hook= - -# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the -# number of processors available to use, and will cap the count on Windows to -# avoid hangs. -jobs=1 - -# Control the amount of potential inferred values when inferring a single -# object. This can help the performance when dealing with large functions or -# complex, nested conditions. -limit-inference-results=100 - -# List of plugins (as comma separated values of python module names) to load, -# usually to register additional checkers. -load-plugins= - -# Pickle collected data for later comparisons. -persistent=yes - -# Minimum Python version to use for version dependent checks. Will default to -# the version used to run pylint. -py-version=3.8 - -# Discover python modules and packages in the file system subtree. -recursive=no - -# When enabled, pylint would attempt to guess common misconfiguration and emit -# user-friendly hints instead of false-positive error messages. -suggestion-mode=yes - -# Allow loading of arbitrary C extensions. Extensions are imported into the -# active Python interpreter and may run arbitrary code. -unsafe-load-any-extension=no - -# In verbose mode, extra non-checker-related info will be displayed. -#verbose= - - -[REPORTS] - -# Python expression which should return a score less than or equal to 10. You -# have access to the variables 'fatal', 'error', 'warning', 'refactor', -# 'convention', and 'info' which contain the number of messages in each -# category, as well as 'statement' which is the total number of statements -# analyzed. This score is used by the global evaluation report (RP0004). -evaluation=max(0, 0 if fatal else 10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)) - -# Template used to display messages. This is a python new-style format string -# used to format the message information. See doc for all details. -msg-template= - -# Set the output format. Available formats are text, parseable, colorized, json -# and msvs (visual studio). You can also give a reporter class, e.g. -# mypackage.mymodule.MyReporterClass. -#output-format= - -# Tells whether to display a full report or only the messages. -reports=no - -# Activate the evaluation score. -score=yes - - -[MESSAGES CONTROL] - -# Only show warnings with the listed confidence levels. Leave empty to show -# all. Valid levels: HIGH, CONTROL_FLOW, INFERENCE, INFERENCE_FAILURE, -# UNDEFINED. -confidence=HIGH, - CONTROL_FLOW, - INFERENCE, - INFERENCE_FAILURE, - UNDEFINED - -# Disable the message, report, category or checker with the given id(s). You -# can either give multiple identifiers separated by comma (,) or put this -# option multiple times (only on the command line, not in the configuration -# file where it should appear only once). You can also use "--disable=all" to -# disable everything first and then re-enable specific checks. For example, if -# you want to run only the similarities checker, you can use "--disable=all -# --enable=similarities". If you want to run only the classes checker, but have -# no Warning level messages displayed, use "--disable=all --enable=classes -# --disable=W". -disable=raw-checker-failed, - bad-inline-option, - locally-disabled, - file-ignored, - suppressed-message, - useless-suppression, - deprecated-pragma, - use-symbolic-message-instead - -# Enable the message, report, category or checker with the given id(s). You can -# either give multiple identifier separated by comma (,) or put this option -# multiple time (only on the command line, not in the configuration file where -# it should appear only once). See also the "--disable" option for examples. -enable=c-extension-no-member - - -[TYPECHECK] - -# List of decorators that produce context managers, such as -# contextlib.contextmanager. Add to this list to register other decorators that -# produce valid context managers. -contextmanager-decorators=contextlib.contextmanager - -# List of members which are set dynamically and missed by pylint inference -# system, and so shouldn't trigger E1101 when accessed. Python regular -# expressions are accepted. -generated-members= - -# Tells whether to warn about missing members when the owner of the attribute -# is inferred to be None. -ignore-none=yes - -# This flag controls whether pylint should warn about no-member and similar -# checks whenever an opaque object is returned when inferring. The inference -# can return multiple potential results while evaluating a Python object, but -# some branches might not be evaluated, which results in partial inference. In -# that case, it might be useful to still emit no-member and other checks for -# the rest of the inferred objects. -ignore-on-opaque-inference=yes - -# List of symbolic message names to ignore for Mixin members. -ignored-checks-for-mixins=no-member, - not-async-context-manager, - not-context-manager, - attribute-defined-outside-init - -# List of class names for which member attributes should not be checked (useful -# for classes with dynamically set attributes). This supports the use of -# qualified names. -ignored-classes=optparse.Values,thread._local,_thread._local,argparse.Namespace - -# Show a hint with possible names when a member name was not found. The aspect -# of finding the hint is based on edit distance. -missing-member-hint=yes - -# The minimum edit distance a name should have in order to be considered a -# similar match for a missing member name. -missing-member-hint-distance=1 - -# The total number of similar names that should be taken in consideration when -# showing a hint for a missing member. -missing-member-max-choices=1 - -# Regex pattern to define which classes are considered mixins. -mixin-class-rgx=.*[Mm]ixin - -# List of decorators that change the signature of a decorated function. -signature-mutators= - - -[SIMILARITIES] - -# Comments are removed from the similarity computation -ignore-comments=yes - -# Docstrings are removed from the similarity computation -ignore-docstrings=yes - -# Imports are removed from the similarity computation -ignore-imports=yes - -# Signatures are removed from the similarity computation -ignore-signatures=yes - -# Minimum lines number of a similarity. -min-similarity-lines=4 - - -[SPELLING] - -# Limits count of emitted suggestions for spelling mistakes. -max-spelling-suggestions=4 - -# Spelling dictionary name. Available dictionaries: none. To make it work, -# install the 'python-enchant' package. -spelling-dict= - -# List of comma separated words that should be considered directives if they -# appear at the beginning of a comment and should not be checked. -spelling-ignore-comment-directives=fmt: on,fmt: off,noqa:,noqa,nosec,isort:skip,mypy: - -# List of comma separated words that should not be checked. -spelling-ignore-words= - -# A path to a file that contains the private dictionary; one word per line. -spelling-private-dict-file= - -# Tells whether to store unknown words to the private dictionary (see the -# --spelling-private-dict-file option) instead of raising a message. -spelling-store-unknown-words=no - - -[STRING] - -# This flag controls whether inconsistent-quotes generates a warning when the -# character used as a quote delimiter is used inconsistently within a module. -check-quote-consistency=no - -# This flag controls whether the implicit-str-concat should generate a warning -# on implicit string concatenation in sequences defined over several lines. -check-str-concat-over-line-jumps=no - - -[EXCEPTIONS] - -# Exceptions that will emit a warning when caught. -overgeneral-exceptions=BaseException, - Exception - - -[IMPORTS] - -# List of modules that can be imported at any level, not just the top level -# one. -allow-any-import-level= - -# Allow wildcard imports from modules that define __all__. -allow-wildcard-with-all=no - -# Deprecated modules which should not be used, separated by a comma. -deprecated-modules= - -# Output a graph (.gv or any supported image format) of external dependencies -# to the given file (report RP0402 must not be disabled). -ext-import-graph= - -# Output a graph (.gv or any supported image format) of all (i.e. internal and -# external) dependencies to the given file (report RP0402 must not be -# disabled). -import-graph= - -# Output a graph (.gv or any supported image format) of internal dependencies -# to the given file (report RP0402 must not be disabled). -int-import-graph= - -# Force import order to recognize a module as part of the standard -# compatibility libraries. -known-standard-library= - -# Force import order to recognize a module as part of a third party library. -known-third-party=enchant - -# Couples of modules and preferred modules, separated by a comma. -preferred-modules= - - -[VARIABLES] - -# List of additional names supposed to be defined in builtins. Remember that -# you should avoid defining new builtins when possible. -additional-builtins= - -# Tells whether unused global variables should be treated as a violation. -allow-global-unused-variables=yes - -# List of names allowed to shadow builtins -allowed-redefined-builtins= - -# List of strings which can identify a callback function by name. A callback -# name must start or end with one of those strings. -callbacks=cb_, - _cb - -# A regular expression matching the name of dummy variables (i.e. expected to -# not be used). -dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_ - -# Argument names that match this expression will be ignored. Default to name -# with leading underscore. -ignored-argument-names=_.*|^ignored_|^unused_ - -# Tells whether we should check for unused import in __init__ files. -init-import=no - -# List of qualified module names which can have objects that can redefine -# builtins. -redefining-builtins-modules=six.moves,past.builtins,future.builtins,builtins,io - - -[DESIGN] - -# List of regular expressions of class ancestor names to ignore when counting -# public methods (see R0903) -exclude-too-few-public-methods= - -# List of qualified class names to ignore when counting class parents (see -# R0901) -ignored-parents= - -# Maximum number of arguments for function / method. -max-args=5 - -# Maximum number of attributes for a class (see R0902). -max-attributes=7 - -# Maximum number of boolean expressions in an if statement (see R0916). -max-bool-expr=5 - -# Maximum number of branch for function / method body. -max-branches=12 - -# Maximum number of locals for function / method body. -max-locals=15 - -# Maximum number of parents for a class (see R0901). -max-parents=7 - -# Maximum number of public methods for a class (see R0904). -max-public-methods=20 - -# Maximum number of return / yield for function / method body. -max-returns=6 - -# Maximum number of statements in function / method body. -max-statements=50 - -# Minimum number of public methods for a class (see R0903). -min-public-methods=2 - - -[LOGGING] - -# The type of string formatting that logging methods do. `old` means using % -# formatting, `new` is for `{}` formatting. -logging-format-style=old - -# Logging modules to check that the string format arguments are in logging -# function parameter format. -logging-modules=logging - - -[BASIC] - -# Naming style matching correct argument names. -argument-naming-style=snake_case - -# Regular expression matching correct argument names. Overrides argument- -# naming-style. If left empty, argument names will be checked with the set -# naming style. -#argument-rgx= - -# Naming style matching correct attribute names. -attr-naming-style=snake_case - -# Regular expression matching correct attribute names. Overrides attr-naming- -# style. If left empty, attribute names will be checked with the set naming -# style. -#attr-rgx= - -# Bad variable names which should always be refused, separated by a comma. -bad-names=foo, - bar, - baz, - toto, - tutu, - tata - -# Bad variable names regexes, separated by a comma. If names match any regex, -# they will always be refused -bad-names-rgxs= - -# Naming style matching correct class attribute names. -class-attribute-naming-style=any - -# Regular expression matching correct class attribute names. Overrides class- -# attribute-naming-style. If left empty, class attribute names will be checked -# with the set naming style. -#class-attribute-rgx= - -# Naming style matching correct class constant names. -class-const-naming-style=UPPER_CASE - -# Regular expression matching correct class constant names. Overrides class- -# const-naming-style. If left empty, class constant names will be checked with -# the set naming style. -#class-const-rgx= - -# Naming style matching correct class names. -class-naming-style=PascalCase - -# Regular expression matching correct class names. Overrides class-naming- -# style. If left empty, class names will be checked with the set naming style. -#class-rgx= - -# Naming style matching correct constant names. -const-naming-style=UPPER_CASE - -# Regular expression matching correct constant names. Overrides const-naming- -# style. If left empty, constant names will be checked with the set naming -# style. -#const-rgx= - -# Minimum line length for functions/classes that require docstrings, shorter -# ones are exempt. -docstring-min-length=-1 - -# Naming style matching correct function names. -function-naming-style=snake_case - -# Regular expression matching correct function names. Overrides function- -# naming-style. If left empty, function names will be checked with the set -# naming style. -#function-rgx= - -# Good variable names which should always be accepted, separated by a comma. -good-names=i, - j, - k, - ex, - Run, - df, - f, - e, - x, - y, - ax, - n, - a, - b, - px, - py, - dx, - dy, - yx, - yx, - xd, - yd, - sx, - yp, - p, - _ - -# Good variable names regexes, separated by a comma. If names match any regex, -# they will always be accepted -good-names-rgxs= - -# Include a hint for the correct naming format with invalid-name. -include-naming-hint=no - -# Naming style matching correct inline iteration names. -inlinevar-naming-style=any - -# Regular expression matching correct inline iteration names. Overrides -# inlinevar-naming-style. If left empty, inline iteration names will be checked -# with the set naming style. -#inlinevar-rgx= - -# Naming style matching correct method names. -method-naming-style=snake_case - -# Regular expression matching correct method names. Overrides method-naming- -# style. If left empty, method names will be checked with the set naming style. -#method-rgx= - -# Naming style matching correct module names. -module-naming-style=snake_case - -# Regular expression matching correct module names. Overrides module-naming- -# style. If left empty, module names will be checked with the set naming style. -#module-rgx= - -# Colon-delimited sets of names that determine each other's naming style when -# the name regexes allow several styles. -name-group= - -# Regular expression which should only match function or class names that do -# not require a docstring. -no-docstring-rgx=^_ - -# List of decorators that produce properties, such as abc.abstractproperty. Add -# to this list to register other decorators that produce valid properties. -# These decorators are taken in consideration only for invalid-name. -property-classes=abc.abstractproperty - -# Regular expression matching correct type variable names. If left empty, type -# variable names will be checked with the set naming style. -#typevar-rgx= - -# Naming style matching correct variable names. -variable-naming-style=snake_case - -# Regular expression matching correct variable names. Overrides variable- -# naming-style. If left empty, variable names will be checked with the set -# naming style. -#variable-rgx= - - -[FORMAT] - -# Expected format of line ending, e.g. empty (any line ending), LF or CRLF. -expected-line-ending-format= - -# Regexp for a line that is allowed to be longer than the limit. -ignore-long-lines=^\s*(# )??$ - -# Number of spaces of indent required inside a hanging or continued line. -indent-after-paren=4 - -# String used as indentation unit. This is usually " " (4 spaces) or "\t" (1 -# tab). -indent-string=' ' - -# Maximum number of characters on a single line. -max-line-length=100 - -# Maximum number of lines in a module. -max-module-lines=1000 - -# Allow the body of a class to be on the same line as the declaration if body -# contains single statement. -single-line-class-stmt=no - -# Allow the body of an if to be on the same line as the test if there is no -# else. -single-line-if-stmt=no - - -[REFACTORING] - -# Maximum number of nested blocks for function / method body -max-nested-blocks=5 - -# Complete name of functions that never returns. When checking for -# inconsistent-return-statements if a never returning function is called then -# it will be considered as an explicit return statement and no message will be -# printed. -never-returning-functions=sys.exit,argparse.parse_error - - -[MISCELLANEOUS] - -# List of note tags to take in consideration, separated by a comma. -notes=FIXME, - XXX, - TODO - -# Regular expression of note tags to take in consideration. -notes-rgx= - - -[CLASSES] - -# Warn about protected attribute access inside special methods -check-protected-access-in-special-methods=no - -# List of method names used to declare (i.e. assign) instance attributes. -defining-attr-methods=__init__, - __new__, - setUp, - __post_init__ - -# List of member names, which should be excluded from the protected access -# warning. -exclude-protected=_asdict, - _fields, - _replace, - _source, - _make - -# List of valid names for the first argument in a class method. -valid-classmethod-first-arg=cls - -# List of valid names for the first argument in a metaclass class method. -valid-metaclass-classmethod-first-arg=cls diff --git a/Dockerfile b/Dockerfile index 39df9d8..ce6ec5d 100644 --- a/Dockerfile +++ b/Dockerfile @@ -1,18 +1,22 @@ # syntax=docker/dockerfile:1 -FROM python:3.8-slim-buster as base +FROM python:3.10-slim-buster as base # Setup ENV variables here (if needed in the future) FROM base as python-deps -# Install pipenv -RUN pip3 install pipenv +# Install pipx and poetry +RUN pip3 install --user pipx +ENV PATH=/root/.local/bin:$PATH +RUN pipx install poetry==1.4.2 +ENV PATH=/root/.local/pipx/venvs/poetry/bin:$PATH # Install python dependencies in /.venv -COPY Pipfile . -COPY Pipfile.lock . -RUN PIPENV_VENV_IN_PROJECT=1 pipenv install --deploy +COPY pyproject.toml . +COPY poetry.lock . +RUN poetry config virtualenvs.in-project true +RUN poetry install --only main FROM base diff --git a/Pipfile b/Pipfile deleted file mode 100644 index d07b14a..0000000 --- a/Pipfile +++ /dev/null @@ -1,32 +0,0 @@ -[[source]] -url = "https://pypi.org/simple" -verify_ssl = true -name = "pypi" - -[scripts] -start = "python3 -m kipubot" -dev = "watchfiles 'python3 -m kipubot' kipubot" -lint = "pylint kipubot" -test = "pytest" -test_hot = "watchfiles 'pytest' kipubot tests" - -[packages] -pandas = "*" -matplotlib = "*" -scipy = "*" -python-dotenv = "*" -python-telegram-bot = ">=20.0a0" -psycopg = ">=3" -openpyxl = "*" -pytz = "*" -uncertainties = "*" - -[dev-packages] -watchfiles="*" -autopep8 = "*" -pylint = "*" -pytype = "*" -pytest = "*" - -[requires] -python_version = "3.8" diff --git a/Pipfile.lock b/Pipfile.lock deleted file mode 100644 index 381f50f..0000000 --- a/Pipfile.lock +++ /dev/null @@ -1,1004 +0,0 @@ -{ - "_meta": { - "hash": { - "sha256": "b86aa6abec32c723b4a5ccbd509740c8f6bc65601e69f08aa037354ec28d629a" - }, - "pipfile-spec": 6, - "requires": { - "python_version": "3.8" - }, - "sources": [ - { - "name": "pypi", - "url": "https://pypi.org/simple", - "verify_ssl": true - } - ] - }, - "default": { - "anyio": { - "hashes": [ - "sha256:413adf95f93886e442aea925f3ee43baa5a765a64a0f52c6081894f9992fdd0b", - 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], - "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'", - "version": "==1.14.1" - } - } -} diff --git a/README.md b/README.md index 9c0554d..6dbf3fa 100644 --- a/README.md +++ b/README.md @@ -16,15 +16,14 @@ Add the bot on [Telegram](https://t.me/NoPainNoGraphbot) into your group and enj ### Docker (Recommended) -1. Set `PYTHONPATH=${PYTHONPATH}:kipubot` in .env -2. Set `BOT_TOKEN` in .env -3. `docker-compose -f docker-compose.dev.yml up` -### Pipenv +1. Set `BOT_TOKEN` in .env +2. `docker compose -f docker-compose.dev.yml up` + +### Poetry -Using [pipenv](https://pipenv.pypa.io/en/latest/): +Using [poetry](https://python-poetry.org/docs/): -1. Set `PYTHONPATH=${PYTHONPATH}:kipubot` in .env 2. Set `BOT_TOKEN` in .env 3. Set `DATABASE_URL` in .env -4. pipenv install --dev -5. pipenv run dev +4. poetry install +5. poetry run poe dev diff --git a/dev.Dockerfile b/dev.Dockerfile index 5dad4f8..724ad9b 100644 --- a/dev.Dockerfile +++ b/dev.Dockerfile @@ -1,20 +1,23 @@ # syntax=docker/dockerfile:1 -FROM python:3.8 as base +FROM python:3.10 as base # Setup ENV variables here (if needed in the future) FROM base as python-deps -# Install pipenv -RUN pip3 install pipenv +# Install pipx and poetry +RUN pip3 install --user pipx +ENV PATH=/root/.local/bin:$PATH +RUN pipx install poetry==1.4.2 +ENV PATH=/root/.local/pipx/venvs/poetry/bin:$PATH # Install python dependencies in /.venv WORKDIR /bot -COPY Pipfile . -COPY Pipfile.lock . -RUN pipenv install --dev +COPY pyproject.toml . +COPY poetry.lock . +RUN poetry install COPY . . # Run the app -CMD [ "pipenv", "run", "dev" ] +CMD [ "poetry", "run", "poe", "dev" ] diff --git a/kipubot/__init__.py b/kipubot/__init__.py index 57019de..1b8cdb7 100644 --- a/kipubot/__init__.py +++ b/kipubot/__init__.py @@ -8,38 +8,33 @@ # LOGGING CONFIG logging.basicConfig( - format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', - level=logging.INFO + format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO ) # ENV VARIABLES -BOT_TOKEN = os.getenv('BOT_TOKEN', default=None) -DATABASE_URL = os.getenv('DATABASE_URL', default=None) -DEVELOPER_CHAT_ID = os.getenv('DEVELOPER_CHAT_ID', default=None) -MODE = os.getenv('MODE', default=None) +BOT_TOKEN = os.getenv("BOT_TOKEN", default=None) +DATABASE_URL = os.getenv("DATABASE_URL", default=None) +DEVELOPER_CHAT_ID = os.getenv("DEVELOPER_CHAT_ID", default=None) +MODE = os.getenv("MODE", default=None) if BOT_TOKEN is None and MODE != "TEST": - logging.error('Bot token is not set!') + logging.error("Bot token is not set!") sys.exit(1) if DATABASE_URL is None: - logging.error('Database URL is not set!') + logging.error("Database URL is not set!") sys.exit(1) if DEVELOPER_CHAT_ID is None: - logging.warning('Developer chat ID is not set!') + logging.warning("Developer chat ID is not set!") # INITIALIZE DB AND CREATE TABLES IF THEY DON'T EXIST kipubot.db._init_db(DATABASE_URL) # pylint: disable=protected-access # CHECK/CREATE DATA DIRECTORY -if not os.path.exists('data'): - logging.info('Creating ./data/ directory...') - os.mkdir('data') - -__all__ = ( - 'BOT_TOKEN', - 'DATABASE_URL', - 'DEVELOPER_CHAT_ID' -) +if not os.path.exists("data"): + logging.info("Creating ./data/ directory...") + os.mkdir("data") + +__all__ = ("BOT_TOKEN", "DATABASE_URL", "DEVELOPER_CHAT_ID") diff --git a/kipubot/bot.py b/kipubot/bot.py index 48f8270..541cc7f 100644 --- a/kipubot/bot.py +++ b/kipubot/bot.py @@ -3,20 +3,23 @@ from telegram.ext import ApplicationBuilder, PicklePersistence from kipubot import BOT_TOKEN -from kipubot.handlers import (start_handler, moro_handler, excel_file_handler, - bot_added_handler, winner_handler, graph_handler, - expected_value_handler, raffle_setup_handler, no_dm_handler, - error_handler) +from kipubot.handlers import ( + start_handler, + moro_handler, + excel_file_handler, + bot_added_handler, + winner_handler, + graph_handler, + expected_value_handler, + raffle_setup_handler, + no_dm_handler, + error_handler, +) def main() -> None: - persistence = PicklePersistence(filepath='data/.pkl') - app = ( - ApplicationBuilder() - .token(BOT_TOKEN) - .persistence(persistence) - .build() - ) + persistence = PicklePersistence(filepath="data/.pkl") + app = ApplicationBuilder().token(BOT_TOKEN).persistence(persistence).build() app.add_handler(start_handler) diff --git a/kipubot/constants.py b/kipubot/constants.py index b64709d..2025616 100644 --- a/kipubot/constants.py +++ b/kipubot/constants.py @@ -1,51 +1,59 @@ # CONSTANTS -EXCEL_MIME = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' +EXCEL_MIME = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" STRINGS = { - 'moro_prompt': 'Join the raffles in %(chat_title)s by typing /moro or /hello!', - 'not_winner': 'You are not the winner in any chat! ❌', - 'choose_channel': 'Choose channel:', - 'chat_button': '💬 %(chat_title)s', - 'cancel_button': '❌ Cancel', - 'no_raffle': 'No raffle data found in %(chat_title)s!', - 'raffle_db_error': ('Error getting raffle data from database!\n\n' + - 'Perhaps one is not setup yet for this chat? 🤔'), - 'no_entries': 'No raffle entries yet in %(chat_title)s!', - 'no_data': 'No data found for %(chat_title)s!', - 'moro': 'Registered %(username)s in %(chat_title)s!', - 'double_moro': 'You are already registered in %(chat_title)s!', - 'no_dm_warn': 'This command is not usable in private messages!', - 'cancelled': 'Cancelled! ❌', - 'unknown_error': 'Unknown error, please try again later! ❌', - 'server_error': ('Server error, please try again later! ❌\n\n' + - 'The administration has been contacted.'), - 'invalid_file': 'Invalid Excel file! ❌\n\n/start for instructions', - 'new_raffle_button': '🆕 Create a new raffle!', - 'update_raffle_button': '🔄 Update existing raffle!', - 'raffle_setup_base': ('📝 Raffle setup for %(chat_title)s\n' + - '=============================\n\n'), - 'raffle_setup_update_or_new': ('Found existing raffle.\n' + - 'Do you want update it or create a new one?'), - 'raffle_setup_new': ('No existing raffle found.\n' + - 'Do you want to create a new one?'), - 'updated_raffle': 'Updated raffle data in %(chat_title)s! 🔄', - 'raffle_setup_start_date': 'Start date set to %(start_date)s!\n', - 'raffle_setup_end_date': 'End date set to %(end_date)s!\n\n', - 'raffle_setup_fee': 'Fee set to %(fee)s €!\n\n', - 'end_date_before_start': 'End date cannot be before start date! ❌', - 'negative_fee': 'Fee cannot be negative! ❌', - 'confirm_button': '✔️ Confirm', - 'finish_raffle_button': '✔️ Finish raffle', - 'raffle_confirmation': 'Succesfully setup new raffle in %(chat_title)s! ✔️', - 'raffle_created_chat': 'New raffle created by @%(username)s! ✔️', - 'raffle_updated_chat': 'Raffle updated by @%(username)s! ✔️', - 'timed_out': 'Timed out! 🕐', - 'start_prompt': ('Use the given commands or send me an Excel-file ' + - 'from MobilePay if you\'re the host of a raffle!'), - 'invalid_winner_usage': 'Please use the format /winner @username', - 'forbidden_command': 'You are not allowed to use this command! ❌', - 'user_not_found': ('Error getting user!\n' + - 'Perhaps they haven\'t /moro ed? 🤔'), - 'already_winner': 'You are already the winner!', - 'winner_confirmation': '%(username)s is the new winner!' + "moro_prompt": "Join the raffles in %(chat_title)s by typing /moro or /hello!", + "not_winner": "You are not the winner in any chat! ❌", + "choose_channel": "Choose channel:", + "chat_button": "💬 %(chat_title)s", + "cancel_button": "❌ Cancel", + "no_raffle": "No raffle data found in %(chat_title)s!", + "raffle_db_error": ( + "Error getting raffle data from database!\n\n" + + "Perhaps one is not setup yet for this chat? 🤔" + ), + "no_entries": "No raffle entries yet in %(chat_title)s!", + "no_data": "No data found for %(chat_title)s!", + "moro": "Registered %(username)s in %(chat_title)s!", + "double_moro": "You are already registered in %(chat_title)s!", + "no_dm_warn": "This command is not usable in private messages!", + "cancelled": "Cancelled! ❌", + "unknown_error": "Unknown error, please try again later! ❌", + "server_error": ( + "Server error, please try again later! ❌\n\n" + + "The administration has been contacted." + ), + "invalid_file": "Invalid Excel file! ❌\n\n/start for instructions", + "new_raffle_button": "🆕 Create a new raffle!", + "update_raffle_button": "🔄 Update existing raffle!", + "raffle_setup_base": ( + "📝 Raffle setup for %(chat_title)s\n" + "=============================\n\n" + ), + "raffle_setup_update_or_new": ( + "Found existing raffle.\n" + "Do you want update it or create a new one?" + ), + "raffle_setup_new": ( + "No existing raffle found.\n" + "Do you want to create a new one?" + ), + "updated_raffle": "Updated raffle data in %(chat_title)s! 🔄", + "raffle_setup_start_date": "Start date set to %(start_date)s!\n", + "raffle_setup_end_date": "End date set to %(end_date)s!\n\n", + "raffle_setup_fee": "Fee set to %(fee)s €!\n\n", + "end_date_before_start": "End date cannot be before start date! ❌", + "negative_fee": "Fee cannot be negative! ❌", + "confirm_button": "✔️ Confirm", + "finish_raffle_button": "✔️ Finish raffle", + "raffle_confirmation": "Succesfully setup new raffle in %(chat_title)s! ✔️", + "raffle_created_chat": "New raffle created by @%(username)s! ✔️", + "raffle_updated_chat": "Raffle updated by @%(username)s! ✔️", + "timed_out": "Timed out! 🕐", + "start_prompt": ( + "Use the given commands or send me an Excel-file " + + "from MobilePay if you're the host of a raffle!" + ), + "invalid_winner_usage": "Please use the format /winner @username", + "forbidden_command": "You are not allowed to use this command! ❌", + "user_not_found": ("Error getting user!\n" + "Perhaps they haven't /moro ed? 🤔"), + "already_winner": "You are already the winner!", + "winner_confirmation": "%(username)s is the new winner!", } diff --git a/kipubot/db.py b/kipubot/db.py index a970bb2..9c83daa 100644 --- a/kipubot/db.py +++ b/kipubot/db.py @@ -16,31 +16,38 @@ def _init_db(url: str) -> None: global _CON # pylint: disable=global-statement if not _CON: - _logger.info('Connecting to DB...') + _logger.info("Connecting to DB...") _CON = psycopg.connect(url) - _logger.info('Connected!') + _logger.info("Connected!") - _logger.info('Initializing database...') + _logger.info("Initializing database...") try: - _CON.execute('''CREATE TABLE IF NOT EXISTS chat ( + _CON.execute( + """CREATE TABLE IF NOT EXISTS chat ( chat_id BIGINT PRIMARY KEY, title VARCHAR(128), admins BIGINT[], prev_winners BIGINT[], cur_winner BIGINT - )''') + )""" + ) - _CON.execute('''CREATE TABLE IF NOT EXISTS chat_user ( + _CON.execute( + """CREATE TABLE IF NOT EXISTS chat_user ( user_id BIGINT PRIMARY KEY - )''') + )""" + ) - _CON.execute('''CREATE TABLE IF NOT EXISTS in_chat ( + _CON.execute( + """CREATE TABLE IF NOT EXISTS in_chat ( user_id BIGINT REFERENCES chat_user(user_id), chat_id BIGINT REFERENCES chat(chat_id), PRIMARY KEY (user_id, chat_id) - )''') + )""" + ) - _CON.execute('''CREATE TABLE IF NOT EXISTS raffle ( + _CON.execute( + """CREATE TABLE IF NOT EXISTS raffle ( chat_id BIGINT PRIMARY KEY REFERENCES chat(chat_id), start_date TIMESTAMP, end_date TIMESTAMP, @@ -48,69 +55,77 @@ def _init_db(url: str) -> None: dates TIMESTAMP[], entries VARCHAR(128)[], amounts INTEGER[] - )''') + )""" + ) except PSErrors.Error as e: - _logger.error('Unknown error during database initialization:') + _logger.error("Unknown error during database initialization:") _logger.error(e) _CON.rollback() else: - _logger.info('Database succesfully initialized!') + _logger.info("Database succesfully initialized!") _CON.commit() def get_registered_member_ids(chat_id: int) -> List[int]: - return [row[0] for row in _CON.execute( - '''SELECT chat_user.user_id + return [ + row[0] + for row in _CON.execute( + """SELECT chat_user.user_id FROM chat_user, in_chat - WHERE chat_id = %s AND chat_user.user_id = in_chat.user_id''', (chat_id,)).fetchall()] + WHERE chat_id = %s AND chat_user.user_id = in_chat.user_id""", + (chat_id,), + ).fetchall() + ] def get_admin_ids(chat_id: int) -> List[int]: - return (_CON.execute( - 'SELECT admins FROM chat WHERE chat_id = %s', (chat_id,)) - .fetchone()[0]) + return _CON.execute( + "SELECT admins FROM chat WHERE chat_id = %s", (chat_id,) + ).fetchone()[0] def get_prev_winner_ids(chat_id: int) -> List[int]: - return (_CON.execute( - 'SELECT prev_winners FROM chat WHERE chat_id = %s', (chat_id,)) - .fetchone()[0]) + return _CON.execute( + "SELECT prev_winners FROM chat WHERE chat_id = %s", (chat_id,) + ).fetchone()[0] def get_winner_id(chat_id: int) -> int: - return (_CON.execute( - 'SELECT cur_winner FROM chat WHERE chat_id = %s', (chat_id,)) - .fetchone()[0]) + return _CON.execute( + "SELECT cur_winner FROM chat WHERE chat_id = %s", (chat_id,) + ).fetchone()[0] def get_chats_where_winner(user_id: int) -> List[Tuple[int, str]]: return _CON.execute( - '''SELECT c.chat_id, c.title + """SELECT c.chat_id, c.title FROM chat AS c, in_chat as i WHERE i.user_id = %(id)s AND c.chat_id = i.chat_id - AND (c.cur_winner = %(id)s)''', - {'id': user_id}).fetchall() - - -def get_raffle_data(chat_id: int) -> Tuple[ - int, Timestamp, Timestamp, int, - List[Timestamp], List[str], List[int]]: - return _CON.execute( - 'SELECT * FROM raffle WHERE chat_id = %s', [chat_id]).fetchone() - - -def save_raffle_data(chat_id: int, - start_date: Timestamp, - end_date: Timestamp, - entry_fee: int, - df: DataFrame) -> None: - - dates = df['date'].tolist() - entries = df['name'].tolist() - amounts = df['amount'].tolist() - - _CON.execute('''INSERT INTO raffle + AND (c.cur_winner = %(id)s)""", + {"id": user_id}, + ).fetchall() + + +def get_raffle_data( + chat_id: int, +) -> Tuple[int, Timestamp, Timestamp, int, List[Timestamp], List[str], List[int]]: + return _CON.execute("SELECT * FROM raffle WHERE chat_id = %s", [chat_id]).fetchone() + + +def save_raffle_data( + chat_id: int, + start_date: Timestamp, + end_date: Timestamp, + entry_fee: int, + df: DataFrame, +) -> None: + dates = df["date"].tolist() + entries = df["name"].tolist() + amounts = df["amount"].tolist() + + _CON.execute( + """INSERT INTO raffle VALUES (%s, %s, %s, %s, %s, %s, %s) ON CONFLICT (chat_id) DO UPDATE SET @@ -119,50 +134,55 @@ def save_raffle_data(chat_id: int, entry_fee = EXCLUDED.entry_fee, dates = EXCLUDED.dates, entries = EXCLUDED.entries, - amounts = EXCLUDED.amounts''', - (chat_id, start_date, end_date, entry_fee, dates, entries, amounts)) + amounts = EXCLUDED.amounts""", + (chat_id, start_date, end_date, entry_fee, dates, entries, amounts), + ) _CON.commit() def delete_raffle_data(chat_id: int): - _CON.execute('''DELETE FROM raffle where chat_id=%s''', (chat_id,)) + _CON.execute("""DELETE FROM raffle where chat_id=%s""", (chat_id,)) _CON.commit() def save_user_or_ignore(user_id: int) -> None: - _CON.execute('''INSERT INTO chat_user + _CON.execute( + """INSERT INTO chat_user VALUES (%s) ON CONFLICT (user_id) - DO NOTHING''', - (user_id,)) + DO NOTHING""", + (user_id,), + ) _CON.commit() def save_chat_or_ignore(chat_id: int, title: str, admin_ids: List[int]) -> None: - _CON.execute('''INSERT INTO chat (chat_id, title, admins) + _CON.execute( + """INSERT INTO chat (chat_id, title, admins) VALUES (%s, %s, %s) ON CONFLICT (chat_id) - DO NOTHING''', - (chat_id, title, admin_ids)) + DO NOTHING""", + (chat_id, title, admin_ids), + ) _CON.commit() def delete_chat(chat_id: int): - _CON.execute('''DELETE FROM chat where chat_id=%s''', (chat_id,)) + _CON.execute("""DELETE FROM chat where chat_id=%s""", (chat_id,)) _CON.commit() - def register_user(chat_id: int, user_id: int) -> None: - save_user_or_ignore(user_id) try: - _CON.execute('''INSERT INTO in_chat(user_id, chat_id) - VALUES (%s, %s)''', - (user_id, chat_id)) + _CON.execute( + """INSERT INTO in_chat(user_id, chat_id) + VALUES (%s, %s)""", + (user_id, chat_id), + ) except PSErrors.UniqueViolation as e: _CON.rollback() raise AlreadyRegisteredError from e @@ -178,26 +198,32 @@ def register_user_or_ignore(chat_id: int, user_id: int) -> None: def admin_cycle_winners(winner_id: int, chat_id: int) -> None: - _CON.execute('''UPDATE chat + _CON.execute( + """UPDATE chat SET prev_winners = array_append(prev_winners, cur_winner), cur_winner=%s - WHERE chat_id=%s''', - (winner_id, chat_id)) + WHERE chat_id=%s""", + (winner_id, chat_id), + ) _CON.commit() def replace_cur_winner(winner_id: int, chat_id: int) -> None: - _CON.execute('''UPDATE chat + _CON.execute( + """UPDATE chat SET cur_winner=%s - WHERE chat_id=%s''', - (winner_id, chat_id)) + WHERE chat_id=%s""", + (winner_id, chat_id), + ) _CON.commit() def cycle_winners(user_id: int, winner_id: int, chat_id: int) -> None: - _CON.execute('''UPDATE chat + _CON.execute( + """UPDATE chat SET prev_winners=array_append(prev_winners, %s), cur_winner=%s' - WHERE chat_id=%s''', - (user_id, winner_id, chat_id)) + WHERE chat_id=%s""", + (user_id, winner_id, chat_id), + ) _CON.commit() diff --git a/kipubot/handlers/__init__.py b/kipubot/handlers/__init__.py index 34a2cc8..a6aeb26 100644 --- a/kipubot/handlers/__init__.py +++ b/kipubot/handlers/__init__.py @@ -8,7 +8,7 @@ "expected_value_handler", "raffle_setup_handler", "no_dm_handler", - "error_handler" + "error_handler", ) from ._raffle_setup_handler import raffle_setup_handler diff --git a/kipubot/handlers/_bot_added_handler.py b/kipubot/handlers/_bot_added_handler.py index 40f08d2..0789acb 100644 --- a/kipubot/handlers/_bot_added_handler.py +++ b/kipubot/handlers/_bot_added_handler.py @@ -3,8 +3,7 @@ from telegram.constants import ChatMemberStatus import psycopg.errors as PSErrors from kipubot.constants import STRINGS -from kipubot.db import (save_chat_or_ignore, - save_user_or_ignore, register_user_or_ignore) +from kipubot.db import save_chat_or_ignore, save_user_or_ignore, register_user_or_ignore async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: @@ -26,18 +25,19 @@ async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: register_user_or_ignore(chat_id, user_id) except PSErrors.IntegrityError as e: - print('SQLite Error: ' + str(e)) + print("SQLite Error: " + str(e)) await context.bot.send_message( - chat_id=chat_id, - text=STRINGS['unknown_error'] + chat_id=chat_id, text=STRINGS["unknown_error"] ) else: # Kiitos pääsystä! -stigu await context.bot.send_sticker( chat_id=chat_id, - sticker='CAACAgQAAxkBAAIBPmLicTHP2Xv8IcFzxHYocjLRFBvQAAI5AAMcLHsXd9jLHwYNcSEpBA') + sticker="CAACAgQAAxkBAAIBPmLicTHP2Xv8IcFzxHYocjLRFBvQAAI5AAMcLHsXd9jLHwYNcSEpBA", + ) await context.bot.send_message( - chat_id=chat_id, - text=STRINGS['moro_prompt'] % {'chat_title': title}) + chat_id=chat_id, text=STRINGS["moro_prompt"] % {"chat_title": title} + ) + bot_added_handler = ChatMemberHandler(bot_added, -1) diff --git a/kipubot/handlers/_error_handler.py b/kipubot/handlers/_error_handler.py index 139b485..3022dc0 100644 --- a/kipubot/handlers/_error_handler.py +++ b/kipubot/handlers/_error_handler.py @@ -13,22 +13,27 @@ async def error_handler(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: """Log the error and send a telegram message to notify the developer.""" - # Log the error before we do anything else, so we can see it even if something breaks. - _logger.error(msg="Exception while handling an update:", - exc_info=context.error) + # Log the error before we do anything else, + # so we can see it even if something breaks. + _logger.error(msg="Exception while handling an update:", exc_info=context.error) - # traceback.format_exception returns the usual python message about an exception, but as a - # list of strings rather than a single string, so we have to join them together. + # traceback.format_exception returns the usual python message about an exception, + # but as a list of strings rather than a single string, + # so we have to join them together. tb_list = traceback.format_exception( - None, context.error, context.error.__traceback__) + None, context.error, context.error.__traceback__ + ) tb_string = "".join(tb_list) # Build the message with some markup and additional information about what happened. - # You might need to add some logic to deal with messages longer than the 4096 character limit. + # You might need to add some logic to deal with + # messages longer than the 4096 character limit. update_str = update.to_dict() if isinstance(update, Update) else str(update) message = ( f"An exception was raised while handling an update\n" - f"
update = {html.escape(json.dumps(update_str, indent=2, ensure_ascii=False))}"
+        f"""
update = {html.escape(
+            json.dumps(update_str, indent=2, ensure_ascii=False)
+        )}"""
         "
\n\n"
         f"
context.chat_data = {html.escape(str(context.chat_data))}
\n\n"
         f"
context.user_data = {html.escape(str(context.user_data))}
\n\n"
@@ -41,5 +46,5 @@ async def error_handler(update: Update, context: ContextTypes.DEFAULT_TYPE) -> N
     )
     # Also send a message to the user who triggered the error.
     await context.bot.send_message(
-        chat_id=update.effective_chat.id, text=STRINGS['server_error']
+        chat_id=update.effective_chat.id, text=STRINGS["server_error"]
     )
diff --git a/kipubot/handlers/_excel_file_handler.py b/kipubot/handlers/_excel_file_handler.py
index f51daff..11205cf 100644
--- a/kipubot/handlers/_excel_file_handler.py
+++ b/kipubot/handlers/_excel_file_handler.py
@@ -8,49 +8,56 @@
 from kipubot.db import get_chats_where_winner
 
