require('dotenv').config();
const fs = require('fs').promises;
const path = require('path');
const connectDB = require('../config/database');
const About = require('../models/about');

async function validateAboutData(data) {
  if (!data || typeof data !== 'object') {
    throw new Error('About data must be a valid object');
  }

  // Tuỳ schema bạn chỉnh lại cho chuẩn hơn
  if (!data.hero || !data.leadership) {
    throw new Error('Missing required fields: hero or leadership');
  }
}

async function migrateAboutData() {
  try {
    await connectDB();
    console.log('Đã kết nối MongoDB...');

    await About.deleteMany({});
    console.log('Đã xóa dữ liệu About cũ');

    const aboutData = JSON.parse(
      await fs.readFile(
        path.join(__dirname, '../data/about.json'),
        'utf8'
      )
    );

    // Validate
    await validateAboutData(aboutData);
    // Transform (optional)
    const finalData = {
      ...aboutData,
      updatedAt: new Date()
    };
    // Insert
    await About.create(finalData);

    console.log('✓ Migrate About thành công!');
    process.exit(0);

  } catch (error) {
    console.error('❌ Lỗi:', error.message);
    process.exit(1);
  }
}

migrateAboutData();