fairnesscoop / pictyschool

import { Inject } from '@nestjs/common';

import { IProductRepository } from '../Repository/IProductRepository';

import { Product } from '../Product.entity';

export class IsProductAlreadyExist {

  constructor(

    @Inject('IProductRepository')

    private readonly productRepository: IProductRepository

  ) {}

  public async isSatisfiedBy(title: string): Promise<boolean> {

    return (

      (await this.productRepository.findOneByTitle(title)) instanceof Product

    );

  }

}