 
-async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> Optional[str]:
+async def excel_file(
+    update: Update, context: ContextTypes.DEFAULT_TYPE
+) -> Optional[str]:
     user_id = update.effective_user.id
     dm_id = update.effective_chat.id
 
     chats = get_chats_where_winner(user_id)
 
     if len(chats) == 0:
-        await update.message.reply_text(STRINGS['not_winner'])
+        await update.message.reply_text(STRINGS["not_winner"])
         return ConversationHandler.END
 
     doc = update.message.document
     file = await context.bot.get_file(doc)
-    base_path = f'data/{dm_id}'
-    excel_path = base_path + '/data.xlsx'
+    base_path = f"data/{dm_id}"
+    excel_path = base_path + "/data.xlsx"
 
     if not os.path.exists(base_path):
         os.mkdir(base_path)
 
-    with open(excel_path, 'wb') as f:
+    with open(excel_path, "wb") as f:
         await file.download(out=f)
 
     if not validate_excel(excel_path):
-        await update.message.reply_text(STRINGS['invalid_file'])
+        await update.message.reply_text(STRINGS["invalid_file"])
         os.remove(excel_path)
         return
 
     chat_buttons = []
 
     for chat_id, chat_title in chats:
-        chat_buttons.append(InlineKeyboardButton(
-            STRINGS['chat_button'] % {'chat_title': chat_title},
-            callback_data=f'raffle:chat_selected:{chat_id}:{chat_title}'))
+        chat_buttons.append(
+            InlineKeyboardButton(
+                STRINGS["chat_button"] % {"chat_title": chat_title},
+                callback_data=f"raffle:chat_selected:{chat_id}:{chat_title}",
+            )
+        )
 
     keyboard = [
         chat_buttons,
-        [InlineKeyboardButton(STRINGS['cancel_button'],
-                              callback_data='raffle:cancel')]
+        [InlineKeyboardButton(STRINGS["cancel_button"], callback_data="raffle:cancel")],
     ]
 
     reply_markup = InlineKeyboardMarkup(keyboard)
 
     await update.message.reply_text(
-        STRINGS['choose_channel'], reply_markup=reply_markup)
+        STRINGS["choose_channel"], reply_markup=reply_markup
+    )
 
-excel_file_handler = MessageHandler(Filters.Document.MimeType(EXCEL_MIME) &
-                                    Filters.ChatType.PRIVATE, excel_file)
+
+excel_file_handler = MessageHandler(
+    Filters.Document.MimeType(EXCEL_MIME) & Filters.ChatType.PRIVATE, excel_file
+)
diff --git a/kipubot/handlers/_graph_handlers.py b/kipubot/handlers/_graph_handlers.py
index 1343d8b..bac0ce8 100644
--- a/kipubot/handlers/_graph_handlers.py
+++ b/kipubot/handlers/_graph_handlers.py
@@ -9,22 +9,25 @@
 
 
 class GraphType(Enum):
-    EXPECTED = 'expected'
-    GRAPH = 'graph'
+    EXPECTED = "expected"
+    GRAPH = "graph"
 
 
 def get_graph_img(graph_type: GraphType) -> str:
     if graph_type == GraphType.EXPECTED:
-        return 'expected.png'
+        return "expected.png"
 
-    return 'graph.png'
+    return "graph.png"
 
 
-async def graph(update: Update, _context: ContextTypes.DEFAULT_TYPE,
-                graph_type: GraphType = GraphType.GRAPH) -> None:
+async def graph(
+    update: Update,
+    _context: ContextTypes.DEFAULT_TYPE,
+    graph_type: GraphType = GraphType.GRAPH,
+) -> None:
     chat_id = update.effective_chat.id
     chat_title = update.effective_chat.title
-    graph_path = f'data/{chat_id}/{get_graph_img(graph_type)}'
+    graph_path = f"data/{chat_id}/{get_graph_img(graph_type)}"
 
     try:
         if graph_type == GraphType.EXPECTED:
@@ -32,23 +35,28 @@ async def graph(update: Update, _context: ContextTypes.DEFAULT_TYPE,
         else:
             generate_graph(graph_path, chat_id, chat_title)
 
-        with open(graph_path, 'rb') as f:
+        with open(graph_path, "rb") as f:
             await update.message.reply_photo(photo=f)
 
     except NoRaffleError:
-        await update.message.reply_text(STRINGS['no_raffle'] % {'chat_title': chat_title})
+        await update.message.reply_text(
+            STRINGS["no_raffle"] % {"chat_title": chat_title}
+        )
     except NoEntriesError:
-        await update.message.reply_text(STRINGS['no_entries'] % {'chat_title': chat_title})
+        await update.message.reply_text(
+            STRINGS["no_entries"] % {"chat_title": chat_title}
+        )
     except PSErrors.Error as e:
         print(e)
-        await update.message.reply_text(STRINGS['raffle_db_error'])
+        await update.message.reply_text(STRINGS["raffle_db_error"])
     except FileNotFoundError:
-        await update.message.reply_text(STRINGS['no_data'] % {'chat_title': chat_title})
+        await update.message.reply_text(STRINGS["no_data"] % {"chat_title": chat_title})
 
-graph_handler = CommandHandler(
-    ['kuvaaja', 'graph'], graph, ~Filters.ChatType.PRIVATE)
+
+graph_handler = CommandHandler(["kuvaaja", "graph"], graph, ~Filters.ChatType.PRIVATE)
 
 expected_value_handler = CommandHandler(
-    ['odotusarvo', 'expected'],
+    ["odotusarvo", "expected"],
     lambda u, c: graph(u, c, graph_type=GraphType.EXPECTED),
-    ~Filters.ChatType.PRIVATE)
+    ~Filters.ChatType.PRIVATE,
+)
diff --git a/kipubot/handlers/_moro_handler.py b/kipubot/handlers/_moro_handler.py
index 0495665..f81b648 100644
--- a/kipubot/handlers/_moro_handler.py
+++ b/kipubot/handlers/_moro_handler.py
@@ -16,11 +16,13 @@ async def hello(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
         register_user(chat_id, user_id)
 
     except AlreadyRegisteredError:
-        await update.message.reply_text(STRINGS['double_moro'] %
-                                        {'username': username, 'chat_title': chat})
+        await update.message.reply_text(
+            STRINGS["double_moro"] % {"username": username, "chat_title": chat}
+        )
     else:
-        await update.message.reply_text(STRINGS['moro'] %
-                                        {'username': username, 'chat_title': chat})
+        await update.message.reply_text(
+            STRINGS["moro"] % {"username": username, "chat_title": chat}
+        )
 
-moro_handler = CommandHandler(
-    ['moro', 'hello'], hello, ~Filters.ChatType.PRIVATE)
+
+moro_handler = CommandHandler(["moro", "hello"], hello, ~Filters.ChatType.PRIVATE)
diff --git a/kipubot/handlers/_no_dm_handler.py b/kipubot/handlers/_no_dm_handler.py
index 6916bf8..6696920 100644
--- a/kipubot/handlers/_no_dm_handler.py
+++ b/kipubot/handlers/_no_dm_handler.py
@@ -5,8 +5,11 @@
 
 
 async def chat_only(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
-    await update.message.reply_text(STRINGS['no_dm_warn'])
+    await update.message.reply_text(STRINGS["no_dm_warn"])
+
 
 no_dm_handler = CommandHandler(
-    ['moro', 'hello', 'kuvaaja', 'graph', 'voittaja', 'winner'],
-    chat_only, Filters.ChatType.PRIVATE)
+    ["moro", "hello", "kuvaaja", "graph", "voittaja", "winner"],
+    chat_only,
+    Filters.ChatType.PRIVATE,
+)
diff --git a/kipubot/handlers/_raffle_setup_handler.py b/kipubot/handlers/_raffle_setup_handler.py
index 8a21a4c..2274040 100644
--- a/kipubot/handlers/_raffle_setup_handler.py
+++ b/kipubot/handlers/_raffle_setup_handler.py
@@ -4,8 +4,15 @@
 from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
 from telegram.ext import ConversationHandler, CallbackQueryHandler, CallbackContext
 from kipubot.constants import STRINGS
-from kipubot.utils import (get_raffle, save_raffle, read_excel_to_df, is_int,
-                           is_float, get_cur_time_hel, int_price_to_str)
+from kipubot.utils import (
+    get_raffle,
+    save_raffle,
+    read_excel_to_df,
+    is_int,
+    is_float,
+    get_cur_time_hel,
+    int_price_to_str,
+)
 from kipubot.errors import NoRaffleError
 
 # ==================
@@ -18,24 +25,25 @@
 
 async def cancel_convo(update: Update, context: CallbackContext) -> int:
     query = update.callback_query
-    await query.message.edit_text(STRINGS['cancelled'], reply_markup=None)
+    await query.message.edit_text(STRINGS["cancelled"], reply_markup=None)
     context.user_data.clear()
     return ConversationHandler.END
 
 
 async def convo_error(update: Update, context: CallbackContext) -> int:
     query = update.callback_query
-    await query.message.edit_text(STRINGS['unknown_error'], reply_markup=None)
+    await query.message.edit_text(STRINGS["unknown_error"], reply_markup=None)
     context.user_data.clear()
     return ConversationHandler.END
 
 
 async def convo_timeout(update: Update, context: CallbackContext) -> int:
     query = update.callback_query
-    await query.message.edit_text(STRINGS['timed_out'], reply_markup=None)
+    await query.message.edit_text(STRINGS["timed_out"], reply_markup=None)
     context.user_data.clear()
     return ConversationHandler.END
 
+
 # KEYBOARD COMPONENTS
 # --------------------
 
@@ -43,66 +51,71 @@ async def convo_timeout(update: Update, context: CallbackContext) -> int:
 def raffle_keyboard(has_existing: bool = False) -> InlineKeyboardMarkup:
     if has_existing:
         keyboard = [
-            [InlineKeyboardButton(
-                STRINGS['new_raffle_button'], callback_data='raffle:setup:new')],
-            [InlineKeyboardButton(
-                STRINGS['update_raffle_button'], callback_data='raffle:setup:old')],
-            [InlineKeyboardButton(
-                STRINGS['cancel_button'],
-                callback_data='raffle:cancel')]
+            [
+                InlineKeyboardButton(
+                    STRINGS["new_raffle_button"], callback_data="raffle:setup:new"
+                )
+            ],
+            [
+                InlineKeyboardButton(
+                    STRINGS["update_raffle_button"], callback_data="raffle:setup:old"
+                )
+            ],
+            [
+                InlineKeyboardButton(
+                    STRINGS["cancel_button"], callback_data="raffle:cancel"
+                )
+            ],
         ]
         return InlineKeyboardMarkup(keyboard)
 
     keyboard = [
-        [InlineKeyboardButton(
-            STRINGS['new_raffle_button'], callback_data='raffle:setup:new')],
-        [InlineKeyboardButton(
-            STRINGS['cancel_button'], callback_data='raffle:cancel')],
+        [
+            InlineKeyboardButton(
+                STRINGS["new_raffle_button"], callback_data="raffle:setup:new"
+            )
+        ],
+        [InlineKeyboardButton(STRINGS["cancel_button"], callback_data="raffle:cancel")],
     ]
     return InlineKeyboardMarkup(keyboard)
 
 
 def date_keyboard(which: str) -> InlineKeyboardMarkup:
-    if which not in ['start', 'end']:
-        raise Exception('Invalid date type, should be start or end!')
+    if which not in ["start", "end"]:
+        raise Exception("Invalid date type, should be start or end!")
 
     rough_controls = [
-        InlineKeyboardButton(
-            '-1 d', callback_data=f'raffle:date:{which}:update:-24'),
-        InlineKeyboardButton(
-            '-12 h', callback_data=f'raffle:date:{which}:update:-12'),
-        InlineKeyboardButton(
-            '-6 h', callback_data=f'raffle:date:{which}:update:-6'),
-        InlineKeyboardButton('+6 h',
-                             callback_data=f'raffle:date:{which}:update:+6'),
-        InlineKeyboardButton('+12 h',
-                             callback_data=f'raffle:date:{which}:update:+12'),
-        InlineKeyboardButton('+1 d',
-                             callback_data=f'raffle:date:{which}:update:+24'),
+        InlineKeyboardButton("-1 d", callback_data=f"raffle:date:{which}:update:-24"),
+        InlineKeyboardButton("-12 h", callback_data=f"raffle:date:{which}:update:-12"),
+        InlineKeyboardButton("-6 h", callback_data=f"raffle:date:{which}:update:-6"),
+        InlineKeyboardButton("+6 h", callback_data=f"raffle:date:{which}:update:+6"),
+        InlineKeyboardButton("+12 h", callback_data=f"raffle:date:{which}:update:+12"),
+        InlineKeyboardButton("+1 d", callback_data=f"raffle:date:{which}:update:+24"),
     ]
 
     smooth_controls = [
+        InlineKeyboardButton("-1 h", callback_data=f"raffle:date:{which}:update:-1"),
+        InlineKeyboardButton("-30 m", callback_data=f"raffle:date:{which}:update:-0.5"),
         InlineKeyboardButton(
-            '-1 h', callback_data=f'raffle:date:{which}:update:-1'),
-        InlineKeyboardButton('-30 m',
-                             callback_data=f'raffle:date:{which}:update:-0.5'),
+            "-15 m", callback_data=f"raffle:date:{which}:update:-0.25"
+        ),
         InlineKeyboardButton(
-            '-15 m', callback_data=f'raffle:date:{which}:update:-0.25'),
-        InlineKeyboardButton('+15 m',
-                             callback_data=f'raffle:date:{which}:update:+0.25'),
-        InlineKeyboardButton('+30 m',
-                             callback_data=f'raffle:date:{which}:update:+0.5'),
-        InlineKeyboardButton('+1 h',
-                             callback_data=f'raffle:date:{which}:update:+1'),
+            "+15 m", callback_data=f"raffle:date:{which}:update:+0.25"
+        ),
+        InlineKeyboardButton("+30 m", callback_data=f"raffle:date:{which}:update:+0.5"),
+        InlineKeyboardButton("+1 h", callback_data=f"raffle:date:{which}:update:+1"),
     ]
 
     keyboard = [
         rough_controls,
         smooth_controls,
-        [InlineKeyboardButton(STRINGS['confirm_button'],
-                              callback_data=f'raffle:date:{which}:confirmed')],
-        [InlineKeyboardButton(
-            STRINGS['cancel_button'], callback_data='raffle:cancel')]
+        [
+            InlineKeyboardButton(
+                STRINGS["confirm_button"],
+                callback_data=f"raffle:date:{which}:confirmed",
+            )
+        ],
+        [InlineKeyboardButton(STRINGS["cancel_button"], callback_data="raffle:cancel")],
     ]
 
     return InlineKeyboardMarkup(keyboard)
@@ -110,20 +123,18 @@ def date_keyboard(which: str) -> InlineKeyboardMarkup:
 
 def fee_keyboard() -> InlineKeyboardMarkup:
     keyboard = [
+        [
+            InlineKeyboardButton("-1", callback_data="raffle:fee:update:-100"),
+            InlineKeyboardButton("-0.5", callback_data="raffle:fee:update:-50"),
+            InlineKeyboardButton("+0.5", callback_data="raffle:fee:update:+50"),
+            InlineKeyboardButton("+1", callback_data="raffle:fee:update:+100"),
+        ],
         [
             InlineKeyboardButton(
-                '-1', callback_data='raffle:fee:update:-100'),
-            InlineKeyboardButton('-0.5',
-                                 callback_data='raffle:fee:update:-50'),
-            InlineKeyboardButton('+0.5',
-                                 callback_data='raffle:fee:update:+50'),
-            InlineKeyboardButton('+1',
-                                 callback_data='raffle:fee:update:+100'),
+                STRINGS["finish_raffle_button"], callback_data="raffle:fee:confirmed"
+            )
         ],
-        [InlineKeyboardButton(STRINGS['finish_raffle_button'],
-                              callback_data='raffle:fee:confirmed')],
-        [InlineKeyboardButton(
-            STRINGS['cancel_button'], callback_data='raffle:cancel')],
+        [InlineKeyboardButton(STRINGS["cancel_button"], callback_data="raffle:cancel")],
     ]
 
     return InlineKeyboardMarkup(keyboard)
@@ -137,36 +148,42 @@ def fee_keyboard() -> InlineKeyboardMarkup:
 async def setup_raffle(update: Update, context: CallbackContext) -> Union[str, int]:
     query = update.callback_query
 
-    if query.data == 'raffle:cancel':
+    if query.data == "raffle:cancel":
         return await cancel_convo(update, context)
 
-    if (query.data.startswith('raffle:chat_selected') and
-            len(query.data.split(':')) == 4 and
-            is_int(query.data.split(':')[2])):
-        args = query.data.split(':')
+    if (
+        query.data.startswith("raffle:chat_selected")
+        and len(query.data.split(":")) == 4
+        and is_int(query.data.split(":")[2])
+    ):
+        args = query.data.split(":")
 
         chat_id = int(args[2])
         chat_title = args[3]
 
         # store selected chat in user_data
-        context.user_data['raffle_chat_id'] = chat_id
-        context.user_data['raffle_chat_title'] = chat_title
+        context.user_data["raffle_chat_id"] = chat_id
+        context.user_data["raffle_chat_title"] = chat_title
 
         try:
             get_raffle(chat_id)
 
-            msg = (STRINGS['raffle_setup_base'] + STRINGS['raffle_setup_update_or_new']) % {
-                'chat_title': chat_title}
+            msg = (
+                STRINGS["raffle_setup_base"] + STRINGS["raffle_setup_update_or_new"]
+            ) % {"chat_title": chat_title}
 
-            await query.message.edit_text(msg, reply_markup=raffle_keyboard(has_existing=True))
+            await query.message.edit_text(
+                msg, reply_markup=raffle_keyboard(has_existing=True)
+            )
 
         except NoRaffleError:
-            msg = (STRINGS['raffle_setup_base'] + STRINGS['raffle_setup_new']) % {
-                'chat_title': chat_title}
+            msg = (STRINGS["raffle_setup_base"] + STRINGS["raffle_setup_new"]) % {
+                "chat_title": chat_title
+            }
 
             await query.message.edit_text(msg, reply_markup=raffle_keyboard())
 
-        return 'raffle_setup_state:update_or_new'
+        return "raffle_setup_state:update_or_new"
 
     # If nothing matches, return error
     return await convo_error(update, context)
@@ -175,31 +192,34 @@ async def setup_raffle(update: Update, context: CallbackContext) -> Union[str, i
 async def setup_start_date(update: Update, context: CallbackContext) -> Optional[str]:
     query = update.callback_query
 
-    if query.data == 'raffle:setup:new':
-        context.user_data['raffle_start_date'] = get_cur_time_hel().floor(
-            freq="15T")
-
-    if (query.data.startswith('raffle:date:start:update') and
-            len(query.data.split(':')) == 5 and
-            is_float(query.data.split(':')[4])):
+    if query.data == "raffle:setup:new":
+        context.user_data["raffle_start_date"] = get_cur_time_hel().floor(freq="15T")
 
-        diff = float(query.data.split(':')[4])
-        old_date = context.user_data['raffle_start_date']
-        new_date = old_date + pd.Timedelta(diff, unit='h')
+    if (
+        query.data.startswith("raffle:date:start:update")
+        and len(query.data.split(":")) == 5
+        and is_float(query.data.split(":")[4])
+    ):
+        diff = float(query.data.split(":")[4])
+        old_date = context.user_data["raffle_start_date"]
+        new_date = old_date + pd.Timedelta(diff, unit="h")
 
-        context.user_data['raffle_start_date'] = new_date
+        context.user_data["raffle_start_date"] = new_date
 
-    if (query.data == 'raffle:setup:new' or
-            query.data.startswith('raffle:date:start:update')):
-        chat_title = context.user_data['raffle_chat_title']
-        start_date = context.user_data['raffle_start_date']
+    if query.data == "raffle:setup:new" or query.data.startswith(
+        "raffle:date:start:update"
+    ):
+        chat_title = context.user_data["raffle_chat_title"]
+        start_date = context.user_data["raffle_start_date"]
 
-        msg = (STRINGS['raffle_setup_base'] + STRINGS['raffle_setup_start_date']) % {
-            'chat_title': chat_title, 'start_date': start_date}
+        msg = (STRINGS["raffle_setup_base"] + STRINGS["raffle_setup_start_date"]) % {
+            "chat_title": chat_title,
+            "start_date": start_date,
+        }
 
-        await query.message.edit_text(msg, reply_markup=date_keyboard('start'))
+        await query.message.edit_text(msg, reply_markup=date_keyboard("start"))
 
-        return 'raffle_setup_state:start_date'
+        return "raffle_setup_state:start_date"
 
     return None
 
@@ -207,40 +227,48 @@ async def setup_start_date(update: Update, context: CallbackContext) -> Optional
 async def setup_end_date(update: Update, context: CallbackContext) -> Optional[str]:
     query = update.callback_query
 
-    if query.data == 'raffle:date:start:confirmed':
-        context.user_data['raffle_end_date'] = context.user_data['raffle_start_date']
-
-    if (query.data.startswith('raffle:date:end:update') and
-            len(query.data.split(':')) == 5 and
-            is_float(query.data.split(':')[4])):
-
-        diff = float(query.data.split(':')[4])
-        old_date = context.user_data['raffle_end_date']
-        new_date = old_date + pd.Timedelta(diff, unit='h')
-
-        context.user_data['raffle_end_date'] = new_date
-
-    if (query.data == 'raffle:date:start:confirmed' or
-            query.data.startswith('raffle:date:end:update')):
-        chat_title = context.user_data['raffle_chat_title']
-        start_date = context.user_data['raffle_start_date']
-        end_date = context.user_data['raffle_end_date']
-
-        msg = (STRINGS['raffle_setup_base'] + STRINGS['raffle_setup_start_date'] +
-               STRINGS['raffle_setup_end_date'])
+    if query.data == "raffle:date:start:confirmed":
+        context.user_data["raffle_end_date"] = context.user_data["raffle_start_date"]
+
+    if (
+        query.data.startswith("raffle:date:end:update")
+        and len(query.data.split(":")) == 5
+        and is_float(query.data.split(":")[4])
+    ):
+        diff = float(query.data.split(":")[4])
+        old_date = context.user_data["raffle_end_date"]
+        new_date = old_date + pd.Timedelta(diff, unit="h")
+
+        context.user_data["raffle_end_date"] = new_date
+
+    if query.data == "raffle:date:start:confirmed" or query.data.startswith(
+        "raffle:date:end:update"
+    ):
+        chat_title = context.user_data["raffle_chat_title"]
+        start_date = context.user_data["raffle_start_date"]
+        end_date = context.user_data["raffle_end_date"]
+
+        msg = (
+            STRINGS["raffle_setup_base"]
+            + STRINGS["raffle_setup_start_date"]
+            + STRINGS["raffle_setup_end_date"]
+        )
 
         if end_date < start_date:
-            context.user_data['raffle_end_date'] = start_date
+            context.user_data["raffle_end_date"] = start_date
             end_date = start_date
-            msg += STRINGS['end_date_before_start']
+            msg += STRINGS["end_date_before_start"]
 
-        msg = msg % {'chat_title': chat_title,
-                     'start_date': start_date, 'end_date': end_date}
+        msg = msg % {
+            "chat_title": chat_title,
+            "start_date": start_date,
+            "end_date": end_date,
+        }
 
         if query.message.text != msg:
-            await query.message.edit_text(msg, reply_markup=date_keyboard('end'))
+            await query.message.edit_text(msg, reply_markup=date_keyboard("end"))
 
-        return 'raffle_setup_state:end_date'
+        return "raffle_setup_state:end_date"
 
     return None
 
@@ -248,39 +276,50 @@ async def setup_end_date(update: Update, context: CallbackContext) -> Optional[s
 async def setup_fee(update: Update, context: CallbackContext) -> Optional[str]:
     query = update.callback_query
 
-    if query.data == 'raffle:date:end:confirmed':
-        context.user_data['raffle_fee'] = 100
+    if query.data == "raffle:date:end:confirmed":
+        context.user_data["raffle_fee"] = 100
 
-    if (query.data.startswith('raffle:fee:update') and
-            len(query.data.split(':')) == 4 and
-            is_int(query.data.split(':')[3])):
-
-        diff = int(query.data.split(':')[3])
-        old_fee = context.user_data['raffle_fee']
+    if (
+        query.data.startswith("raffle:fee:update")
+        and len(query.data.split(":")) == 4
+        and is_int(query.data.split(":")[3])
+    ):
+        diff = int(query.data.split(":")[3])
+        old_fee = context.user_data["raffle_fee"]
         new_fee = old_fee + diff
 
-        context.user_data['raffle_fee'] = new_fee
+        context.user_data["raffle_fee"] = new_fee
 
-    if (query.data == 'raffle:date:end:confirmed' or query.data.startswith('raffle:fee:update')):
-        chat_title = context.user_data['raffle_chat_title']
-        start_date = context.user_data['raffle_start_date']
-        end_date = context.user_data['raffle_end_date']
-        fee = context.user_data['raffle_fee']
+    if query.data == "raffle:date:end:confirmed" or query.data.startswith(
+        "raffle:fee:update"
+    ):
+        chat_title = context.user_data["raffle_chat_title"]
+        start_date = context.user_data["raffle_start_date"]
+        end_date = context.user_data["raffle_end_date"]
+        fee = context.user_data["raffle_fee"]
 
-        msg = (STRINGS['raffle_setup_base'] + STRINGS['raffle_setup_start_date'] +
-               STRINGS['raffle_setup_end_date'] + STRINGS['raffle_setup_fee'])
+        msg = (
+            STRINGS["raffle_setup_base"]
+            + STRINGS["raffle_setup_start_date"]
+            + STRINGS["raffle_setup_end_date"]
+            + STRINGS["raffle_setup_fee"]
+        )
 
         if fee < 0:
-            context.user_data['raffle_fee'] = 0
-            msg += STRINGS['negative_fee']
+            context.user_data["raffle_fee"] = 0
+            msg += STRINGS["negative_fee"]
 
-        msg = msg % {'chat_title': chat_title, 'start_date': start_date,
-                     'end_date': end_date, 'fee': int_price_to_str(fee)}
+        msg = msg % {
+            "chat_title": chat_title,
+            "start_date": start_date,
+            "end_date": end_date,
+            "fee": int_price_to_str(fee),
+        }
 
         if query.message.text != msg:
             await query.message.edit_text(msg, reply_markup=fee_keyboard())
 
-        return 'raffle_setup_state:fee'
+        return "raffle_setup_state:fee"
 
     return None
 
@@ -289,48 +328,60 @@ async def finish_setup(update: Update, context: CallbackContext) -> Optional[int
     query = update.callback_query
     dm_id = update.effective_chat.id
 
-    if query.data == 'raffle:setup:old':
-        chat_title = context.user_data['raffle_chat_title']
-        chat_id = context.user_data['raffle_chat_id']
+    if query.data == "raffle:setup:old":
+        chat_title = context.user_data["raffle_chat_title"]
+        chat_id = context.user_data["raffle_chat_id"]
         dm_id = update.effective_chat.id
 
         start_date, end_date, entry_fee, _ = get_raffle(chat_id)
-        excel_path = f'data/{dm_id}/data.xlsx'
+        excel_path = f"data/{dm_id}/data.xlsx"
         df = read_excel_to_df(excel_path, start_date, end_date)
         save_raffle(chat_id, start_date, end_date, entry_fee, df)
 
-        await query.message.edit_text(STRINGS['updated_raffle'] % {'chat_title': chat_title})
-        await context.bot.send_message(chat_id,
-                                       STRINGS['raffle_updated_chat']
-                                       % {'username': update.effective_user.username})
+        await query.message.edit_text(
+            STRINGS["updated_raffle"] % {"chat_title": chat_title}
+        )
+        await context.bot.send_message(
+            chat_id,
+            STRINGS["raffle_updated_chat"]
+            % {"username": update.effective_user.username},
+        )
         # perform cleanup
         context.user_data.clear()
         os.remove(excel_path)
 
         return ConversationHandler.END
 
-    if query.data == 'raffle:fee:confirmed':
-        chat_title = context.user_data['raffle_chat_title']
-        chat_id = context.user_data['raffle_chat_id']
-        start_date = context.user_data['raffle_start_date']
-        end_date = context.user_data['raffle_end_date']
-        fee = context.user_data['raffle_fee']
+    if query.data == "raffle:fee:confirmed":
+        chat_title = context.user_data["raffle_chat_title"]
+        chat_id = context.user_data["raffle_chat_id"]
+        start_date = context.user_data["raffle_start_date"]
+        end_date = context.user_data["raffle_end_date"]
+        fee = context.user_data["raffle_fee"]
 
-        excel_path = f'data/{dm_id}/data.xlsx'
+        excel_path = f"data/{dm_id}/data.xlsx"
         df = read_excel_to_df(excel_path, start_date, end_date)
         save_raffle(chat_id, start_date, end_date, fee, df)
 
-        msg = (STRINGS['raffle_setup_base'] + STRINGS['raffle_setup_start_date'] +
-               STRINGS['raffle_setup_end_date'] + STRINGS['raffle_setup_fee'] +
-               STRINGS['raffle_confirmation']) % {
-            'chat_title': chat_title,
-            'start_date': start_date,
-            'end_date': end_date,
-            'fee': int_price_to_str(fee)}
+        msg = (
+            STRINGS["raffle_setup_base"]
+            + STRINGS["raffle_setup_start_date"]
+            + STRINGS["raffle_setup_end_date"]
+            + STRINGS["raffle_setup_fee"]
+            + STRINGS["raffle_confirmation"]
+        ) % {
+            "chat_title": chat_title,
+            "start_date": start_date,
+            "end_date": end_date,
+            "fee": int_price_to_str(fee),
+        }
 
         await query.message.edit_text(msg, reply_markup=None)
-        await context.bot.send_message(chat_id, STRINGS['raffle_created_chat']
-                                       % {'username': update.effective_user.username})
+        await context.bot.send_message(
+            chat_id,
+            STRINGS["raffle_created_chat"]
+            % {"username": update.effective_user.username},
+        )
 
