Crow - Tsz Tin Vivian Soo

app/__init__.py

@@ -1,6 +1,8 @@
 from flask import Flask
 from .db import db, migrate
 from .models import task, goal
+from .routes.task_routes import bp as tasks_bp 
+from .routes.goal_routes import bp as goals_bp
 import os
 
 def create_app(config=None):
@@ -18,5 +20,7 @@ def create_app(config=None):
     migrate.init_app(app, db)
 
     # Register Blueprints here
+    app.register_blueprint(tasks_bp)
+    app.register_blueprint(goals_bp)
 
     return app

app/models/goal.py

@@ -1,5 +1,26 @@
-from sqlalchemy.orm import Mapped, mapped_column
+from sqlalchemy.orm import Mapped, mapped_column, relationship
 from ..db import db
+from typing import TYPE_CHECKING
+if TYPE_CHECKING:
+    from .task import Task
+
+
 
 class Goal(db.Model):
     id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    title: Mapped[str]
+    tasks: Mapped[list["Task"]] = relationship(back_populates="goal")
+
+    @classmethod
+    def from_dict(cls, goal_dict):
+        """Create a Goal instance from a dictionary."""
+        return cls(
+            title=goal_dict["title"]
+        )
+
+    def to_dict(self):
+        """Return a dictionary representation of the Goal."""
+        return {
+            "id": self.id,
+            "title": self.title
+        }

app/models/task.py

@@ -1,5 +1,43 @@
-from sqlalchemy.orm import Mapped, mapped_column
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from sqlalchemy import ForeignKey, DateTime
 from ..db import db
+from datetime import datetime
+from typing import Optional, TYPE_CHECKING
+if TYPE_CHECKING:
+    from .goal import Goal
+
 
 class Task(db.Model):
     id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    title: Mapped[str]
+    description: Mapped[str]
+    completed_at: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)
+    goal_id: Mapped[Optional[int]] = mapped_column(ForeignKey("goal.id"))
+    goal: Mapped[Optional["Goal"]] = relationship(back_populates="tasks")
+
+    @classmethod
+    def from_dict(cls, task_dict):
+        """Create a Task instance from a dictionary."""
+        goal_id = task_dict.get("goal_id")
+        is_complete = task_dict.get("is_complete", False)
+        completed_at = datetime.now() if is_complete else None
+
+        return cls(
+            title=task_dict["title"],
+            description=task_dict["description"],
+            completed_at=completed_at,
+            goal_id=goal_id
+        )
+
+    def to_dict(self):
+        """Return a dictionary representation of the Task."""
+        task_dict = {
+            "id": self.id,
+            "title": self.title,
+            "description": self.description,
+            "is_complete": self.completed_at is not None
+        }
+        if self.goal:
+            task_dict["goal_id"] = self.goal.id
+
+        return task_dict

app/routes/goal_routes.py

@@ -1 +1,93 @@
-from flask import Blueprint
+from flask import Blueprint
+from .route_utilities import validate_model, create_model, get_models_with_filters
+from app.models.goal import Goal
+from app.models.task import Task
+from ..db import db
+from flask import request, make_response, abort, Response
+bp = Blueprint("goals_bp", __name__, url_prefix="/goals")
+
+@bp.post("")
+def create_goal():
+    request_body = request.get_json()
+    return create_model(Goal, request_body)
+
+@bp.get("")
+def get_all_goals():
+    return get_models_with_filters(Goal, 
+                                   sort=request.args.get("sort"),
+                                   title=request.args.get("title"))
+
+@bp.get("/<goal_id>")
+def get_goal(goal_id):
+    goal = validate_model(Goal, goal_id)
+
+    response = goal.to_dict()
+
+    return response
+
+
+@bp.put("/<goal_id>")
+def update_goal(goal_id):
+    goal = validate_model(Goal, goal_id)
+
+    request_body = request.get_json()
+
+    goal.title = request_body["title"]
+
+    db.session.commit()
+
+    return Response(status=204, mimetype="application/json")
+
+@bp.delete("/<goal_id>")
+def delete_goal(goal_id):
+    goal = validate_model(Goal, goal_id)
+
+    db.session.delete(goal)
+    db.session.commit()
+
+    return Response(status=204, mimetype="application/json")
+
+@bp.post("/<goal_id>/tasks")
+def create_tasks_for_goal(goal_id):
+    goal = validate_model(Goal, goal_id)
+
+    # retrieve python dictionary from request body
+    request_body = request.get_json()
+
+    # get list of task ids from dictionary
+    task_ids = request_body.get("task_ids", [])
+
+    for task in goal.tasks:
+        task.goal = None
+        task.goal_id = None
+
+    # associate each task with the goal
+    for task_id in task_ids:
+        task = validate_model(Task, task_id)
+        task.goal = goal
+        task.goal_id = goal.id
+
+
+    # commit the changes to the database
+    db.session.commit()
+
+
+    response = {
+        "id": goal.id,
+        "task_ids": task_ids
+    }
+
+    return response, 200
+
+@bp.get("/<goal_id>/tasks")
+def get_tasks_of_one_goal(goal_id):
+    goal = validate_model(Goal, goal_id)
+    tasks = [task.to_dict() for task in goal.tasks]
+
+    response = {
+        "id": goal.id,
+        "title": goal.title,
+        "tasks": tasks
+    }
+
+    return response, 200

