fairnesscoop / pictyschool

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

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

import { UserNotFoundException } from 'src/Domain/User/Exception/UserNotFoundException';

import { IUserRepository } from 'src/Domain/User/Repository/IUserRepository';

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

import { GetUserByIdQuery } from './GetUserByIdQuery';

@QueryHandler(GetUserByIdQuery)

export class GetUserByIdQueryHandler {

  constructor(

    @Inject('IUserRepository')

    private readonly userRepository: IUserRepository

  ) {}

  public async execute(query: GetUserByIdQuery): Promise<UserView> {

    const user = await this.userRepository.findOneById(query.id);

    if (!user) {

      throw new UserNotFoundException();

    }

    return new UserView(

      user.getId(),

      user.getFirstName(),

      user.getLastName(),

      user.getEmail(),

      user.getRole()

    );

  }

}