zod-backend/src/junior/services/junior-token.service.ts

import { BadRequestException, Injectable, Logger } from '@nestjs/common';
import { JuniorTokenRepository } from '../repositories';
import { QrcodeService } from './qrcode.service';

@Injectable()
export class JuniorTokenService {
  private readonly logger = new Logger(JuniorTokenService.name);
  constructor(
    private readonly juniorTokenRepository: JuniorTokenRepository,
    private readonly qrCodeService: QrcodeService,
  ) {}
  async generateToken(juniorId: string): Promise<string> {
    this.logger.log(`Generating token for junior ${juniorId}`);
    const tokenEntity = await this.juniorTokenRepository.generateToken(juniorId);
    this.logger.log(`Token generated successfully for junior ${juniorId}`);
    return this.qrCodeService.generateQrCode(tokenEntity.token);
  }

  async validateToken(token: string) {
    this.logger.log(`Validating token ${token}`);
    const tokenEntity = await this.juniorTokenRepository.findByToken(token);

    if (!tokenEntity) {
      this.logger.error(`Token ${token} not found`);
      throw new BadRequestException('TOKEN.INVALID');
    }

    if (tokenEntity.expiryDate < new Date()) {
      this.logger.error(`Token ${token} expired`);
      throw new BadRequestException('TOKEN.EXPIRED');
    }

    this.logger.log(`Token validated successfully`);
    return tokenEntity.juniorId;
  }

  invalidateToken(token: string) {
    this.logger.log(`Invalidating token ${token}`);
    return this.juniorTokenRepository.invalidateToken(token);
  }
}