api-server/src/modules/review/review.service.ts

import { Injectable, NotFoundException } from '@nestjs/common';
import { ReviewRepository } from './review.repository';
import { SubmitReviewDto } from './dto/submit-review.dto';

@Injectable()
export class ReviewService {
  constructor(private readonly reviewRepository: ReviewRepository) {}

  async getDueCards(userId: string) {
    return this.reviewRepository.findDueCards(userId);
  }

  async submitReview(userId: string, id: string, dto: SubmitReviewDto) {
    const card = await this.reviewRepository.findById(id);
    if (!card) throw new NotFoundException(`Review card ${id} not found`);
    const log = await this.reviewRepository.insertLog({
      userId,
      reviewCardId: id,
      rating: dto.rating,
      responseText: dto.responseText,
    });
    await this.reviewRepository.updateCard(id, {
      status: 'reviewed',
      nextReviewAt: new Date(Date.now() + 86400000),
    });
    return log;
  }
}