from flask import Blueprint, jsonify
from flask.views import MethodView


class TaskApiBlueprint(Blueprint):
    """
    Blueprint for the tasks REST API.
    """

    def __init__(self):
        super().__init__('rest_api_tasks', __name__, url_prefix='/tasks')

        self.add_url_rule(
            '/',
            view_func=TaskCollectionView.as_view(TaskCollectionView.__name__),
            methods=['GET', 'POST'],
        )
        self.add_url_rule(
            '/<int:task_id>',
            view_func=TaskItemView.as_view(TaskItemView.__name__),
            methods=['GET', 'PATCH', 'DELETE'],
        )


class TaskCollectionView(MethodView):
    """
    View class for `/tasks` endpoint.
    """

    def get(self):
        """
        Get list of all tasks.
        """
        # TODO: Get actual data
        return jsonify({
            'count': 1,
            'items': [
                {
                    'id': 1,
                    'title': 'Do stuff',
                    'description': '',
                    'status': 'open',
                },
            ],
        }), 200

    def post(self):
        """
        Create a new task.
        """
        # TODO: Implement
        raise NotImplementedError


class TaskItemView(MethodView):
    """
    View class for `/tasks/<int:task_id>` endpoint.
    """

    def get(self, task_id: int):
        """
        Get a single task by ID.
        """
        # TODO: Get actual data
        return jsonify({
            'id': task_id,
            'title': 'Do stuff',
            'description': '',
            'status': 'open',
        }), 200

    def patch(self, task_id: int):
        """
        Update a single task by ID.
        """
        # TODO: Implement
        raise NotImplementedError

    def delete(self, task_id: int):
        """
        Delete a single task by ID.
        """
        # TODO: Implement
        raise NotImplementedError