"""
代理池系统配置管理
统一管理所有配置项，支持环境变量覆盖
"""
import os
from typing import Optional

class Config:
    # 数据库配置
    DB_PATH: str = os.getenv("DB_PATH", "db/proxies.db")
    
    # API服务配置
    HOST: str = os.getenv("HOST", "0.0.0.0")
    PORT: int = int(os.getenv("PORT", "3000"))
    
    # 验证器配置
    VALIDATOR_TIMEOUT: int = int(os.getenv("VALIDATOR_TIMEOUT", "5"))
    VALIDATOR_MAX_CONCURRENCY: int = int(os.getenv("VALIDATOR_MAX_CONCURRENCY", "200"))
    VALIDATOR_CONNECT_TIMEOUT: int = int(os.getenv("VALIDATOR_CONNECT_TIMEOUT", "3"))
    
    # 爬虫配置
    CRAWLER_NUM_VALIDATORS: int = int(os.getenv("CRAWLER_NUM_VALIDATORS", "50"))
    CRAWLER_MAX_QUEUE_SIZE: int = int(os.getenv("CRAWLER_MAX_QUEUE_SIZE", "500"))
    
    # 定时任务配置
    SCHEDULER_INTERVAL_MINUTES: int = int(os.getenv("SCHEDULER_INTERVAL_MINUTES", "60"))
    SCHEDULER_ENABLED: bool = os.getenv("SCHEDULER_ENABLED", "true").lower() == "true"
    
    # 日志配置
    LOG_LEVEL: str = os.getenv("LOG_LEVEL", "INFO")
    LOG_DIR: str = os.getenv("LOG_DIR", "logs")
    
    # 导出配置
    EXPORT_MAX_RECORDS: int = int(os.getenv("EXPORT_MAX_RECORDS", "10000"))
    
    # 代理评分配置
    SCORE_VALID: int = int(os.getenv("SCORE_VALID", "10"))
    SCORE_INVALID: int = int(os.getenv("SCORE_INVALID", "-5"))
    SCORE_MIN: int = int(os.getenv("SCORE_MIN", "0"))
    SCORE_MAX: int = int(os.getenv("SCORE_MAX", "100"))
    
    # WebSocket配置
    WS_PING_INTERVAL: int = int(os.getenv("WS_PING_INTERVAL", "20"))
    WS_PING_TIMEOUT: int = int(os.getenv("WS_PING_TIMEOUT", "20"))
    
    # 插件配置
    PLUGINS_DIR: str = os.getenv("PLUGINS_DIR", "plugins")
    
    # CORS配置
    CORS_ORIGINS: str = os.getenv("CORS_ORIGINS", "http://localhost:8080,http://localhost:5173")
    
    # API Key配置
    API_KEY: str = os.getenv("API_KEY", "your-api-key-here")
    ADMIN_API_KEY: str = os.getenv("ADMIN_API_KEY", "your-admin-api-key-here")
    REQUIRE_AUTH: bool = os.getenv("REQUIRE_AUTH", "false").lower() == "true"
    
    @classmethod
    def get(cls, key: str, default=None):
        """获取配置项"""
        return getattr(cls, key, default)
    
    @classmethod
    def set(cls, key: str, value):
        """设置配置项（仅限运行时）"""
        setattr(cls, key, value)
    
    @classmethod
    def update(cls, updates: dict):
        """批量更新配置"""
        for key, value in updates.items():
            if hasattr(cls, key):
                setattr(cls, key, value)

# 全局配置实例
config = Config()