/*
 * Copyright © 2024 Hexastack. All rights reserved.
 *
 * Licensed under the GNU Affero General Public License v3.0 (AGPLv3) with the following additional terms:
 * 1. The name "Hexabot" is a trademark of Hexastack. You may not use this name in derivative works without express written permission.
 * 2. All derivative works must include clear attribution to the original creator and software, Hexastack and Hexabot, in a prominent location (e.g., in the software's "About" section, documentation, and README file).
 */

import { Injectable, UnauthorizedException } from '@nestjs/common';
import { PassportStrategy } from '@nestjs/passport';
import { Strategy } from 'passport-local';

import { AuthService } from '../../services/auth.service';

@Injectable()
export class LocalStrategy extends PassportStrategy(Strategy) {
  constructor(private readonly authService: AuthService) {
    super({
      usernameField: 'identifier',
    });
  }

  async validate(username: string, password: string): Promise<any> {
    const user = await this.authService.validateUser(username, password);

    if (!user) {
      throw new UnauthorizedException('Unable to login, check credentials');
    }

    return Object.entries(user)
      .filter(
        ([field]) => !field.startsWith('_') && !field.startsWith('password'),
      )
      .reduce(
        (acc, [field, value]) => ({
          ...acc,
          ...{ [field]: value },
        }),
        {},
      );
  }
}