import { Injectable, NotFoundException } from '@nestjs/common';
import { CreateRestaurantDto } from './dto/create-restaurant.dto';
import { UpdateRestaurantDto } from './dto/update-restaurant.dto';
import { Restaurant } from './entities/restaurant.entity';
import { EntityManager } from '@mikro-orm/postgresql';
import { RestRepository } from './repositories/rest.repository';
import { RestMessage } from 'src/common/enums/message.enum';

@Injectable()
export class RestaurantsService {
  constructor(
    private readonly em: EntityManager,
    private readonly restRepository: RestRepository,
  ) {}

  async create(dto: CreateRestaurantDto): Promise<Restaurant> {
    const restaurant = this.em.create(Restaurant, {
      ...dto,
      isActive: true,
    });

    await this.em.persistAndFlush(restaurant);
    return restaurant;
  }

  findAll() {
    return this.restRepository.findAll();
  }

  async findBySlug(slug: string): Promise<Restaurant> {
    const restaurant = await this.em.findOne(Restaurant, { slug });

    if (!restaurant) {
      throw new NotFoundException(`Restaurant with slug "${slug}" not found`);
    }

    return restaurant;
  }

  async update(id: string, dto: UpdateRestaurantDto): Promise<Restaurant> {
    const restaurant = await this.restRepository.findOne({ id });

    if (!restaurant) {
      throw new NotFoundException(RestMessage.NOT_FOUND);
    }

    this.restRepository.assign(restaurant, dto);

    await this.em.persistAndFlush(restaurant);

    return restaurant;
  }

  remove(id: number) {
    return `This action removes a #${id} restaurant`;
  }
}