import { Injectable } from '@nestjs/common';
import { UsersService } from '../users/users.service';
import { hashPassword } from '../helper/hash_password';
import { JwtService } from '@nestjs/jwt';
import { User } from '../users/entities/user.entity';

@Injectable()
export class AuthService {
  constructor(
    private usersService: UsersService,
    private jwtService: JwtService,
  ) {}

  async validateUser(username: string, pass: string): Promise<any> {
    const user = await this.usersService.findOneByUsername(username);

    if (user && user.password === (await hashPassword(pass, user.salt))) {
      const { password, ...result } = user;

      return result;
    }

    return null;
  }

  async login(user: User) {
    const payload = {
      username: user.username,
      sub: user.id,
      role: user.roles.name,
      partner: user.partner?.id,
    };

    return {
      access_token: this.jwtService.sign(payload),
    };
  }

  getProfile = async (userId: string) => {
    return this.usersService.findOne(userId);
  };
}