import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { EntityManager, Repository } from 'typeorm';
import { RoleEntity } from '../entities/role.entity';

@Injectable()
export class RolesRepository {
  constructor(
    @InjectRepository(RoleEntity) private readonly repo: Repository<RoleEntity>,
  ) {}

  findByName(
    name: string,
    manager?: EntityManager,
  ): Promise<RoleEntity | null> {
    return (manager?.getRepository(RoleEntity) ?? this.repo).findOne({
      where: { name },
    });
  }

  findById(id: string, manager?: EntityManager): Promise<RoleEntity | null> {
    return (manager?.getRepository(RoleEntity) ?? this.repo).findOne({
      where: { id },
      relations: { users: true, permissions: true },
    });
  }

  list(): Promise<RoleEntity[]> {
    return this.repo.find({
      order: { name: 'ASC' },
      relations: { users: true },
    });
  }

  save(role: RoleEntity, manager?: EntityManager): Promise<RoleEntity> {
    return (manager?.getRepository(RoleEntity) ?? this.repo).save(role);
  }

  remove(role: RoleEntity, manager?: EntityManager): Promise<RoleEntity> {
    return (manager?.getRepository(RoleEntity) ?? this.repo).remove(role);
  }
}