         # perform cleanup
         context.user_data.clear()
@@ -340,47 +391,35 @@ async def finish_setup(update: Update, context: CallbackContext) -> Optional[int
 
     return None
 
+
 raffle_setup_handler = ConversationHandler(
-    entry_points=[CallbackQueryHandler(setup_raffle, pattern='^raffle:.*$')],
+    entry_points=[CallbackQueryHandler(setup_raffle, pattern="^raffle:.*$")],
     states={
-        'raffle_setup_state:update_or_new': [
-            CallbackQueryHandler(
-                setup_start_date,
-                pattern='^raffle:setup:new$'),
-            CallbackQueryHandler(
-                finish_setup,
-                pattern='^raffle:setup:old$')],
-        'raffle_setup_state:start_date': [
-            CallbackQueryHandler(
-                setup_start_date,
-                pattern='^raffle:date:start:update.*$'),
-            CallbackQueryHandler(
-                setup_end_date,
-                pattern='^raffle:date:start:confirmed$')
+        "raffle_setup_state:update_or_new": [
+            CallbackQueryHandler(setup_start_date, pattern="^raffle:setup:new$"),
+            CallbackQueryHandler(finish_setup, pattern="^raffle:setup:old$"),
         ],
-        'raffle_setup_state:end_date': [
+        "raffle_setup_state:start_date": [
             CallbackQueryHandler(
-                setup_end_date,
-                pattern='^raffle:date:end:update.*$'),
+                setup_start_date, pattern="^raffle:date:start:update.*$"
+            ),
             CallbackQueryHandler(
-                setup_fee,
-                pattern='^raffle:date:end:confirmed$')
+                setup_end_date, pattern="^raffle:date:start:confirmed$"
+            ),
         ],
-        'raffle_setup_state:fee': [
-            CallbackQueryHandler(
-                setup_fee,
-                pattern='^raffle:fee:update.*$'),
-            CallbackQueryHandler(
-                finish_setup,
-                pattern='^raffle:fee:confirmed$')
+        "raffle_setup_state:end_date": [
+            CallbackQueryHandler(setup_end_date, pattern="^raffle:date:end:update.*$"),
+            CallbackQueryHandler(setup_fee, pattern="^raffle:date:end:confirmed$"),
         ],
-        ConversationHandler.TIMEOUT: [CallbackQueryHandler(convo_timeout)]
+        "raffle_setup_state:fee": [
+            CallbackQueryHandler(setup_fee, pattern="^raffle:fee:update.*$"),
+            CallbackQueryHandler(finish_setup, pattern="^raffle:fee:confirmed$"),
+        ],
+        ConversationHandler.TIMEOUT: [CallbackQueryHandler(convo_timeout)],
     },
     fallbacks=[CallbackQueryHandler(setup_raffle)],
     conversation_timeout=120,
-    name='raffle_setup',
+    name="raffle_setup",
     persistent=True,
-    per_message=True
-
-
+    per_message=True,
 )
diff --git a/kipubot/handlers/_start_handler.py b/kipubot/handlers/_start_handler.py
index d37d0c9..fcb1c80 100644
--- a/kipubot/handlers/_start_handler.py
+++ b/kipubot/handlers/_start_handler.py
@@ -4,8 +4,8 @@
 
 
 async def start(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
-    with open('kipubot/resources/info.png', 'rb') as f:
-        await update.message.reply_photo(
-            caption=STRINGS['start_prompt'], photo=f)
+    with open("kipubot/resources/info.png", "rb") as f:
+        await update.message.reply_photo(caption=STRINGS["start_prompt"], photo=f)
 
-start_handler = CommandHandler('start', start)
+
+start_handler = CommandHandler("start", start)
diff --git a/kipubot/handlers/_winner_handler.py b/kipubot/handlers/_winner_handler.py
index cc98437..a292945 100644
--- a/kipubot/handlers/_winner_handler.py
+++ b/kipubot/handlers/_winner_handler.py
@@ -4,10 +4,15 @@
 import telegram.ext.filters as Filters
 import psycopg.errors as PSErrors
 from kipubot.constants import STRINGS
-from kipubot.db import (admin_cycle_winners, cycle_winners,
-                        get_registered_member_ids,
-                        get_admin_ids, get_prev_winner_ids,
-                        get_winner_id, replace_cur_winner)
+from kipubot.db import (
+    admin_cycle_winners,
+    cycle_winners,
+    get_registered_member_ids,
+    get_admin_ids,
+    get_prev_winner_ids,
+    get_winner_id,
+    replace_cur_winner,
+)
 from kipubot.utils import get_chat_member_opt
 
 
@@ -21,7 +26,7 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
     user_id = update.effective_user.id
 
     if len(ent) != 2 or ent[1].type != MessageEntityType.MENTION:
-        await update.message.reply_text(STRINGS['invalid_winner_usage'])
+        await update.message.reply_text(STRINGS["invalid_winner_usage"])
         return
 
     username = update.message.text.split(" ")[1][1:]
@@ -34,25 +39,28 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
         is_prev_winner = prev_winner_ids and user_id == prev_winner_ids[-1]
 
         if not is_admin and not is_cur_winner and not is_prev_winner:
-            await update.message.reply_text(STRINGS['forbidden_command'])
+            await update.message.reply_text(STRINGS["forbidden_command"])
             return
 
         registered_member_ids = get_registered_member_ids(chat_id)
-        registered_members = [await get_chat_member_opt(update.effective_chat, id)
-                              for id in registered_member_ids]
+        registered_members = [
+            await get_chat_member_opt(update.effective_chat, id)
+            for id in registered_member_ids
+        ]
         # drop None values
         registered_members = [m for m in registered_members if m]
         supposed_winner = [
-            member for member in registered_members if member.user.username == username]
+            member for member in registered_members if member.user.username == username
+        ]
 
         if not supposed_winner:
-            await update.message.reply_text(STRINGS['user_not_found'])
+            await update.message.reply_text(STRINGS["user_not_found"])
             return
 
         winner_id = supposed_winner[0].user.id
 
         if winner_id == user_id and not is_admin:
-            await update.message.reply_text(STRINGS['already_winner'])
+            await update.message.reply_text(STRINGS["already_winner"])
             return
 
         # admin: moves current to prev and makes new current
@@ -66,10 +74,14 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
             cycle_winners(user_id, winner_id, chat_id)
     except PSErrors.Error as e:
         print(e)
-        await update.message.reply_text(STRINGS['user_not_found'])
+        await update.message.reply_text(STRINGS["user_not_found"])
         return
 
-    await update.message.reply_text(STRINGS['winner_confirmation'] % {'username': username})
+    await update.message.reply_text(
+        STRINGS["winner_confirmation"] % {"username": username}
+    )
+
 
 winner_handler = CommandHandler(
-    ['voittaja', 'winner'], winner, ~Filters.ChatType.PRIVATE)
+    ["voittaja", "winner"], winner, ~Filters.ChatType.PRIVATE
+)
diff --git a/kipubot/utils.py b/kipubot/utils.py
index 4fb22fe..7ceb2af 100644
--- a/kipubot/utils.py
+++ b/kipubot/utils.py
@@ -43,16 +43,15 @@ def is_float(x: str) -> bool:
 def int_price_to_str(num: int) -> str:
     num = num / 100.0
 
-    str_num: str = format(num, '.2f') if num >= 0 else \
-        '-' + format(-num, '.2f')
+    str_num: str = format(num, ".2f") if num >= 0 else "-" + format(-num, ".2f")
 
-    euros, cents = str_num.split('.')
+    euros, cents = str_num.split(".")
 
-    if cents == '00':
+    if cents == "00":
         return euros
 
-    if cents[1] == '0':
-        return euros + '.' + cents[0]
+    if cents[1] == "0":
+        return euros + "." + cents[0]
 
     return str_num
 
@@ -61,7 +60,7 @@ async def get_chat_member_opt(chat: Chat, member_id: int) -> Optional[ChatMember
     try:
         return await chat.get_member(member_id)
     except BadRequest as e:
-        if e.message == 'User not found':
+        if e.message == "User not found":
             return None
         raise e
 
@@ -70,7 +69,7 @@ def preband(x, xd, yd, p, func):
     conf = 0.95
     alpha = 1.0 - conf
     quantile = stats.t.ppf(1.0 - alpha / 2.0, xd.size - len(p))
-    stdev = np.sqrt(1. / (xd.size - len(p)) * np.sum((yd - func(xd, *p))**2))
+    stdev = np.sqrt(1.0 / (xd.size - len(p)) * np.sum((yd - func(xd, *p)) ** 2))
     # auxiliary definitions
     sx = (x - xd.mean()) ** 2
     sxd = np.sum((xd - xd.mean()) ** 2)
@@ -83,7 +82,9 @@ def preband(x, xd, yd, p, func):
     return lpb, upb
 
 
-def fit_timedata(x_series: "pd.Series[np.int64]", y_series: "pd.Series[np.int64]"):  # pylint: disable=too-many-locals
+def fit_timedata(
+    x_series: "pd.Series[np.int64]", y_series: "pd.Series[np.int64]"
+):  # pylint: disable=too-many-locals
     # ignore the end date in curve fitting
     x = x_series.values[:-1]
     y = y_series.values[:-1]
@@ -102,48 +103,62 @@ def f(x, slope, intercept):
     now = get_cur_time_hel().value
     end = x_series[-2] if now >= x_series[-1] else x_series[-1]
 
-    px = np.linspace(x_series[0], end,
-                     y_series.size - 1, dtype=np.int64)
-    py = a*px+b
+    px = np.linspace(x_series[0], end, y_series.size - 1, dtype=np.int64)
+    py = a * px + b
     nom = unp.nominal_values(py)
     std = unp.std_devs(py)
 
     lpb, upb = preband(px, x, y, popt, f)
 
     # convert back to dates
-    px = [pd.to_datetime(x, unit='ns') for x in px]
+    px = [pd.to_datetime(x, unit="ns") for x in px]
 
     return (px, nom, std, lpb, upb)
 
 
 def remove_emojis(text: str) -> str:
-    emojis = re.compile(pattern="["
-                        u"\U0001F600-\U0001F64F"  # emoticons
-                        u"\U0001F300-\U0001F5FF"  # symbols & pictographs
-                        u"\U0001F680-\U0001F6FF"  # transport & map symbols
-                        u"\U0001F1E0-\U0001F1FF"  # flags (iOS)
-                        "]+", flags=re.UNICODE)
-    return emojis.sub(r' ', text)
+    emojis = re.compile(
+        pattern="["
+        "\U0001F600-\U0001F64F"  # emoticons
+        "\U0001F300-\U0001F5FF"  # symbols & pictographs
+        "\U0001F680-\U0001F6FF"  # transport & map symbols
+        "\U0001F1E0-\U0001F1FF"  # flags (iOS)
+        "]+",
+        flags=re.UNICODE,
+    )
+    return emojis.sub(r" ", text)
 
 
 def validate_excel(excel_path: str) -> bool:
-    df = pd.read_excel(excel_path, usecols='A,B,D', header=None, names=[
-        'date', 'name', 'amount'], parse_dates=True)
-    return (df.size > 0 and
-            df['date'].dtype == 'datetime64[ns]' and
-            df['name'].dtype == 'object' and
-            df['amount'].dtype in ('int64', 'float64'))
-
-
-def read_excel_to_df(excel_path: str,
-                     start_date: pd.Timestamp,
-                     end_date: pd.Timestamp) -> pd.DataFrame:
-    df = pd.read_excel(excel_path, usecols='A,B,D', header=None, names=[
-        'date', 'name', 'amount'], parse_dates=True)
-    df.drop(df[df['amount'] <= 0].index, inplace=True)
-    df.drop(df[df['date'] > end_date].index, inplace=True)
-    df.drop(df[df['date'] < start_date].index, inplace=True)
-    df['amount'] = df['amount'] * 100
+    df = pd.read_excel(
+        excel_path,
+        usecols="A,B,D",
+        header=None,
+        names=["date", "name", "amount"],
+        parse_dates=True,
+    )
+    return (
+        df.size > 0
+        and df["date"].dtype == "datetime64[ns]"
+        and df["name"].dtype == "object"
+        and df["amount"].dtype in ("int64", "float64")
+    )
+
+
+def read_excel_to_df(
+    excel_path: str, start_date: pd.Timestamp, end_date: pd.Timestamp
+) -> pd.DataFrame:
+    df = pd.read_excel(
+        excel_path,
+        usecols="A,B,D",
+        header=None,
+        names=["date", "name", "amount"],
+        parse_dates=True,
+    )
+    df.drop(df[df["amount"] <= 0].index, inplace=True)
+    df.drop(df[df["date"] > end_date].index, inplace=True)
+    df.drop(df[df["date"] < start_date].index, inplace=True)
+    df["amount"] = df["amount"] * 100
     return df
 
 
@@ -151,14 +166,13 @@ def get_raffle(chat_id: int, include_df: bool = False) -> RaffleData:
     query_result = db.get_raffle_data(chat_id)
 
     if query_result is None:
-        raise NoRaffleError(f'No raffle found for chat {chat_id}')
+        raise NoRaffleError(f"No raffle found for chat {chat_id}")
 
     _, start_date, end_date, entry_fee, dates, entries, amounts = query_result
 
     if include_df:
-        df = pd.DataFrame(
-            data={'date': dates, 'name': entries, 'amount': amounts})
-        df.set_index('date', inplace=True)
+        df = pd.DataFrame(data={"date": dates, "name": entries, "amount": amounts})
+        df.set_index("date", inplace=True)
         return RaffleData(start_date, end_date, entry_fee, df)
 
     return RaffleData(start_date, end_date, entry_fee, None)
@@ -167,29 +181,31 @@ def get_raffle(chat_id: int, include_df: bool = False) -> RaffleData:
 def get_cur_time_hel() -> pd.Timestamp:
     # take current time in helsinki and convert it to naive time,
     # as mobilepay times are naive (naive = no timezone specified).
-    helsinki_tz = pytz.timezone('Europe/Helsinki')
+    helsinki_tz = pytz.timezone("Europe/Helsinki")
     cur_time_hel = pd.Timestamp.utcnow().astimezone(helsinki_tz).replace(tzinfo=None)
 
     return cur_time_hel
 
 
-def save_raffle(chat_id: int,
-                start_date: pd.Timestamp,
-                end_date: pd.Timestamp,
-                entry_fee: int,
-                df: pd.DataFrame) -> None:
+def save_raffle(
+    chat_id: int,
+    start_date: pd.Timestamp,
+    end_date: pd.Timestamp,
+    entry_fee: int,
+    df: pd.DataFrame,
+) -> None:
     db.save_raffle_data(chat_id, start_date, end_date, entry_fee, df)
 
 
 def parse_df_essentials(raffle_data: RaffleData) -> RaffleData:
     start_date, end_date, fee, df = raffle_data
 
-    df.at[start_date, 'amount'] = 0
+    df.at[start_date, "amount"] = 0
 
-    df['datenum'] = pd.to_numeric(df.index.values)
-    df = df.sort_values('datenum')
-    df['amount'] = df['amount'].cumsum().astype(int)
-    df['unique'] = (~df['name'].duplicated()).cumsum() - 1
+    df["datenum"] = pd.to_numeric(df.index.values)
+    df = df.sort_values("datenum")
+    df["amount"] = df["amount"].cumsum().astype(int)
+    df["unique"] = (~df["name"].duplicated()).cumsum() - 1
 
     return RaffleData(start_date, end_date, fee, df)
 
@@ -197,10 +213,18 @@ def parse_df_essentials(raffle_data: RaffleData) -> RaffleData:
 def parse_expected(raffle_data: RaffleData) -> RaffleData:
     start_date, end_date, entry_fee, df = parse_df_essentials(raffle_data)
 
-    df['win_odds'] = 1.0 / df['unique']
-    df['next_expected'] = ((- entry_fee * (1 - df['win_odds'])
-                           + (df['amount'] - entry_fee) * df['win_odds'])
-                           ).fillna(0).round().astype(int)
+    df["win_odds"] = 1.0 / df["unique"]
+    df["next_expected"] = (
+        (
+            (
+                -entry_fee * (1 - df["win_odds"])
+                + (df["amount"] - entry_fee) * df["win_odds"]
+            )
+        )
+        .fillna(0)
+        .round()
+        .astype(int)
+    )
 
     return RaffleData(start_date, end_date, entry_fee, df)
 
@@ -208,11 +232,10 @@ def parse_expected(raffle_data: RaffleData) -> RaffleData:
 def parse_graph(raffle_data: RaffleData) -> RaffleData:
     df = raffle_data.df
 
-    df.at[get_cur_time_hel(), 'amount'] = 0
-    df.at[raffle_data.end_date, 'amount'] = 0
+    df.at[get_cur_time_hel(), "amount"] = 0
+    df.at[raffle_data.end_date, "amount"] = 0
 
-    parsed_raffle_data = parse_df_essentials(
-        raffle_data._replace(df=df))
+    parsed_raffle_data = parse_df_essentials(raffle_data._replace(df=df))
 
     return parsed_raffle_data
 
@@ -224,14 +247,13 @@ def configure_and_save_plot(out_img_path: str) -> None:
     ax.legend()
 
     # format axis
-    ax.xaxis.set_major_formatter(mdates.DateFormatter('%d.%m. %H:%M'))
+    ax.xaxis.set_major_formatter(mdates.DateFormatter("%d.%m. %H:%M"))
     ax.yaxis.set_major_formatter(lambda x, _: int_price_to_str(x))
 
     # set grid
     ax.xaxis.set_minor_locator(AutoMinorLocator(2))
     ax.yaxis.set_minor_locator(AutoMinorLocator(2))
-    plt.grid(visible=True, which='major',
-             axis='both', linestyle='--', linewidth=0.5)
+    plt.grid(visible=True, which="major", axis="both", linestyle="--", linewidth=0.5)
 
     if not os.path.exists(os.path.dirname(out_img_path)):
         os.makedirs(os.path.dirname(out_img_path))
@@ -240,50 +262,47 @@ def configure_and_save_plot(out_img_path: str) -> None:
     plt.clf()
 
 
-def generate_graph(out_img_path: str,
-                   chat_id: int,
-                   chat_title: str) -> None:
-
+def generate_graph(out_img_path: str, chat_id: int, chat_title: str) -> None:
     # -- get raffle data --
     raffle_data = get_raffle(chat_id, include_df=True)
 
     # -- parse and fit data --
     start_date, end_date, _, df = parse_graph(raffle_data)
-    px, nom, std, lpb, upb = fit_timedata(df['datenum'], df['amount'])
+    px, nom, std, lpb, upb = fit_timedata(df["datenum"], df["amount"])
 
     # -- plot --
     # clear previous plot in case of leftovers
     plt.clf()
     ax = plt.gca()
     # plot data
-    df['amount'][:-1].plot(ax=ax, marker='o', style='r', label='Pool')
+    df["amount"][:-1].plot(ax=ax, marker="o", style="r", label="Pool")
     # plot regression
-    ax.plot(px, nom, '-', color='black', label='y=ax+b')
+    ax.plot(px, nom, "-", color="black", label="y=ax+b")
     # uncertainty lines (95% conf)
-    ax.plot(px, nom-1.96*std, c='orange', label='95% confidence region')
-    ax.plot(px, nom+1.96*std, c='orange')
+    ax.plot(px, nom - 1.96 * std, c="orange", label="95% confidence region")
+    ax.plot(px, nom + 1.96 * std, c="orange")
     # prediction band (95% conf)
-    ax.plot(px, lpb, 'k--', label='95% prediction band')
-    ax.plot(px, upb, 'k--')
+    ax.plot(px, lpb, "k--", label="95% prediction band")
+    ax.plot(px, upb, "k--")
 
     # -- style graph --
-    pred_max_pool = (nom+1.96*std)[-1]
-    pool_total = df['amount'].max()
+    pred_max_pool = (nom + 1.96 * std)[-1]
+    pool_total = df["amount"].max()
     plt.ylim(0, max(pred_max_pool, pool_total))
     plt.xlim((pd.to_datetime(start_date), pd.to_datetime(end_date)))
 
-    plt.title(str(remove_emojis(chat_title).strip()) + "\n" +
-              f"Entries {df['unique'].max()} | Pool {int_price_to_str(pool_total)} €")
+    plt.title(
+        str(remove_emojis(chat_title).strip())
+        + "\n"
+        + f"Entries {df['unique'].max()} | Pool {int_price_to_str(pool_total)} €"
+    )
     plt.xlabel(None)
-    plt.ylabel('Pool (€)')
+    plt.ylabel("Pool (€)")
 
     configure_and_save_plot(out_img_path)
 
 
-def generate_expected(out_img_path: str,
-                      chat_id: int,
-                      chat_title: str) -> None:
-
+def generate_expected(out_img_path: str, chat_id: int, chat_title: str) -> None:
     # -- get raffle data --
     raffle_data = get_raffle(chat_id, include_df=True)
 
@@ -295,18 +314,21 @@ def generate_expected(out_img_path: str,
     plt.clf()
     ax = plt.gca()
 
-    df['next_expected'].plot(
-        ax=ax, marker='o', style='r', label='Expected Value')
+    df["next_expected"].plot(ax=ax, marker="o", style="r", label="Expected Value")
 
     # -- style graph --
-    plt.ylim(float(int_price_to_str((df['next_expected'].min() - 100) * 110)),
-             float(int_price_to_str((df['next_expected'].max() + 100) * 110)))
+    plt.ylim(
+        float(int_price_to_str((df["next_expected"].min() - 100) * 110)),
+        float(int_price_to_str((df["next_expected"].max() + 100) * 110)),
+    )
     plt.xlim((pd.to_datetime(start_date), pd.to_datetime(get_cur_time_hel())))
 
-    plt.title(str(remove_emojis(chat_title).strip()) +
-              f' | Fee {int_price_to_str(entry_fee)} €\n' +
-              f"Expected Value { int_price_to_str(df['next_expected'].iloc[-1])} €")
+    plt.title(
+        str(remove_emojis(chat_title).strip())
+        + f" | Fee {int_price_to_str(entry_fee)} €\n"
+        + f"Expected Value { int_price_to_str(df['next_expected'].iloc[-1])} €"
+    )
     plt.xlabel(None)
-    plt.ylabel('Expected Value (€)')
+    plt.ylabel("Expected Value (€)")
 
     configure_and_save_plot(out_img_path)
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..b0acdf8
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,1466 @@
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+
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+category = "main"
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+files = [
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+    {file = "anyio-3.6.2.tar.gz", hash = "sha256:25ea0d673ae30af41a0c442f81cf3b38c7e79fdc7b60335a4c14e05eb0947421"},
+]
+
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+idna = ">=2.8"
+sniffio = ">=1.1"
+
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+doc = ["packaging", "sphinx-autodoc-typehints (>=1.2.0)", "sphinx-rtd-theme"]
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+trio = ["trio (>=0.16,<0.22)"]
+
+[[package]]
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+version = "23.1.0"
+description = "Classes Without Boilerplate"
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+[metadata]
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diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..917191a
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,43 @@
+[tool.poetry]
+name = "kipubot"
+version = "0.2.0"
+description = "Graphs for Friday bottle raffles."
+authors = [
+  "Mikael Siidorow ",
+  "Kalle Ahlstrom <71292737+kqlski@users.noreply.github.com>",
+]
+license = "GPL-3.0"
+readme = "README.md"
+
+
+[tool.poe.tasks]
+start = "poetry run python -m kipubot"
+dev = "watchfiles 'poetry run  poe start' kipubot"
+test = "poetry run pytest"
+test_hot = "watchfiles 'pytest' kipubot tests"
+lint = "poetry run ruff ."
+type = "poetry run pytype ."
+
+[tool.poetry.dependencies]
+python = ">=3.10,<3.11"
+pandas = "^2.0.0"
+matplotlib = "^3.7.1"
+scipy = "^1.10.1"
+python-dotenv = "^1.0.0"
+python-telegram-bot = "^20.2"
+psycopg = "^3.1.8"
+openpyxl = "^3.1.2"
+pytz = "^2023.3"
+uncertainties = "^3.1.7"
+
+[tool.poetry.group.dev.dependencies]
+watchfiles = "^0.19.0"
+ruff = "^0.0.261"
+pytype = "^2023.4.11"
+pytest = "^7.3.1"
+black = "^23.3.0"
+poethepoet = "^0.19.0"
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
diff --git a/test.Dockerfile b/test.Dockerfile
index ee58b6e..2bb0df4 100644
--- a/test.Dockerfile
+++ b/test.Dockerfile
@@ -1,20 +1,23 @@
 # syntax=docker/dockerfile:1
-FROM python:3.8 as base
+FROM python:3.10 as base
 
 # Setup ENV variables here (if needed in the future)
 
 
 FROM base as python-deps
 
-# Install pipenv
-RUN pip3 install pipenv
+# Install pipx and poetry
+RUN pip3 install --user pipx
+ENV PATH=/root/.local/bin:$PATH
+RUN pipx install poetry==1.4.2
+ENV PATH=/root/.local/pipx/venvs/poetry/bin:$PATH
 
 # Install python dependencies in /.venv
 WORKDIR /bot
-COPY Pipfile .
-COPY Pipfile.lock .
-RUN  pipenv install --dev
+COPY pyproject.toml .
+COPY poetry.lock .
+RUN poetry install
 
 COPY . .
 # Run the app
-CMD [ "pipenv", "run", "test_hot" ]
+CMD [ "poetry", "run", "poe", "test_hot" ]
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 302036f..c73b4cb 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -2,22 +2,61 @@
 
 import pytest
 from datetime import datetime
-from db import delete_chat, delete_raffle_data, save_chat_or_ignore, _init_db
+from kipubot.db import delete_chat, delete_raffle_data, save_chat_or_ignore, _init_db
 from kipubot import DATABASE_URL
 from pandas.testing import assert_frame_equal
-from kipubot.utils import get_raffle, int_price_to_str, remove_emojis, read_excel_to_df, save_raffle
+from kipubot.utils import (
+    get_raffle,
+    int_price_to_str,
+    remove_emojis,
+    read_excel_to_df,
+    save_raffle,
+)
 
 
 class TestUtils:
-
     def test_int_price_to_str(self):
-        test_cases = [-10000, -1001, -101, -100, -99, -50, -10, -1,
-                      0,
-                      1, 10, 50, 100, 101, 150, 1001, 10001, 100001]
+        test_cases = [
+            -10000,
+            -1001,
+            -101,
+            -100,
+            -99,
+            -50,
+            -10,
+            -1,
+            0,
+            1,
+            10,
+            50,
+            100,
+            101,
+            150,
+            1001,
+            10001,
+            100001,
+        ]
 
-        expected_results = ['-100', '-10.01', '-1.01', '-1', '-0.99', '-0.5', '-0.1', '-0.01',
-                            '0',
-                            '0.01', '0.1', '0.5', '1', '1.01', '1.5', '10.01', '100.01', '1000.01']
+        expected_results = [
+            "-100",
+            "-10.01",
+            "-1.01",
+            "-1",
+            "-0.99",
+            "-0.5",
+            "-0.1",
+            "-0.01",
+            "0",
+            "0.01",
+            "0.1",
+            "0.5",
+            "1",
+            "1.01",
+            "1.5",
+            "10.01",
+            "100.01",
+            "1000.01",
+        ]
 
         results = [int_price_to_str(price) for price in test_cases]
 
@@ -27,18 +66,26 @@ def test_int_price_to_str(self):
         #    assert int_price_to_str(case) == ex_res
 
     def test_remove_emojis(self):
-        assert remove_emojis('💩') == ' '
-        assert remove_emojis(
-            'text💩with💩emoji💩in💩the💩middle') == 'text with emoji in the middle'
-        assert remove_emojis(
-            '💩text with emoji at the start') == ' text with emoji at the start'
-        assert remove_emojis(
-            'text with emoji at the end💩') == 'text with emoji at the end '
-        assert remove_emojis(
-            '💩text with emoji💩at the start, middle and end💩') == ' text with emoji at the start, middle and end '
+        assert remove_emojis("💩") == " "
+        assert (
+            remove_emojis("text💩with💩emoji💩in💩the💩middle")
+            == "text with emoji in the middle"
+        )
+        assert (
+            remove_emojis("💩text with emoji at the start")
+            == " text with emoji at the start"
+        )
+        assert (
+            remove_emojis("text with emoji at the end💩")
+            == "text with emoji at the end "
+        )
+        assert (
+            remove_emojis("💩text with emoji💩at the start, middle and end💩")
+            == " text with emoji at the start, middle and end "
+        )
+
 
 class TestGraphSave:
-        
     @pytest.fixture(autouse=True)
     def create_chat(self):
         _init_db(DATABASE_URL)
@@ -46,7 +93,6 @@ def create_chat(self):
         yield 1
         delete_chat(1)
 
-
     def test_graph_save(self):
         file_path = "tests/example_data/example_1.xlsx"
         start_date = datetime.fromisoformat("2022-08-01 03:15:00")
@@ -56,10 +102,11 @@ def test_graph_save(self):
         save_raffle(1, start_date, end_date, entry_fee, df)
         raffle_from_db = get_raffle(1, True)
         delete_raffle_data(1)
-        assert (start_date == raffle_from_db.start_date)
-        assert (end_date == raffle_from_db.end_date)
-        assert (entry_fee == raffle_from_db.entry_fee)
+        assert start_date == raffle_from_db.start_date
+        assert end_date == raffle_from_db.end_date
+        assert entry_fee == raffle_from_db.entry_fee
 
-        # behavior that get_raffle returns without index and read returns with probably should be changed.
-        df.set_index('date',inplace=True)
-        assert_frame_equal(df,raffle_from_db.df)
+        # behavior that get_raffle returns without index and
+        # read returns with probably should be changed.
+        df.set_index("date", inplace=True)
+        assert_frame_equal(df, raffle_from_db.df)

From 3d92e39c8bb87c895466756043a7fb0f6f590b1e Mon Sep 17 00:00:00 2001
From: Mikael Siidorow 
Date: Mon, 17 Apr 2023 11:09:36 +0300
Subject: [PATCH 2/8] style: format with new ruff rules

---
 kipubot/__init__.py                       |   4 +-
 kipubot/bot.py                            |  16 +--
 kipubot/constants.py                      |  16 ++-
 kipubot/db.py                             |  37 +++----
 kipubot/handlers/__init__.py              |  12 +-
 kipubot/handlers/_bot_added_handler.py    |   9 +-
 kipubot/handlers/_error_handler.py        |  10 +-
 kipubot/handlers/_excel_file_handler.py   |  18 ++-
 kipubot/handlers/_graph_handlers.py       |  17 +--
 kipubot/handlers/_moro_handler.py         |   6 +-
 kipubot/handlers/_no_dm_handler.py        |   6 +-
 kipubot/handlers/_raffle_setup_handler.py |  48 ++++----
 kipubot/handlers/_start_handler.py        |   3 +-
 kipubot/handlers/_winner_handler.py       |  27 +++--
 kipubot/utils.py                          |  43 ++++----
 pyproject.toml                            | 127 +++++++++++++++++++++-
 tests/test_utils.py                       |  12 +-
 17 files changed, 272 insertions(+), 139 deletions(-)

diff --git a/kipubot/__init__.py b/kipubot/__init__.py
index 1b8cdb7..12d9cab 100644
--- a/kipubot/__init__.py
+++ b/kipubot/__init__.py
@@ -1,7 +1,9 @@
+import logging
 import os
 import sys
-import logging
+
 from dotenv import load_dotenv
+
 import kipubot.db
 
 load_dotenv()
diff --git a/kipubot/bot.py b/kipubot/bot.py
index 541cc7f..43ac146 100644
--- a/kipubot/bot.py
+++ b/kipubot/bot.py
@@ -1,19 +1,19 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
 
 from telegram.ext import ApplicationBuilder, PicklePersistence
+
 from kipubot import BOT_TOKEN
 from kipubot.handlers import (
-    start_handler,
-    moro_handler,
-    excel_file_handler,
     bot_added_handler,
-    winner_handler,
-    graph_handler,
+    error_handler,
+    excel_file_handler,
     expected_value_handler,
-    raffle_setup_handler,
+    graph_handler,
+    moro_handler,
     no_dm_handler,
-    error_handler,
+    raffle_setup_handler,
+    start_handler,
+    winner_handler,
 )
 
 
diff --git a/kipubot/constants.py b/kipubot/constants.py
index 2025616..12ae209 100644
--- a/kipubot/constants.py
+++ b/kipubot/constants.py
@@ -10,7 +10,7 @@
     "no_raffle": "No raffle data found in %(chat_title)s!",
     "raffle_db_error": (
         "Error getting raffle data from database!\n\n"
-        + "Perhaps one is not setup yet for this chat? 🤔"
+        "Perhaps one is not setup yet for this chat? 🤔"
     ),
     "no_entries": "No raffle entries yet in %(chat_title)s!",
     "no_data": "No data found for %(chat_title)s!",
@@ -21,20 +21,18 @@
     "unknown_error": "Unknown error, please try again later! ❌",
     "server_error": (
         "Server error, please try again later! ❌\n\n"
-        + "The administration has been contacted."
+        "The administration has been contacted."
     ),
     "invalid_file": "Invalid Excel file! ❌\n\n/start for instructions",
     "new_raffle_button": "🆕 Create a new raffle!",
     "update_raffle_button": "🔄 Update existing raffle!",
     "raffle_setup_base": (
-        "📝 Raffle setup for %(chat_title)s\n" + "=============================\n\n"
+        "📝 Raffle setup for %(chat_title)s\n=============================\n\n"
     ),
     "raffle_setup_update_or_new": (
-        "Found existing raffle.\n" + "Do you want update it or create a new one?"
-    ),
-    "raffle_setup_new": (
-        "No existing raffle found.\n" + "Do you want to create a new one?"
+        "Found existing raffle.\nDo you want update it or create a new one?"
     ),
+    "raffle_setup_new": "No existing raffle found.\nDo you want to create a new one?",
     "updated_raffle": "Updated raffle data in %(chat_title)s! 🔄",
     "raffle_setup_start_date": "Start date set to %(start_date)s!\n",
     "raffle_setup_end_date": "End date set to %(end_date)s!\n\n",
@@ -49,11 +47,11 @@
     "timed_out": "Timed out! 🕐",
     "start_prompt": (
         "Use the given commands or send me an Excel-file "
-        + "from MobilePay if you're the host of a raffle!"
+        "from MobilePay if you're the host of a raffle!"
     ),
     "invalid_winner_usage": "Please use the format /winner @username",
     "forbidden_command": "You are not allowed to use this command! ❌",
-    "user_not_found": ("Error getting user!\n" + "Perhaps they haven't /moro ed? 🤔"),
+    "user_not_found": ("Error getting user!\nPerhaps they haven't /moro ed? 🤔"),
     "already_winner": "You are already the winner!",
     "winner_confirmation": "%(username)s is the new winner!",
 }
diff --git a/kipubot/db.py b/kipubot/db.py
index 9c83daa..2bc923f 100644
--- a/kipubot/db.py
+++ b/kipubot/db.py
@@ -1,19 +1,21 @@
 import logging
-from typing import Tuple, List, Optional
-from pandas import Timestamp, DataFrame
+from contextlib import suppress
+
 import psycopg
-import psycopg.errors as PSErrors
+import psycopg.errors as pserrors
+from pandas import DataFrame, Timestamp
+
 from kipubot.errors import AlreadyRegisteredError
 
 # STORE DB CONNECTION
-_CON: Optional[psycopg.Connection] = None
+_CON: psycopg.Connection | None = None
 
 # LOGGER
 _logger = logging.getLogger(__name__)
 
 
 def _init_db(url: str) -> None:
-    global _CON  # pylint: disable=global-statement
+    global _CON  # noqa: PLW0603
 
     if not _CON:
         _logger.info("Connecting to DB...")
@@ -57,16 +59,15 @@ def _init_db(url: str) -> None:
                         amounts INTEGER[]
                     )"""
         )
-    except PSErrors.Error as e:
-        _logger.error("Unknown error during database initialization:")
-        _logger.error(e)
+    except pserrors.Error:
+        _logger.exception("Unknown error during database initialization!")
         _CON.rollback()
     else:
         _logger.info("Database succesfully initialized!")
         _CON.commit()
 
 
-def get_registered_member_ids(chat_id: int) -> List[int]:
+def get_registered_member_ids(chat_id: int) -> list[int]:
     return [
         row[0]
         for row in _CON.execute(
@@ -78,13 +79,13 @@ def get_registered_member_ids(chat_id: int) -> List[int]:
     ]
 
 
-def get_admin_ids(chat_id: int) -> List[int]:
+def get_admin_ids(chat_id: int) -> list[int]:
     return _CON.execute(
         "SELECT admins FROM chat WHERE chat_id = %s", (chat_id,)
     ).fetchone()[0]
 
 
-def get_prev_winner_ids(chat_id: int) -> List[int]:
+def get_prev_winner_ids(chat_id: int) -> list[int]:
     return _CON.execute(
         "SELECT prev_winners FROM chat WHERE chat_id = %s", (chat_id,)
     ).fetchone()[0]
@@ -96,7 +97,7 @@ def get_winner_id(chat_id: int) -> int:
     ).fetchone()[0]
 
