const { MongoClient } = require('mongodb');

const MONGO_URI = 'mongodb://localhost:27017';
const DB_NAME = 'tractatus_dev';

async function moveGuidesToResources() {
  const client = new MongoClient(MONGO_URI);

  try {
    await client.connect();
    console.log('✓ Connected to MongoDB');

    const db = client.db(DB_NAME);
    const collection = db.collection('documents');

    // Find implementation guides currently in getting-started
    const guides = await collection.find({
      category: 'getting-started',
      $or: [
        { slug: { $regex: /implementation-guide/ } },
        { title: { $regex: /Implementation Guide/i } }
      ]
    }).toArray();

    console.log(`\nFound ${guides.length} implementation guide(s):`);
    guides.forEach(doc => {
      console.log(`  - ${doc.title} (${doc.slug})`);
    });

    if (guides.length === 0) {
      console.log('\n⚠ No guides to move (already in resources?)');
      return;
    }

    // Update all implementation guides to resources category
    const result = await collection.updateMany(
      {
        category: 'getting-started',
        $or: [
          { slug: { $regex: /implementation-guide/ } },
          { title: { $regex: /Implementation Guide/i } }
        ]
      },
      {
        $set: { category: 'resources' }
      }
    );

    console.log(`\n✅ Updated ${result.modifiedCount} document(s)`);
    console.log('   Category changed: getting-started → resources');

    // Verify the change
    const verifyGuides = await collection.find({
      category: 'resources',
      $or: [
        { slug: { $regex: /implementation-guide/ } },
        { title: { $regex: /Implementation Guide/i } }
      ]
    }).toArray();

    console.log(`\n✓ Verification: ${verifyGuides.length} guide(s) now in Resources:`);
    verifyGuides.forEach(doc => {
      console.log(`  - ${doc.title}`);
    });

  } catch (error) {
    console.error('❌ Error:', error.message);
    process.exit(1);
  } finally {
    await client.close();
    console.log('\n✓ Database connection closed');
  }
}

moveGuidesToResources();