from flask_smorest import abort
from flask.views import MethodView
import marshmallow as ma

from database import Database
from . import routes_requests as blp

db = Database.get_instance().db

class UuidSchema(ma.Schema):
    uuid = ma.fields.String(description="UUID of the request", example="3f6dd2e5-8cb1-4ce0-82e4-b68edf4ce37a")

class RequestsInteraction(ma.Schema):
    status = ma.fields.String()

class RequestsInteractionDelete(ma.Schema):
    status = ma.fields.String(example="Request 3f6dd2e5-8cb1-4ce0-82e4-b68edf4ce37a was deleted.")

@blp.route("/<string:uuid>")
class InteractRequest(MethodView):
    @blp.doc(summary="Returns a specific request by its UID")
    @blp.arguments(UuidSchema, location='path', as_kwargs=True)
    @blp.response(200, RequestsInteraction, description="Successful operation")
    @blp.alt_response(404)
    def get(self, uuid):
        response = db.at("requests", key=uuid).read()
        if response is None:
            abort(404, message=f"Request {uuid} does not exist.")
        return response

    @blp.doc(summary="Deletes a specific request by its UID")
    @blp.arguments(UuidSchema, location='path', as_kwargs=True)
    @blp.response(200, RequestsInteractionDelete, description="Successful operation")
    @blp.alt_response(404)
    def delete(self, uuid):
        if not db.at("requests", key=uuid).exists():
            abort(404, message=f"Request {uuid} does not exist.")
        with db.at("requests").session() as (session, requests):
            del requests[uuid]
            session.write()
        response = {
            "status": f"Request {uuid} was deleted."
        }
        return response