import { Injectable, UnauthorizedException } from '@nestjs/common';
import { JwtService } from '@nestjs/jwt';
import { UsersService } from '../users/users.service';
import * as bcrypt from 'bcrypt'

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

  async validateUser(email: string, pass: string): Promise<any> {
    const user = await this.userService.findByMail(email);
    if (bcrypt.compareSync(pass, user.password)) {
      const { ...result } = user;
      return result;
    }
    return null;
  }

  async login(user: any) {
    const payload = { username: user.email, sub: user.id };
    return {
      access_token: this.jwtService.sign(payload),
    };
  }
}