fairnesscoop / permacoop

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

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

import { ILeaveRequestRepository } from 'src/Domain/HumanResource/Leave/Repository/ILeaveRequestRepository';

import { UpdateLeaveRequestCommand } from './UpdateLeaveRequestCommand';

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

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

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

@CommandHandler(UpdateLeaveRequestCommand)

export class UpdateLeaveRequestCommandHandler {

  constructor(

    @Inject('ILeaveRequestRepository')

    private readonly leaveRequestRepository: ILeaveRequestRepository,

    private readonly doesLeaveRequestBelongToUser: DoesLeaveRequestBelongToUser

  ) {}

  public async execute(command: UpdateLeaveRequestCommand): Promise<string> {

    const {

      id,

      type,

      startDate,

      startsAllDay,

      endDate,

      endsAllDay,

      comment,

      user

    } = command;

    const leaveRequest = await this.leaveRequestRepository.findOneById(id);

    if (!leaveRequest) {

      throw new LeaveRequestNotFoundException();

    }

    if (

      false ===

      this.doesLeaveRequestBelongToUser.isSatisfiedBy(leaveRequest, user)

    ) {

      throw new LeaveRequestCantBeUpdatedException();

    }

    leaveRequest.update(

      type,

      startDate,

      startsAllDay,

      endDate,

      endsAllDay,

      comment

    );

    await this.leaveRequestRepository.save(leaveRequest);

    return leaveRequest.getId();

  }

}