import json
from typing import List
from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    APP_NAME: str = "A股智投后端服务"
    APP_ENV: str = "development"
    APP_DEBUG: bool = True
    APP_HOST: str = "0.0.0.0"
    APP_PORT: int = 8000
    
    CORS_ORIGINS: str = '["http://localhost:5173","http://localhost:3000"]'
    
    REDIS_URL: str = "redis://localhost:6379/0"
    CACHE_TTL: int = 60
    
    LOG_LEVEL: str = "INFO"
    
    EASTMONEY_API: str = "https://push2.eastmoney.com"
    THS_API: str = "https://q.10jqka.com.cn"
    XUEQIU_API: str = "https://stock.xueqiu.com"
    TENCENT_API: str = "https://web.sqt.gtimg.cn"
    
    WS_HEARTBEAT_INTERVAL: int = 30
    WS_RECONNECT_DELAY: int = 5
    
    @property
    def cors_origins_list(self) -> List[str]:
        return json.loads(self.CORS_ORIGINS)
    
    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"


@lru_cache()
def get_settings() -> Settings:
    return Settings()


settings = get_settings()