 
-def get_chats_where_winner(user_id: int) -> List[Tuple[int, str]]:
+def get_chats_where_winner(user_id: int) -> list[tuple[int, str]]:
     return _CON.execute(
         """SELECT c.chat_id, c.title
             FROM chat AS c, in_chat as i
@@ -109,7 +110,7 @@ def get_chats_where_winner(user_id: int) -> List[Tuple[int, str]]:
 
 def get_raffle_data(
     chat_id: int,
-) -> Tuple[int, Timestamp, Timestamp, int, List[Timestamp], List[str], List[int]]:
+) -> tuple[int, Timestamp, Timestamp, int, list[Timestamp], list[str], list[int]]:
     return _CON.execute("SELECT * FROM raffle WHERE chat_id = %s", [chat_id]).fetchone()
 
 
@@ -128,7 +129,7 @@ def save_raffle_data(
         """INSERT INTO raffle
                     VALUES (%s, %s, %s, %s, %s, %s, %s)
                     ON CONFLICT (chat_id)
-                    DO UPDATE SET 
+                    DO UPDATE SET
                         start_date = EXCLUDED.start_date,
                         end_date = EXCLUDED.end_date,
                         entry_fee = EXCLUDED.entry_fee,
@@ -158,7 +159,7 @@ def save_user_or_ignore(user_id: int) -> None:
     _CON.commit()
 
 
-def save_chat_or_ignore(chat_id: int, title: str, admin_ids: List[int]) -> None:
+def save_chat_or_ignore(chat_id: int, title: str, admin_ids: list[int]) -> None:
     _CON.execute(
         """INSERT INTO chat (chat_id, title, admins)
                             VALUES (%s, %s, %s)
@@ -183,7 +184,7 @@ def register_user(chat_id: int, user_id: int) -> None:
                             VALUES (%s, %s)""",
             (user_id, chat_id),
         )
-    except PSErrors.UniqueViolation as e:
+    except pserrors.UniqueViolation as e:
         _CON.rollback()
         raise AlreadyRegisteredError from e
     else:
@@ -191,10 +192,8 @@ def register_user(chat_id: int, user_id: int) -> None:
 
 
 def register_user_or_ignore(chat_id: int, user_id: int) -> None:
-    try:
+    with suppress(AlreadyRegisteredError):
         register_user(chat_id, user_id)
-    except AlreadyRegisteredError:
-        pass
 
 
 def admin_cycle_winners(winner_id: int, chat_id: int) -> None:
diff --git a/kipubot/handlers/__init__.py b/kipubot/handlers/__init__.py
index a6aeb26..c509acc 100644
--- a/kipubot/handlers/__init__.py
+++ b/kipubot/handlers/__init__.py
@@ -11,12 +11,12 @@
     "error_handler",
 )
 
+from ._bot_added_handler import bot_added_handler
+from ._error_handler import error_handler
+from ._excel_file_handler import excel_file_handler
+from ._graph_handlers import expected_value_handler, graph_handler
+from ._moro_handler import moro_handler
+from ._no_dm_handler import no_dm_handler
 from ._raffle_setup_handler import raffle_setup_handler
 from ._start_handler import start_handler
-from ._moro_handler import moro_handler
-from ._excel_file_handler import excel_file_handler
-from ._bot_added_handler import bot_added_handler
 from ._winner_handler import winner_handler
-from ._graph_handlers import graph_handler, expected_value_handler
-from ._no_dm_handler import no_dm_handler
-from ._error_handler import error_handler
diff --git a/kipubot/handlers/_bot_added_handler.py b/kipubot/handlers/_bot_added_handler.py
index 0789acb..69216d1 100644
--- a/kipubot/handlers/_bot_added_handler.py
+++ b/kipubot/handlers/_bot_added_handler.py
@@ -1,9 +1,10 @@
+import psycopg.errors as pserrors
 from telegram import Update
-from telegram.ext import ContextTypes, ChatMemberHandler
 from telegram.constants import ChatMemberStatus
-import psycopg.errors as PSErrors
+from telegram.ext import ChatMemberHandler, ContextTypes
+
 from kipubot.constants import STRINGS
-from kipubot.db import save_chat_or_ignore, save_user_or_ignore, register_user_or_ignore
+from kipubot.db import register_user_or_ignore, save_chat_or_ignore, save_user_or_ignore
 
 
 async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
@@ -24,7 +25,7 @@ async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
             save_user_or_ignore(user_id)
             register_user_or_ignore(chat_id, user_id)
 
-        except PSErrors.IntegrityError as e:
+        except pserrors.IntegrityError as e:
             print("SQLite Error: " + str(e))
             await context.bot.send_message(
                 chat_id=chat_id, text=STRINGS["unknown_error"]
diff --git a/kipubot/handlers/_error_handler.py b/kipubot/handlers/_error_handler.py
index 3022dc0..694c1c2 100644
--- a/kipubot/handlers/_error_handler.py
+++ b/kipubot/handlers/_error_handler.py
@@ -1,10 +1,12 @@
-import logging
 import html
-import traceback
 import json
+import logging
+import traceback
+
 from telegram import Update
-from telegram.ext import ContextTypes
 from telegram.constants import ParseMode
+from telegram.ext import ContextTypes
+
 from kipubot import DEVELOPER_CHAT_ID
 from kipubot.constants import STRINGS
 
@@ -15,7 +17,7 @@ async def error_handler(update: Update, context: ContextTypes.DEFAULT_TYPE) -> N
     """Log the error and send a telegram message to notify the developer."""
     # Log the error before we do anything else,
     # so we can see it even if something breaks.
-    _logger.error(msg="Exception while handling an update:", exc_info=context.error)
+    _logger.error("Exception while handling an update:", exc_info=context.error)
 
     # traceback.format_exception returns the usual python message about an exception,
     # but as a list of strings rather than a single string,
diff --git a/kipubot/handlers/_excel_file_handler.py b/kipubot/handlers/_excel_file_handler.py
index 11205cf..4ebfc56 100644
--- a/kipubot/handlers/_excel_file_handler.py
+++ b/kipubot/handlers/_excel_file_handler.py
@@ -1,16 +1,14 @@
 import os
-from typing import Optional
-from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
+
+from telegram import InlineKeyboardButton, InlineKeyboardMarkup, Update
 from telegram.ext import ContextTypes, ConversationHandler, MessageHandler
-import telegram.ext.filters as Filters
-from kipubot.constants import EXCEL_MIME, STRINGS
-from kipubot.utils import validate_excel
+
+from kipubot.constants import STRINGS
 from kipubot.db import get_chats_where_winner
+from kipubot.utils import validate_excel
 
 
-async def excel_file(
-    update: Update, context: ContextTypes.DEFAULT_TYPE
-) -> Optional[str]:
+async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> str | None:
     user_id = update.effective_user.id
     dm_id = update.effective_chat.id
 
@@ -58,6 +56,4 @@ async def excel_file(
     )
 
 
-excel_file_handler = MessageHandler(
-    Filters.Document.MimeType(EXCEL_MIME) & Filters.ChatType.PRIVATE, excel_file
-)
+excel_file_handler = MessageHandler()
diff --git a/kipubot/handlers/_graph_handlers.py b/kipubot/handlers/_graph_handlers.py
index bac0ce8..01c0f8b 100644
--- a/kipubot/handlers/_graph_handlers.py
+++ b/kipubot/handlers/_graph_handlers.py
@@ -1,11 +1,12 @@
 from enum import Enum
+
+import psycopg.errors as pserrors
 from telegram import Update
-from telegram.ext import ContextTypes, CommandHandler
-import telegram.ext.filters as Filters
-import psycopg.errors as PSErrors
-from kipubot.errors import NoEntriesError, NoRaffleError
-from kipubot.utils import generate_graph, generate_expected
+from telegram.ext import CommandHandler, ContextTypes, filters
+
 from kipubot.constants import STRINGS
+from kipubot.errors import NoEntriesError, NoRaffleError
+from kipubot.utils import generate_expected, generate_graph
 
 
 class GraphType(Enum):
@@ -46,17 +47,17 @@ async def graph(
         await update.message.reply_text(
             STRINGS["no_entries"] % {"chat_title": chat_title}
         )
-    except PSErrors.Error as e:
+    except pserrors.Error as e:
         print(e)
         await update.message.reply_text(STRINGS["raffle_db_error"])
     except FileNotFoundError:
         await update.message.reply_text(STRINGS["no_data"] % {"chat_title": chat_title})
 
 
-graph_handler = CommandHandler(["kuvaaja", "graph"], graph, ~Filters.ChatType.PRIVATE)
+graph_handler = CommandHandler(["kuvaaja", "graph"], graph, ~filters.ChatType.PRIVATE)
 
 expected_value_handler = CommandHandler(
     ["odotusarvo", "expected"],
     lambda u, c: graph(u, c, graph_type=GraphType.EXPECTED),
-    ~Filters.ChatType.PRIVATE,
+    ~filters.ChatType.PRIVATE,
 )
diff --git a/kipubot/handlers/_moro_handler.py b/kipubot/handlers/_moro_handler.py
index f81b648..2eb87ea 100644
--- a/kipubot/handlers/_moro_handler.py
+++ b/kipubot/handlers/_moro_handler.py
@@ -1,6 +1,6 @@
 from telegram import Update
-from telegram.ext import ContextTypes, CommandHandler
-import telegram.ext.filters as Filters
+from telegram.ext import CommandHandler, ContextTypes, filters
+
 from kipubot.constants import STRINGS
 from kipubot.db import register_user
 from kipubot.errors import AlreadyRegisteredError
@@ -25,4 +25,4 @@ async def hello(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
         )
 
 
-moro_handler = CommandHandler(["moro", "hello"], hello, ~Filters.ChatType.PRIVATE)
+moro_handler = CommandHandler(["moro", "hello"], hello, ~filters.ChatType.PRIVATE)
diff --git a/kipubot/handlers/_no_dm_handler.py b/kipubot/handlers/_no_dm_handler.py
index 6696920..cf02ed1 100644
--- a/kipubot/handlers/_no_dm_handler.py
+++ b/kipubot/handlers/_no_dm_handler.py
@@ -1,6 +1,6 @@
 from telegram import Update
-from telegram.ext import ContextTypes, CommandHandler
-import telegram.ext.filters as Filters
+from telegram.ext import CommandHandler, ContextTypes, filters
+
 from kipubot.constants import STRINGS
 
 
@@ -11,5 +11,5 @@ async def chat_only(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None
 no_dm_handler = CommandHandler(
     ["moro", "hello", "kuvaaja", "graph", "voittaja", "winner"],
     chat_only,
-    Filters.ChatType.PRIVATE,
+    filters.ChatType.PRIVATE,
 )
diff --git a/kipubot/handlers/_raffle_setup_handler.py b/kipubot/handlers/_raffle_setup_handler.py
index 2274040..7a9f475 100644
--- a/kipubot/handlers/_raffle_setup_handler.py
+++ b/kipubot/handlers/_raffle_setup_handler.py
@@ -1,19 +1,21 @@
 import os
-from typing import Optional, Union
+from typing import Literal
+
 import pandas as pd
-from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
-from telegram.ext import ConversationHandler, CallbackQueryHandler, CallbackContext
+from telegram import InlineKeyboardButton, InlineKeyboardMarkup, Update
+from telegram.ext import CallbackContext, CallbackQueryHandler, ConversationHandler
+
 from kipubot.constants import STRINGS
+from kipubot.errors import NoRaffleError
 from kipubot.utils import (
-    get_raffle,
-    save_raffle,
-    read_excel_to_df,
-    is_int,
-    is_float,
     get_cur_time_hel,
+    get_raffle,
     int_price_to_str,
+    is_float,
+    is_int,
+    read_excel_to_df,
+    save_raffle,
 )
-from kipubot.errors import NoRaffleError
 
 # ==================
 # = UTIL FUNCTIONS =
@@ -46,9 +48,12 @@ async def convo_timeout(update: Update, context: CallbackContext) -> int:
 
 # KEYBOARD COMPONENTS
 # --------------------
+RAFFLE_CHAT_SELECTED_DATA_LENGTH = 4
+RAFFLE_DATE_UPDATE_DATA_LENGTH = 5
+RAFFLE_FEE_UPDATE_DATA_LENGTH = 4
 
 
-def raffle_keyboard(has_existing: bool = False) -> InlineKeyboardMarkup:
+def raffle_keyboard(*, has_existing: bool = False) -> InlineKeyboardMarkup:
     if has_existing:
         keyboard = [
             [
@@ -80,10 +85,7 @@ def raffle_keyboard(has_existing: bool = False) -> InlineKeyboardMarkup:
     return InlineKeyboardMarkup(keyboard)
 
 
-def date_keyboard(which: str) -> InlineKeyboardMarkup:
-    if which not in ["start", "end"]:
-        raise Exception("Invalid date type, should be start or end!")
-
+def date_keyboard(which: Literal["start", "end"]) -> InlineKeyboardMarkup:
     rough_controls = [
         InlineKeyboardButton("-1 d", callback_data=f"raffle:date:{which}:update:-24"),
         InlineKeyboardButton("-12 h", callback_data=f"raffle:date:{which}:update:-12"),
@@ -145,7 +147,7 @@ def fee_keyboard() -> InlineKeyboardMarkup:
 # =================
 
 
-async def setup_raffle(update: Update, context: CallbackContext) -> Union[str, int]:
+async def setup_raffle(update: Update, context: CallbackContext) -> str | int:
     query = update.callback_query
 
     if query.data == "raffle:cancel":
@@ -153,7 +155,7 @@ async def setup_raffle(update: Update, context: CallbackContext) -> Union[str, i
 
     if (
         query.data.startswith("raffle:chat_selected")
-        and len(query.data.split(":")) == 4
+        and len(query.data.split(":")) == RAFFLE_CHAT_SELECTED_DATA_LENGTH
         and is_int(query.data.split(":")[2])
     ):
         args = query.data.split(":")
@@ -189,7 +191,7 @@ async def setup_raffle(update: Update, context: CallbackContext) -> Union[str, i
     return await convo_error(update, context)
 
 
-async def setup_start_date(update: Update, context: CallbackContext) -> Optional[str]:
+async def setup_start_date(update: Update, context: CallbackContext) -> str | None:
     query = update.callback_query
 
     if query.data == "raffle:setup:new":
@@ -197,7 +199,7 @@ async def setup_start_date(update: Update, context: CallbackContext) -> Optional
 
     if (
         query.data.startswith("raffle:date:start:update")
-        and len(query.data.split(":")) == 5
+        and len(query.data.split(":")) == RAFFLE_DATE_UPDATE_DATA_LENGTH
         and is_float(query.data.split(":")[4])
     ):
         diff = float(query.data.split(":")[4])
@@ -224,7 +226,7 @@ async def setup_start_date(update: Update, context: CallbackContext) -> Optional
     return None
 
 
-async def setup_end_date(update: Update, context: CallbackContext) -> Optional[str]:
+async def setup_end_date(update: Update, context: CallbackContext) -> str | None:
     query = update.callback_query
 
     if query.data == "raffle:date:start:confirmed":
@@ -232,7 +234,7 @@ async def setup_end_date(update: Update, context: CallbackContext) -> Optional[s
 
     if (
         query.data.startswith("raffle:date:end:update")
-        and len(query.data.split(":")) == 5
+        and len(query.data.split(":")) == RAFFLE_DATE_UPDATE_DATA_LENGTH
         and is_float(query.data.split(":")[4])
     ):
         diff = float(query.data.split(":")[4])
@@ -273,7 +275,7 @@ async def setup_end_date(update: Update, context: CallbackContext) -> Optional[s
     return None
 
 
-async def setup_fee(update: Update, context: CallbackContext) -> Optional[str]:
+async def setup_fee(update: Update, context: CallbackContext) -> str | None:
     query = update.callback_query
 
     if query.data == "raffle:date:end:confirmed":
@@ -281,7 +283,7 @@ async def setup_fee(update: Update, context: CallbackContext) -> Optional[str]:
 
     if (
         query.data.startswith("raffle:fee:update")
-        and len(query.data.split(":")) == 4
+        and len(query.data.split(":")) == RAFFLE_FEE_UPDATE_DATA_LENGTH
         and is_int(query.data.split(":")[3])
     ):
         diff = int(query.data.split(":")[3])
@@ -324,7 +326,7 @@ async def setup_fee(update: Update, context: CallbackContext) -> Optional[str]:
     return None
 
 
-async def finish_setup(update: Update, context: CallbackContext) -> Optional[int]:
+async def finish_setup(update: Update, context: CallbackContext) -> int | None:
     query = update.callback_query
     dm_id = update.effective_chat.id
 
diff --git a/kipubot/handlers/_start_handler.py b/kipubot/handlers/_start_handler.py
index fcb1c80..d240b1b 100644
--- a/kipubot/handlers/_start_handler.py
+++ b/kipubot/handlers/_start_handler.py
@@ -1,5 +1,6 @@
 from telegram import Update
-from telegram.ext import ContextTypes, CommandHandler
+from telegram.ext import CommandHandler, ContextTypes
+
 from kipubot.constants import STRINGS
 
 
diff --git a/kipubot/handlers/_winner_handler.py b/kipubot/handlers/_winner_handler.py
index a292945..c300bb7 100644
--- a/kipubot/handlers/_winner_handler.py
+++ b/kipubot/handlers/_winner_handler.py
@@ -1,20 +1,27 @@
+import logging
+
+import psycopg.errors as pserrors
 from telegram import Update
-from telegram.ext import ContextTypes, CommandHandler
 from telegram.constants import MessageEntityType
-import telegram.ext.filters as Filters
-import psycopg.errors as PSErrors
+from telegram.ext import CommandHandler, ContextTypes, filters
+
 from kipubot.constants import STRINGS
 from kipubot.db import (
     admin_cycle_winners,
     cycle_winners,
-    get_registered_member_ids,
     get_admin_ids,
     get_prev_winner_ids,
+    get_registered_member_ids,
     get_winner_id,
     replace_cur_winner,
 )
 from kipubot.utils import get_chat_member_opt
 
+_logger = logging.getLogger(__name__)
+
+
+TWO_ENTITIES = 2
+
 
 async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
     # only usable by admin, previous winner (in case of typos) and current winner
@@ -25,7 +32,7 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
     chat_id = update.effective_chat.id
     user_id = update.effective_user.id
 
-    if len(ent) != 2 or ent[1].type != MessageEntityType.MENTION:
+    if len(ent) != TWO_ENTITIES or ent[1].type != MessageEntityType.MENTION:
         await update.message.reply_text(STRINGS["invalid_winner_usage"])
         return
 
@@ -44,8 +51,8 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
 
         registered_member_ids = get_registered_member_ids(chat_id)
         registered_members = [
-            await get_chat_member_opt(update.effective_chat, id)
-            for id in registered_member_ids
+            await get_chat_member_opt(update.effective_chat, member_id)
+            for member_id in registered_member_ids
         ]
         # drop None values
         registered_members = [m for m in registered_members if m]
@@ -72,8 +79,8 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
         # winner: moves themselves to prev and makes new current
         else:
             cycle_winners(user_id, winner_id, chat_id)
-    except PSErrors.Error as e:
-        print(e)
+    except pserrors.Error:
+        _logger.exception("SQLite Error:")
         await update.message.reply_text(STRINGS["user_not_found"])
         return
 
@@ -83,5 +90,5 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
 
 
 winner_handler = CommandHandler(
-    ["voittaja", "winner"], winner, ~Filters.ChatType.PRIVATE
+    ["voittaja", "winner"], winner, ~filters.ChatType.PRIVATE
 )
diff --git a/kipubot/utils.py b/kipubot/utils.py
index 7ceb2af..fc4ee92 100644
--- a/kipubot/utils.py
+++ b/kipubot/utils.py
@@ -1,43 +1,47 @@
 import os
 import re
-from typing import NamedTuple, Optional
-import pytz
-import matplotlib.pyplot as plt
+from typing import NamedTuple
+
 import matplotlib.dates as mdates
-from matplotlib.ticker import AutoMinorLocator
-import pandas as pd
+import matplotlib.pyplot as plt
 import numpy as np
-from scipy import stats
-from scipy.optimize import curve_fit
+import pandas as pd
+import pytz
 import uncertainties as unc
 import uncertainties.unumpy as unp
-from telegram import ChatMember, Chat
+from matplotlib.ticker import AutoMinorLocator
+from scipy import stats
+from scipy.optimize import curve_fit
+from telegram import Chat, ChatMember
 from telegram.error import BadRequest
-from kipubot.errors import NoRaffleError
+
 from kipubot import db
+from kipubot.errors import NoRaffleError
 
 
 class RaffleData(NamedTuple):
     start_date: pd.Timestamp
     end_date: pd.Timestamp
     entry_fee: int
-    df: Optional[pd.DataFrame]
+    df: pd.DataFrame | None
 
 
 def is_int(x: str) -> bool:
     try:
         int(x)
-        return True
     except ValueError:
         return False
+    else:
+        return True
 
 
 def is_float(x: str) -> bool:
     try:
         float(x)
-        return True
     except ValueError:
         return False
+    else:
+        return True
 
 
 def int_price_to_str(num: int) -> str:
@@ -56,13 +60,13 @@ def int_price_to_str(num: int) -> str:
     return str_num
 
 
-async def get_chat_member_opt(chat: Chat, member_id: int) -> Optional[ChatMember]:
+async def get_chat_member_opt(chat: Chat, member_id: int) -> ChatMember | None:
     try:
         return await chat.get_member(member_id)
     except BadRequest as e:
         if e.message == "User not found":
             return None
-        raise e
+        raise
 
 
 def preband(x, xd, yd, p, func):
@@ -162,11 +166,12 @@ def read_excel_to_df(
     return df
 
 
-def get_raffle(chat_id: int, include_df: bool = False) -> RaffleData:
+def get_raffle(chat_id: int, *, include_df: bool = False) -> RaffleData:
     query_result = db.get_raffle_data(chat_id)
 
     if query_result is None:
-        raise NoRaffleError(f"No raffle found for chat {chat_id}")
+        error_text = f"No raffle found for chat {chat_id}"
+        raise NoRaffleError(error_text)
 
     _, start_date, end_date, entry_fee, dates, entries, amounts = query_result
 
@@ -216,10 +221,8 @@ def parse_expected(raffle_data: RaffleData) -> RaffleData:
     df["win_odds"] = 1.0 / df["unique"]
     df["next_expected"] = (
         (
-            (
-                -entry_fee * (1 - df["win_odds"])
-                + (df["amount"] - entry_fee) * df["win_odds"]
-            )
+            -entry_fee * (1 - df["win_odds"])
+            + (df["amount"] - entry_fee) * df["win_odds"]
         )
         .fillna(0)
         .round()
diff --git a/pyproject.toml b/pyproject.toml
index 917191a..eab0287 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,12 +11,13 @@ readme = "README.md"
 
 
 [tool.poe.tasks]
-start = "poetry run python -m kipubot"
+start = "python3 -m kipubot"
 dev = "watchfiles 'poetry run  poe start' kipubot"
-test = "poetry run pytest"
+test = "pytest"
 test_hot = "watchfiles 'pytest' kipubot tests"
-lint = "poetry run ruff ."
-type = "poetry run pytype ."
+lint = "ruff ."
+type = "pytype ."
+format = [{ cmd = "black ." }, { cmd = "ruff . --fix" }]
 
 [tool.poetry.dependencies]
 python = ">=3.10,<3.11"
@@ -41,3 +42,121 @@ poethepoet = "^0.19.0"
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
+
+[tool.ruff]
+line-length = 88
+target-version = "py310"
+
+select = [
+  "A",
+  "B",
+  "C90",
+  "DTZ",
+  "E",
+  "EM",
+  "F",
+  "FBT",
+  "I",
+  "ICN",
+  "ISC",
+  "N",
+  "PLC",
+  "PLE",
+  "PLR",
+  "PLW",
+  "Q",
+  "RUF",
+  "S",
+  "SIM",
+  "TRY",
+  "TID",
+  "UP",
+  "W",
+  "YTT",
+]
+ignore = []
+
+fixable = [
+  "A",
+  "B",
+  "C90", # C
+  "D",
+  "E",
+  "F",
+  "G",
+  "I",
+  "N",
+  "Q",
+  "S",
+  "W",
+  "ANN",
+  "ARG",
+  "BLE",
+  "COM",
+  "DJ",
+  "DTZ",
+  "EM",
+  "ERA",
+  "EXE",
+  "FBT",
+  "ICN",
+  "INP",
+  "ISC",
+  "NPY",
+  "PD",
+  "PGH",
+  "PIE",
+  "PL",
+  "PT",
+  "PTH",
+  "PYI",
+  "RET",
+  "RSE",
+  "RUF",
+  "SIM",
+  "SLF",
+  "TCH",
+  "TID",
+  #"T",
+  "TRY",
+  "UP",
+  "YTT",
+]
+unfixable = []
+
+# Exclude a variety of commonly ignored directories.
+exclude = [
+  ".bzr",
+  ".direnv",
+  ".eggs",
+  ".git",
+  ".hg",
+  ".mypy_cache",
+  ".nox",
+  ".pants.d",
+  ".pytype",
+  ".ruff_cache",
+  ".svn",
+  ".tox",
+  ".venv",
+  "__pypackages__",
+  "_build",
+  "buck-out",
+  "build",
+  "dist",
+  "node_modules",
+  "venv",
+]
+
+# Same as Black.
+
+# Allow unused variables when underscore-prefixed.
+dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
+
+
+[tool.ruff.mccabe]
+# Unlike Flake8, default to a complexity level of 10.
+max-complexity = 10
+
+[tool.ruff.per-file-ignores]
+"tests/*" = ["S101"]
diff --git a/tests/test_utils.py b/tests/test_utils.py
index c73b4cb..6da6149 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,15 +1,17 @@
 #!/usr/bin/env python3
 
-import pytest
 from datetime import datetime
-from kipubot.db import delete_chat, delete_raffle_data, save_chat_or_ignore, _init_db
-from kipubot import DATABASE_URL
+
+import pytest
 from pandas.testing import assert_frame_equal
+
+from kipubot import DATABASE_URL
+from kipubot.db import _init_db, delete_chat, delete_raffle_data, save_chat_or_ignore
 from kipubot.utils import (
     get_raffle,
     int_price_to_str,
-    remove_emojis,
     read_excel_to_df,
+    remove_emojis,
     save_raffle,
 )
 
@@ -100,7 +102,7 @@ def test_graph_save(self):
         entry_fee = 1
         df = read_excel_to_df(file_path, start_date, end_date)
         save_raffle(1, start_date, end_date, entry_fee, df)
-        raffle_from_db = get_raffle(1, True)
+        raffle_from_db = get_raffle(1, include_df=True)
         delete_raffle_data(1)
         assert start_date == raffle_from_db.start_date
         assert end_date == raffle_from_db.end_date

From 6efe16497d38624dcbfe7f2e8cd3620d5f478f78 Mon Sep 17 00:00:00 2001
From: Mikael Siidorow 
Date: Mon, 17 Apr 2023 15:34:24 +0300
Subject: [PATCH 3/8] fix: switch to mypy, fix all type issues

---
 docker-compose.test.yml                       |   2 +-
 kipubot/__init__.py                           |  33 +-
 kipubot/bot.py                                |  10 +-
 kipubot/db.py                                 | 259 ++++----
 kipubot/handlers/__init__.py                  |   3 +-
 kipubot/handlers/_bot_added_handler.py        |  13 +-
 kipubot/handlers/_error_handler.py            |  27 +-
 kipubot/handlers/_excel_file_handler.py       |  25 +-
 .../{_graph_handlers.py => _graph_handler.py} |  41 +-
 kipubot/handlers/_moro_handler.py             |   3 +
 kipubot/handlers/_no_dm_handler.py            |   2 +
 kipubot/handlers/_raffle_setup_handler.py     |  88 ++-
 kipubot/handlers/_start_handler.py            |   3 +
 kipubot/handlers/_winner_handler.py           |  15 +-
 kipubot/utils.py                              |  64 +-
 poetry.lock                                   | 578 ++++++++----------
 pyproject.toml                                |  31 +-
 setup.cfg                                     |   2 -
 tests/test_utils.py                           |  12 +-
 19 files changed, 645 insertions(+), 566 deletions(-)
 rename kipubot/handlers/{_graph_handlers.py => _graph_handler.py} (64%)
 delete mode 100644 setup.cfg

diff --git a/docker-compose.test.yml b/docker-compose.test.yml
index ecc5e8c..7156a7b 100644
--- a/docker-compose.test.yml
+++ b/docker-compose.test.yml
@@ -15,7 +15,7 @@ services:
       - ./tests:/bot/tests
     environment:
       - MODE=TEST
-      - PYTHONPATH=${PYTHONPATH}:kipubot
       - DATABASE_URL=postgresql://username:password@test-database:5432
+      - BOT_TOKEN=fake
     depends_on:
       - test-database
diff --git a/kipubot/__init__.py b/kipubot/__init__.py
index 12d9cab..6a9530d 100644
--- a/kipubot/__init__.py
+++ b/kipubot/__init__.py
@@ -1,12 +1,7 @@
 import logging
 import os
-import sys
 
-from dotenv import load_dotenv
-
-import kipubot.db
-
-load_dotenv()
+from pydantic import BaseSettings
 
 # LOGGING CONFIG
 logging.basicConfig(
@@ -14,29 +9,23 @@
 )
 
 
-# ENV VARIABLES
-BOT_TOKEN = os.getenv("BOT_TOKEN", default=None)
-DATABASE_URL = os.getenv("DATABASE_URL", default=None)
-DEVELOPER_CHAT_ID = os.getenv("DEVELOPER_CHAT_ID", default=None)
-MODE = os.getenv("MODE", default=None)
-if BOT_TOKEN is None and MODE != "TEST":
-    logging.error("Bot token is not set!")
-    sys.exit(1)
+# ENV CONFIG
+class Settings(BaseSettings):
+    BOT_TOKEN: str
+    DATABASE_URL: str
+    DEVELOPER_CHAT_ID: str | None = None
 
-if DATABASE_URL is None:
-    logging.error("Database URL is not set!")
-    sys.exit(1)
+    class Config:
+        env_file = ".env"
+        env_file_encoding = "utf-8"
 
-if DEVELOPER_CHAT_ID is None:
-    logging.warning("Developer chat ID is not set!")
 
+config = Settings()
 
-# INITIALIZE DB AND CREATE TABLES IF THEY DON'T EXIST
-kipubot.db._init_db(DATABASE_URL)  # pylint: disable=protected-access
 
 # CHECK/CREATE DATA DIRECTORY
 if not os.path.exists("data"):
     logging.info("Creating ./data/ directory...")
     os.mkdir("data")
 
-__all__ = ("BOT_TOKEN", "DATABASE_URL", "DEVELOPER_CHAT_ID")
+__all__ = ("config",)
diff --git a/kipubot/bot.py b/kipubot/bot.py
index 43ac146..710747e 100644
--- a/kipubot/bot.py
+++ b/kipubot/bot.py
@@ -2,12 +2,12 @@
 
 from telegram.ext import ApplicationBuilder, PicklePersistence
 
-from kipubot import BOT_TOKEN
+from kipubot import config
+from kipubot.db import _init_db
 from kipubot.handlers import (
     bot_added_handler,
     error_handler,
     excel_file_handler,
-    expected_value_handler,
     graph_handler,
     moro_handler,
     no_dm_handler,
@@ -18,8 +18,11 @@
 
 
 def main() -> None:
+    # INITIALIZE DB AND CREATE TABLES IF THEY DON'T EXIST
+    _init_db()
+
     persistence = PicklePersistence(filepath="data/.pkl")
-    app = ApplicationBuilder().token(BOT_TOKEN).persistence(persistence).build()
+    app = ApplicationBuilder().token(config.BOT_TOKEN).persistence(persistence).build()
 
     app.add_handler(start_handler)
 
@@ -30,7 +33,6 @@ def main() -> None:
     app.add_handler(moro_handler)
     app.add_handler(graph_handler)
     app.add_handler(winner_handler)
-    app.add_handler(expected_value_handler)
 
     # warning about using a command in a private chat
     app.add_handler(no_dm_handler)
diff --git a/kipubot/db.py b/kipubot/db.py
index 2bc923f..58a14d2 100644
--- a/kipubot/db.py
+++ b/kipubot/db.py
@@ -1,30 +1,44 @@
 import logging
-from contextlib import suppress
+from collections.abc import Generator
+from contextlib import contextmanager, suppress
 
 import psycopg
 import psycopg.errors as pserrors
 from pandas import DataFrame, Timestamp
+from psycopg.rows import TupleRow
 
+from kipubot import config
 from kipubot.errors import AlreadyRegisteredError
 
-# STORE DB CONNECTION
-_CON: psycopg.Connection | None = None
-
 # LOGGER
 _logger = logging.getLogger(__name__)
 
 
-def _init_db(url: str) -> None:
-    global _CON  # noqa: PLW0603
-
-    if not _CON:
-        _logger.info("Connecting to DB...")
-        _CON = psycopg.connect(url)
-        _logger.info("Connected!")
+# DB CONNECTION
+@contextmanager
+def get_pg_conn() -> Generator[psycopg.Connection[TupleRow], None, None]:
+    """
+    Get a connection to the postgres database.
+    """
+    _logger.info("Connecting to DB...")
+    conn = psycopg.connect(config.DATABASE_URL)
+    _logger.info("Connected!")
 
