fairnesscoop / permacoop

@CommandHandler(UpdateTaskCommand)

export class UpdateTaskCommandHandler {

  constructor(

    @Inject('ITaskRepository')

    private readonly taskRepository: ITaskRepository,

    private readonly isTaskAlreadyExist: IsTaskAlreadyExist

  ) {}

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

    const { id, name } = command;

    const task = await this.taskRepository.findOneById(id);

    if (!task) {

      throw new TaskNotFoundException();

    }

    if (

      name !== task.getName() &&

      true === (await this.isTaskAlreadyExist.isSatisfiedBy(name))

    ) {

      throw new TaskAlreadyExistException();

    }

    task.updateName(name);

    await this.taskRepository.save(task);