import { createSelector } from "reselect";
import { CookingSession } from "@spendcook/api";
import selectEntities from "./selectEntities";
import { denormalize } from "normalizr";
import { cookingSessionsSchema } from "../entities";
import { State } from "../types";
import moment from "moment";

const selectAllCookingSessions = createSelector(
  [selectEntities],
  (entities) =>
    denormalize(
      Object.keys(entities.cookingSessions),
      cookingSessionsSchema,
      entities
    ) as CookingSession[]
);

const getDate = (_: State, date: Date) => date;

export default createSelector(
  [selectAllCookingSessions, getDate],
  (cookingSessions, day: Date) => {
    const timestamp = moment(day).startOf("day").valueOf();
    return cookingSessions.filter(({ date }) => {
      return moment(date).startOf("day").valueOf() === timestamp;
    });
  }
);