const { PrismaClient } = require('@prisma/client');
const prisma = new PrismaClient();

async function checkParentId() {
  const bookId = 2;
  
  // 查询前3个章
  const chapters = await prisma.bookChapter.findMany({
    where: { bookId, level: 1 },
    orderBy: { number: 'asc' },
    take: 2
  });
  
  console.log('=== Level 1 (章) ===');
  chapters.forEach(c => {
    console.log(`id=${c.id}, parentId=${c.parentId}, number=${c.number}, title=${c.title.substring(0, 20)}`);
  });
  
  if (chapters.length > 0) {
    const firstChapterId = chapters[0].id;
    
    // 查询这个章的节
    const sections = await prisma.bookChapter.findMany({
      where: { bookId, level: 2, parentId: firstChapterId },
      orderBy: { number: 'asc' },
      take: 3
    });
    
    console.log(`\n=== Level 2 (节, parentId=${firstChapterId}) ===`);
    sections.forEach(s => {
      console.log(`id=${s.id}, parentId=${s.parentId}, number=${s.number}, title=${s.title.substring(0, 20)}`);
    });
    
    if (sections.length > 0) {
      const firstSectionId = sections[0].id;
      
      // 查询这个节的小节
      const subsections = await prisma.bookChapter.findMany({
        where: { bookId, level: 3, parentId: firstSectionId },
        orderBy: { number: 'asc' },
        take: 3
      });
      
      console.log(`\n=== Level 3 (小节, parentId=${firstSectionId}) ===`);
      subsections.forEach(sub => {
        console.log(`id=${sub.id}, parentId=${sub.parentId}, number=${sub.number}, title=${sub.title.substring(0, 20)}`);
      });
    }
  }
  
  await prisma.$disconnect();
}

checkParentId().catch(console.error);