import os
import re
import socket

def get_local_ip():
    """获取本机内网IP地址"""
    try:
        # 创建一个 UDP 套接字
        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        # 连接到一个外部地址（不会实际发送数据）
        s.connect(("8.8.8.8", 80))
        # 获取本地套接字的地址
        local_ip = s.getsockname()[0]
        s.close()
        return local_ip
    except Exception as e:
        print(f"获取本机IP失败: {e}")
        return None

def replace_ip_in_file(file_path, old_ip_pattern, new_ip):
    """替换文件中的IP地址"""
    try:
        # 读取文件内容
        with open(file_path, 'r', encoding='utf-8') as file:
            content = file.read()
        
        # 使用正则表达式替换IP地址
        # 匹配格式：内网IP[10.108.78.191]
        pattern = re.compile(r'内网IP\[' + re.escape(old_ip_pattern) + r'\]')
        new_content = pattern.sub(f'内网IP[{new_ip}]', content)
        
        # 如果内容有变化，则写回文件
        if content != new_content:
            with open(file_path, 'w', encoding='utf-8') as file:
                file.write(new_content)
            print(f"成功替换IP: {old_ip_pattern} -> {new_ip}")
            return True
        else:
            print("未找到匹配的IP地址，文件未修改")
            return False
            
    except FileNotFoundError:
        print(f"文件不存在: {file_path}")
        return False
    except Exception as e:
        print(f"处理文件时出错: {e}")
        return False

def main():
    # 文件路径
    file_path = "/data/SillyTavern/public/scripts/templates/welcomePanel.html"
    
    # 获取本机内网IP
    local_ip = get_local_ip()
    if not local_ip:
        print("无法获取本机IP地址")
        return
    
    print(f"本机内网IP: {local_ip}")
    
    # 读取文件并查找需要替换的IP
    try:
        with open(file_path, 'r', encoding='utf-8') as file:
            content = file.read()
        
        # 查找类似 "内网IP[xxx.xxx.xxx.xxx]" 的模式
        pattern = r'内网IP\[(\d+\.\d+\.\d+\.\d+)\]'
        matches = re.findall(pattern, content)
        
        if matches:
            for old_ip in matches:
                if old_ip != local_ip:
                    replace_ip_in_file(file_path, old_ip, local_ip)
                else:
                    print(f"IP地址已经是本机IP ({local_ip})，无需替换")
        else:
            print("未找到需要替换的IP地址模式")
            
    except Exception as e:
        print(f"处理文件时出错: {e}")

if __name__ == "__main__":
    main()