#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
配置文件恢复工具
用于从备份恢复 default.json 配置文件
"""
import shutil
from pathlib import Path

def restore_config_backup():
    """从备份恢复配置文件"""
    app_dir = Path(__file__).parent
    config_file = app_dir / "default.json"
    backup_file = app_dir / "default.json.bak"
    
    if not backup_file.exists():
        print(f"❌ 备份文件不存在: {backup_file}")
        return False
    
    if config_file.exists():
        # 先备份当前文件
        current_backup = app_dir / "default.json.before_restore"
        shutil.copy2(config_file, current_backup)
        print(f"✅ 当前配置已备份到: {current_backup}")
    
    # 从备份恢复
    shutil.copy2(backup_file, config_file)
    print(f"✅ 配置已从备份恢复: {backup_file} -> {config_file}")
    
    # 显示恢复的配置内容
    print("\n恢复的配置内容预览:")
    print("=" * 60)
    with open(config_file, 'r', encoding='utf-8') as f:
        content = f.read()
        lines = content.split('\n')
        for i, line in enumerate(lines[:20], 1):  # 只显示前20行
            print(f"{i:3d}: {line}")
        if len(lines) > 20:
            print(f"... (还有 {len(lines) - 20} 行)")
    print("=" * 60)
    
    return True

if __name__ == "__main__":
    print("=" * 60)
    print("配置文件恢复工具")
    print("=" * 60)
    
    if restore_config_backup():
        print("\n✅ 配置恢复成功！")
        print("请重启程序以加载恢复的配置。")
    else:
        print("\n❌ 配置恢复失败！")