-    _logger.info("Initializing database...")
     try:
-        _CON.execute(
+        yield conn
+    except pserrors.Error:
+        _logger.exception("Unknown error during database operation!")
+        conn.rollback()
+    else:
+        _logger.info("Committing changes...")
+        conn.commit()
+    finally:
+        conn.close()
+
+
+def _init_db() -> None:
+    with get_pg_conn() as conn:
+        conn.execute(
             """CREATE TABLE IF NOT EXISTS chat (
                         chat_id BIGINT PRIMARY KEY,
                         title VARCHAR(128),
@@ -34,13 +48,13 @@ def _init_db(url: str) -> None:
                     )"""
         )
 
-        _CON.execute(
+        conn.execute(
             """CREATE TABLE IF NOT EXISTS chat_user (
                         user_id BIGINT PRIMARY KEY
                     )"""
         )
 
-        _CON.execute(
+        conn.execute(
             """CREATE TABLE IF NOT EXISTS in_chat (
                         user_id BIGINT REFERENCES chat_user(user_id),
                         chat_id BIGINT REFERENCES chat(chat_id),
@@ -48,7 +62,7 @@ def _init_db(url: str) -> None:
                     )"""
         )
 
-        _CON.execute(
+        conn.execute(
             """CREATE TABLE IF NOT EXISTS raffle (
                         chat_id BIGINT PRIMARY KEY REFERENCES chat(chat_id),
                         start_date TIMESTAMP,
@@ -59,59 +73,64 @@ def _init_db(url: str) -> None:
                         amounts INTEGER[]
                     )"""
         )
-    except pserrors.Error:
-        _logger.exception("Unknown error during database initialization!")
-        _CON.rollback()
-    else:
-        _logger.info("Database succesfully initialized!")
-        _CON.commit()
 
 
 def get_registered_member_ids(chat_id: int) -> list[int]:
-    return [
-        row[0]
-        for row in _CON.execute(
-            """SELECT chat_user.user_id
-            FROM chat_user, in_chat
-            WHERE chat_id = %s AND chat_user.user_id = in_chat.user_id""",
-            (chat_id,),
-        ).fetchall()
-    ]
+    with get_pg_conn() as conn:
+        return [
+            row[0]
+            for row in conn.execute(
+                """SELECT chat_user.user_id
+                FROM chat_user, in_chat
+                WHERE chat_id = %s AND chat_user.user_id = in_chat.user_id""",
+                (chat_id,),
+            ).fetchall()
+        ]
 
 
 def get_admin_ids(chat_id: int) -> list[int]:
-    return _CON.execute(
-        "SELECT admins FROM chat WHERE chat_id = %s", (chat_id,)
-    ).fetchone()[0]
+    with get_pg_conn() as conn:
+        data = conn.execute(
+            "SELECT admins FROM chat WHERE chat_id = %s", (chat_id,)
+        ).fetchone()
+        return data[0] if data else []
 
 
 def get_prev_winner_ids(chat_id: int) -> list[int]:
-    return _CON.execute(
-        "SELECT prev_winners FROM chat WHERE chat_id = %s", (chat_id,)
-    ).fetchone()[0]
+    with get_pg_conn() as conn:
+        data = conn.execute(
+            "SELECT prev_winners FROM chat WHERE chat_id = %s", (chat_id,)
+        ).fetchone()
+        return data[0] if data else []
 
 
 def get_winner_id(chat_id: int) -> int:
-    return _CON.execute(
-        "SELECT cur_winner FROM chat WHERE chat_id = %s", (chat_id,)
-    ).fetchone()[0]
+    with get_pg_conn() as conn:
+        data = conn.execute(
+            "SELECT cur_winner FROM chat WHERE chat_id = %s", (chat_id,)
+        ).fetchone()
+        return data[0] if data else None
 
 
 def get_chats_where_winner(user_id: int) -> list[tuple[int, str]]:
-    return _CON.execute(
-        """SELECT c.chat_id, c.title
-            FROM chat AS c, in_chat as i
-            WHERE i.user_id = %(id)s
-                AND c.chat_id = i.chat_id
-                AND (c.cur_winner = %(id)s)""",
-        {"id": user_id},
-    ).fetchall()
+    with get_pg_conn() as conn:
+        return conn.execute(  # type: ignore
+            """SELECT c.chat_id, c.title
+                FROM chat AS c, in_chat as i
+                WHERE i.user_id = %(id)s
+                    AND c.chat_id = i.chat_id
+                    AND (c.cur_winner = %(id)s)""",
+            {"id": user_id},
+        ).fetchall()
 
 
 def get_raffle_data(
     chat_id: int,
 ) -> tuple[int, Timestamp, Timestamp, int, list[Timestamp], list[str], list[int]]:
-    return _CON.execute("SELECT * FROM raffle WHERE chat_id = %s", [chat_id]).fetchone()
+    with get_pg_conn() as conn:
+        return conn.execute(  # type: ignore
+            "SELECT * FROM raffle WHERE chat_id = %s", [chat_id]
+        ).fetchone()
 
 
 def save_raffle_data(
@@ -125,70 +144,73 @@ def save_raffle_data(
     entries = df["name"].tolist()
     amounts = df["amount"].tolist()
 
-    _CON.execute(
-        """INSERT INTO raffle
-                    VALUES (%s, %s, %s, %s, %s, %s, %s)
-                    ON CONFLICT (chat_id)
-                    DO UPDATE SET
-                        start_date = EXCLUDED.start_date,
-                        end_date = EXCLUDED.end_date,
-                        entry_fee = EXCLUDED.entry_fee,
-                        dates = EXCLUDED.dates,
-                        entries = EXCLUDED.entries,
-                        amounts = EXCLUDED.amounts""",
-        (chat_id, start_date, end_date, entry_fee, dates, entries, amounts),
-    )
+    with get_pg_conn() as conn:
+        conn.execute(
+            """INSERT INTO raffle
+                        VALUES (%s, %s, %s, %s, %s, %s, %s)
+                        ON CONFLICT (chat_id)
+                        DO UPDATE SET
+                            start_date = EXCLUDED.start_date,
+                            end_date = EXCLUDED.end_date,
+                            entry_fee = EXCLUDED.entry_fee,
+                            dates = EXCLUDED.dates,
+                            entries = EXCLUDED.entries,
+                            amounts = EXCLUDED.amounts""",
+            (chat_id, start_date, end_date, entry_fee, dates, entries, amounts),
+        )
 
-    _CON.commit()
+        conn.commit()
 
 
 def delete_raffle_data(chat_id: int):
-    _CON.execute("""DELETE FROM raffle where chat_id=%s""", (chat_id,))
-    _CON.commit()
+    with get_pg_conn() as conn:
+        conn.execute("""DELETE FROM raffle where chat_id=%s""", (chat_id,))
+        conn.commit()
 
 
 def save_user_or_ignore(user_id: int) -> None:
-    _CON.execute(
-        """INSERT INTO chat_user
-                VALUES (%s)
-                ON CONFLICT (user_id)
-                DO NOTHING""",
-        (user_id,),
-    )
-
-    _CON.commit()
+    with get_pg_conn() as conn:
+        conn.execute(
+            """INSERT INTO chat_user
+                    VALUES (%s)
+                    ON CONFLICT (user_id)
+                    DO NOTHING""",
+            (user_id,),
+        )
 
 
 def save_chat_or_ignore(chat_id: int, title: str, admin_ids: list[int]) -> None:
-    _CON.execute(
-        """INSERT INTO chat (chat_id, title, admins)
-                            VALUES (%s, %s, %s)
-                            ON CONFLICT (chat_id)
-                            DO NOTHING""",
-        (chat_id, title, admin_ids),
-    )
-    _CON.commit()
+    with get_pg_conn() as conn:
+        conn.execute(
+            """INSERT INTO chat (chat_id, title, admins)
+                                VALUES (%s, %s, %s)
+                                ON CONFLICT (chat_id)
+                                DO NOTHING""",
+            (chat_id, title, admin_ids),
+        )
 
 
 def delete_chat(chat_id: int):
-    _CON.execute("""DELETE FROM chat where chat_id=%s""", (chat_id,))
-    _CON.commit()
+    with get_pg_conn() as conn:
+        conn.execute("""DELETE FROM chat where chat_id=%s""", (chat_id,))
+        conn.commit()
 
 
 def register_user(chat_id: int, user_id: int) -> None:
     save_user_or_ignore(user_id)
 
-    try:
-        _CON.execute(
-            """INSERT INTO in_chat(user_id, chat_id)
-                            VALUES (%s, %s)""",
-            (user_id, chat_id),
-        )
-    except pserrors.UniqueViolation as e:
-        _CON.rollback()
-        raise AlreadyRegisteredError from e
-    else:
-        _CON.commit()
+    with get_pg_conn() as conn:
+        try:
+            conn.execute(
+                """INSERT INTO in_chat(user_id, chat_id)
+                                VALUES (%s, %s)""",
+                (user_id, chat_id),
+            )
+        except pserrors.UniqueViolation as e:
+            conn.rollback()
+            raise AlreadyRegisteredError from e
+        else:
+            conn.commit()
 
 
 def register_user_or_ignore(chat_id: int, user_id: int) -> None:
@@ -197,32 +219,33 @@ def register_user_or_ignore(chat_id: int, user_id: int) -> None:
 
 
 def admin_cycle_winners(winner_id: int, chat_id: int) -> None:
-    _CON.execute(
-        """UPDATE chat
-                            SET prev_winners = array_append(prev_winners, cur_winner),
-                                cur_winner=%s
-                            WHERE chat_id=%s""",
-        (winner_id, chat_id),
-    )
-    _CON.commit()
+    with get_pg_conn() as conn:
+        conn.execute(
+            """UPDATE chat
+                SET prev_winners = array_append(prev_winners, cur_winner),
+                                    cur_winner=%s
+                WHERE chat_id=%s""",
+            (winner_id, chat_id),
+        )
+        conn.commit()
 
 
 def replace_cur_winner(winner_id: int, chat_id: int) -> None:
-    _CON.execute(
-        """UPDATE chat
-                            SET cur_winner=%s
-                            WHERE chat_id=%s""",
-        (winner_id, chat_id),
-    )
-    _CON.commit()
+    with get_pg_conn() as conn:
+        conn.execute(
+            """UPDATE chat
+                                SET cur_winner=%s
+                                WHERE chat_id=%s""",
+            (winner_id, chat_id),
+        )
 
 
 def cycle_winners(user_id: int, winner_id: int, chat_id: int) -> None:
-    _CON.execute(
-        """UPDATE chat
-                            SET prev_winners=array_append(prev_winners, %s),
-                                cur_winner=%s'
-                            WHERE chat_id=%s""",
-        (user_id, winner_id, chat_id),
-    )
-    _CON.commit()
+    with get_pg_conn() as conn:
+        conn.execute(
+            """UPDATE chat
+                                SET prev_winners=array_append(prev_winners, %s),
+                                    cur_winner=%s'
+                                WHERE chat_id=%s""",
+            (user_id, winner_id, chat_id),
+        )
diff --git a/kipubot/handlers/__init__.py b/kipubot/handlers/__init__.py
index c509acc..435b0dc 100644
--- a/kipubot/handlers/__init__.py
+++ b/kipubot/handlers/__init__.py
@@ -5,7 +5,6 @@
     "bot_added_handler",
     "winner_handler",
     "graph_handler",
-    "expected_value_handler",
     "raffle_setup_handler",
     "no_dm_handler",
     "error_handler",
@@ -14,7 +13,7 @@
 from ._bot_added_handler import bot_added_handler
 from ._error_handler import error_handler
 from ._excel_file_handler import excel_file_handler
-from ._graph_handlers import expected_value_handler, graph_handler
+from ._graph_handler import graph_handler
 from ._moro_handler import moro_handler
 from ._no_dm_handler import no_dm_handler
 from ._raffle_setup_handler import raffle_setup_handler
diff --git a/kipubot/handlers/_bot_added_handler.py b/kipubot/handlers/_bot_added_handler.py
index 69216d1..4c4c333 100644
--- a/kipubot/handlers/_bot_added_handler.py
+++ b/kipubot/handlers/_bot_added_handler.py
@@ -8,6 +8,13 @@
 
 
 async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
+    if (
+        not update.my_chat_member
+        or not update.effective_chat
+        or not update.effective_user
+    ):
+        return
+
     # when bot is added to channel:
     # -> add the channel to a database
     # -> set the adder as the current winner of the channel
@@ -15,7 +22,11 @@ async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
 
     if update.my_chat_member.new_chat_member.status != ChatMemberStatus.LEFT:
         chat_id = update.effective_chat.id
-        title = update.effective_chat.title
+        title = (
+            update.effective_chat.title
+            if update.effective_chat.title
+            else "untitled chat"
+        )
         user_id = update.effective_user.id
         admins = await update.effective_chat.get_administrators()
         admin_ids = list(set([admin.user.id for admin in admins] + [user_id]))
diff --git a/kipubot/handlers/_error_handler.py b/kipubot/handlers/_error_handler.py
index 694c1c2..c87984c 100644
--- a/kipubot/handlers/_error_handler.py
+++ b/kipubot/handlers/_error_handler.py
@@ -7,13 +7,13 @@
 from telegram.constants import ParseMode
 from telegram.ext import ContextTypes
 
-from kipubot import DEVELOPER_CHAT_ID
+from kipubot import config
 from kipubot.constants import STRINGS
 
 _logger = logging.getLogger(__name__)
 
 
-async def error_handler(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
+async def error_handler(update: object, context: ContextTypes.DEFAULT_TYPE) -> None:
     """Log the error and send a telegram message to notify the developer."""
     # Log the error before we do anything else,
     # so we can see it even if something breaks.
@@ -22,9 +22,11 @@ async def error_handler(update: Update, context: ContextTypes.DEFAULT_TYPE) -> N
     # traceback.format_exception returns the usual python message about an exception,
     # but as a list of strings rather than a single string,
     # so we have to join them together.
-    tb_list = traceback.format_exception(
-        None, context.error, context.error.__traceback__
+    context_error = context.error
+    context_traceback = (
+        context_error.__traceback__ if context_error is not None else None
     )
+    tb_list = traceback.format_exception(None, context.error, context_traceback)
     tb_string = "".join(tb_list)
 
     # Build the message with some markup and additional information about what happened.
@@ -42,11 +44,14 @@ async def error_handler(update: Update, context: ContextTypes.DEFAULT_TYPE) -> N
         f"
{html.escape(tb_string)}
"
     )
 
-    # Finally, send the message
-    await context.bot.send_message(
-        chat_id=DEVELOPER_CHAT_ID, text=message, parse_mode=ParseMode.HTML
-    )
+    # Finally, send the message if DEVELOPER_CHAT_ID is set.
+    if config.DEVELOPER_CHAT_ID:
+        await context.bot.send_message(
+            chat_id=config.DEVELOPER_CHAT_ID, text=message, parse_mode=ParseMode.HTML
+        )
+
     # Also send a message to the user who triggered the error.
-    await context.bot.send_message(
-        chat_id=update.effective_chat.id, text=STRINGS["server_error"]
-    )
+    if isinstance(update, Update) and update.effective_chat is not None:
+        await context.bot.send_message(
+            chat_id=update.effective_chat.id, text=STRINGS["server_error"]
+        )
diff --git a/kipubot/handlers/_excel_file_handler.py b/kipubot/handlers/_excel_file_handler.py
index 4ebfc56..bf44205 100644
--- a/kipubot/handlers/_excel_file_handler.py
+++ b/kipubot/handlers/_excel_file_handler.py
@@ -1,14 +1,22 @@
 import os
 
 from telegram import InlineKeyboardButton, InlineKeyboardMarkup, Update
-from telegram.ext import ContextTypes, ConversationHandler, MessageHandler
+from telegram.ext import ContextTypes, ConversationHandler, MessageHandler, filters
 
-from kipubot.constants import STRINGS
+from kipubot.constants import EXCEL_MIME, STRINGS
 from kipubot.db import get_chats_where_winner
 from kipubot.utils import validate_excel
 
 
-async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> str | None:
+async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int:
+    if (
+        not update.effective_chat
+        or not update.effective_user
+        or not update.message
+        or not update.message.document
+    ):
+        return ConversationHandler.END
+
     user_id = update.effective_user.id
     dm_id = update.effective_chat.id
 
@@ -26,13 +34,12 @@ async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> str
     if not os.path.exists(base_path):
         os.mkdir(base_path)
 
-    with open(excel_path, "wb") as f:
-        await file.download(out=f)
+    await file.download_to_drive(excel_path)
 
     if not validate_excel(excel_path):
         await update.message.reply_text(STRINGS["invalid_file"])
         os.remove(excel_path)
-        return
+        return ConversationHandler.END
 
     chat_buttons = []
 
@@ -55,5 +62,9 @@ async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> str
         STRINGS["choose_channel"], reply_markup=reply_markup
     )
 
+    return ConversationHandler.END
+
 
-excel_file_handler = MessageHandler()
+excel_file_handler = MessageHandler(
+    filters.Document.MimeType(EXCEL_MIME) & filters.ChatType.PRIVATE, excel_file
+)
diff --git a/kipubot/handlers/_graph_handlers.py b/kipubot/handlers/_graph_handler.py
similarity index 64%
rename from kipubot/handlers/_graph_handlers.py
rename to kipubot/handlers/_graph_handler.py
index 01c0f8b..afecdcd 100644
--- a/kipubot/handlers/_graph_handlers.py
+++ b/kipubot/handlers/_graph_handler.py
@@ -1,5 +1,3 @@
-from enum import Enum
-
 import psycopg.errors as pserrors
 from telegram import Update
 from telegram.ext import CommandHandler, ContextTypes, filters
@@ -8,14 +6,16 @@
 from kipubot.errors import NoEntriesError, NoRaffleError
 from kipubot.utils import generate_expected, generate_graph
 
-
-class GraphType(Enum):
-    EXPECTED = "expected"
-    GRAPH = "graph"
+GRAPH_TYPE = dict(
+    expected="expected",
+    odotusarvo="expected",
+    graph="graph",
+    kuvaaja="graph",
+)
 
 
-def get_graph_img(graph_type: GraphType) -> str:
-    if graph_type == GraphType.EXPECTED:
+def get_graph_img(graph_type: str) -> str:
+    if graph_type == "expected":
         return "expected.png"
 
     return "graph.png"
@@ -24,14 +24,25 @@ def get_graph_img(graph_type: GraphType) -> str:
 async def graph(
     update: Update,
     _context: ContextTypes.DEFAULT_TYPE,
-    graph_type: GraphType = GraphType.GRAPH,
 ) -> None:
+    if (
+        not update.effective_chat
+        or not update.effective_user
+        or not update.message
+        or not update.message.text
+    ):
+        return None
+
     chat_id = update.effective_chat.id
-    chat_title = update.effective_chat.title
+    chat_title = (
+        update.effective_chat.title if update.effective_chat.title else "untitled chat"
+    )
+    graph_type_text = update.message.text[1::]
+    graph_type = GRAPH_TYPE[graph_type_text]
     graph_path = f"data/{chat_id}/{get_graph_img(graph_type)}"
 
     try:
-        if graph_type == GraphType.EXPECTED:
+        if graph_type == "expected":
             generate_expected(graph_path, chat_id, chat_title)
         else:
             generate_graph(graph_path, chat_id, chat_title)
@@ -54,10 +65,6 @@ async def graph(
         await update.message.reply_text(STRINGS["no_data"] % {"chat_title": chat_title})
 
 
-graph_handler = CommandHandler(["kuvaaja", "graph"], graph, ~filters.ChatType.PRIVATE)
-
-expected_value_handler = CommandHandler(
-    ["odotusarvo", "expected"],
-    lambda u, c: graph(u, c, graph_type=GraphType.EXPECTED),
-    ~filters.ChatType.PRIVATE,
+graph_handler = CommandHandler(
+    ["kuvaaja", "graph", "odotusarvo", "expected"], graph, ~filters.ChatType.PRIVATE
 )
diff --git a/kipubot/handlers/_moro_handler.py b/kipubot/handlers/_moro_handler.py
index 2eb87ea..985b608 100644
--- a/kipubot/handlers/_moro_handler.py
+++ b/kipubot/handlers/_moro_handler.py
@@ -7,6 +7,9 @@
 
 
 async def hello(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
+    if not update.effective_chat or not update.effective_user or not update.message:
+        return None
+
     chat_id = update.effective_chat.id
     user_id = update.effective_user.id
     username = update.effective_user.username
diff --git a/kipubot/handlers/_no_dm_handler.py b/kipubot/handlers/_no_dm_handler.py
index cf02ed1..bd9d408 100644
--- a/kipubot/handlers/_no_dm_handler.py
+++ b/kipubot/handlers/_no_dm_handler.py
@@ -5,6 +5,8 @@
 
 
 async def chat_only(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
+    if not update.message:
+        return None
     await update.message.reply_text(STRINGS["no_dm_warn"])
 
 
diff --git a/kipubot/handlers/_raffle_setup_handler.py b/kipubot/handlers/_raffle_setup_handler.py
index 7a9f475..a9b5627 100644
--- a/kipubot/handlers/_raffle_setup_handler.py
+++ b/kipubot/handlers/_raffle_setup_handler.py
@@ -3,13 +3,13 @@
 
 import pandas as pd
 from telegram import InlineKeyboardButton, InlineKeyboardMarkup, Update
-from telegram.ext import CallbackContext, CallbackQueryHandler, ConversationHandler
+from telegram.ext import CallbackQueryHandler, ContextTypes, ConversationHandler
 
 from kipubot.constants import STRINGS
 from kipubot.errors import NoRaffleError
 from kipubot.utils import (
     get_cur_time_hel,
-    get_raffle,
+    get_raffle_stats,
     int_price_to_str,
     is_float,
     is_int,
@@ -25,24 +25,36 @@
 # ----------------
 
 
-async def cancel_convo(update: Update, context: CallbackContext) -> int:
+async def cancel_convo(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int:
     query = update.callback_query
-    await query.message.edit_text(STRINGS["cancelled"], reply_markup=None)
-    context.user_data.clear()
+    if not query or not query.message:
+        return ConversationHandler.END
+    await query.answer(STRINGS["cancelled"])
+    await query.message.edit_text(STRINGS["cancelled"])
+    if context.user_data:
+        context.user_data.clear()
     return ConversationHandler.END
 
 
-async def convo_error(update: Update, context: CallbackContext) -> int:
+async def convo_error(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int:
     query = update.callback_query
-    await query.message.edit_text(STRINGS["unknown_error"], reply_markup=None)
-    context.user_data.clear()
+    if not query or not query.message:
+        return ConversationHandler.END
+    await query.answer(STRINGS["unknown_error"])
+    await query.message.edit_text(STRINGS["unknown_error"])
+    if context.user_data:
+        context.user_data.clear()
     return ConversationHandler.END
 
 
-async def convo_timeout(update: Update, context: CallbackContext) -> int:
+async def convo_timeout(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int:
     query = update.callback_query
-    await query.message.edit_text(STRINGS["timed_out"], reply_markup=None)
-    context.user_data.clear()
+    if not query or not query.message:
+        return ConversationHandler.END
+    await query.answer(STRINGS["timed_out"])
+    await query.message.edit_text(STRINGS["timed_out"])
+    if context.user_data:
+        context.user_data.clear()
     return ConversationHandler.END
 
 
@@ -147,8 +159,12 @@ def fee_keyboard() -> InlineKeyboardMarkup:
 # =================
 
 
-async def setup_raffle(update: Update, context: CallbackContext) -> str | int:
+async def setup_raffle(update: Update, context: ContextTypes.DEFAULT_TYPE) -> str | int:
     query = update.callback_query
+    if not query or not query.message or not query.data or context.user_data is None:
+        if query:
+            await query.answer(STRINGS["unknown_error"])
+        return ConversationHandler.END
 
     if query.data == "raffle:cancel":
         return await cancel_convo(update, context)
@@ -168,7 +184,7 @@ async def setup_raffle(update: Update, context: CallbackContext) -> str | int:
         context.user_data["raffle_chat_title"] = chat_title
 
         try:
-            get_raffle(chat_id)
+            get_raffle_stats(chat_id)
 
             msg = (
                 STRINGS["raffle_setup_base"] + STRINGS["raffle_setup_update_or_new"]
@@ -191,8 +207,12 @@ async def setup_raffle(update: Update, context: CallbackContext) -> str | int:
     return await convo_error(update, context)
 
 
-async def setup_start_date(update: Update, context: CallbackContext) -> str | None:
+async def setup_start_date(
+    update: Update, context: ContextTypes.DEFAULT_TYPE
+) -> str | int:
     query = update.callback_query
+    if not query or not query.message or not query.data or not context.user_data:
+        return ConversationHandler.END
 
     if query.data == "raffle:setup:new":
         context.user_data["raffle_start_date"] = get_cur_time_hel().floor(freq="15T")
@@ -204,7 +224,7 @@ async def setup_start_date(update: Update, context: CallbackContext) -> str | No
     ):
         diff = float(query.data.split(":")[4])
         old_date = context.user_data["raffle_start_date"]
-        new_date = old_date + pd.Timedelta(diff, unit="h")
+        new_date = old_date + pd.Timedelta(diff, unit="h")  # type: ignore
 
         context.user_data["raffle_start_date"] = new_date
 
@@ -223,11 +243,15 @@ async def setup_start_date(update: Update, context: CallbackContext) -> str | No
 
         return "raffle_setup_state:start_date"
 
-    return None
+    return ConversationHandler.END
 
 
-async def setup_end_date(update: Update, context: CallbackContext) -> str | None:
+async def setup_end_date(
+    update: Update, context: ContextTypes.DEFAULT_TYPE
+) -> str | int:
     query = update.callback_query
+    if not query or not query.message or not query.data or not context.user_data:
+        return ConversationHandler.END
 
     if query.data == "raffle:date:start:confirmed":
         context.user_data["raffle_end_date"] = context.user_data["raffle_start_date"]
@@ -235,9 +259,9 @@ async def setup_end_date(update: Update, context: CallbackContext) -> str | None
     if (
         query.data.startswith("raffle:date:end:update")
         and len(query.data.split(":")) == RAFFLE_DATE_UPDATE_DATA_LENGTH
-        and is_float(query.data.split(":")[4])
+        and is_int(query.data.split(":")[4])
     ):
-        diff = float(query.data.split(":")[4])
+        diff = int(query.data.split(":")[4])
         old_date = context.user_data["raffle_end_date"]
         new_date = old_date + pd.Timedelta(diff, unit="h")
 
@@ -272,11 +296,13 @@ async def setup_end_date(update: Update, context: CallbackContext) -> str | None
 
         return "raffle_setup_state:end_date"
 
-    return None
+    return ConversationHandler.END
 
 
-async def setup_fee(update: Update, context: CallbackContext) -> str | None:
+async def setup_fee(update: Update, context: ContextTypes.DEFAULT_TYPE) -> str | int:
     query = update.callback_query
+    if not query or not query.message or not query.data or not context.user_data:
+        return ConversationHandler.END
 
     if query.data == "raffle:date:end:confirmed":
         context.user_data["raffle_fee"] = 100
@@ -323,11 +349,20 @@ async def setup_fee(update: Update, context: CallbackContext) -> str | None:
 
         return "raffle_setup_state:fee"
 
-    return None
+    return ConversationHandler.END
 
 
-async def finish_setup(update: Update, context: CallbackContext) -> int | None:
+async def finish_setup(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int | int:
     query = update.callback_query
+    if (
+        not query
+        or not query.message
+        or not query.data
+        or not context.user_data
+        or not update.effective_chat
+        or not update.effective_user
+    ):
+        return ConversationHandler.END
     dm_id = update.effective_chat.id
 
     if query.data == "raffle:setup:old":
@@ -335,7 +370,7 @@ async def finish_setup(update: Update, context: CallbackContext) -> int | None:
         chat_id = context.user_data["raffle_chat_id"]
         dm_id = update.effective_chat.id
 
-        start_date, end_date, entry_fee, _ = get_raffle(chat_id)
+        start_date, end_date, entry_fee = get_raffle_stats(chat_id)
         excel_path = f"data/{dm_id}/data.xlsx"
         df = read_excel_to_df(excel_path, start_date, end_date)
         save_raffle(chat_id, start_date, end_date, entry_fee, df)
@@ -378,7 +413,8 @@ async def finish_setup(update: Update, context: CallbackContext) -> int | None:
             "fee": int_price_to_str(fee),
         }
 
-        await query.message.edit_text(msg, reply_markup=None)
+        await query.message.edit_text(msg)
+        await query.answer()
         await context.bot.send_message(
             chat_id,
             STRINGS["raffle_created_chat"]
@@ -391,7 +427,7 @@ async def finish_setup(update: Update, context: CallbackContext) -> int | None:
 
         return ConversationHandler.END
 
-    return None
+    return ConversationHandler.END
 
 
 raffle_setup_handler = ConversationHandler(
diff --git a/kipubot/handlers/_start_handler.py b/kipubot/handlers/_start_handler.py
index d240b1b..145ecb5 100644
--- a/kipubot/handlers/_start_handler.py
+++ b/kipubot/handlers/_start_handler.py
@@ -5,6 +5,9 @@
 
 
 async def start(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
+    if not update.message:
+        return None
+
     with open("kipubot/resources/info.png", "rb") as f:
         await update.message.reply_photo(caption=STRINGS["start_prompt"], photo=f)
 
diff --git a/kipubot/handlers/_winner_handler.py b/kipubot/handlers/_winner_handler.py
index c300bb7..9684260 100644
--- a/kipubot/handlers/_winner_handler.py
+++ b/kipubot/handlers/_winner_handler.py
@@ -24,6 +24,15 @@
 
 
 async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
+    if (
+        not update.effective_chat
+        or not update.effective_user
+        or not update.message
+        or not update.message.entities
+        or not update.message.text
+    ):
+        return None
+
     # only usable by admin, previous winner (in case of typos) and current winner
     # usage: /winner @username
     # -> set the winner to the given username
@@ -34,7 +43,7 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
 
     if len(ent) != TWO_ENTITIES or ent[1].type != MessageEntityType.MENTION:
         await update.message.reply_text(STRINGS["invalid_winner_usage"])
-        return
+        return None
 
     username = update.message.text.split(" ")[1][1:]
 
@@ -50,12 +59,12 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
             return
 
         registered_member_ids = get_registered_member_ids(chat_id)
-        registered_members = [
+        all_members = [
             await get_chat_member_opt(update.effective_chat, member_id)
             for member_id in registered_member_ids
         ]
         # drop None values
-        registered_members = [m for m in registered_members if m]
+        registered_members = [m for m in all_members if m]
         supposed_winner = [
             member for member in registered_members if member.user.username == username
         ]
diff --git a/kipubot/utils.py b/kipubot/utils.py
index fc4ee92..40072a8 100644
--- a/kipubot/utils.py
+++ b/kipubot/utils.py
@@ -1,17 +1,17 @@
 import os
 import re
-from typing import NamedTuple
+from typing import Any, NamedTuple
 
-import matplotlib.dates as mdates
-import matplotlib.pyplot as plt
+import matplotlib.dates as mdates  # type: ignore
+import matplotlib.pyplot as plt  # type: ignore
 import numpy as np
 import pandas as pd
 import pytz
-import uncertainties as unc
-import uncertainties.unumpy as unp
-from matplotlib.ticker import AutoMinorLocator
-from scipy import stats
-from scipy.optimize import curve_fit
+import uncertainties as unc  # type: ignore
+import uncertainties.unumpy as unp  # type: ignore
+from matplotlib.ticker import AutoMinorLocator  # type: ignore
+from scipy import stats  # type: ignore
+from scipy.optimize import curve_fit  # type: ignore
 from telegram import Chat, ChatMember
 from telegram.error import BadRequest
 
@@ -19,11 +19,17 @@
 from kipubot.errors import NoRaffleError
 
 
+class RaffleStatsData(NamedTuple):
+    start_date: pd.Timestamp
+    end_date: pd.Timestamp
+    entry_fee: int
+
+
 class RaffleData(NamedTuple):
     start_date: pd.Timestamp
     end_date: pd.Timestamp
     entry_fee: int
-    df: pd.DataFrame | None
+    df: pd.DataFrame
 
 
 def is_int(x: str) -> bool:
@@ -45,9 +51,11 @@ def is_float(x: str) -> bool:
 
 
 def int_price_to_str(num: int) -> str:
-    num = num / 100.0
+    float_num = num / 100.0
 
-    str_num: str = format(num, ".2f") if num >= 0 else "-" + format(-num, ".2f")
+    str_num: str = (
+        format(float_num, ".2f") if float_num >= 0 else "-" + format(-float_num, ".2f")
+    )
 
     euros, cents = str_num.split(".")
 
@@ -86,9 +94,7 @@ def preband(x, xd, yd, p, func):
     return lpb, upb
 
 
-def fit_timedata(
-    x_series: "pd.Series[np.int64]", y_series: "pd.Series[np.int64]"
-):  # pylint: disable=too-many-locals
+def fit_timedata(x_series: "pd.Series[Any]", y_series: "pd.Series[Any]"):
     # ignore the end date in curve fitting
     x = x_series.values[:-1]
     y = y_series.values[:-1]
@@ -96,7 +102,6 @@ def fit_timedata(
     def f(x, slope, intercept):
         return slope * x + intercept
 
-    # pylint: disable=unbalanced-tuple-unpacking
     popt, pcov = curve_fit(f, x, y)
 
     a, b = unc.correlated_values(popt, pcov)
@@ -115,9 +120,9 @@ def f(x, slope, intercept):
     lpb, upb = preband(px, x, y, popt, f)
 
     # convert back to dates
-    px = [pd.to_datetime(x, unit="ns") for x in px]
+    px_dates = [pd.to_datetime(x, unit="ns") for x in px]
 
-    return (px, nom, std, lpb, upb)
+    return (px_dates, nom, std, lpb, upb)
 
 
 def remove_emojis(text: str) -> str:
@@ -166,7 +171,7 @@ def read_excel_to_df(
     return df
 
 
-def get_raffle(chat_id: int, *, include_df: bool = False) -> RaffleData:
+def get_raffle_stats(chat_id: int) -> RaffleStatsData:
     query_result = db.get_raffle_data(chat_id)
 
     if query_result is None:
@@ -175,12 +180,21 @@ def get_raffle(chat_id: int, *, include_df: bool = False) -> RaffleData:
 
     _, start_date, end_date, entry_fee, dates, entries, amounts = query_result
 
-    if include_df:
-        df = pd.DataFrame(data={"date": dates, "name": entries, "amount": amounts})
-        df.set_index("date", inplace=True)
-        return RaffleData(start_date, end_date, entry_fee, df)
+    return RaffleStatsData(start_date, end_date, entry_fee)
+
+
+def get_raffle(chat_id: int) -> RaffleData:
+    query_result = db.get_raffle_data(chat_id)
+
+    if query_result is None:
+        error_text = f"No raffle found for chat {chat_id}"
+        raise NoRaffleError(error_text)
+
+    _, start_date, end_date, entry_fee, dates, entries, amounts = query_result
 
-    return RaffleData(start_date, end_date, entry_fee, None)
+    df = pd.DataFrame(data={"date": dates, "name": entries, "amount": amounts})
+    df.set_index("date", inplace=True)
+    return RaffleData(start_date, end_date, entry_fee, df)
 
 
 def get_cur_time_hel() -> pd.Timestamp:
@@ -267,7 +281,7 @@ def configure_and_save_plot(out_img_path: str) -> None:
 
 def generate_graph(out_img_path: str, chat_id: int, chat_title: str) -> None:
     # -- get raffle data --
-    raffle_data = get_raffle(chat_id, include_df=True)
+    raffle_data = get_raffle(chat_id)
 
     # -- parse and fit data --
     start_date, end_date, _, df = parse_graph(raffle_data)
@@ -307,7 +321,7 @@ def generate_graph(out_img_path: str, chat_id: int, chat_title: str) -> None:
 
 def generate_expected(out_img_path: str, chat_id: int, chat_title: str) -> None:
     # -- get raffle data --
-    raffle_data = get_raffle(chat_id, include_df=True)
+    raffle_data = get_raffle(chat_id)
 
     # -- parse and fit data --
     start_date, _, entry_fee, df = parse_expected(raffle_data)
diff --git a/poetry.lock b/poetry.lock
index b0acdf8..d44455c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -22,23 +22,34 @@ test = ["contextlib2", "coverage[toml] (>=4.5)", "hypothesis (>=4.0)", "mock (>=
 trio = ["trio (>=0.16,<0.22)"]
 
 [[package]]
-name = "attrs"
-version = "23.1.0"
-description = "Classes Without Boilerplate"
-category = "dev"
+name = "apscheduler"
+version = "3.10.1"
+description = "In-process task scheduler with Cron-like capabilities"
+category = "main"
 optional = false
-python-versions = ">=3.7"
+python-versions = ">=3.6"
 files = [
-    {file = "attrs-23.1.0-py3-none-any.whl", hash = "sha256:1f28b4522cdc2fb4256ac1a020c78acf9cba2c6b461ccd2c126f3aa8e8335d04"},
-    {file = "attrs-23.1.0.tar.gz", hash = "sha256:6279836d581513a26f1bf235f9acd333bc9115683f14f7e8fae46c98fc50e015"},
+    {file = "APScheduler-3.10.1-py3-none-any.whl", hash = "sha256:e813ad5ada7aff36fb08cdda746b520531eaac7757832abc204868ba78e0c8f6"},
+    {file = "APScheduler-3.10.1.tar.gz", hash = "sha256:0293937d8f6051a0f493359440c1a1b93e882c57daf0197afeff0e727777b96e"},
 ]
 
+[package.dependencies]
+pytz = "*"
+setuptools = ">=0.7"
+six = ">=1.4.0"
+tzlocal = ">=2.0,<3.0.0 || >=4.0.0"
+
 [package.extras]
-cov = ["attrs[tests]", "coverage[toml] (>=5.3)"]
-dev = ["attrs[docs,tests]", "pre-commit"]
-docs = ["furo", "myst-parser", "sphinx", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier", "zope-interface"]
-tests = ["attrs[tests-no-zope]", "zope-interface"]
-tests-no-zope = ["cloudpickle", "hypothesis", "mypy (>=1.1.1)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
+doc = ["sphinx", "sphinx-rtd-theme"]
+gevent = ["gevent"]
+mongodb = ["pymongo (>=3.0)"]
+redis = ["redis (>=3.0)"]
+rethinkdb = ["rethinkdb (>=2.4.0)"]
+sqlalchemy = ["sqlalchemy (>=1.4)"]
+testing = ["pytest", "pytest-asyncio", "pytest-cov", "pytest-tornado5"]
+tornado = ["tornado (>=4.3)"]
+twisted = ["twisted"]
+zookeeper = ["kazoo"]
 
 [[package]]
 name = "black"
@@ -349,21 +360,6 @@ files = [
     {file = "idna-3.4.tar.gz", hash = "sha256:814f528e8dead7d329833b91c5faa87d60bf71824cd12a7530b5526063d02cb4"},
 ]
 
-[[package]]
-name = "importlab"
-version = "0.8"
-description = "A library to calculate python dependency graphs."
-category = "dev"
-optional = false
-python-versions = ">=3.6.0"
-files = [
-    {file = "importlab-0.8-py2.py3-none-any.whl", hash = "sha256:a009ccde7b549b16f3e6b034fea748febc8d45ded9e8a09370a8f994acfda25b"},
-    {file = "importlab-0.8.tar.gz", hash = "sha256:b24b3aac3b073966ae42fb2d3a7764f3377b30bb72c0d411fe29134cc9276e86"},
-]
-
-[package.dependencies]
-networkx = ">=2"
-
 [[package]]
 name = "iniconfig"
 version = "2.0.0"
@@ -376,24 +372,6 @@ files = [
     {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
 ]
 
