import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { DeleteResult, Repository, UpdateResult } from 'typeorm';
import { CreateProductDto } from './dto/create-product.dto';
import { UpdateProductDto } from './dto/update-product.dto';
import { Product } from './entities/product.entity';

@Injectable()
export class ProductsService {
  constructor(
    @InjectRepository(Product)
    private readonly productsRepository: Repository<Product>,
  ) {}

  async create(createProductDto: CreateProductDto): Promise<Product> {
    return await this.productsRepository.save(createProductDto);
  }

  async findAll(): Promise<Product[]> {
    return await this.productsRepository.find();
  }

  async findOne(id: string): Promise<Product> {
    return await this.productsRepository.findOne(id);
  }

  async update(
    id: string,
    updateProductDto: UpdateProductDto,
  ): Promise<UpdateResult> {
    return await this.productsRepository.update(id, updateProductDto);
  }

  async remove(id: string): Promise<DeleteResult> {
    return await this.productsRepository.softDelete(id);
  }

  async checkIfProductsExist(productIds: string[]): Promise<Product[]> {
    return await this.productsRepository.findByIds(productIds);
  }
}