user/src/modules/users/domain/usecases/find-user-by-uuid.usecase.ts

import { NotFoundException } from '@nestjs/common';
import { QueryHandler } from '@nestjs/cqrs';
import { LoggingMessager } from '../../adapters/secondaries/logging.messager';
import { UsersRepository } from '../../adapters/secondaries/users.repository';
import { FindUserByUuidQuery } from '../../queries/find-user-by-uuid.query';
import { User } from '../entities/user';

@QueryHandler(FindUserByUuidQuery)
export class FindUserByUuidUseCase {
  constructor(
    private readonly _repository: UsersRepository,
    private readonly _loggingMessager: LoggingMessager,
  ) {}

  async execute(findUserByUuid: FindUserByUuidQuery): Promise<User> {
    try {
      const user = await this._repository.findOneByUuid(findUserByUuid.uuid);
      if (!user) throw new NotFoundException();
      return user;
    } catch (error) {
      this._loggingMessager.publish(
        'user.read.warning',
        JSON.stringify({
          query: findUserByUuid,
          error,
        }),
      );
      throw error;
    }
  }
}