const mongoose = require('mongoose');
const AboutUs = require('../models/aboutUs');
const fs = require('fs');
require('dotenv').config();

// Load and clean JSON data
const raw = fs.readFileSync(require('path').join(__dirname, '..', 'data', 'aboutUs.json'), 'utf8');
let data = JSON.parse(raw || '{}');

// Remove _id fields recursively to avoid conflicts
function stripIds(obj) {
  if (Array.isArray(obj)) return obj.map(i => stripIds(i));
  if (obj && typeof obj === 'object') {
    const out = {};
    for (const k in obj) {
      if (k !== '_id') out[k] = stripIds(obj[k]);
    }
    return out;
  }
  return obj;
}

data = stripIds(data);

// Check for --dry-run flag
const dryRun = process.argv.includes('--dry-run') || process.argv.includes('-n');

async function importAboutUs() {
  try {
    const dbUri = process.env.MONGODB_URI || 'mongodb://localhost:27017/ggcamps';
    console.log('📍 Using DB URI:', dbUri);

    if (dryRun) {
      console.log('\n🔍 === DRY RUN MODE ===');
      console.log('Document to be upserted (preview only, no DB changes):\n');
      console.log(JSON.stringify(data, null, 2));
      console.log('\n=== END DRY RUN ===\n');
      console.log('To actually import, run without --dry-run flag');
      process.exit(0);
    }

    console.log('🔄 Connecting to database...');
    await mongoose.connect(dbUri);
    console.log('✓ Connected to database');

    // Safe upsert: update existing doc or create new one
    console.log('📥 Upserting AboutUs document (safe mode)...');
    const result = await AboutUs.findOneAndUpdate({}, data, { 
      upsert: true, 
      new: true, 
      setDefaultsOnInsert: true 
    });

    console.log('✅ Successfully upserted AboutUs data!');
    console.log('📝 Document ID:', result._id.toString());
    console.log('📊 Data structure:');
    console.log('   - Hero:', data.hero ? '✓' : '✗');
    console.log('   - Introduction:', data.introduction ? '✓' : '✗');
    console.log('   - Introduction Services:', data.introduction?.services?.length || 0, 'items');
    console.log('   - Statistics:', data.statistics ? '✓' : '✗');
    console.log('   - Statistics Items:', data.statistics?.items?.length || 0, 'items');
    console.log('   - Accommodation:', data.accommodation ? '✓' : '✗');
    console.log('   - Accommodation Features:', data.accommodation?.features?.length || 0, 'items');
    console.log('   - Activities:', data.activities ? '✓' : '✗');
    console.log('   - Activities Gallery:', data.activities?.gallery?.length || 0, 'items');
    console.log('   - Newsletter:', data.newsletter ? '✓' : '✗');
    console.log('   - Events:', data.events ? '✓' : '✗');
    console.log('   - Events Items:', data.events?.items?.length || 0, 'items');
    
    process.exit(0);
  } catch (error) {
    console.error('❌ Error:', error.message);
    console.error(error);
    process.exit(1);
  }
}

// Run import
importAboutUs();