from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    # MongoDB
    mongodb_url: str = "mongodb://localhost:27017"
    mongodb_db_name: str = "pregnancy_report"

    # JWT
    jwt_secret_key: str = "change-this-secret-key"
    jwt_algorithm: str = "HS256"
    jwt_expire_minutes: int = 10080  # 7 days

    # WeChat
    wechat_app_id: str = ""
    wechat_app_secret: str = ""

    # AI API (OpenAI 兼容接口，如硅基流动)
    ai_api_key: str = ""
    ai_base_url: str = "https://api.siliconflow.cn/v1"
    ai_vision_model: str = "Qwen/Qwen2.5-VL-72B-Instruct"
    ai_text_model: str = "Qwen/Qwen2.5-72B-Instruct"  # 使用更快的72B模型

    # Upload
    upload_dir: str = "./uploads"
    max_file_size: int = 10 * 1024 * 1024  # 10MB

    # CORS
    cors_origins: str = "*"  # 多个域名用逗号分隔，如 https://a.com,https://b.com

    # Server
    host: str = "0.0.0.0"
    port: int = 8000
    debug: bool = True

    model_config = {"env_file": ".env", "env_file_encoding": "utf-8"}


settings = Settings()