const mysql = require('mysql2/promise');
const config = require('../config/database');
const { DOMAIN_CONFIG } = require('../config/domain');
const { toRelativeUrl } = require('../utils/image-url');

async function convertToRelativeUrls() {
  try {
    const connection = await mysql.createConnection(config);
    console.log('✅ 数据库连接成功\n');

    console.log('🔍 检查数据库中的图片URL...');
    const [goods] = await connection.execute('SELECT id, images FROM goods');
    
    console.log(`找到 ${goods.length} 条商品记录\n`);

    let updatedCount = 0;

    // 更新图片URL
    for (const item of goods) {
      if (item.images) {
        let oldImages = item.images;
        let newImages = oldImages;

        try {
          // 尝试解析JSON
          let imagesArray = JSON.parse(oldImages);
          
          // 转换每个URL
          let convertedArray = imagesArray.map(url => toRelativeUrl(url));
          
          newImages = JSON.stringify(convertedArray);
          
          if (oldImages !== newImages) {
            await connection.execute(
              'UPDATE goods SET images = ? WHERE id = ?',
              [newImages, item.id]
            );
            
            console.log(`商品ID ${item.id}:`);
            console.log(`  旧: ${oldImages}`);
            console.log(`  新: ${newImages}`);
            console.log('---');
            updatedCount++;
          }
        } catch (e) {
          // 如果不是有效JSON，直接尝试转换
          let converted = toRelativeUrl(oldImages);
          if (converted !== oldImages) {
            newImages = converted;
            await connection.execute(
              'UPDATE goods SET images = ? WHERE id = ?',
              [newImages, item.id]
            );
            console.log(`商品ID ${item.id} (非JSON格式):`);
            console.log(`  旧: ${oldImages}`);
            console.log(`  新: ${newImages}`);
            console.log('---');
            updatedCount++;
          }
        }
      }
    }

    // 检查积分商品
    const [pointsGoods] = await connection.execute('SELECT id, images FROM points_goods');
    if (pointsGoods.length > 0) {
      console.log(`\n检查 ${pointsGoods.length} 条积分商品记录...`);
      for (const item of pointsGoods) {
        if (item.images) {
          let oldImages = item.images;
          let newImages = oldImages;

          try {
            let imagesArray = JSON.parse(oldImages);
            let convertedArray = imagesArray.map(url => toRelativeUrl(url));
            newImages = JSON.stringify(convertedArray);
          } catch (e) {
            newImages = toRelativeUrl(oldImages);
          }

          if (oldImages !== newImages) {
            await connection.execute(
              'UPDATE points_goods SET images = ? WHERE id = ?',
              [newImages, item.id]
            );
            console.log(`积分商品ID ${item.id}: 已更新`);
            updatedCount++;
          }
        }
      }
    }

    await connection.end();
    console.log(`\n✅ 完成！共更新了 ${updatedCount} 条记录`);
  } catch (error) {
    console.error('❌ 更新失败:', error);
    process.exit(1);
  }
}

convertToRelativeUrls();