from pydantic_settings import BaseSettings
from typing import Optional, List
import os
from dotenv import load_dotenv

load_dotenv()

class Settings(BaseSettings):
    API_V1_STR: str = "/api/v1"
    PROJECT_NAME: str = "美搭Meida API"
    PROJECT_DESCRIPTION: str = "美搭Meida服务后端API"
    PROJECT_VERSION: str = "0.1.0"
    
    # CORS设置
    BACKEND_CORS_ORIGINS: List[str] = ["*"]
    
    # 数据库设置
    DB_HOST: str = os.getenv("DB_HOST", "localhost")
    DB_PORT: str = os.getenv("DB_PORT", "3306")
    DB_USER: str = os.getenv("DB_USER", "root")
    DB_PASSWORD: str = os.getenv("DB_PASSWORD", "password")
    DB_NAME: str = os.getenv("DB_NAME", "meida")
    DB_ECHO: bool = os.getenv("DB_ECHO", "False").lower() == "true"

    # DashScope API密钥
    DASHSCOPE_API_KEY: str = os.getenv("DASHSCOPE_API_KEY", "")
    DASHSCOPE_MODEL: str = os.getenv("DASHSCOPE_MODEL", "qwen-max")
    
    # 安全设置
    SECRET_KEY: str = os.getenv("SECRET_KEY", "your-secret-key-for-jwt-please-change-in-production")
    ALGORITHM: str = "HS256"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 7  # 7天
    
    # 微信设置
    WECHAT_APP_ID: str = os.getenv("WECHAT_APP_ID", "")
    WECHAT_APP_SECRET: str = os.getenv("WECHAT_APP_SECRET", "")

    # 腾讯云COS配置
    COS_SECRET_ID: str = os.getenv("COS_SECRET_ID", "")
    COS_SECRET_KEY: str = os.getenv("COS_SECRET_KEY", "")
    COS_REGION: str = os.getenv("COS_REGION", "ap-guangzhou")
    COS_BUCKET: str = os.getenv("COS_BUCKET", "")
    
    @property
    def cors_origins(self):
        """获取CORS来源列表"""
        if isinstance(self.BACKEND_CORS_ORIGINS, str) and self.BACKEND_CORS_ORIGINS == "*":
            return ["*"]
        elif isinstance(self.BACKEND_CORS_ORIGINS, list):
            return self.BACKEND_CORS_ORIGINS
        return []

    class Config:
        env_file = ".env"
        case_sensitive = True

settings = Settings()