user.service.ts

import { Injectable, NotFoundException } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { User } from './user.entity';
import { Repository } from 'typeorm';
import { Args } from '@nestjs/graphql';
import { UsersArgs } from './dto/users.args';
import { ResourceArgs } from '../common/dto/resource.args';
import { UserArgs } from './dto/user.args';
import { AuthArgs } from '../auth/dto/auth.args';

@Injectable()
export class UserService {
    constructor(@InjectRepository(User) private readonly repository: Repository<User>) {}

    async one(@Args() resource: ResourceArgs){
      const entity = await this.repository.findOne(resource.id);
      if (!entity) {
        throw new NotFoundException(resource.id);
      }
      return entity;
    }

    async all(@Args() userArgs: UsersArgs){
      return this.repository.find();
    }

    async persist(@Args() input: UserArgs): Promise<User> {
      return await this.repository.save(input);
    }

    async delete(@Args() resource: ResourceArgs): Promise<User> {
      const entity = await this.one(resource);

      await this.repository.delete( entity );

      return entity;
    }

    async oneBy(args: object): Promise<User>{
      return await this.repository.findOneOrFail(args); 
    }

    async oneByEmailOrUsername(args: AuthArgs): Promise<User>{
      return await this.repository.findOneOrFail( { where: [ { email: args.username }, { username: args.username } ] })
    }
}