"""
配置管理
"""
from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    """应用配置"""
    # 数据库配置
    db_host: str = "localhost"
    db_port: int = 3306
    db_user: str = "root"
    db_password: str = ""
    db_name: str = "stardom_story"
    
    # 服务配置
    server_host: str = "0.0.0.0"
    server_port: int = 3000
    debug: bool = True
    
    # AI 服务配置
    ai_service_enabled: bool = True
    ai_provider: str = "deepseek"
    
    # DeepSeek 配置
    deepseek_api_key: str = ""
    deepseek_base_url: str = "https://api.deepseek.com/v1"
    deepseek_model: str = "deepseek-chat"
    
    # OpenAI 配置（备用）
    openai_api_key: str = ""
    openai_base_url: str = "https://api.openai.com/v1"
    
    # 微信小游戏配置（预留）
    wx_appid: str = ""
    wx_secret: str = ""
    
    @property
    def database_url(self) -> str:
        return f"mysql+aiomysql://{self.db_user}:{self.db_password}@{self.db_host}:{self.db_port}/{self.db_name}"
    
    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"


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