-[[package]]
-name = "jinja2"
-version = "3.1.2"
-description = "A very fast and expressive template engine."
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "Jinja2-3.1.2-py3-none-any.whl", hash = "sha256:6088930bfe239f0e6710546ab9c19c9ef35e29792895fed6e6e31a023a182a61"},
-    {file = "Jinja2-3.1.2.tar.gz", hash = "sha256:31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852"},
-]
-
-[package.dependencies]
-MarkupSafe = ">=2.0"
-
-[package.extras]
-i18n = ["Babel (>=2.7)"]
-
 [[package]]
 name = "kiwisolver"
 version = "1.4.4"
@@ -472,114 +450,6 @@ files = [
     {file = "kiwisolver-1.4.4.tar.gz", hash = "sha256:d41997519fcba4a1e46eb4a2fe31bc12f0ff957b2b81bac28db24744f333e955"},
 ]
 
-[[package]]
-name = "libcst"
-version = "0.4.9"
-description = "A concrete syntax tree with AST-like properties for Python 3.5, 3.6, 3.7, 3.8, 3.9, and 3.10 programs."
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "libcst-0.4.9-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:4f9e42085c403e22201e5c41e707ef73e4ea910ad9fc67983ceee2368097f54e"},
-    {file = "libcst-0.4.9-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:1266530bf840cc40633a04feb578bb4cac1aa3aea058cc3729e24eab09a8e996"},
-    {file = "libcst-0.4.9-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:f9679177391ccb9b0cdde3185c22bf366cb672457c4b7f4031fcb3b5e739fbd6"},
-    {file = "libcst-0.4.9-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:d67bc87e0d8db9434f2ea063734938a320f541f4c6da1074001e372f840f385d"},
-    {file = "libcst-0.4.9-cp310-cp310-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:e316da5a126f2a9e1d7680f95f907b575f082a35e2f8bd5620c59b2aaaebfe0a"},
-    {file = "libcst-0.4.9-cp310-cp310-win_amd64.whl", hash = "sha256:7415569ab998a85b0fc9af3a204611ea7fadb2d719a12532c448f8fc98f5aca4"},
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 version = "1.0.0"
@@ -655,53 +572,26 @@ files = [
 ]
 
 [[package]]
-name = "networkx"
-version = "2.8.3"
-description = "Python package for creating and manipulating graphs and networks"
-category = "dev"
+name = "nptyping"
+version = "2.5.0"
+description = "Type hints for NumPy."
+category = "main"
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.7"
 files = [
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-test = ["codecov (>=2.1)", "pytest (>=7.1)", "pytest-cov (>=3.0)"]
-
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-description = "Ninja is a small build system with a focus on speed"
-category = "dev"
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-python-versions = "*"
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 [package.extras]
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+complete = ["pandas", "pandas-stubs-fork"]
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 [[package]]
 name = "numpy"
@@ -832,6 +722,21 @@ sql-other = ["SQLAlchemy (>=1.4.16)"]
 test = ["hypothesis (>=6.34.2)", "pytest (>=7.0.0)", "pytest-asyncio (>=0.17.0)", "pytest-xdist (>=2.2.0)"]
 xml = ["lxml (>=4.6.3)"]
 
+[[package]]
+name = "pandas-stubs"
+version = "2.0.0.230412"
+description = "Type annotations for pandas"
+category = "dev"
+optional = false
+python-versions = ">=3.8"
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+]
+
+[package.dependencies]
+types-pytz = ">=2022.1.1"
+
 [[package]]
 name = "pastel"
 version = "0.2.1"
@@ -1012,19 +917,57 @@ pool = ["psycopg-pool"]
 test = ["mypy (>=0.990)", "pproxy (>=2.7)", "pytest (>=6.2.5)", "pytest-asyncio (>=0.17)", "pytest-cov (>=3.0)", "pytest-randomly (>=3.5)"]
 
 [[package]]
-name = "pydot"
-version = "1.4.2"
-description = "Python interface to Graphviz's Dot"
-category = "dev"
+name = "pydantic"
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+description = "Data validation and settings management using python type hints"
+category = "main"
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 [package.dependencies]
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+[package.extras]
+dotenv = ["python-dotenv (>=0.10.4)"]
+email = ["email-validator (>=1.0.3)"]
 
 [[package]]
 name = "pyparsing"
@@ -1107,7 +1050,9 @@ files = [
 ]
 
 [package.dependencies]
+APScheduler = {version = ">=3.10.1,<3.11.0", optional = true, markers = "extra == \"job-queue\""}
 httpx = ">=0.23.3,<0.24.0"
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 [package.extras]
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@@ -1120,41 +1065,6 @@ rate-limiter = ["aiolimiter (>=1.0.0,<1.1.0)"]
 socks = ["httpx[socks]"]
 webhooks = ["tornado (>=6.2,<7.0)"]
 
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-
 [[package]]
 name = "pytz"
 version = "2023.3"
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-version = "6.0"
-description = "YAML parser and emitter for Python"
-category = "dev"
+name = "pytz-deprecation-shim"
+version = "0.1.0.post0"
+description = "Shims to make deprecation of pytz easier"
+category = "main"
 optional = false
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 ]
 
+[package.dependencies]
+tzdata = {version = "*", markers = "python_version >= \"3.6\""}
+
 [[package]]
 name = "rfc3986"
 version = "1.5.0"
@@ -1301,6 +1176,23 @@ dev = ["click", "doit (>=0.36.0)", "flake8", "mypy", "pycodestyle", "pydevtool",
 doc = ["matplotlib (>2)", "numpydoc", "pydata-sphinx-theme (==0.9.0)", "sphinx (!=4.1.0)", "sphinx-design (>=0.2.0)"]
 test = ["asv", "gmpy2", "mpmath", "pooch", "pytest", "pytest-cov", "pytest-timeout", "pytest-xdist", "scikit-umfpack", "threadpoolctl"]
 
+[[package]]
+name = "setuptools"
+version = "67.6.1"
+description = "Easily download, build, install, upgrade, and uninstall Python packages"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
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+]
+
+[package.extras]
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+testing = ["build[virtualenv]", "filelock (>=3.4.0)", "flake8 (<5)", "flake8-2020", "ini2toml[lite] (>=0.9)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "pip (>=19.1)", "pip-run (>=8.8)", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)", "pytest-perf", "pytest-timeout", "pytest-xdist", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
+testing-integration = ["build[virtualenv]", "filelock (>=3.4.0)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "pytest", "pytest-enabler", "pytest-xdist", "tomli", "virtualenv (>=13.0.0)", "wheel"]
+
 [[package]]
 name = "six"
 version = "1.16.0"
@@ -1326,71 +1218,104 @@ files = [
 ]
 
 [[package]]
-name = "tabulate"
-version = "0.9.0"
-description = "Pretty-print tabular data"
+name = "tomli"
+version = "2.0.1"
+description = "A lil' TOML parser"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
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 ]
 
-[package.extras]
-widechars = ["wcwidth"]
-
 [[package]]
-name = "toml"
-version = "0.10.2"
-description = "Python Library for Tom's Obvious, Minimal Language"
+name = "types-cachetools"
+version = "5.3.0.5"
+description = "Typing stubs for cachetools"
 category = "dev"
 optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
+python-versions = "*"
 files = [
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 [[package]]
-name = "tomli"
-version = "2.0.1"
-description = "A lil' TOML parser"
+name = "types-docutils"
+version = "0.19.1.7"
+description = "Typing stubs for docutils"
 category = "dev"
 optional = false
-python-versions = ">=3.7"
+python-versions = "*"
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 ]
 
 [[package]]
-name = "typing-extensions"
-version = "4.5.0"
-description = "Backported and Experimental Type Hints for Python 3.7+"
-category = "main"
+name = "types-openpyxl"
+version = "3.1.0.4"
+description = "Typing stubs for openpyxl"
+category = "dev"
 optional = false
-python-versions = ">=3.7"
+python-versions = "*"
 files = [
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 [[package]]
-name = "typing-inspect"
-version = "0.8.0"
-description = "Runtime inspection utilities for typing module."
+name = "types-pygments"
+version = "2.15.0.0"
+description = "Typing stubs for Pygments"
 category = "dev"
 optional = false
 python-versions = "*"
 files = [
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 ]
 
 [package.dependencies]
-mypy-extensions = ">=0.3.0"
-typing-extensions = ">=3.7.4"
+types-docutils = "*"
+types-setuptools = "*"
+
+[[package]]
+name = "types-pytz"
+version = "2023.3.0.0"
+description = "Typing stubs for pytz"
+category = "dev"
+optional = false
+python-versions = "*"
+files = [
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+]
+
+[[package]]
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+version = "67.6.0.7"
+description = "Typing stubs for setuptools"
+category = "dev"
+optional = false
+python-versions = "*"
+files = [
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+]
+
+[[package]]
+name = "typing-extensions"
+version = "4.5.0"
+description = "Backported and Experimental Type Hints for Python 3.7+"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
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+]
 
 [[package]]
 name = "tzdata"
@@ -1404,6 +1329,25 @@ files = [
     {file = "tzdata-2023.3.tar.gz", hash = "sha256:11ef1e08e54acb0d4f95bdb1be05da659673de4acbd21bf9c69e94cc5e907a3a"},
 ]
 
+[[package]]
+name = "tzlocal"
+version = "4.3"
+description = "tzinfo object for the local timezone"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "tzlocal-4.3-py3-none-any.whl", hash = "sha256:b44c4388f3d34f25862cfbb387578a4d70fec417649da694a132f628a23367e2"},
+    {file = "tzlocal-4.3.tar.gz", hash = "sha256:3f21d09e1b2aa9f2dacca12da240ca37de3ba5237a93addfd6d593afe9073355"},
+]
+
+[package.dependencies]
+pytz-deprecation-shim = "*"
+tzdata = {version = "*", markers = "platform_system == \"Windows\""}
+
+[package.extras]
+devenv = ["black", "check-manifest", "flake8", "pyroma", "pytest (>=4.3)", "pytest-cov", "pytest-mock (>=3.3)", "zest.releaser"]
+
 [[package]]
 name = "uncertainties"
 version = "3.1.7"
@@ -1463,4 +1407,4 @@ anyio = ">=3.0.0"
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10,<3.11"
-content-hash = "24472122b86803712adcc56dc8e2cee99ddf221affbddb501f9a7c16c025a1d8"
+content-hash = "c0d4b5336103b97443f41b0aac4ace631aa2cedabeeae14fa86da47babaa3b17"
diff --git a/pyproject.toml b/pyproject.toml
index eab0287..24cae48 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ dev = "watchfiles 'poetry run  poe start' kipubot"
 test = "pytest"
 test_hot = "watchfiles 'pytest' kipubot tests"
 lint = "ruff ."
-type = "pytype ."
+type = "mypy ."
 format = [{ cmd = "black ." }, { cmd = "ruff . --fix" }]
 
 [tool.poetry.dependencies]
@@ -25,19 +25,25 @@ pandas = "^2.0.0"
 matplotlib = "^3.7.1"
 scipy = "^1.10.1"
 python-dotenv = "^1.0.0"
-python-telegram-bot = "^20.2"
+python-telegram-bot = { extras = ["job-queue"], version = "^20.2" }
 psycopg = "^3.1.8"
 openpyxl = "^3.1.2"
 pytz = "^2023.3"
 uncertainties = "^3.1.7"
+pydantic = "^1.10.7"
+nptyping = "^2.5.0"
 
 [tool.poetry.group.dev.dependencies]
 watchfiles = "^0.19.0"
 ruff = "^0.0.261"
-pytype = "^2023.4.11"
 pytest = "^7.3.1"
 black = "^23.3.0"
 poethepoet = "^0.19.0"
+mypy = "^1.2.0"
+pandas-stubs = "^2.0.0.230412"
+types-pygments = "^2.15.0.0"
+types-cachetools = "^5.3.0.5"
+types-openpyxl = "^3.1.0.4"
 
 [build-system]
 requires = ["poetry-core"]
@@ -160,3 +166,22 @@ max-complexity = 10
 
 [tool.ruff.per-file-ignores]
 "tests/*" = ["S101"]
+
+[tool.mypy]
+python_version = "3.10"
+plugins = ["pydantic.mypy"]
+
+warn_redundant_casts = true
+warn_unused_ignores = true
+disallow_any_generics = true
+check_untyped_defs = true
+no_implicit_reexport = true
+
+# hopefully switch to strict in the future
+# disallow_untyped_defs = true
+
+[tool.pydantic-mypy]
+init_forbid_extra = true
+init_typed = true
+warn_required_dynamic_aliases = true
+warn_untyped_fields = true
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 18bcf8f..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,2 +0,0 @@
-[pytype]
-inputs = kipubot
\ No newline at end of file
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 6da6149..6d606bf 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,11 +1,9 @@
 #!/usr/bin/env python3
 
-from datetime import datetime
-
 import pytest
+from pandas import Timestamp
 from pandas.testing import assert_frame_equal
 
-from kipubot import DATABASE_URL
 from kipubot.db import _init_db, delete_chat, delete_raffle_data, save_chat_or_ignore
 from kipubot.utils import (
     get_raffle,
@@ -90,19 +88,19 @@ def test_remove_emojis(self):
 class TestGraphSave:
     @pytest.fixture(autouse=True)
     def create_chat(self):
-        _init_db(DATABASE_URL)
+        _init_db()
         save_chat_or_ignore(1, "testing", [1])
         yield 1
         delete_chat(1)
 
     def test_graph_save(self):
         file_path = "tests/example_data/example_1.xlsx"
-        start_date = datetime.fromisoformat("2022-08-01 03:15:00")
-        end_date = datetime.fromisoformat("2022-08-12 03:15:00")
+        start_date = Timestamp("2022-08-01 03:15:00")
+        end_date = Timestamp("2022-08-12 03:15:00")
         entry_fee = 1
         df = read_excel_to_df(file_path, start_date, end_date)
         save_raffle(1, start_date, end_date, entry_fee, df)
-        raffle_from_db = get_raffle(1, include_df=True)
+        raffle_from_db = get_raffle(1)
         delete_raffle_data(1)
         assert start_date == raffle_from_db.start_date
         assert end_date == raffle_from_db.end_date

From d5b9692a01022c5f8aa7059b092b44bd50dfa7e9 Mon Sep 17 00:00:00 2001
From: Mikael Siidorow 
Date: Mon, 17 Apr 2023 18:07:28 +0300
Subject: [PATCH 4/8] perf: use connection pool

---
 kipubot/bot.py      |  5 ++-
 kipubot/db.py       | 76 ++++++++++++++++++++++-----------------------
 poetry.lock         | 17 +++++++++-
 pyproject.toml      |  1 +
 tests/test_utils.py |  4 +--
 5 files changed, 58 insertions(+), 45 deletions(-)

diff --git a/kipubot/bot.py b/kipubot/bot.py
index 710747e..0d5b0b9 100644
--- a/kipubot/bot.py
+++ b/kipubot/bot.py
@@ -3,7 +3,7 @@
 from telegram.ext import ApplicationBuilder, PicklePersistence
 
 from kipubot import config
-from kipubot.db import _init_db
+from kipubot.db import init_db
 from kipubot.handlers import (
     bot_added_handler,
     error_handler,
@@ -19,8 +19,7 @@
 
 def main() -> None:
     # INITIALIZE DB AND CREATE TABLES IF THEY DON'T EXIST
-    _init_db()
-
+    init_db()
     persistence = PicklePersistence(filepath="data/.pkl")
     app = ApplicationBuilder().token(config.BOT_TOKEN).persistence(persistence).build()
 
diff --git a/kipubot/db.py b/kipubot/db.py
index 58a14d2..7ec8d63 100644
--- a/kipubot/db.py
+++ b/kipubot/db.py
@@ -1,43 +1,37 @@
 import logging
-from collections.abc import Generator
 from contextlib import contextmanager, suppress
 
-import psycopg
 import psycopg.errors as pserrors
 from pandas import DataFrame, Timestamp
-from psycopg.rows import TupleRow
+from psycopg_pool import ConnectionPool
 
 from kipubot import config
 from kipubot.errors import AlreadyRegisteredError
 
-# LOGGER
+_pool = ConnectionPool(
+    config.DATABASE_URL,
+)
+
 _logger = logging.getLogger(__name__)
 
 
-# DB CONNECTION
 @contextmanager
-def get_pg_conn() -> Generator[psycopg.Connection[TupleRow], None, None]:
-    """
-    Get a connection to the postgres database.
-    """
-    _logger.info("Connecting to DB...")
-    conn = psycopg.connect(config.DATABASE_URL)
-    _logger.info("Connected!")
-
+def logging_connection():
+    """Log errors while connecting to the database"""
     try:
-        yield conn
-    except pserrors.Error:
-        _logger.exception("Unknown error during database operation!")
-        conn.rollback()
+        _logger.info("Getting db connection...")
+        with _pool.connection() as conn:
+            yield conn
+    except Exception:
+        _logger.exception("Error while getting connection!")
     else:
-        _logger.info("Committing changes...")
-        conn.commit()
+        _logger.info("Connection to database successful!")
     finally:
-        conn.close()
+        _logger.info("Freeing database connection...")
 
 
-def _init_db() -> None:
-    with get_pg_conn() as conn:
+def init_db():
+    with logging_connection() as conn:
         conn.execute(
             """CREATE TABLE IF NOT EXISTS chat (
                         chat_id BIGINT PRIMARY KEY,
@@ -76,7 +70,7 @@ def _init_db() -> None:
 
 
 def get_registered_member_ids(chat_id: int) -> list[int]:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         return [
             row[0]
             for row in conn.execute(
@@ -89,7 +83,7 @@ def get_registered_member_ids(chat_id: int) -> list[int]:
 
 
 def get_admin_ids(chat_id: int) -> list[int]:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         data = conn.execute(
             "SELECT admins FROM chat WHERE chat_id = %s", (chat_id,)
         ).fetchone()
@@ -97,7 +91,7 @@ def get_admin_ids(chat_id: int) -> list[int]:
 
 
 def get_prev_winner_ids(chat_id: int) -> list[int]:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         data = conn.execute(
             "SELECT prev_winners FROM chat WHERE chat_id = %s", (chat_id,)
         ).fetchone()
@@ -105,7 +99,7 @@ def get_prev_winner_ids(chat_id: int) -> list[int]:
 
 
 def get_winner_id(chat_id: int) -> int:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         data = conn.execute(
             "SELECT cur_winner FROM chat WHERE chat_id = %s", (chat_id,)
         ).fetchone()
@@ -113,8 +107,8 @@ def get_winner_id(chat_id: int) -> int:
 
 
 def get_chats_where_winner(user_id: int) -> list[tuple[int, str]]:
-    with get_pg_conn() as conn:
-        return conn.execute(  # type: ignore
+    with logging_connection() as conn:
+        return conn.execute(
             """SELECT c.chat_id, c.title
                 FROM chat AS c, in_chat as i
                 WHERE i.user_id = %(id)s
@@ -127,8 +121,8 @@ def get_chats_where_winner(user_id: int) -> list[tuple[int, str]]:
 def get_raffle_data(
     chat_id: int,
 ) -> tuple[int, Timestamp, Timestamp, int, list[Timestamp], list[str], list[int]]:
-    with get_pg_conn() as conn:
-        return conn.execute(  # type: ignore
+    with logging_connection() as conn:
+        return conn.execute(
             "SELECT * FROM raffle WHERE chat_id = %s", [chat_id]
         ).fetchone()
 
@@ -144,7 +138,7 @@ def save_raffle_data(
     entries = df["name"].tolist()
     amounts = df["amount"].tolist()
 
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         conn.execute(
             """INSERT INTO raffle
                         VALUES (%s, %s, %s, %s, %s, %s, %s)
@@ -163,13 +157,13 @@ def save_raffle_data(
 
 
 def delete_raffle_data(chat_id: int):
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         conn.execute("""DELETE FROM raffle where chat_id=%s""", (chat_id,))
         conn.commit()
 
 
 def save_user_or_ignore(user_id: int) -> None:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         conn.execute(
             """INSERT INTO chat_user
                     VALUES (%s)
@@ -180,7 +174,7 @@ def save_user_or_ignore(user_id: int) -> None:
 
 
 def save_chat_or_ignore(chat_id: int, title: str, admin_ids: list[int]) -> None:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         conn.execute(
             """INSERT INTO chat (chat_id, title, admins)
                                 VALUES (%s, %s, %s)
@@ -191,7 +185,7 @@ def save_chat_or_ignore(chat_id: int, title: str, admin_ids: list[int]) -> None:
 
 
 def delete_chat(chat_id: int):
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         conn.execute("""DELETE FROM chat where chat_id=%s""", (chat_id,))
         conn.commit()
 
@@ -199,7 +193,7 @@ def delete_chat(chat_id: int):
 def register_user(chat_id: int, user_id: int) -> None:
     save_user_or_ignore(user_id)
 
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         try:
             conn.execute(
                 """INSERT INTO in_chat(user_id, chat_id)
@@ -219,7 +213,7 @@ def register_user_or_ignore(chat_id: int, user_id: int) -> None:
 
 
 def admin_cycle_winners(winner_id: int, chat_id: int) -> None:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         conn.execute(
             """UPDATE chat
                 SET prev_winners = array_append(prev_winners, cur_winner),
@@ -231,7 +225,7 @@ def admin_cycle_winners(winner_id: int, chat_id: int) -> None:
 
 
 def replace_cur_winner(winner_id: int, chat_id: int) -> None:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         conn.execute(
             """UPDATE chat
                                 SET cur_winner=%s
@@ -241,7 +235,7 @@ def replace_cur_winner(winner_id: int, chat_id: int) -> None:
 
 
 def cycle_winners(user_id: int, winner_id: int, chat_id: int) -> None:
-    with get_pg_conn() as conn:
+    with logging_connection() as conn:
         conn.execute(
             """UPDATE chat
                                 SET prev_winners=array_append(prev_winners, %s),
@@ -249,3 +243,7 @@ def cycle_winners(user_id: int, winner_id: int, chat_id: int) -> None:
                                 WHERE chat_id=%s""",
             (user_id, winner_id, chat_id),
         )
+
+
+if __name__ == "__main__":
+    init_db()
diff --git a/poetry.lock b/poetry.lock
index d44455c..6858aa5 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -916,6 +916,21 @@ docs = ["Sphinx (>=5.0)", "furo (==2022.6.21)", "sphinx-autobuild (>=2021.3.14)"
 pool = ["psycopg-pool"]
 test = ["mypy (>=0.990)", "pproxy (>=2.7)", "pytest (>=6.2.5)", "pytest-asyncio (>=0.17)", "pytest-cov (>=3.0)", "pytest-randomly (>=3.5)"]
 
+[[package]]
+name = "psycopg-pool"
+version = "3.1.7"
+description = "Connection Pool for Psycopg"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "psycopg-pool-3.1.7.tar.gz", hash = "sha256:d02741dc48303495f4021900630442af87d6b1c3bfd1a3ece54cc11aa43d7dde"},
+    {file = "psycopg_pool-3.1.7-py3-none-any.whl", hash = "sha256:ca1f2c366b5910acd400e16e812912827c57836af638c1717ba495111d22073b"},
+]
+
+[package.dependencies]
+typing-extensions = ">=3.10"
+
 [[package]]
 name = "pydantic"
 version = "1.10.7"
@@ -1407,4 +1422,4 @@ anyio = ">=3.0.0"
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10,<3.11"
-content-hash = "c0d4b5336103b97443f41b0aac4ace631aa2cedabeeae14fa86da47babaa3b17"
+content-hash = "b369103fed65e044dc5fb20fb78c46cfd2c262f2da7b5c2258cff38ad9784f00"
diff --git a/pyproject.toml b/pyproject.toml
index 24cae48..8ac07de 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,6 +32,7 @@ pytz = "^2023.3"
 uncertainties = "^3.1.7"
 pydantic = "^1.10.7"
 nptyping = "^2.5.0"
+psycopg-pool = "^3.1.7"
 
 [tool.poetry.group.dev.dependencies]
 watchfiles = "^0.19.0"
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 6d606bf..b4bc746 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -4,7 +4,7 @@
 from pandas import Timestamp
 from pandas.testing import assert_frame_equal
 
-from kipubot.db import _init_db, delete_chat, delete_raffle_data, save_chat_or_ignore
+from kipubot.db import delete_chat, delete_raffle_data, init_db, save_chat_or_ignore
 from kipubot.utils import (
     get_raffle,
     int_price_to_str,
@@ -88,7 +88,7 @@ def test_remove_emojis(self):
 class TestGraphSave:
     @pytest.fixture(autouse=True)
     def create_chat(self):
-        _init_db()
+        init_db()
         save_chat_or_ignore(1, "testing", [1])
         yield 1
         delete_chat(1)

From d60b46e8f66216c745cb765a2fe1f0bdebc1c6d1 Mon Sep 17 00:00:00 2001
From: Mikael Siidorow 
Date: Mon, 17 Apr 2023 18:37:02 +0300
Subject: [PATCH 5/8] docs: enforce required docstrings

---
 kipubot/__init__.py          |  6 ++++++
 kipubot/__main__.py          |  1 +
 kipubot/bot.py               |  3 +++
 kipubot/constants.py         |  7 ++++++-
 kipubot/db.py                | 27 ++++++++++++++++++++++++++-
 kipubot/errors.py            |  9 +++++++++
 kipubot/handlers/__init__.py |  2 ++
 kipubot/utils.py             | 27 ++++++++++++++++++++++++++-
 pyproject.toml               |  5 +++--
 9 files changed, 82 insertions(+), 5 deletions(-)

diff --git a/kipubot/__init__.py b/kipubot/__init__.py
index 6a9530d..ea50a04 100644
--- a/kipubot/__init__.py
+++ b/kipubot/__init__.py
@@ -1,3 +1,5 @@
+"""Kipubot - A Telegram bot for graphing friday raffles."""
+
 import logging
 import os
 
@@ -11,11 +13,15 @@
 
 # ENV CONFIG
 class Settings(BaseSettings):
+    """Configuration for the bot."""
+
     BOT_TOKEN: str
     DATABASE_URL: str
     DEVELOPER_CHAT_ID: str | None = None
 
     class Config:
+        """Environment variables to load from."""
+
         env_file = ".env"
         env_file_encoding = "utf-8"
 
diff --git a/kipubot/__main__.py b/kipubot/__main__.py
index 93ccc6f..9905d23 100644
--- a/kipubot/__main__.py
+++ b/kipubot/__main__.py
@@ -1,3 +1,4 @@
+"""Entrypoint for the kipubot package."""
 from kipubot.bot import main
 
 main()
diff --git a/kipubot/bot.py b/kipubot/bot.py
index 0d5b0b9..1904d8d 100644
--- a/kipubot/bot.py
+++ b/kipubot/bot.py
@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
 
+"""Main kipubot file for running the bot."""
+
 from telegram.ext import ApplicationBuilder, PicklePersistence
 
 from kipubot import config
@@ -18,6 +20,7 @@
 
 
 def main() -> None:
+    """Run the bot with all handlers."""
     # INITIALIZE DB AND CREATE TABLES IF THEY DON'T EXIST
     init_db()
     persistence = PicklePersistence(filepath="data/.pkl")
diff --git a/kipubot/constants.py b/kipubot/constants.py
index 12ae209..af2d3df 100644
--- a/kipubot/constants.py
+++ b/kipubot/constants.py
@@ -1,4 +1,9 @@
-# CONSTANTS
+"""Constants used in the bot.
+
+- EXCEL_MIME: The MIME type of the Excel file sent by MobilePay.
+- STRINGS: A dictionary of strings used in the bot.
+"""
+
 EXCEL_MIME = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
 
 STRINGS = {
diff --git a/kipubot/db.py b/kipubot/db.py
index 7ec8d63..a26ea06 100644
--- a/kipubot/db.py
+++ b/kipubot/db.py
@@ -1,3 +1,5 @@
+"""Database connection and queries for Kipubot."""
+
 import logging
 from contextlib import contextmanager, suppress
 
@@ -17,7 +19,7 @@
 
 @contextmanager
 def logging_connection():
-    """Log errors while connecting to the database"""
+    """Log errors while connecting to the database."""
     try:
         _logger.info("Getting db connection...")
         with _pool.connection() as conn:
@@ -31,6 +33,7 @@ def logging_connection():
 
 
 def init_db():
+    """Initialize the database tables if they don't exist."""
     with logging_connection() as conn:
         conn.execute(
             """CREATE TABLE IF NOT EXISTS chat (
@@ -70,6 +73,7 @@ def init_db():
 
 
 def get_registered_member_ids(chat_id: int) -> list[int]:
+    """Get a list of all registered user IDs in a chat."""
     with logging_connection() as conn:
         return [
             row[0]
@@ -83,6 +87,7 @@ def get_registered_member_ids(chat_id: int) -> list[int]:
 
 
 def get_admin_ids(chat_id: int) -> list[int]:
+    """Get a list of all admin IDs in a chat."""
     with logging_connection() as conn:
         data = conn.execute(
             "SELECT admins FROM chat WHERE chat_id = %s", (chat_id,)
@@ -91,6 +96,7 @@ def get_admin_ids(chat_id: int) -> list[int]:
 
 
 def get_prev_winner_ids(chat_id: int) -> list[int]:
+    """Get a list of all previous winner IDs in a chat."""
     with logging_connection() as conn:
         data = conn.execute(
             "SELECT prev_winners FROM chat WHERE chat_id = %s", (chat_id,)
@@ -99,6 +105,7 @@ def get_prev_winner_ids(chat_id: int) -> list[int]:
 
 
 def get_winner_id(chat_id: int) -> int:
+    """Get the current winner ID in a chat."""
     with logging_connection() as conn:
         data = conn.execute(
             "SELECT cur_winner FROM chat WHERE chat_id = %s", (chat_id,)
@@ -107,6 +114,7 @@ def get_winner_id(chat_id: int) -> int:
 
 
 def get_chats_where_winner(user_id: int) -> list[tuple[int, str]]:
+    """Get a list of all chats where a user is the current winner."""
     with logging_connection() as conn:
         return conn.execute(
             """SELECT c.chat_id, c.title
@@ -121,6 +129,7 @@ def get_chats_where_winner(user_id: int) -> list[tuple[int, str]]:
 def get_raffle_data(
     chat_id: int,
 ) -> tuple[int, Timestamp, Timestamp, int, list[Timestamp], list[str], list[int]]:
+    """Get the raffle data for a chat."""
     with logging_connection() as conn:
         return conn.execute(
             "SELECT * FROM raffle WHERE chat_id = %s", [chat_id]
@@ -134,6 +143,7 @@ def save_raffle_data(
     entry_fee: int,
     df: DataFrame,
 ) -> None:
+    """Save the raffle data for a chat."""
     dates = df["date"].tolist()
     entries = df["name"].tolist()
     amounts = df["amount"].tolist()
@@ -157,12 +167,14 @@ def save_raffle_data(
 
 
 def delete_raffle_data(chat_id: int):
+    """Delete the raffle data for a chat."""
     with logging_connection() as conn:
         conn.execute("""DELETE FROM raffle where chat_id=%s""", (chat_id,))
         conn.commit()
 
 
 def save_user_or_ignore(user_id: int) -> None:
+    """Save a user to the database, or ignore if already exists."""
     with logging_connection() as conn:
         conn.execute(
             """INSERT INTO chat_user
@@ -174,6 +186,7 @@ def save_user_or_ignore(user_id: int) -> None:
 
 
 def save_chat_or_ignore(chat_id: int, title: str, admin_ids: list[int]) -> None:
+    """Save a chat to the database, or ignore if already exists."""
     with logging_connection() as conn:
         conn.execute(
             """INSERT INTO chat (chat_id, title, admins)
@@ -185,12 +198,14 @@ def save_chat_or_ignore(chat_id: int, title: str, admin_ids: list[int]) -> None:
 
 
 def delete_chat(chat_id: int):
+    """Delete a chat from the database."""
     with logging_connection() as conn:
         conn.execute("""DELETE FROM chat where chat_id=%s""", (chat_id,))
         conn.commit()
 
 
 def register_user(chat_id: int, user_id: int) -> None:
+    """Register a user in a chat."""
     save_user_or_ignore(user_id)
 
     with logging_connection() as conn:
@@ -208,11 +223,16 @@ def register_user(chat_id: int, user_id: int) -> None:
 
 
 def register_user_or_ignore(chat_id: int, user_id: int) -> None:
+    """Register a user in a chat, or ignore if already registered."""
     with suppress(AlreadyRegisteredError):
         register_user(chat_id, user_id)
 
 
 def admin_cycle_winners(winner_id: int, chat_id: int) -> None:
+    """Admin set current winner to a specific user.
+
+    Move the previous winner to the list of previous winners.
+    """
     with logging_connection() as conn:
         conn.execute(
             """UPDATE chat
@@ -225,6 +245,7 @@ def admin_cycle_winners(winner_id: int, chat_id: int) -> None:
 
 
 def replace_cur_winner(winner_id: int, chat_id: int) -> None:
+    """Replace the current winner in a chat."""
     with logging_connection() as conn:
         conn.execute(
             """UPDATE chat
@@ -235,6 +256,10 @@ def replace_cur_winner(winner_id: int, chat_id: int) -> None:
 
 
 def cycle_winners(user_id: int, winner_id: int, chat_id: int) -> None:
+    """Set the current winner in a chat.
+
+    Move the previous winner to the list of previous winners.
+    """
     with logging_connection() as conn:
         conn.execute(
             """UPDATE chat
diff --git a/kipubot/errors.py b/kipubot/errors.py
index 9ffa16f..1cb3993 100644
--- a/kipubot/errors.py
+++ b/kipubot/errors.py
@@ -1,10 +1,19 @@
+"""Custom exceptions for Kipubot."""
+
+
 class NoEntriesError(Exception):
+    """Raised when there are no entries in a raffle."""
+
     pass
 
 
 class NoRaffleError(Exception):
+    """Raised when there is no raffle in a chat."""
+
     pass
 
 
 class AlreadyRegisteredError(Exception):
+    """Raised when a user tries to register twice."""
+
     pass
diff --git a/kipubot/handlers/__init__.py b/kipubot/handlers/__init__.py
index 435b0dc..e65c1bf 100644
--- a/kipubot/handlers/__init__.py
+++ b/kipubot/handlers/__init__.py
@@ -1,3 +1,5 @@
+"""Handlers for Kipubot."""
+
 __all__ = (
     "start_handler",
     "moro_handler",
diff --git a/kipubot/utils.py b/kipubot/utils.py
index 40072a8..72fb91e 100644
--- a/kipubot/utils.py
+++ b/kipubot/utils.py
@@ -1,3 +1,5 @@
+"""Utility functions for Kipubot."""
+
 import os
 import re
 from typing import Any, NamedTuple
@@ -20,12 +22,16 @@
 
 
 class RaffleStatsData(NamedTuple):
+    """Data for raffle stats without entry data."""
+
     start_date: pd.Timestamp
     end_date: pd.Timestamp
     entry_fee: int
 
 
 class RaffleData(NamedTuple):
+    """Data for raffle stats with entry data."""
+
     start_date: pd.Timestamp
     end_date: pd.Timestamp
     entry_fee: int
@@ -33,6 +39,7 @@ class RaffleData(NamedTuple):
 
 
 def is_int(x: str) -> bool:
+    """Safely check if a string is an integer."""
     try:
         int(x)
     except ValueError:
@@ -42,6 +49,7 @@ def is_int(x: str) -> bool:
 
 
 def is_float(x: str) -> bool:
+    """Safely check if a string is a float."""
     try:
         float(x)
     except ValueError:
@@ -51,6 +59,7 @@ def is_float(x: str) -> bool:
 
 
 def int_price_to_str(num: int) -> str:
+    """Format an integer price to a string."""
     float_num = num / 100.0
 
     str_num: str = (
@@ -69,6 +78,7 @@ def int_price_to_str(num: int) -> str:
 
 
 async def get_chat_member_opt(chat: Chat, member_id: int) -> ChatMember | None:
+    """Get a chat member, or None if the user is not in the chat."""
     try:
         return await chat.get_member(member_id)
     except BadRequest as e:
@@ -78,6 +88,7 @@ async def get_chat_member_opt(chat: Chat, member_id: int) -> ChatMember | None:
 
 
 def preband(x, xd, yd, p, func):
+    """Calculate the prediction band for a curve fit."""
     conf = 0.95
     alpha = 1.0 - conf
     quantile = stats.t.ppf(1.0 - alpha / 2.0, xd.size - len(p))
@@ -95,6 +106,7 @@ def preband(x, xd, yd, p, func):
 
 
 def fit_timedata(x_series: "pd.Series[Any]", y_series: "pd.Series[Any]"):
+    """Fit a curve to the data."""
     # ignore the end date in curve fitting
     x = x_series.values[:-1]
     y = y_series.values[:-1]
@@ -126,6 +138,7 @@ def f(x, slope, intercept):
 
 
 def remove_emojis(text: str) -> str:
+    """Remove emojis from a string."""
     emojis = re.compile(
         pattern="["
         "\U0001F600-\U0001F64F"  # emoticons
@@ -139,6 +152,7 @@ def remove_emojis(text: str) -> str:
 
 
 def validate_excel(excel_path: str) -> bool:
+    """Validate that the submitted excel file is in the correct (MP) format."""
     df = pd.read_excel(
         excel_path,
         usecols="A,B,D",
@@ -157,6 +171,7 @@ def validate_excel(excel_path: str) -> bool:
 def read_excel_to_df(
     excel_path: str, start_date: pd.Timestamp, end_date: pd.Timestamp
 ) -> pd.DataFrame:
+    """Read the excel file to a dataframe."""
     df = pd.read_excel(
         excel_path,
         usecols="A,B,D",
@@ -172,18 +187,20 @@ def read_excel_to_df(
 
 
 def get_raffle_stats(chat_id: int) -> RaffleStatsData:
+    """Get the stats of a raffle, not including dataframe."""
     query_result = db.get_raffle_data(chat_id)
 
     if query_result is None:
         error_text = f"No raffle found for chat {chat_id}"
         raise NoRaffleError(error_text)
 
