"""
客户端配置文件
"""
import json
import os

class Config:
    def __init__(self, config_file='config.json'):
        self.config_file = config_file
        self.default_config = {
            'server_host': '127.0.0.1',
            'server_port': 8888,
            'buffer_size': 4096,
            'timeout': 30,
            'auto_login': False,
            'username': '',
            'password': '',
            'save_password': False
        }
        self.config = self.load_config()
    
    def load_config(self):
        """加载配置文件"""
        if os.path.exists(self.config_file):
            try:
                with open(self.config_file, 'r', encoding='utf-8') as f:
                    return {**self.default_config, **json.load(f)}
            except:
                return self.default_config
        return self.default_config
    
    def get(self, key, default=None):
        """获取配置项"""
        return self.config.get(key, default)
    
    def set(self, key, value):
        """设置配置项"""
        self.config[key] = value
    
    def save(self):
        """保存配置"""
        with open(self.config_file, 'w', encoding='utf-8') as f:
            json.dump(self.config, f, indent=4, ensure_ascii=False)

config = Config()