Codehub Telegram Bot (V2.0)

English | فارسی

An interface using telegram API, via "python-telegram-bot" library to add, find and share pastes.

Requirements

here are required libraries listed in requirements.txt:

python-telegram-bot
python-dotenv
peewee

Usage

install the requirements:
```
pip install -r requirements.txt
```
create a .env file (alongside the main.py file), with this content:
```
TOKEN="..."
WEBHOOK="..."
```
set TOKEN to your bot token. you can get the token from @botfather in telegram.

if you need to use webhook, set WEBHOOK to the url. otherwise, don't change it (WEBHOOK="").
fire!
```
python3 main.py
```
you may use something like tmux if you're not using webhook.

note: this program uses sqlite3 to save users, chats and pastes. you can change it from src/model/__init__.py. check peewee doc.

Contributing

there are many files here; however, you just need to check 2 parts:

src/handler

this folder contains any handler that you need. each handler has a folder in this form: src/handler/<NAME>. the handler will be written in src/handler/<NAME>/__init__.py. in this file, you should make a function named creator(model). model is the imported object of src/model. this function receives this parameter, then only returns the handler. you can make a lot of this folders to write your handlers in them.

for example, we imagine a handler to handle /start command. you will make a folder and a file like src/handler/my_start_handler/__init__.py. then, you'll open this file, and write something like this:
```
from telegram.ext import CommandHandler, CallbackContext
from telegram import Update

def your_function(update: Update, context: CallbackContext):
    update.message.reply_text("hello!")

def creator(model):
    return CommandHandler("start", your_function)
```
however, you may want to use an attribute from src/model, like HELLO_TEXT. I suggest you to make a function to pass model. this function is written at src/handler/functions.py. so, you can use it like this:
```
from telegram.ext import CommandHandler, CallbackContext
from telegram import Update
from ..function import pass_model_to

def your_function(update: Update, context: CallbackContext, model):
    update.message.reply_text(model.HELLO_TEXT)

def creator(model):
    return CommandHandler("start", pass_model_to(your_function, model))
```
if you have some functions/classes that you want to use them in many handlers, you can put them in src/handler/functions.py, then, import them.

when your handler is completed, you should import its creator in src/handler/__init__.py, and add it to CREATORS tuple. for example, if you want to add that my_start_handler, OK? so, add this line to src/handler/__init__.py:
```
from my_start_handler import creator as my_start_handler_creator
```
as you can see, when you add <NAME> handler, it's better to change its creator name to <NAME>_creator (from <NAME> import creator as <NAME>_creator).then, add it to the CREATORS tuple.

imagine that you have 3 hanlders:
1. hanlder1 (src/hanlder/hanlder1)
2. hanlder2 (src/hanlder/hanlder2)
3. hanlder3 (src/hanlder/hanlder3)
then, you should write src/hanlder/__init__.py like this:
```
from handler1 import creator as handler1_creator
from handler2 import creator as handler2_creator
from handler3 import creator as handler3_creator
# from your_new_handler import creaotr as your_new_hanlder_creator

CREATORS = (
    handler1_creator,
    handler2_creator,
    handler3_creator,
    # your_new_hanlder_creator,
)

# don't change it, don't remove it, don't see it, and don't think about it at all!
def get_handlers(model):
    for creator in CREATORES:
        yield creator(model)
```
note: if you don't add it, then the handler won't be added to the dispatcher. if your handler is not executed, maybe that's because you didn't add it here!
src/model

this part provides any data about languages, database, etc. for now, it contains the database part, and language part. it is imported and passed to the handlers creator (model parameter at creator(model), remember?). for example, if you define EXAMPLE = 123 at src/model/__init__.py, you can use it in model parameter as model.EXAMPLE.

License

codehub-ir/codehub-bot

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