-    _, start_date, end_date, entry_fee, dates, entries, amounts = query_result
+    _, start_date, end_date, entry_fee, _, _, _ = query_result
 
     return RaffleStatsData(start_date, end_date, entry_fee)
 
 
 def get_raffle(chat_id: int) -> RaffleData:
+    """Get the data of a raffle, including dataframe."""
     query_result = db.get_raffle_data(chat_id)
 
     if query_result is None:
@@ -198,6 +215,7 @@ def get_raffle(chat_id: int) -> RaffleData:
 
 
 def get_cur_time_hel() -> pd.Timestamp:
+    """Get the current time in Helsinki as a Timestamp."""
     # take current time in helsinki and convert it to naive time,
     # as mobilepay times are naive (naive = no timezone specified).
     helsinki_tz = pytz.timezone("Europe/Helsinki")
@@ -213,10 +231,12 @@ def save_raffle(
     entry_fee: int,
     df: pd.DataFrame,
 ) -> None:
+    """Save a raffle to the database."""
     db.save_raffle_data(chat_id, start_date, end_date, entry_fee, df)
 
 
 def parse_df_essentials(raffle_data: RaffleData) -> RaffleData:
+    """Parse the essentials of a raffle dataframe."""
     start_date, end_date, fee, df = raffle_data
 
     df.at[start_date, "amount"] = 0
@@ -230,6 +250,7 @@ def parse_df_essentials(raffle_data: RaffleData) -> RaffleData:
 
 
 def parse_expected(raffle_data: RaffleData) -> RaffleData:
+    """Parse the expected values of a raffle dataframe."""
     start_date, end_date, entry_fee, df = parse_df_essentials(raffle_data)
 
     df["win_odds"] = 1.0 / df["unique"]
@@ -247,6 +268,7 @@ def parse_expected(raffle_data: RaffleData) -> RaffleData:
 
 
 def parse_graph(raffle_data: RaffleData) -> RaffleData:
+    """Parse the graph values of a raffle dataframe."""
     df = raffle_data.df
 
     df.at[get_cur_time_hel(), "amount"] = 0
@@ -258,6 +280,7 @@ def parse_graph(raffle_data: RaffleData) -> RaffleData:
 
 
 def configure_and_save_plot(out_img_path: str) -> None:
+    """Configure and save the plot to an image file."""
     ax = plt.gca()
 
     # toggle legend
@@ -280,6 +303,7 @@ def configure_and_save_plot(out_img_path: str) -> None:
 
 
 def generate_graph(out_img_path: str, chat_id: int, chat_title: str) -> None:
+    """Generate a graph of raffle progress."""
     # -- get raffle data --
     raffle_data = get_raffle(chat_id)
 
@@ -320,6 +344,7 @@ def generate_graph(out_img_path: str, chat_id: int, chat_title: str) -> None:
 
 
 def generate_expected(out_img_path: str, chat_id: int, chat_title: str) -> None:
+    """Generate a graph of expected values."""
     # -- get raffle data --
     raffle_data = get_raffle(chat_id)
 
diff --git a/pyproject.toml b/pyproject.toml
index 8ac07de..cabb86b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,6 +60,7 @@ select = [
   "C90",
   "DTZ",
   "E",
+  "D",
   "EM",
   "F",
   "FBT",
@@ -81,7 +82,7 @@ select = [
   "W",
   "YTT",
 ]
-ignore = []
+ignore = ["D203", "D213"]
 
 fixable = [
   "A",
@@ -166,7 +167,7 @@ dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
 max-complexity = 10
 
 [tool.ruff.per-file-ignores]
-"tests/*" = ["S101"]
+"tests/*" = ["S101", "D"]
 
 [tool.mypy]
 python_version = "3.10"

From 2d1c9ac4b7a8945a0d30abb165963c31dbc0f085 Mon Sep 17 00:00:00 2001
From: Mikael Siidorow 
Date: Mon, 17 Apr 2023 22:08:15 +0300
Subject: [PATCH 6/8] feat!: store historical raffles with new active column

---
 kipubot/bot.py                            |   2 +
 kipubot/constants.py                      |   1 +
 kipubot/db.py                             | 115 ++++++++++++++++++----
 kipubot/handlers/__init__.py              |   2 +
 kipubot/handlers/_close_handler.py        |  33 +++++++
 kipubot/handlers/_raffle_setup_handler.py |  16 +--
 kipubot/handlers/_winner_handler.py       |   3 +
 kipubot/utils.py                          |  30 ++++--
 tests/test_utils.py                       |  15 ++-
 9 files changed, 177 insertions(+), 40 deletions(-)
 create mode 100644 kipubot/handlers/_close_handler.py

diff --git a/kipubot/bot.py b/kipubot/bot.py
index 1904d8d..3d05f48 100644
--- a/kipubot/bot.py
+++ b/kipubot/bot.py
@@ -8,6 +8,7 @@
 from kipubot.db import init_db
 from kipubot.handlers import (
     bot_added_handler,
+    close_handler,
     error_handler,
     excel_file_handler,
     graph_handler,
@@ -35,6 +36,7 @@ def main() -> None:
     app.add_handler(moro_handler)
     app.add_handler(graph_handler)
     app.add_handler(winner_handler)
+    app.add_handler(close_handler)
 
     # warning about using a command in a private chat
     app.add_handler(no_dm_handler)
diff --git a/kipubot/constants.py b/kipubot/constants.py
index af2d3df..6cfb291 100644
--- a/kipubot/constants.py
+++ b/kipubot/constants.py
@@ -59,4 +59,5 @@
     "user_not_found": ("Error getting user!\nPerhaps they haven't /moro ed? 🤔"),
     "already_winner": "You are already the winner!",
     "winner_confirmation": "%(username)s is the new winner!",
+    "close_confirmation": "Raffle closed by @%(username)s! ✔️",
 }
diff --git a/kipubot/db.py b/kipubot/db.py
index a26ea06..ea4b0ef 100644
--- a/kipubot/db.py
+++ b/kipubot/db.py
@@ -4,11 +4,12 @@
 from contextlib import contextmanager, suppress
 
 import psycopg.errors as pserrors
-from pandas import DataFrame, Timestamp
+from pandas import Timestamp
 from psycopg_pool import ConnectionPool
 
 from kipubot import config
 from kipubot.errors import AlreadyRegisteredError
+from kipubot.utils import RaffleData
 
 _pool = ConnectionPool(
     config.DATABASE_URL,
@@ -61,16 +62,29 @@ def init_db():
 
         conn.execute(
             """CREATE TABLE IF NOT EXISTS raffle (
-                        chat_id BIGINT PRIMARY KEY REFERENCES chat(chat_id),
+                        raffle_id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
                         start_date TIMESTAMP,
                         end_date TIMESTAMP,
+                        active BOOLEAN DEFAULT TRUE,
                         entry_fee INTEGER,
                         dates TIMESTAMP[],
                         entries VARCHAR(128)[],
-                        amounts INTEGER[]
+                        amounts INTEGER[],
+                        chat_id BIGINT REFERENCES chat(chat_id),
+                        user_id BIGINT REFERENCES chat_user(user_id)
+
                     )"""
         )
 
+        conn.execute(
+            """CREATE INDEX IF NOT EXISTS raffle_chat_id_idx ON raffle (chat_id)"""
+        )
+
+        conn.execute(
+            """CREATE UNIQUE INDEX IF NOT EXISTS raffle_chat_id_active
+                ON raffle (chat_id) WHERE active = TRUE"""
+        )
+
 
 def get_registered_member_ids(chat_id: int) -> list[int]:
     """Get a list of all registered user IDs in a chat."""
@@ -128,22 +142,39 @@ def get_chats_where_winner(user_id: int) -> list[tuple[int, str]]:
 
 def get_raffle_data(
     chat_id: int,
-) -> tuple[int, Timestamp, Timestamp, int, list[Timestamp], list[str], list[int]]:
-    """Get the raffle data for a chat."""
+) -> tuple[
+    str,
+    Timestamp,
+    Timestamp,
+    bool,
+    int,
+    list[Timestamp],
+    list[str],
+    list[int],
+    int,
+    int,
+]:
+    """Get the raffle data for a chat.
+
+    Returns
+    -------
+        Tuple of the raffle_id, chat_id, start date, end date,
+        entry fee, dates, entries, and amounts.
+    """
     with logging_connection() as conn:
         return conn.execute(
-            "SELECT * FROM raffle WHERE chat_id = %s", [chat_id]
+            """SELECT * FROM raffle WHERE chat_id = %s AND active = true""",
+            [chat_id],
         ).fetchone()
 
 
 def save_raffle_data(
     chat_id: int,
-    start_date: Timestamp,
-    end_date: Timestamp,
-    entry_fee: int,
-    df: DataFrame,
+    user_id: int,
+    raffle_data: RaffleData,
 ) -> None:
     """Save the raffle data for a chat."""
+    start_date, end_date, entry_fee, df = raffle_data
     dates = df["date"].tolist()
     entries = df["name"].tolist()
     amounts = df["amount"].tolist()
@@ -151,16 +182,60 @@ def save_raffle_data(
     with logging_connection() as conn:
         conn.execute(
             """INSERT INTO raffle
-                        VALUES (%s, %s, %s, %s, %s, %s, %s)
-                        ON CONFLICT (chat_id)
-                        DO UPDATE SET
-                            start_date = EXCLUDED.start_date,
-                            end_date = EXCLUDED.end_date,
-                            entry_fee = EXCLUDED.entry_fee,
-                            dates = EXCLUDED.dates,
-                            entries = EXCLUDED.entries,
-                            amounts = EXCLUDED.amounts""",
-            (chat_id, start_date, end_date, entry_fee, dates, entries, amounts),
+                        (start_date, end_date, entry_fee,
+                        dates, entries, amounts, chat_id, user_id)
+                    VALUES (%s, %s, %s, %s, %s, %s, %s, %s)""",
+            (
+                start_date,
+                end_date,
+                entry_fee,
+                dates,
+                entries,
+                amounts,
+                chat_id,
+                user_id,
+            ),
+        )
+
+        conn.commit()
+
+
+def update_raffle_data(
+    raffle_id: str,
+    raffle_data: RaffleData,
+) -> None:
+    """Update the raffle data for a chat."""
+    start_date, end_date, entry_fee, df = raffle_data
+    dates = df["date"].tolist()
+    entries = df["name"].tolist()
+    amounts = df["amount"].tolist()
+
+    with logging_connection() as conn:
+        conn.execute(
+            """UPDATE raffle
+                SET start_date = %s,
+                    end_date = %s,
+                    entry_fee = %s,
+                    dates = %s,
+                    entries = %s,
+                    amounts = %s
+                WHERE raffle_id = %s""",
+            (start_date, end_date, entry_fee, dates, entries, amounts, raffle_id),
+        )
+
+        conn.commit()
+
+
+def close_raffle(
+    chat_id: int,
+) -> None:
+    """Close a raffle."""
+    with logging_connection() as conn:
+        conn.execute(
+            """UPDATE raffle
+                SET active = false
+                WHERE chat_id = %s AND active = true""",
+            (chat_id,),
         )
 
         conn.commit()
diff --git a/kipubot/handlers/__init__.py b/kipubot/handlers/__init__.py
index e65c1bf..744340b 100644
--- a/kipubot/handlers/__init__.py
+++ b/kipubot/handlers/__init__.py
@@ -10,9 +10,11 @@
     "raffle_setup_handler",
     "no_dm_handler",
     "error_handler",
+    "close_handler",
 )
 
 from ._bot_added_handler import bot_added_handler
+from ._close_handler import close_handler
 from ._error_handler import error_handler
 from ._excel_file_handler import excel_file_handler
 from ._graph_handler import graph_handler
diff --git a/kipubot/handlers/_close_handler.py b/kipubot/handlers/_close_handler.py
new file mode 100644
index 0000000..9c7c8eb
--- /dev/null
+++ b/kipubot/handlers/_close_handler.py
@@ -0,0 +1,33 @@
+from telegram import Update
+from telegram.ext import CommandHandler, ContextTypes, filters
+
+from kipubot.constants import STRINGS
+from kipubot.db import (
+    close_raffle,
+    get_admin_ids,
+    get_winner_id,
+)
+
+
+async def close(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
+    if not update.effective_chat or not update.effective_user or not update.message:
+        return None
+
+    chat_id = update.effective_chat.id
+    user_id = update.effective_user.id
+
+    is_admin = user_id in get_admin_ids(chat_id)
+    is_cur_winner = user_id == get_winner_id(chat_id)
+
+    if not is_admin and not is_cur_winner:
+        await update.message.reply_text(STRINGS["forbidden_command"])
+        return
+
+    close_raffle(chat_id)
+
+    await update.message.reply_text(
+        STRINGS["close_confirmation"] % {"username": update.effective_user.username}
+    )
+
+
+close_handler = CommandHandler(["sulje", "close"], close, ~filters.ChatType.PRIVATE)
diff --git a/kipubot/handlers/_raffle_setup_handler.py b/kipubot/handlers/_raffle_setup_handler.py
index a9b5627..3737528 100644
--- a/kipubot/handlers/_raffle_setup_handler.py
+++ b/kipubot/handlers/_raffle_setup_handler.py
@@ -8,6 +8,7 @@
 from kipubot.constants import STRINGS
 from kipubot.errors import NoRaffleError
 from kipubot.utils import (
+    RaffleData,
     get_cur_time_hel,
     get_raffle_stats,
     int_price_to_str,
@@ -15,6 +16,7 @@
     is_int,
     read_excel_to_df,
     save_raffle,
+    update_raffle,
 )
 
 # ==================
@@ -68,11 +70,6 @@ async def convo_timeout(update: Update, context: ContextTypes.DEFAULT_TYPE) -> i
 def raffle_keyboard(*, has_existing: bool = False) -> InlineKeyboardMarkup:
     if has_existing:
         keyboard = [
-            [
-                InlineKeyboardButton(
-                    STRINGS["new_raffle_button"], callback_data="raffle:setup:new"
-                )
-            ],
             [
                 InlineKeyboardButton(
                     STRINGS["update_raffle_button"], callback_data="raffle:setup:old"
@@ -370,10 +367,11 @@ async def finish_setup(update: Update, context: ContextTypes.DEFAULT_TYPE) -> in
         chat_id = context.user_data["raffle_chat_id"]
         dm_id = update.effective_chat.id
 
-        start_date, end_date, entry_fee = get_raffle_stats(chat_id)
+        raffle_id, (start_date, end_date, entry_fee) = get_raffle_stats(chat_id)
         excel_path = f"data/{dm_id}/data.xlsx"
         df = read_excel_to_df(excel_path, start_date, end_date)
-        save_raffle(chat_id, start_date, end_date, entry_fee, df)
+        raffle_data = RaffleData(start_date, end_date, entry_fee, df)
+        update_raffle(raffle_id, raffle_data)
 
         await query.message.edit_text(
             STRINGS["updated_raffle"] % {"chat_title": chat_title}
@@ -392,13 +390,15 @@ async def finish_setup(update: Update, context: ContextTypes.DEFAULT_TYPE) -> in
     if query.data == "raffle:fee:confirmed":
         chat_title = context.user_data["raffle_chat_title"]
         chat_id = context.user_data["raffle_chat_id"]
+        user_id = update.effective_user.id
         start_date = context.user_data["raffle_start_date"]
         end_date = context.user_data["raffle_end_date"]
         fee = context.user_data["raffle_fee"]
 
         excel_path = f"data/{dm_id}/data.xlsx"
         df = read_excel_to_df(excel_path, start_date, end_date)
-        save_raffle(chat_id, start_date, end_date, fee, df)
+        raffle_data = RaffleData(start_date, end_date, fee, df)
+        save_raffle(chat_id, user_id, raffle_data)
 
         msg = (
             STRINGS["raffle_setup_base"]
diff --git a/kipubot/handlers/_winner_handler.py b/kipubot/handlers/_winner_handler.py
index 9684260..0f662e2 100644
--- a/kipubot/handlers/_winner_handler.py
+++ b/kipubot/handlers/_winner_handler.py
@@ -8,6 +8,7 @@
 from kipubot.constants import STRINGS
 from kipubot.db import (
     admin_cycle_winners,
+    close_raffle,
     cycle_winners,
     get_admin_ids,
     get_prev_winner_ids,
@@ -88,6 +89,8 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
         # winner: moves themselves to prev and makes new current
         else:
             cycle_winners(user_id, winner_id, chat_id)
+
+        close_raffle(chat_id)
     except pserrors.Error:
         _logger.exception("SQLite Error:")
         await update.message.reply_text(STRINGS["user_not_found"])
diff --git a/kipubot/utils.py b/kipubot/utils.py
index 72fb91e..c5f0062 100644
--- a/kipubot/utils.py
+++ b/kipubot/utils.py
@@ -18,7 +18,7 @@
 from telegram.error import BadRequest
 
 from kipubot import db
-from kipubot.errors import NoRaffleError
+from kipubot.errors import NoEntriesError, NoRaffleError
 
 
 class RaffleStatsData(NamedTuple):
@@ -186,7 +186,7 @@ def read_excel_to_df(
     return df
 
 
-def get_raffle_stats(chat_id: int) -> RaffleStatsData:
+def get_raffle_stats(chat_id: int) -> tuple[str, RaffleStatsData]:
     """Get the stats of a raffle, not including dataframe."""
     query_result = db.get_raffle_data(chat_id)
 
@@ -194,9 +194,9 @@ def get_raffle_stats(chat_id: int) -> RaffleStatsData:
         error_text = f"No raffle found for chat {chat_id}"
         raise NoRaffleError(error_text)
 
-    _, start_date, end_date, entry_fee, _, _, _ = query_result
+    raffle_id, start_date, end_date, _, entry_fee, _, _, _, _, _ = query_result
 
-    return RaffleStatsData(start_date, end_date, entry_fee)
+    return (raffle_id, RaffleStatsData(start_date, end_date, entry_fee))
 
 
 def get_raffle(chat_id: int) -> RaffleData:
@@ -207,7 +207,11 @@ def get_raffle(chat_id: int) -> RaffleData:
         error_text = f"No raffle found for chat {chat_id}"
         raise NoRaffleError(error_text)
 
-    _, start_date, end_date, entry_fee, dates, entries, amounts = query_result
+    _, start_date, end_date, _, entry_fee, dates, entries, amounts, _, _ = query_result
+
+    if len(dates) == 0 or len(entries) == 0 or len(amounts) == 0:
+        error_text = f"No entries found for chat {chat_id}"
+        raise NoEntriesError(error_text)
 
     df = pd.DataFrame(data={"date": dates, "name": entries, "amount": amounts})
     df.set_index("date", inplace=True)
@@ -226,13 +230,19 @@ def get_cur_time_hel() -> pd.Timestamp:
 
 def save_raffle(
     chat_id: int,
-    start_date: pd.Timestamp,
-    end_date: pd.Timestamp,
-    entry_fee: int,
-    df: pd.DataFrame,
+    user_id: int,
+    raffle_data: RaffleData,
 ) -> None:
     """Save a raffle to the database."""
-    db.save_raffle_data(chat_id, start_date, end_date, entry_fee, df)
+    db.save_raffle_data(chat_id, user_id, raffle_data)
+
+
+def update_raffle(
+    raffle_id: str,
+    raffle_data: RaffleData,
+) -> None:
+    """Update a raffle in the database."""
+    db.update_raffle_data(raffle_id, raffle_data)
 
 
 def parse_df_essentials(raffle_data: RaffleData) -> RaffleData:
diff --git a/tests/test_utils.py b/tests/test_utils.py
index b4bc746..57d9edc 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -4,8 +4,16 @@
 from pandas import Timestamp
 from pandas.testing import assert_frame_equal
 
-from kipubot.db import delete_chat, delete_raffle_data, init_db, save_chat_or_ignore
+from kipubot.db import (
+    delete_chat,
+    delete_raffle_data,
+    init_db,
+    register_user,
+    save_chat_or_ignore,
+    save_user_or_ignore,
+)
 from kipubot.utils import (
+    RaffleData,
     get_raffle,
     int_price_to_str,
     read_excel_to_df,
@@ -90,6 +98,8 @@ class TestGraphSave:
     def create_chat(self):
         init_db()
         save_chat_or_ignore(1, "testing", [1])
+        save_user_or_ignore(1)
+        register_user(1, 1)
         yield 1
         delete_chat(1)
 
@@ -99,7 +109,8 @@ def test_graph_save(self):
         end_date = Timestamp("2022-08-12 03:15:00")
         entry_fee = 1
         df = read_excel_to_df(file_path, start_date, end_date)
-        save_raffle(1, start_date, end_date, entry_fee, df)
+        raffle_data = RaffleData(start_date, end_date, entry_fee, df)
+        save_raffle(1, 1, raffle_data)
         raffle_from_db = get_raffle(1)
         delete_raffle_data(1)
         assert start_date == raffle_from_db.start_date

From b19950af76a5a3d711894282898597abf3ff2ab8 Mon Sep 17 00:00:00 2001
From: Mikael Siidorow 
Date: Mon, 17 Apr 2023 22:46:08 +0300
Subject: [PATCH 7/8] fix: circular import breaking tests

---
 kipubot/db.py                             |  2 +-
 kipubot/handlers/_raffle_setup_handler.py |  2 +-
 kipubot/types.py                          | 22 +++++++++++++++++
 kipubot/utils.py                          | 30 ++++++-----------------
 tests/test_utils.py                       |  2 +-
 5 files changed, 32 insertions(+), 26 deletions(-)
 create mode 100644 kipubot/types.py

diff --git a/kipubot/db.py b/kipubot/db.py
index ea4b0ef..295a5ca 100644
--- a/kipubot/db.py
+++ b/kipubot/db.py
@@ -9,7 +9,7 @@
 
 from kipubot import config
 from kipubot.errors import AlreadyRegisteredError
-from kipubot.utils import RaffleData
+from kipubot.types import RaffleData
 
 _pool = ConnectionPool(
     config.DATABASE_URL,
diff --git a/kipubot/handlers/_raffle_setup_handler.py b/kipubot/handlers/_raffle_setup_handler.py
index 3737528..6bcb21f 100644
--- a/kipubot/handlers/_raffle_setup_handler.py
+++ b/kipubot/handlers/_raffle_setup_handler.py
@@ -7,8 +7,8 @@
 
 from kipubot.constants import STRINGS
 from kipubot.errors import NoRaffleError
+from kipubot.types import RaffleData
 from kipubot.utils import (
-    RaffleData,
     get_cur_time_hel,
     get_raffle_stats,
     int_price_to_str,
diff --git a/kipubot/types.py b/kipubot/types.py
new file mode 100644
index 0000000..135056b
--- /dev/null
+++ b/kipubot/types.py
@@ -0,0 +1,22 @@
+"""Type definitions and classes for Kipubot."""
+
+from typing import NamedTuple
+
+from pandas import DataFrame, Timestamp
+
+
+class RaffleStatsData(NamedTuple):
+    """Data for raffle stats without entry data."""
+
+    start_date: Timestamp
+    end_date: Timestamp
+    entry_fee: int
+
+
+class RaffleData(NamedTuple):
+    """Data for raffle stats with entry data."""
+
+    start_date: Timestamp
+    end_date: Timestamp
+    entry_fee: int
+    df: DataFrame
diff --git a/kipubot/utils.py b/kipubot/utils.py
index c5f0062..1a32e1d 100644
--- a/kipubot/utils.py
+++ b/kipubot/utils.py
@@ -2,7 +2,7 @@
 
 import os
 import re
-from typing import Any, NamedTuple
+from typing import Any
 
 import matplotlib.dates as mdates  # type: ignore
 import matplotlib.pyplot as plt  # type: ignore
@@ -17,25 +17,9 @@
 from telegram import Chat, ChatMember
 from telegram.error import BadRequest
 
-from kipubot import db
+from kipubot.db import get_raffle_data, save_raffle_data, update_raffle_data
 from kipubot.errors import NoEntriesError, NoRaffleError
-
-
-class RaffleStatsData(NamedTuple):
-    """Data for raffle stats without entry data."""
-
-    start_date: pd.Timestamp
-    end_date: pd.Timestamp
-    entry_fee: int
-
-
-class RaffleData(NamedTuple):
-    """Data for raffle stats with entry data."""
-
-    start_date: pd.Timestamp
-    end_date: pd.Timestamp
-    entry_fee: int
-    df: pd.DataFrame
+from kipubot.types import RaffleData, RaffleStatsData
 
 
 def is_int(x: str) -> bool:
@@ -188,7 +172,7 @@ def read_excel_to_df(
 
 def get_raffle_stats(chat_id: int) -> tuple[str, RaffleStatsData]:
     """Get the stats of a raffle, not including dataframe."""
-    query_result = db.get_raffle_data(chat_id)
+    query_result = get_raffle_data(chat_id)
 
     if query_result is None:
         error_text = f"No raffle found for chat {chat_id}"
@@ -201,7 +185,7 @@ def get_raffle_stats(chat_id: int) -> tuple[str, RaffleStatsData]:
 
 def get_raffle(chat_id: int) -> RaffleData:
     """Get the data of a raffle, including dataframe."""
-    query_result = db.get_raffle_data(chat_id)
+    query_result = get_raffle_data(chat_id)
 
     if query_result is None:
         error_text = f"No raffle found for chat {chat_id}"
@@ -234,7 +218,7 @@ def save_raffle(
     raffle_data: RaffleData,
 ) -> None:
     """Save a raffle to the database."""
-    db.save_raffle_data(chat_id, user_id, raffle_data)
+    save_raffle_data(chat_id, user_id, raffle_data)
 
 
 def update_raffle(
@@ -242,7 +226,7 @@ def update_raffle(
     raffle_data: RaffleData,
 ) -> None:
     """Update a raffle in the database."""
-    db.update_raffle_data(raffle_id, raffle_data)
+    update_raffle_data(raffle_id, raffle_data)
 
 
 def parse_df_essentials(raffle_data: RaffleData) -> RaffleData:
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 57d9edc..e6c7325 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -12,8 +12,8 @@
     save_chat_or_ignore,
     save_user_or_ignore,
 )
+from kipubot.types import RaffleData
 from kipubot.utils import (
-    RaffleData,
     get_raffle,
     int_price_to_str,
     read_excel_to_df,

From c0f6171446bed623c1f77ebc0c84e0b7ededd57f Mon Sep 17 00:00:00 2001
From: Mikael Siidorow 
Date: Tue, 18 Apr 2023 21:00:59 +0300
Subject: [PATCH 8/8] style: enable more ruff rules, and fix warnings

---
 kipubot/__init__.py                       |  11 +-
 kipubot/bot.py                            |   2 -
 kipubot/db.py                             |  34 ++---
 kipubot/errors.py                         |   6 -
 kipubot/handlers/_bot_added_handler.py    |  14 ++-
 kipubot/handlers/_close_handler.py        |   4 +-
 kipubot/handlers/_error_handler.py        |   7 +-
 kipubot/handlers/_excel_file_handler.py   |  15 +--
 kipubot/handlers/_graph_handler.py        |  33 +++--
 kipubot/handlers/_moro_handler.py         |   6 +-
 kipubot/handlers/_no_dm_handler.py        |   2 +-
 kipubot/handlers/_raffle_setup_handler.py |  67 +++++-----
 kipubot/handlers/_start_handler.py        |   6 +-
 kipubot/handlers/_winner_handler.py       |  10 +-
 kipubot/utils.py                          | 143 +++++++++++++---------
 pyproject.toml                            |  36 ++++--
 tests/test_utils.py                       |  13 +-
 17 files changed, 235 insertions(+), 174 deletions(-)

diff --git a/kipubot/__init__.py b/kipubot/__init__.py
index ea50a04..66277d9 100644
--- a/kipubot/__init__.py
+++ b/kipubot/__init__.py
@@ -1,13 +1,14 @@
 """Kipubot - A Telegram bot for graphing friday raffles."""
 
 import logging
-import os
+from pathlib import Path
 
 from pydantic import BaseSettings
 
 # LOGGING CONFIG
 logging.basicConfig(
-    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO
+    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+    level=logging.INFO,
 )
 
 
@@ -29,9 +30,7 @@ class Config:
 config = Settings()
 
 
-# CHECK/CREATE DATA DIRECTORY
-if not os.path.exists("data"):
-    logging.info("Creating ./data/ directory...")
-    os.mkdir("data")
+logging.info("Creating ./data/ directory... ")
+Path("data").mkdir(exist_ok=True)
 
 __all__ = ("config",)
diff --git a/kipubot/bot.py b/kipubot/bot.py
index 3d05f48..24d5483 100644
--- a/kipubot/bot.py
+++ b/kipubot/bot.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 """Main kipubot file for running the bot."""
 
 from telegram.ext import ApplicationBuilder, PicklePersistence
diff --git a/kipubot/db.py b/kipubot/db.py
index 295a5ca..09285e6 100644
--- a/kipubot/db.py
+++ b/kipubot/db.py
@@ -1,10 +1,13 @@
 """Database connection and queries for Kipubot."""
 
 import logging
+from collections.abc import Generator
 from contextlib import contextmanager, suppress
+from typing import Any
 
 import psycopg.errors as pserrors
 from pandas import Timestamp
+from psycopg import Connection
 from psycopg_pool import ConnectionPool
 
 from kipubot import config
@@ -19,7 +22,7 @@
 
 
 @contextmanager
-def logging_connection():
+def logging_connection() -> Generator[Connection[Any], None, None]:
     """Log errors while connecting to the database."""
     try:
         _logger.info("Getting db connection...")
@@ -33,7 +36,7 @@ def logging_connection():
         _logger.info("Freeing database connection...")
 
 
-def init_db():
+def init_db() -> None:
     """Initialize the database tables if they don't exist."""
     with logging_connection() as conn:
         conn.execute(
@@ -43,13 +46,13 @@ def init_db():
                         admins BIGINT[],
                         prev_winners BIGINT[],
                         cur_winner BIGINT
-                    )"""
+                    )""",
         )
 
         conn.execute(
             """CREATE TABLE IF NOT EXISTS chat_user (
                         user_id BIGINT PRIMARY KEY
-                    )"""
+                    )""",
         )
 
         conn.execute(
@@ -57,7 +60,7 @@ def init_db():
                         user_id BIGINT REFERENCES chat_user(user_id),
                         chat_id BIGINT REFERENCES chat(chat_id),
                         PRIMARY KEY (user_id, chat_id)
-                    )"""
+                    )""",
         )
 
         conn.execute(
@@ -73,16 +76,16 @@ def init_db():
                         chat_id BIGINT REFERENCES chat(chat_id),
                         user_id BIGINT REFERENCES chat_user(user_id)
 
-                    )"""
+                    )""",
         )
 
         conn.execute(
-            """CREATE INDEX IF NOT EXISTS raffle_chat_id_idx ON raffle (chat_id)"""
+            """CREATE INDEX IF NOT EXISTS raffle_chat_id_idx ON raffle (chat_id)""",
         )
 
         conn.execute(
             """CREATE UNIQUE INDEX IF NOT EXISTS raffle_chat_id_active
-                ON raffle (chat_id) WHERE active = TRUE"""
+                ON raffle (chat_id) WHERE active = TRUE""",
         )
 
 
@@ -104,7 +107,8 @@ def get_admin_ids(chat_id: int) -> list[int]:
     """Get a list of all admin IDs in a chat."""
     with logging_connection() as conn:
         data = conn.execute(
-            "SELECT admins FROM chat WHERE chat_id = %s", (chat_id,)
+            "SELECT admins FROM chat WHERE chat_id = %s",
+            (chat_id,),
         ).fetchone()
         return data[0] if data else []
 
@@ -113,7 +117,8 @@ def get_prev_winner_ids(chat_id: int) -> list[int]:
     """Get a list of all previous winner IDs in a chat."""
     with logging_connection() as conn:
         data = conn.execute(
-            "SELECT prev_winners FROM chat WHERE chat_id = %s", (chat_id,)
+            "SELECT prev_winners FROM chat WHERE chat_id = %s",
+            (chat_id,),
         ).fetchone()
         return data[0] if data else []
 
@@ -122,7 +127,8 @@ def get_winner_id(chat_id: int) -> int:
     """Get the current winner ID in a chat."""
     with logging_connection() as conn:
         data = conn.execute(
-            "SELECT cur_winner FROM chat WHERE chat_id = %s", (chat_id,)
+            "SELECT cur_winner FROM chat WHERE chat_id = %s",
+            (chat_id,),
         ).fetchone()
         return data[0] if data else None
 
@@ -162,7 +168,7 @@ def get_raffle_data(
         entry fee, dates, entries, and amounts.
     """
     with logging_connection() as conn:
-        return conn.execute(
+        return conn.execute(  # type: ignore
             """SELECT * FROM raffle WHERE chat_id = %s AND active = true""",
             [chat_id],
         ).fetchone()
@@ -241,7 +247,7 @@ def close_raffle(
         conn.commit()
 
 
-def delete_raffle_data(chat_id: int):
+def delete_raffle_data(chat_id: int) -> None:
     """Delete the raffle data for a chat."""
     with logging_connection() as conn:
         conn.execute("""DELETE FROM raffle where chat_id=%s""", (chat_id,))
@@ -272,7 +278,7 @@ def save_chat_or_ignore(chat_id: int, title: str, admin_ids: list[int]) -> None:
         )
 
 
-def delete_chat(chat_id: int):
+def delete_chat(chat_id: int) -> None:
     """Delete a chat from the database."""
     with logging_connection() as conn:
         conn.execute("""DELETE FROM chat where chat_id=%s""", (chat_id,))
diff --git a/kipubot/errors.py b/kipubot/errors.py
index 1cb3993..84b6750 100644
--- a/kipubot/errors.py
+++ b/kipubot/errors.py
@@ -4,16 +4,10 @@
 class NoEntriesError(Exception):
     """Raised when there are no entries in a raffle."""
 
-    pass
-
 
 class NoRaffleError(Exception):
     """Raised when there is no raffle in a chat."""
 
