fairnesscoop / permacoop

import {QueryHandler} from '@nestjs/cqrs';

import {GetHolidaysQuery} from './GetHolidaysQuery';

import {Inject} from '@nestjs/common';

import {IHolidayRepository} from 'src/Domain/HumanResource/Holiday/Repository/IHolidayRepository';

import {IDateUtils} from 'src/Application/IDateUtils';

import {HolidayView} from '../View/HolidayView';

import {UserSummaryView} from '../../User/View/UserSummaryView';

import {Pagination} from 'src/Application/Common/Pagination';

@QueryHandler(GetHolidaysQuery)

export class GetHolidaysQueryHandler {

  constructor(

    @Inject('IHolidayRepository')

    private readonly holidayRepository: IHolidayRepository,

    @Inject('IDateUtils')

    private readonly dateUtils: IDateUtils

  ) {}

  public async execute(

    query: GetHolidaysQuery

  ): Promise<Pagination<HolidayView>> {

    const holidayViews: HolidayView[] = [];

    const [holidays, total] = await this.holidayRepository.findHolidays(

      query.page

    );

    for (const holiday of holidays) {

      const user = holiday.getUser();

      let duration = this.dateUtils.getWorkedDaysDuringAPeriod(

        new Date(holiday.getStartDate()),

        new Date(holiday.getEndDate())

      ).length;

      if (false === holiday.isStartsAllDay()) {

        duration -= 0.5;

      }

      if (false === holiday.isEndsAllDay()) {

        duration -= 0.5;

      }

      holidayViews.push(

        new HolidayView(

          holiday.getId(),

          holiday.getLeaveType(),

          holiday.getStatus(),

          holiday.getStartDate(),

          holiday.getEndDate(),

          duration,

          new UserSummaryView(

            user.getId(),

            user.getFirstName(),

            user.getLastName()

          )

        )

      );

    }

    return new Pagination<HolidayView>(holidayViews, total);

  }

}