app/routes/route_utilities.py

@@ -0,0 +1,64 @@
+from flask import abort, make_response
+from ..db import db
+
+def validate_model(cls, model_id):
+    """Retrieves a model instance by ID or aborts with 400/404."""
+    try:
+        model_id = int(model_id)
+    except:
+        response = {"message": f"{cls.__name__} {model_id} invalid"}
+        abort(make_response(response, 400))
+
+    query = db.select(cls).where(cls.id == model_id)
+    model = db.session.scalar(query)
+
+    if not model:
+        response = {"message": f"{cls.__name__} {model_id} not found"}
+        abort(make_response(response, 404))
+
+    return model
+
+
+def create_model(cls, model_data):
+    try:
+        new_model = cls.from_dict(model_data)
+    except KeyError:
+        response = {"details": "Invalid data"}
+        abort(make_response(response, 400))
+
+    db.session.add(new_model)
+    db.session.commit()
+
+    response = new_model.to_dict()
+
+    return response, 201
+
+def get_models_with_filters(cls, sort=None, title=None, description=None):
+    """Return list of model dicts, optionally sorted and filtered.
+
+    If the requested filter/sort field doesn't exist on `cls`, the function will
+    ignore that filter/sort and return unfiltered/unordered results (i.e. "just return all").
+    """
+    query = db.select(cls)
+
+    # Apply filter using getattr; if the attribute doesn't exist, ignore the filter
+    if title:
+        attr = getattr(cls, "title", None)
+        if attr is not None:
+            query = query.where(attr.ilike(f"%{title}%"))
+
+    if description:
+        attr = getattr(cls, "description", None)
+        if attr is not None:
+            query = query.where(attr.ilike(f"%{description}%"))
+
+    if sort == "asc":
+        query = query.order_by(cls.title.asc())
+    else:
+        query = query.order_by(cls.title.desc())
+
+    models = db.session.scalars(query)
+
+    response = [model.to_dict() for model in models]
+
+    return response

app/routes/task_routes.py

@@ -1 +1,85 @@
-from flask import Blueprint
+from flask import Blueprint, abort, make_response, request, Response
+from app.models.task import Task
+from ..db import db
+from datetime import datetime
+import requests
+import os
+from .route_utilities import validate_model, create_model, get_models_with_filters
+
+path = "https://slack.com/api/chat.postMessage"
+token = os.environ.get("SLACK_API_TOKEN")
+
+
+bp = Blueprint("tasks_bp", __name__, url_prefix="/tasks")
+
+
+
+@bp.post("")
+def create_task():
+    """Create a task with the data from the request body."""
+    request_body = request.get_json()
+    return create_model(Task, request_body)
+
+@bp.get("")
+def get_all_tasks():
+    return get_models_with_filters(Task, 
+                                   sort=request.args.get("sort"),
+                                   title=request.args.get("title"),
+                                   description=request.args.get("description"))
+
+
+@bp.get("/<task_id>")
+def get_task(task_id):
+    task = validate_model(Task, task_id)
+
+    response = task.to_dict()
+
+    return response
+
+@bp.put("/<task_id>")
+def update_task(task_id):
+    task = validate_model(Task, task_id)
+
+    request_body = request.get_json()
+
+    task.title = request_body["title"]
+    task.description = request_body["description"]
+    task.completed_at = request_body.get("completed_at")
+
+    db.session.commit()
+
+    return Response(status=204, mimetype="application/json")
+
+@bp.patch("/<task_id>/mark_complete")
+def mark_task_complete(task_id):
+    task = validate_model(Task, task_id)
+    task.completed_at = datetime.now()
+    db.session.commit()
+
+    query_params = {
+        "channel": "#test-slack-api",
+        "text": f"Someone just completed the task {task.title}"
+    }
+
+    headers = {"Authorization": f"Bearer {token}"}
+
+    requests.post(path, json=query_params, headers=headers)
+
+    return Response(status=204, mimetype="application/json")
+
+@bp.patch("/<task_id>/mark_incomplete")
+def mark_task_incomplete(task_id):
+    task = validate_model(Task, task_id)
+    task.completed_at = None
+    db.session.commit() 
+
+    return Response(status=204, mimetype="application/json")
+
+@bp.delete("/<task_id>")
+def delete_task(task_id):
+    task = validate_model(Task, task_id)
+
+    db.session.delete(task)
+    db.session.commit()
+
+    return Response(status=204, mimetype="application/json")

migrations/README

@@ -0,0 +1 @@
+Single-database configuration for Flask.

migrations/alembic.ini

@@ -0,0 +1,50 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S