-    pass
-
 
 class AlreadyRegisteredError(Exception):
     """Raised when a user tries to register twice."""
-
-    pass
diff --git a/kipubot/handlers/_bot_added_handler.py b/kipubot/handlers/_bot_added_handler.py
index 4c4c333..f67c20f 100644
--- a/kipubot/handlers/_bot_added_handler.py
+++ b/kipubot/handlers/_bot_added_handler.py
@@ -1,3 +1,5 @@
+import logging
+
 import psycopg.errors as pserrors
 from telegram import Update
 from telegram.constants import ChatMemberStatus
@@ -6,6 +8,8 @@
 from kipubot.constants import STRINGS
 from kipubot.db import register_user_or_ignore, save_chat_or_ignore, save_user_or_ignore
 
+_logger = logging.getLogger(__name__)
+
 
 async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
     if (
@@ -36,10 +40,11 @@ async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
             save_user_or_ignore(user_id)
             register_user_or_ignore(chat_id, user_id)
 
-        except pserrors.IntegrityError as e:
-            print("SQLite Error: " + str(e))
+        except pserrors.IntegrityError:
+            _logger.exception("IntegrityError")
             await context.bot.send_message(
-                chat_id=chat_id, text=STRINGS["unknown_error"]
+                chat_id=chat_id,
+                text=STRINGS["unknown_error"],
             )
         else:
             # Kiitos pääsystä! -stigu
@@ -48,7 +53,8 @@ async def bot_added(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
                 sticker="CAACAgQAAxkBAAIBPmLicTHP2Xv8IcFzxHYocjLRFBvQAAI5AAMcLHsXd9jLHwYNcSEpBA",
             )
             await context.bot.send_message(
-                chat_id=chat_id, text=STRINGS["moro_prompt"] % {"chat_title": title}
+                chat_id=chat_id,
+                text=STRINGS["moro_prompt"] % {"chat_title": title},
             )
 
 
diff --git a/kipubot/handlers/_close_handler.py b/kipubot/handlers/_close_handler.py
index 9c7c8eb..33a0807 100644
--- a/kipubot/handlers/_close_handler.py
+++ b/kipubot/handlers/_close_handler.py
@@ -11,7 +11,7 @@
 
 async def close(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
     if not update.effective_chat or not update.effective_user or not update.message:
-        return None
+        return
 
     chat_id = update.effective_chat.id
     user_id = update.effective_user.id
@@ -26,7 +26,7 @@ async def close(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
     close_raffle(chat_id)
 
     await update.message.reply_text(
-        STRINGS["close_confirmation"] % {"username": update.effective_user.username}
+        STRINGS["close_confirmation"] % {"username": update.effective_user.username},
     )
 
 
diff --git a/kipubot/handlers/_error_handler.py b/kipubot/handlers/_error_handler.py
index c87984c..ee22bfe 100644
--- a/kipubot/handlers/_error_handler.py
+++ b/kipubot/handlers/_error_handler.py
@@ -47,11 +47,14 @@ async def error_handler(update: object, context: ContextTypes.DEFAULT_TYPE) -> N
     # Finally, send the message if DEVELOPER_CHAT_ID is set.
     if config.DEVELOPER_CHAT_ID:
         await context.bot.send_message(
-            chat_id=config.DEVELOPER_CHAT_ID, text=message, parse_mode=ParseMode.HTML
+            chat_id=config.DEVELOPER_CHAT_ID,
+            text=message,
+            parse_mode=ParseMode.HTML,
         )
 
     # Also send a message to the user who triggered the error.
     if isinstance(update, Update) and update.effective_chat is not None:
         await context.bot.send_message(
-            chat_id=update.effective_chat.id, text=STRINGS["server_error"]
+            chat_id=update.effective_chat.id,
+            text=STRINGS["server_error"],
         )
diff --git a/kipubot/handlers/_excel_file_handler.py b/kipubot/handlers/_excel_file_handler.py
index bf44205..d3c79c3 100644
--- a/kipubot/handlers/_excel_file_handler.py
+++ b/kipubot/handlers/_excel_file_handler.py
@@ -1,4 +1,4 @@
-import os
+from pathlib import Path
 
 from telegram import InlineKeyboardButton, InlineKeyboardMarkup, Update
 from telegram.ext import ContextTypes, ConversationHandler, MessageHandler, filters
@@ -31,14 +31,13 @@ async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int:
     base_path = f"data/{dm_id}"
     excel_path = base_path + "/data.xlsx"
 
-    if not os.path.exists(base_path):
-        os.mkdir(base_path)
+    Path(base_path).mkdir(parents=True, exist_ok=True)
 
     await file.download_to_drive(excel_path)
 
     if not validate_excel(excel_path):
         await update.message.reply_text(STRINGS["invalid_file"])
-        os.remove(excel_path)
+        Path(excel_path).unlink()
         return ConversationHandler.END
 
     chat_buttons = []
@@ -48,7 +47,7 @@ async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int:
             InlineKeyboardButton(
                 STRINGS["chat_button"] % {"chat_title": chat_title},
                 callback_data=f"raffle:chat_selected:{chat_id}:{chat_title}",
-            )
+            ),
         )
 
     keyboard = [
@@ -59,12 +58,14 @@ async def excel_file(update: Update, context: ContextTypes.DEFAULT_TYPE) -> int:
     reply_markup = InlineKeyboardMarkup(keyboard)
 
     await update.message.reply_text(
-        STRINGS["choose_channel"], reply_markup=reply_markup
+        STRINGS["choose_channel"],
+        reply_markup=reply_markup,
     )
 
     return ConversationHandler.END
 
 
 excel_file_handler = MessageHandler(
-    filters.Document.MimeType(EXCEL_MIME) & filters.ChatType.PRIVATE, excel_file
+    filters.Document.MimeType(EXCEL_MIME) & filters.ChatType.PRIVATE,
+    excel_file,
 )
diff --git a/kipubot/handlers/_graph_handler.py b/kipubot/handlers/_graph_handler.py
index afecdcd..d6c52c3 100644
--- a/kipubot/handlers/_graph_handler.py
+++ b/kipubot/handlers/_graph_handler.py
@@ -1,3 +1,6 @@
+import logging
+from pathlib import Path
+
 import psycopg.errors as pserrors
 from telegram import Update
 from telegram.ext import CommandHandler, ContextTypes, filters
@@ -6,12 +9,14 @@
 from kipubot.errors import NoEntriesError, NoRaffleError
 from kipubot.utils import generate_expected, generate_graph
 
-GRAPH_TYPE = dict(
-    expected="expected",
-    odotusarvo="expected",
-    graph="graph",
-    kuvaaja="graph",
-)
+GRAPH_TYPE = {
+    "expected": "expected",
+    "odotusarvo": "expected",
+    "graph": "graph",
+    "kuvaaja": "graph",
+}
+
+_logger = logging.getLogger(__name__)
 
 
 def get_graph_img(graph_type: str) -> str:
@@ -31,7 +36,7 @@ async def graph(
         or not update.message
         or not update.message.text
     ):
-        return None
+        return
 
     chat_id = update.effective_chat.id
     chat_title = (
@@ -47,24 +52,26 @@ async def graph(
         else:
             generate_graph(graph_path, chat_id, chat_title)
 
-        with open(graph_path, "rb") as f:
+        with Path(graph_path).open("rb") as f:
             await update.message.reply_photo(photo=f)
 
     except NoRaffleError:
         await update.message.reply_text(
-            STRINGS["no_raffle"] % {"chat_title": chat_title}
+            STRINGS["no_raffle"] % {"chat_title": chat_title},
         )
     except NoEntriesError:
         await update.message.reply_text(
-            STRINGS["no_entries"] % {"chat_title": chat_title}
+            STRINGS["no_entries"] % {"chat_title": chat_title},
         )
-    except pserrors.Error as e:
-        print(e)
+    except pserrors.Error:
+        _logger.exception("psycopg error")
         await update.message.reply_text(STRINGS["raffle_db_error"])
     except FileNotFoundError:
         await update.message.reply_text(STRINGS["no_data"] % {"chat_title": chat_title})
 
 
 graph_handler = CommandHandler(
-    ["kuvaaja", "graph", "odotusarvo", "expected"], graph, ~filters.ChatType.PRIVATE
+    ["kuvaaja", "graph", "odotusarvo", "expected"],
+    graph,
+    ~filters.ChatType.PRIVATE,
 )
diff --git a/kipubot/handlers/_moro_handler.py b/kipubot/handlers/_moro_handler.py
index 985b608..8d4c93d 100644
--- a/kipubot/handlers/_moro_handler.py
+++ b/kipubot/handlers/_moro_handler.py
@@ -8,7 +8,7 @@
 
 async def hello(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
     if not update.effective_chat or not update.effective_user or not update.message:
-        return None
+        return
 
     chat_id = update.effective_chat.id
     user_id = update.effective_user.id
@@ -20,11 +20,11 @@ async def hello(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
 
     except AlreadyRegisteredError:
         await update.message.reply_text(
-            STRINGS["double_moro"] % {"username": username, "chat_title": chat}
+            STRINGS["double_moro"] % {"username": username, "chat_title": chat},
         )
     else:
         await update.message.reply_text(
-            STRINGS["moro"] % {"username": username, "chat_title": chat}
+            STRINGS["moro"] % {"username": username, "chat_title": chat},
         )
 
 
diff --git a/kipubot/handlers/_no_dm_handler.py b/kipubot/handlers/_no_dm_handler.py
index bd9d408..9d42bd9 100644
--- a/kipubot/handlers/_no_dm_handler.py
+++ b/kipubot/handlers/_no_dm_handler.py
@@ -6,7 +6,7 @@
 
 async def chat_only(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
     if not update.message:
-        return None
+        return
     await update.message.reply_text(STRINGS["no_dm_warn"])
 
 
diff --git a/kipubot/handlers/_raffle_setup_handler.py b/kipubot/handlers/_raffle_setup_handler.py
index 6bcb21f..1cc84c5 100644
--- a/kipubot/handlers/_raffle_setup_handler.py
+++ b/kipubot/handlers/_raffle_setup_handler.py
@@ -1,4 +1,4 @@
-import os
+from pathlib import Path
 from typing import Literal
 
 import pandas as pd
@@ -72,13 +72,15 @@ def raffle_keyboard(*, has_existing: bool = False) -> InlineKeyboardMarkup:
         keyboard = [
             [
                 InlineKeyboardButton(
-                    STRINGS["update_raffle_button"], callback_data="raffle:setup:old"
-                )
+                    STRINGS["update_raffle_button"],
+                    callback_data="raffle:setup:old",
+                ),
             ],
             [
                 InlineKeyboardButton(
-                    STRINGS["cancel_button"], callback_data="raffle:cancel"
-                )
+                    STRINGS["cancel_button"],
+                    callback_data="raffle:cancel",
+                ),
             ],
         ]
         return InlineKeyboardMarkup(keyboard)
@@ -86,8 +88,9 @@ def raffle_keyboard(*, has_existing: bool = False) -> InlineKeyboardMarkup:
     keyboard = [
         [
             InlineKeyboardButton(
-                STRINGS["new_raffle_button"], callback_data="raffle:setup:new"
-            )
+                STRINGS["new_raffle_button"],
+                callback_data="raffle:setup:new",
+            ),
         ],
         [InlineKeyboardButton(STRINGS["cancel_button"], callback_data="raffle:cancel")],
     ]
@@ -108,10 +111,12 @@ def date_keyboard(which: Literal["start", "end"]) -> InlineKeyboardMarkup:
         InlineKeyboardButton("-1 h", callback_data=f"raffle:date:{which}:update:-1"),
         InlineKeyboardButton("-30 m", callback_data=f"raffle:date:{which}:update:-0.5"),
         InlineKeyboardButton(
-            "-15 m", callback_data=f"raffle:date:{which}:update:-0.25"
+            "-15 m",
+            callback_data=f"raffle:date:{which}:update:-0.25",
         ),
         InlineKeyboardButton(
-            "+15 m", callback_data=f"raffle:date:{which}:update:+0.25"
+            "+15 m",
+            callback_data=f"raffle:date:{which}:update:+0.25",
         ),
         InlineKeyboardButton("+30 m", callback_data=f"raffle:date:{which}:update:+0.5"),
         InlineKeyboardButton("+1 h", callback_data=f"raffle:date:{which}:update:+1"),
@@ -124,7 +129,7 @@ def date_keyboard(which: Literal["start", "end"]) -> InlineKeyboardMarkup:
             InlineKeyboardButton(
                 STRINGS["confirm_button"],
                 callback_data=f"raffle:date:{which}:confirmed",
-            )
+            ),
         ],
         [InlineKeyboardButton(STRINGS["cancel_button"], callback_data="raffle:cancel")],
     ]
@@ -142,8 +147,9 @@ def fee_keyboard() -> InlineKeyboardMarkup:
         ],
         [
             InlineKeyboardButton(
-                STRINGS["finish_raffle_button"], callback_data="raffle:fee:confirmed"
-            )
+                STRINGS["finish_raffle_button"],
+                callback_data="raffle:fee:confirmed",
+            ),
         ],
         [InlineKeyboardButton(STRINGS["cancel_button"], callback_data="raffle:cancel")],
     ]
@@ -188,12 +194,13 @@ async def setup_raffle(update: Update, context: ContextTypes.DEFAULT_TYPE) -> st
             ) % {"chat_title": chat_title}
 
             await query.message.edit_text(
-                msg, reply_markup=raffle_keyboard(has_existing=True)
+                msg,
+                reply_markup=raffle_keyboard(has_existing=True),
             )
 
         except NoRaffleError:
             msg = (STRINGS["raffle_setup_base"] + STRINGS["raffle_setup_new"]) % {
-                "chat_title": chat_title
+                "chat_title": chat_title,
             }
 
             await query.message.edit_text(msg, reply_markup=raffle_keyboard())
@@ -205,7 +212,8 @@ async def setup_raffle(update: Update, context: ContextTypes.DEFAULT_TYPE) -> st
 
 
 async def setup_start_date(
-    update: Update, context: ContextTypes.DEFAULT_TYPE
+    update: Update,
+    context: ContextTypes.DEFAULT_TYPE,
 ) -> str | int:
     query = update.callback_query
     if not query or not query.message or not query.data or not context.user_data:
@@ -226,7 +234,7 @@ async def setup_start_date(
         context.user_data["raffle_start_date"] = new_date
 
     if query.data == "raffle:setup:new" or query.data.startswith(
-        "raffle:date:start:update"
+        "raffle:date:start:update",
     ):
         chat_title = context.user_data["raffle_chat_title"]
         start_date = context.user_data["raffle_start_date"]
@@ -244,7 +252,8 @@ async def setup_start_date(
 
 
 async def setup_end_date(
-    update: Update, context: ContextTypes.DEFAULT_TYPE
+    update: Update,
+    context: ContextTypes.DEFAULT_TYPE,
 ) -> str | int:
     query = update.callback_query
     if not query or not query.message or not query.data or not context.user_data:
@@ -265,7 +274,7 @@ async def setup_end_date(
         context.user_data["raffle_end_date"] = new_date
 
     if query.data == "raffle:date:start:confirmed" or query.data.startswith(
-        "raffle:date:end:update"
+        "raffle:date:end:update",
     ):
         chat_title = context.user_data["raffle_chat_title"]
         start_date = context.user_data["raffle_start_date"]
@@ -316,7 +325,7 @@ async def setup_fee(update: Update, context: ContextTypes.DEFAULT_TYPE) -> str |
         context.user_data["raffle_fee"] = new_fee
 
     if query.data == "raffle:date:end:confirmed" or query.data.startswith(
-        "raffle:fee:update"
+        "raffle:fee:update",
     ):
         chat_title = context.user_data["raffle_chat_title"]
         start_date = context.user_data["raffle_start_date"]
@@ -369,12 +378,12 @@ async def finish_setup(update: Update, context: ContextTypes.DEFAULT_TYPE) -> in
 
         raffle_id, (start_date, end_date, entry_fee) = get_raffle_stats(chat_id)
         excel_path = f"data/{dm_id}/data.xlsx"
-        df = read_excel_to_df(excel_path, start_date, end_date)
-        raffle_data = RaffleData(start_date, end_date, entry_fee, df)
+        raffle_df = read_excel_to_df(excel_path, start_date, end_date)
+        raffle_data = RaffleData(start_date, end_date, entry_fee, raffle_df)
         update_raffle(raffle_id, raffle_data)
 
         await query.message.edit_text(
-            STRINGS["updated_raffle"] % {"chat_title": chat_title}
+            STRINGS["updated_raffle"] % {"chat_title": chat_title},
         )
         await context.bot.send_message(
             chat_id,
@@ -383,7 +392,7 @@ async def finish_setup(update: Update, context: ContextTypes.DEFAULT_TYPE) -> in
         )
         # perform cleanup
         context.user_data.clear()
-        os.remove(excel_path)
+        Path(excel_path).unlink(missing_ok=True)
 
         return ConversationHandler.END
 
@@ -396,8 +405,8 @@ async def finish_setup(update: Update, context: ContextTypes.DEFAULT_TYPE) -> in
         fee = context.user_data["raffle_fee"]
 
         excel_path = f"data/{dm_id}/data.xlsx"
-        df = read_excel_to_df(excel_path, start_date, end_date)
-        raffle_data = RaffleData(start_date, end_date, fee, df)
+        raffle_df = read_excel_to_df(excel_path, start_date, end_date)
+        raffle_data = RaffleData(start_date, end_date, fee, raffle_df)
         save_raffle(chat_id, user_id, raffle_data)
 
         msg = (
@@ -423,7 +432,7 @@ async def finish_setup(update: Update, context: ContextTypes.DEFAULT_TYPE) -> in
 
         # perform cleanup
         context.user_data.clear()
-        os.remove(excel_path)
+        Path(excel_path).unlink(missing_ok=True)
 
         return ConversationHandler.END
 
@@ -439,10 +448,12 @@ async def finish_setup(update: Update, context: ContextTypes.DEFAULT_TYPE) -> in
         ],
         "raffle_setup_state:start_date": [
             CallbackQueryHandler(
-                setup_start_date, pattern="^raffle:date:start:update.*$"
+                setup_start_date,
+                pattern="^raffle:date:start:update.*$",
             ),
             CallbackQueryHandler(
-                setup_end_date, pattern="^raffle:date:start:confirmed$"
+                setup_end_date,
+                pattern="^raffle:date:start:confirmed$",
             ),
         ],
         "raffle_setup_state:end_date": [
diff --git a/kipubot/handlers/_start_handler.py b/kipubot/handlers/_start_handler.py
index 145ecb5..569ea03 100644
--- a/kipubot/handlers/_start_handler.py
+++ b/kipubot/handlers/_start_handler.py
@@ -1,3 +1,5 @@
+from pathlib import Path
+
 from telegram import Update
 from telegram.ext import CommandHandler, ContextTypes
 
@@ -6,9 +8,9 @@
 
 async def start(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
     if not update.message:
-        return None
+        return
 
-    with open("kipubot/resources/info.png", "rb") as f:
+    with Path("kipubot/resources/info.png").open("rb") as f:
         await update.message.reply_photo(caption=STRINGS["start_prompt"], photo=f)
 
 
diff --git a/kipubot/handlers/_winner_handler.py b/kipubot/handlers/_winner_handler.py
index 0f662e2..ad948c4 100644
--- a/kipubot/handlers/_winner_handler.py
+++ b/kipubot/handlers/_winner_handler.py
@@ -32,7 +32,7 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
         or not update.message.entities
         or not update.message.text
     ):
-        return None
+        return
 
     # only usable by admin, previous winner (in case of typos) and current winner
     # usage: /winner @username
@@ -44,7 +44,7 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
 
     if len(ent) != TWO_ENTITIES or ent[1].type != MessageEntityType.MENTION:
         await update.message.reply_text(STRINGS["invalid_winner_usage"])
-        return None
+        return
 
     username = update.message.text.split(" ")[1][1:]
 
@@ -97,10 +97,12 @@ async def winner(update: Update, _context: ContextTypes.DEFAULT_TYPE) -> None:
         return
 
     await update.message.reply_text(
-        STRINGS["winner_confirmation"] % {"username": username}
+        STRINGS["winner_confirmation"] % {"username": username},
     )
 
 
 winner_handler = CommandHandler(
-    ["voittaja", "winner"], winner, ~filters.ChatType.PRIVATE
+    ["voittaja", "winner"],
+    winner,
+    ~filters.ChatType.PRIVATE,
 )
diff --git a/kipubot/utils.py b/kipubot/utils.py
index 1a32e1d..ac0f44c 100644
--- a/kipubot/utils.py
+++ b/kipubot/utils.py
@@ -1,7 +1,7 @@
 """Utility functions for Kipubot."""
 
-import os
 import re
+from pathlib import Path
 from typing import Any
 
 import matplotlib.dates as mdates  # type: ignore
@@ -71,7 +71,7 @@ async def get_chat_member_opt(chat: Chat, member_id: int) -> ChatMember | None:
         raise
 
 
-def preband(x, xd, yd, p, func):
+def preband(x, xd, yd, p, func):  # noqa: ANN201, ANN001
     """Calculate the prediction band for a curve fit."""
     conf = 0.95
     alpha = 1.0 - conf
@@ -89,13 +89,16 @@ def preband(x, xd, yd, p, func):
     return lpb, upb
 
 
-def fit_timedata(x_series: "pd.Series[Any]", y_series: "pd.Series[Any]"):
+def fit_timedata(  # noqa: ANN201
+    x_series: "pd.Series[Any]",
+    y_series: "pd.Series[Any]",
+):
     """Fit a curve to the data."""
     # ignore the end date in curve fitting
-    x = x_series.values[:-1]
-    y = y_series.values[:-1]
+    x = x_series.to_numpy()[:-1]
+    y = y_series.to_numpy()[:-1]
 
-    def f(x, slope, intercept):
+    def f(x, slope, intercept):  # noqa: ANN001, ANN202
         return slope * x + intercept
 
     popt, pcov = curve_fit(f, x, y)
@@ -137,7 +140,7 @@ def remove_emojis(text: str) -> str:
 
 def validate_excel(excel_path: str) -> bool:
     """Validate that the submitted excel file is in the correct (MP) format."""
-    df = pd.read_excel(
+    mp_excel_df = pd.read_excel(
         excel_path,
         usecols="A,B,D",
         header=None,
@@ -145,29 +148,35 @@ def validate_excel(excel_path: str) -> bool:
         parse_dates=True,
     )
     return (
-        df.size > 0
-        and df["date"].dtype == "datetime64[ns]"
-        and df["name"].dtype == "object"
-        and df["amount"].dtype in ("int64", "float64")
+        mp_excel_df.size > 0
+        and mp_excel_df["date"].dtype == "datetime64[ns]"
+        and mp_excel_df["name"].dtype == "object"
+        and mp_excel_df["amount"].dtype in ("int64", "float64")
     )
 
 
 def read_excel_to_df(
-    excel_path: str, start_date: pd.Timestamp, end_date: pd.Timestamp
+    excel_path: str,
+    start_date: pd.Timestamp,
+    end_date: pd.Timestamp,
 ) -> pd.DataFrame:
     """Read the excel file to a dataframe."""
-    df = pd.read_excel(
+    mobilepay_df = pd.read_excel(
         excel_path,
         usecols="A,B,D",
         header=None,
         names=["date", "name", "amount"],
         parse_dates=True,
     )
-    df.drop(df[df["amount"] <= 0].index, inplace=True)
-    df.drop(df[df["date"] > end_date].index, inplace=True)
-    df.drop(df[df["date"] < start_date].index, inplace=True)
-    df["amount"] = df["amount"] * 100
-    return df
+    mobilepay_df = mobilepay_df.drop(mobilepay_df[mobilepay_df["amount"] <= 0].index)
+    mobilepay_df = mobilepay_df.drop(
+        mobilepay_df[mobilepay_df["date"] > end_date].index,
+    )
+    mobilepay_df = mobilepay_df.drop(
+        mobilepay_df[mobilepay_df["date"] < start_date].index,
+    )
+    mobilepay_df["amount"] = mobilepay_df["amount"] * 100
+    return mobilepay_df
 
 
 def get_raffle_stats(chat_id: int) -> tuple[str, RaffleStatsData]:
@@ -197,19 +206,23 @@ def get_raffle(chat_id: int) -> RaffleData:
         error_text = f"No entries found for chat {chat_id}"
         raise NoEntriesError(error_text)
 
-    df = pd.DataFrame(data={"date": dates, "name": entries, "amount": amounts})
-    df.set_index("date", inplace=True)
-    return RaffleData(start_date, end_date, entry_fee, df)
+    mp_dataframe = pd.DataFrame(
+        data={"date": dates, "name": entries, "amount": amounts},
+    )
+    mp_dataframe = mp_dataframe.set_index("date")
+
+    return RaffleData(start_date, end_date, entry_fee, mp_dataframe)
 
 
 def get_cur_time_hel() -> pd.Timestamp:
-    """Get the current time in Helsinki as a Timestamp."""
-    # take current time in helsinki and convert it to naive time,
-    # as mobilepay times are naive (naive = no timezone specified).
+    """Get the current time in Helsinki as a Timestamp.
+
+    Take current time in helsinki and convert it to naive time,
+    as mobilepay times are naive (naive = no timezone specified).
+    """
     helsinki_tz = pytz.timezone("Europe/Helsinki")
-    cur_time_hel = pd.Timestamp.utcnow().astimezone(helsinki_tz).replace(tzinfo=None)
 
-    return cur_time_hel
+    return pd.Timestamp.utcnow().astimezone(helsinki_tz).replace(tzinfo=None)
 
 
 def save_raffle(
@@ -231,46 +244,46 @@ def update_raffle(
 
 def parse_df_essentials(raffle_data: RaffleData) -> RaffleData:
     """Parse the essentials of a raffle dataframe."""
-    start_date, end_date, fee, df = raffle_data
+    start_date, end_date, fee, mp_dataframe = raffle_data
 
-    df.at[start_date, "amount"] = 0
+    mp_dataframe.loc[start_date, "amount"] = 0
 
-    df["datenum"] = pd.to_numeric(df.index.values)
-    df = df.sort_values("datenum")
-    df["amount"] = df["amount"].cumsum().astype(int)
-    df["unique"] = (~df["name"].duplicated()).cumsum() - 1
+    mp_dataframe["datenum"] = pd.to_numeric(mp_dataframe.index.values)
+    mp_dataframe = mp_dataframe.sort_values("datenum")
+    mp_dataframe["amount"] = mp_dataframe["amount"].cumsum().astype(int)
+    mp_dataframe["unique"] = (~mp_dataframe["name"].duplicated()).cumsum() - 1
 
-    return RaffleData(start_date, end_date, fee, df)
+    return RaffleData(start_date, end_date, fee, mp_dataframe)
 
 
 def parse_expected(raffle_data: RaffleData) -> RaffleData:
     """Parse the expected values of a raffle dataframe."""
-    start_date, end_date, entry_fee, df = parse_df_essentials(raffle_data)
+    start_date, end_date, entry_fee, mp_dataframe = parse_df_essentials(raffle_data)
 
-    df["win_odds"] = 1.0 / df["unique"]
-    df["next_expected"] = (
+    mp_dataframe["win_odds"] = 1.0 / mp_dataframe["unique"]
+    mp_dataframe["next_expected"] = (
         (
-            -entry_fee * (1 - df["win_odds"])
-            + (df["amount"] - entry_fee) * df["win_odds"]
+            -entry_fee * (1 - mp_dataframe["win_odds"])
+            + (mp_dataframe["amount"] - entry_fee) * mp_dataframe["win_odds"]
         )
         .fillna(0)
         .round()
         .astype(int)
     )
 
-    return RaffleData(start_date, end_date, entry_fee, df)
+    return RaffleData(start_date, end_date, entry_fee, mp_dataframe)
 
 
 def parse_graph(raffle_data: RaffleData) -> RaffleData:
     """Parse the graph values of a raffle dataframe."""
-    df = raffle_data.df
-
-    df.at[get_cur_time_hel(), "amount"] = 0
-    df.at[raffle_data.end_date, "amount"] = 0
+    mp_dataframe = raffle_data.df
 
-    parsed_raffle_data = parse_df_essentials(raffle_data._replace(df=df))
+    mp_dataframe.loc[get_cur_time_hel(), "amount"] = 0
+    mp_dataframe.loc[raffle_data.end_date, "amount"] = 0
 
-    return parsed_raffle_data
+    return parse_df_essentials(
+        raffle_data._replace(df=mp_dataframe),
+    )
 
 
 def configure_and_save_plot(out_img_path: str) -> None:
@@ -289,8 +302,7 @@ def configure_and_save_plot(out_img_path: str) -> None:
     ax.yaxis.set_minor_locator(AutoMinorLocator(2))
     plt.grid(visible=True, which="major", axis="both", linestyle="--", linewidth=0.5)
 
-    if not os.path.exists(os.path.dirname(out_img_path)):
-        os.makedirs(os.path.dirname(out_img_path))
+    Path(out_img_path).parent.mkdir(parents=True, exist_ok=True)
 
     plt.savefig(out_img_path)
     plt.clf()
@@ -302,15 +314,18 @@ def generate_graph(out_img_path: str, chat_id: int, chat_title: str) -> None:
     raffle_data = get_raffle(chat_id)
 
     # -- parse and fit data --
-    start_date, end_date, _, df = parse_graph(raffle_data)
-    px, nom, std, lpb, upb = fit_timedata(df["datenum"], df["amount"])
+    start_date, end_date, _, mp_dataframe = parse_graph(raffle_data)
+    px, nom, std, lpb, upb = fit_timedata(
+        mp_dataframe["datenum"],
+        mp_dataframe["amount"],
+    )
 
     # -- plot --
     # clear previous plot in case of leftovers
     plt.clf()
     ax = plt.gca()
     # plot data
-    df["amount"][:-1].plot(ax=ax, marker="o", style="r", label="Pool")
+    mp_dataframe["amount"][:-1].plot(ax=ax, marker="o", style="r", label="Pool")
     # plot regression
     ax.plot(px, nom, "-", color="black", label="y=ax+b")
     # uncertainty lines (95% conf)
@@ -322,14 +337,15 @@ def generate_graph(out_img_path: str, chat_id: int, chat_title: str) -> None:
 
     # -- style graph --
     pred_max_pool = (nom + 1.96 * std)[-1]
-    pool_total = df["amount"].max()
+    pool_total = mp_dataframe["amount"].max()
     plt.ylim(0, max(pred_max_pool, pool_total))
     plt.xlim((pd.to_datetime(start_date), pd.to_datetime(end_date)))
 
     plt.title(
         str(remove_emojis(chat_title).strip())
         + "\n"
-        + f"Entries {df['unique'].max()} | Pool {int_price_to_str(pool_total)} €"
+        + f"Entries {mp_dataframe['unique'].max()}"
+        + f" | Pool {int_price_to_str(pool_total)} €",
     )
     plt.xlabel(None)
     plt.ylabel("Pool (€)")
@@ -343,26 +359,35 @@ def generate_expected(out_img_path: str, chat_id: int, chat_title: str) -> None:
     raffle_data = get_raffle(chat_id)
 
     # -- parse and fit data --
-    start_date, _, entry_fee, df = parse_expected(raffle_data)
+    start_date, _, entry_fee, mp_dataframe = parse_expected(raffle_data)
 
     # -- plot --
     # clear previous plot in case of leftovers
     plt.clf()
     ax = plt.gca()
 
-    df["next_expected"].plot(ax=ax, marker="o", style="r", label="Expected Value")
+    mp_dataframe["next_expected"].plot(
+        ax=ax,
+        marker="o",
+        style="r",
+        label="Expected Value",
+    )
 
     # -- style graph --
     plt.ylim(
-        float(int_price_to_str((df["next_expected"].min() - 100) * 110)),
-        float(int_price_to_str((df["next_expected"].max() + 100) * 110)),
+        float(int_price_to_str((mp_dataframe["next_expected"].min() - 100) * 110)),
+        float(int_price_to_str((mp_dataframe["next_expected"].max() + 100) * 110)),
     )
     plt.xlim((pd.to_datetime(start_date), pd.to_datetime(get_cur_time_hel())))
 
     plt.title(
-        str(remove_emojis(chat_title).strip())
-        + f" | Fee {int_price_to_str(entry_fee)} €\n"
-        + f"Expected Value { int_price_to_str(df['next_expected'].iloc[-1])} €"
+        (
+            f"{remove_emojis(chat_title).strip()}"
+            " | "
+            f"Fee {int_price_to_str(entry_fee)} €\n"
+            "Expected Value "
+            f"{int_price_to_str(mp_dataframe['next_expected'].iloc[-1])} €"
+        ),
     )
     plt.xlabel(None)
     plt.ylabel("Expected Value (€)")
diff --git a/pyproject.toml b/pyproject.toml
index cabb86b..2e34d9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,6 @@ authors = [
 license = "GPL-3.0"
 readme = "README.md"
 
-
 [tool.poe.tasks]
 start = "python3 -m kipubot"
 dev = "watchfiles 'poetry run  poe start' kipubot"
@@ -53,7 +52,6 @@ build-backend = "poetry.core.masonry.api"
 [tool.ruff]
 line-length = 88
 target-version = "py310"
-
 select = [
   "A",
   "B",
@@ -80,14 +78,33 @@ select = [
   "TID",
   "UP",
   "W",
+  "SLF",
   "YTT",
+  "NPY",
+  "ERA",
+  "PD",
+  "PTH",
+  "ARG",
+  "TCH",
+  "RET",
+  "RSE",
+  "PT",
+  "T20",
+  "PIE",
+  "INP",
+  "G",
+  "EXE",
+  "T10",
+  "C4",
+  "COM",
+  "BLE",
+  "ANN",
 ]
 ignore = ["D203", "D213"]
-
 fixable = [
   "A",
   "B",
-  "C90", # C
+  "C90",
   "D",
   "E",
   "F",
@@ -109,6 +126,7 @@ fixable = [
   "FBT",
   "ICN",
   "INP",
+  "T20",
   "ISC",
   "NPY",
   "PD",
@@ -125,13 +143,12 @@ fixable = [
   "SLF",
   "TCH",
   "TID",
-  #"T",
   "TRY",
   "UP",
   "YTT",
+  "C4",
 ]
 unfixable = []
-
 # Exclude a variety of commonly ignored directories.
 exclude = [
   ".bzr",
@@ -155,24 +172,20 @@ exclude = [
   "node_modules",
   "venv",
 ]
-
 # Same as Black.
-
 # Allow unused variables when underscore-prefixed.
 dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
 
-
 [tool.ruff.mccabe]
 # Unlike Flake8, default to a complexity level of 10.
 max-complexity = 10
 
 [tool.ruff.per-file-ignores]
-"tests/*" = ["S101", "D"]
+"tests/*" = ["S101", "D", "ANN"]
 
 [tool.mypy]
 python_version = "3.10"
 plugins = ["pydantic.mypy"]
-
 warn_redundant_casts = true
 warn_unused_ignores = true
 disallow_any_generics = true
@@ -181,7 +194,6 @@ no_implicit_reexport = true
 
 # hopefully switch to strict in the future
 # disallow_untyped_defs = true
-
 [tool.pydantic-mypy]
 init_forbid_extra = true
 init_typed = true
diff --git a/tests/test_utils.py b/tests/test_utils.py
index e6c7325..22a03c3 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 import pytest
 from pandas import Timestamp
 from pandas.testing import assert_frame_equal
@@ -70,9 +68,6 @@ def test_int_price_to_str(self):
 
         assert results == expected_results
 
-        # for case, ex_res in zip(test_cases, expected_results):
-        #    assert int_price_to_str(case) == ex_res
-
     def test_remove_emojis(self):
         assert remove_emojis("💩") == " "
         assert (
@@ -108,8 +103,8 @@ def test_graph_save(self):
         start_date = Timestamp("2022-08-01 03:15:00")
         end_date = Timestamp("2022-08-12 03:15:00")
         entry_fee = 1
-        df = read_excel_to_df(file_path, start_date, end_date)
-        raffle_data = RaffleData(start_date, end_date, entry_fee, df)
+        raffle_dataframe = read_excel_to_df(file_path, start_date, end_date)
+        raffle_data = RaffleData(start_date, end_date, entry_fee, raffle_dataframe)
         save_raffle(1, 1, raffle_data)
         raffle_from_db = get_raffle(1)
         delete_raffle_data(1)
@@ -119,5 +114,5 @@ def test_graph_save(self):
 
         # behavior that get_raffle returns without index and
         # read returns with probably should be changed.
-        df.set_index("date", inplace=True)
-        assert_frame_equal(df, raffle_from_db.df)
+        raffle_dataframe = raffle_dataframe.set_index("date")
+        assert_frame_equal(raffle_dataframe, raffle_from_db.df)