const { db } = require('./database');

console.log('开始修复 expires_at 格式...\n');

// 查找所有有过期时间的分享
const shares = db.prepare(`
  SELECT id, share_code, expires_at
  FROM shares
  WHERE expires_at IS NOT NULL
`).all();

console.log(`找到 ${shares.length} 条需要修复的记录\n`);

let fixed = 0;
const updateStmt = db.prepare('UPDATE shares SET expires_at = ? WHERE id = ?');

shares.forEach(share => {
  const oldFormat = share.expires_at;
  
  // 如果是ISO格式(包含T和Z),需要转换
  if (oldFormat.includes('T') || oldFormat.includes('Z')) {
    const parsed = new Date(oldFormat);
    if (Number.isNaN(parsed.getTime())) {
      console.warn(`跳过无法解析的时间: ${share.share_code} -> ${oldFormat}`);
      return;
    }

    // 转换为本地时区 SQLite datetime 格式: YYYY-MM-DD HH:MM:SS
    const year = parsed.getFullYear();
    const month = String(parsed.getMonth() + 1).padStart(2, '0');
    const day = String(parsed.getDate()).padStart(2, '0');
    const hours = String(parsed.getHours()).padStart(2, '0');
    const minutes = String(parsed.getMinutes()).padStart(2, '0');
    const seconds = String(parsed.getSeconds()).padStart(2, '0');
    const newFormat = `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
    
    updateStmt.run(newFormat, share.id);
    fixed++;
    
    console.log(`✓ 修复分享 ${share.share_code}:`);
    console.log(`  旧格式: ${oldFormat}`);
    console.log(`  新格式: ${newFormat}\n`);
  }
});

console.log(`\n修复完成! 共修复 ${fixed} 条记录`);