import { EntityRepository, Repository } from 'typeorm';
import { User } from './user.entity';
import { Optional } from 'typescript-optional';

@EntityRepository(User)
export class UserRepository extends Repository<User> {
  async findOneById(id: number): Promise<Optional<User>> {
    return Optional.ofNullable(
      await this.findOne(id, { relations: ['roles'] }),
    );
  }

  async hasUserWithMatchingEmail(email: string): Promise<boolean> {
    return (await this.count({ where: { email } })) === 1;
  }

  async findOneWithEmail(email: string): Promise<Optional<User>> {
    return Optional.ofNullable(
      await this.findOne({ email: email.toLowerCase() }),
    );
  }
}