/**
 * Diagnose research document migration issue
 */
const { MongoClient } = require('mongodb');
require('dotenv').config({ path: '/var/www/tractatus/.env' });

async function run() {
  console.log('═══════════════════════════════════════════════════════════');
  console.log('  DIAGNOSING RESEARCH DOCUMENT MIGRATION');
  console.log('═══════════════════════════════════════════════════════════\n');

  // 1. Check dev database
  console.log('1️⃣  Checking DEV database...\n');
  const devClient = new MongoClient('mongodb://localhost:27017');
  await devClient.connect();
  const devDoc = await devClient.db('tractatus_dev').collection('documents').findOne({
    slug: 'tractatus-framework-research'
  });

  if (devDoc) {
    console.log(`   ✅ Found in dev: ${devDoc.title}`);
    console.log(`   Category: ${devDoc.category}`);
    console.log(`   Order: ${devDoc.order}`);
    console.log(`   Sections: ${devDoc.sections?.length || 0}`);
    console.log(`   Visibility: ${devDoc.visibility}`);
  } else {
    console.log('   ❌ NOT found in dev');
  }
  await devClient.close();

  // 2. Check production database
  console.log('\n2️⃣  Checking PRODUCTION database...\n');

  const MONGODB_URI = process.env.MONGODB_URI;
  const DB_NAME = process.env.MONGODB_DB || 'tractatus_prod';

  console.log(`   URI: ${MONGODB_URI?.replace(/:[^:]*@/, ':***@')}`);
  console.log(`   Database: ${DB_NAME}\n`);

  const prodClient = new MongoClient(MONGODB_URI);
  await prodClient.connect();

  const prodDoc = await prodClient.db(DB_NAME).collection('documents').findOne({
    slug: 'tractatus-framework-research'
  });

  if (prodDoc) {
    console.log(`   ✅ Found in production: ${prodDoc.title}`);
    console.log(`   Category: ${prodDoc.category}`);
    console.log(`   Order: ${prodDoc.order}`);
    console.log(`   Sections: ${prodDoc.sections?.length || 0}`);
    console.log(`   Visibility: ${prodDoc.visibility}`);
  } else {
    console.log('   ❌ NOT found in production');
  }

  // 3. Check all research-theory documents in production
  console.log('\n3️⃣  All research-theory documents in production:\n');

  const researchDocs = await prodClient.db(DB_NAME).collection('documents')
    .find({ category: 'research-theory' })
    .project({ slug: 1, title: 1, order: 1 })
    .sort({ order: 1 })
    .toArray();

  researchDocs.forEach(doc => {
    console.log(`   [${doc.order}] ${doc.slug}`);
    console.log(`       ${doc.title}`);
  });

  console.log(`\n   Total: ${researchDocs.length} documents in research-theory`);

  await prodClient.close();

  console.log('\n═══════════════════════════════════════════════════════════');
  console.log('  DIAGNOSIS COMPLETE');
  console.log('═══════════════════════════════════════════════════════════\n');
}

run().catch(console.error);