fairnesscoop / permacoop

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

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

import { DeleteLeaveRequestCommand } from './DeleteLeaveRequestCommand';

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

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

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

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

@CommandHandler(DeleteLeaveRequestCommand)

export class DeleteLeaveRequestCommandHandler {

  constructor(

    @Inject('ILeaveRequestRepository')

    private readonly leaveRequestRepository: ILeaveRequestRepository,

    private readonly doesLeaveRequestBelongToUser: DoesLeaveRequestBelongToUser

  ) {}

  public async execute(command: DeleteLeaveRequestCommand): Promise<void> {

    const { owner, id } = command;

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

    if (!leaveRequest) {

      throw new LeaveRequestNotFoundException();

    }

    if (

      false ===

      this.doesLeaveRequestBelongToUser.isSatisfiedBy(leaveRequest, owner)

    ) {

      throw new LeaveRequestCantBeRemovedException();

    }

    this.leaveRequestRepository.remove(leaveRequest);

  }

}