/**
 * 查询最新书籍解析任务（course_generation_tasks）
 * 用于诊断超时、失败：npx ts-node scripts/check-latest-book-task.ts
 * 需在 backend 目录执行，或设置 DATABASE_URL
 */

import 'dotenv/config';
import { PrismaClient } from '@prisma/client';

const prisma = new PrismaClient();

async function main() {
  const rows = await prisma.courseGenerationTask.findMany({
    orderBy: { createdAt: 'desc' },
    take: 5,
    select: {
      id: true,
      courseId: true,
      userId: true,
      status: true,
      progress: true,
      errorMessage: true,
      currentStep: true,
      sourceText: true,
      createdAt: true,
      updatedAt: true,
      course: { select: { title: true, totalNodes: true } },
    },
  });

  console.log('\n========== 最新 5 条书籍解析任务 ==========\n');
  for (let i = 0; i < rows.length; i++) {
    const t = rows[i];
    const len = typeof t.sourceText === 'string' ? t.sourceText.length : 0;
    console.log(`--- 任务 ${i + 1} ---`);
    console.log('  id:         ', t.id);
    console.log('  courseId:   ', t.courseId);
    console.log('  course.title:', (t.course as any)?.title ?? '-');
    console.log('  status:     ', t.status);
    console.log('  progress:   ', t.progress);
    console.log('  currentStep:', t.currentStep ?? '-');
    console.log('  errorMessage:', t.errorMessage ?? '-');
    console.log('  sourceText 长度:', len);
    console.log('  createdAt:  ', t.createdAt);
    console.log('  updatedAt:  ', t.updatedAt);
    console.log('');
  }
  console.log('==========================================\n');
}

main()
  .catch((e) => { console.error(e); process.exit(1); })
  .finally(() => prisma.$disconnect());