fairnesscoop / permacoop

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

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

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

import { LeaveRequestNotFoundException } from 'src/Domain/HumanResource/Leave/Exception/LeaveRequestNotFoundException';

import { LeaveRequestRepository } from 'src/Infrastructure/HumanResource/Leave/Repository/LeaveRequestRepository';

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

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

import { GetLeaveRequestByIdQuery } from './GetLeaveRequestByIdQuery';

import { CanLeaveRequestBeCancelled } from 'src/Domain/HumanResource/Leave/Specification/CanLeaveRequestBeCancelled';

@QueryHandler(GetLeaveRequestByIdQuery)

export class GetLeaveRequestByIdQueryHandler {

  constructor(

    @Inject('ILeaveRequestRepository')

    private readonly leaveRequestRepository: LeaveRequestRepository,

    @Inject('IDateUtils')

    private readonly dateUtils: IDateUtils,

    private readonly canLeaveRequestBeCancelled: CanLeaveRequestBeCancelled

  ) {}

  public async execute(

    query: GetLeaveRequestByIdQuery

  ): Promise<LeaveRequestDetailView> {

    const leaveRequest = await this.leaveRequestRepository.findOneById(

      query.id

    );

    if (!leaveRequest) {

      throw new LeaveRequestNotFoundException();

    }

    const user = leaveRequest.getUser();

    const moderator = leaveRequest.getModerator();

    let moderatorView: UserSummaryView;

    if (moderator) {

      moderatorView = new UserSummaryView(

        moderator.getId(),

        moderator.getFirstName(),

        moderator.getLastName()

      );

    }

    return new LeaveRequestDetailView(

      leaveRequest.getId(),

      leaveRequest.getType(),

      leaveRequest.getStatus(),

      leaveRequest.getStartDate(),

      leaveRequest.isStartsAllDay(),

      leaveRequest.getEndDate(),

      leaveRequest.isEndsAllDay(),

      this.dateUtils.getLeaveDuration(

        leaveRequest.getStartDate(),

        leaveRequest.isStartsAllDay(),

        leaveRequest.getEndDate(),

        leaveRequest.isEndsAllDay()

      ),

      this.canLeaveRequestBeCancelled.isSatisfiedBy(

        query.currentUser,

        leaveRequest

      ),

      leaveRequest.getComment(),

      new UserSummaryView(

        user.getId(),

        user.getFirstName(),

        user.getLastName()

      ),

      moderatorView,

      leaveRequest.getModerateAt(),

      leaveRequest.getModerationComment()

    );

  }

}