fairnesscoop / permacoop

export class GetFairCalendarOverview {

  public index(items: ICalendar[]): ICalendarOverview {

    const itemsByDate = [];

    const overview: ICalendarOverview = {

      mission: 0,

      dojo: 0,

      formationConference: 0,

      leave: 0,

      support: 0,

      other: 0,

      mealTicket: 0

    };

    for (const item of items) {

      const dayIndex = new Date(item.getDate()).getDate() - 1;

      const time = item.getTime() / 100;

      const type = item.getType().startsWith('leave_') ? 'leave' : item.getType();

      if (itemsByDate[dayIndex]) {

        itemsByDate[dayIndex].push({ time, type });

      } else {

        itemsByDate[dayIndex] = [{ time, type }];

      }

      overview[type] += time;

    }

    return {

      ...overview,

      mealTicket: this.getNumberOfMealTickets(Object.values(itemsByDate))

    };

  }

  public getNumberOfMealTickets(itemsByDate: any[]): number {

    let mealTicket = 0;

    for (const sortedEvent of itemsByDate) {

      let totalPerDay = 0;

      for (const { time, type } of sortedEvent) {

        if (type !== EventType.OTHER && 'leave' !== type) {

          totalPerDay += time;

        }

      }

      if (totalPerDay > 0.5) {

        mealTicket++;

      }

    }

    return mealTicket;