from flask_restful import Resource
from flask import session, Response, request
import uuid

from src.services import BasketService


class Basket(Resource):
    basket_service = BasketService()

    def get_session_id():
        # first interaction with server sets session_id
        # would need to research if this is ideal
        return str(uuid.uuid4())

    def get(self):
        if "session_id" not in session:
            session["session_id"] = self.get_session_id()
        return Response(
            {"total": self.basket_service.total()}, mimetype="application/json"
        )

    def post(self):
        # expects something similar: {"items": [{"item_id": abc002}]}

        if "session_id" not in session:
            session["session_id"] = self.get_session_id()
        jsonData = request.get_json(force=True)
        for entry in jsonData["items"]:
            self.basket_service.scan(entry["item_id"])
        return Response(HTTPStatus=201)