from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    # Service
    host: str = "0.0.0.0"
    port: int = 8000
    debug: bool = False

    # Database
    database_url: str = "sqlite+aiosqlite:///./classhub.db"

    # JWT
    jwt_secret: str = "change-me-in-production"
    jwt_expiry_hours: int = 72
    jwt_algorithm: str = "HS256"

    # Tencent COS
    cos_secret_id: str = ""
    cos_secret_key: str = ""
    cos_region: str = "ap-hongkong"
    cos_bucket: str = ""
    cos_base_url: str = ""

    # Book metadata
    google_books_api_key: str = ""

    # WeChat Mini Program
    wechat_mini_app_id: str = "wxfac912df4f9cdebe"
    wechat_mini_app_secret: str = "360f537c8ebed117b2ca32d533ff2912"
    wechat_api_timeout_seconds: float = 8.0

    # SMTP Email
    smtp_host: str = ""
    smtp_port: int = 465
    smtp_user: str = ""
    smtp_password: str = ""
    smtp_from_email: str = ""
    smtp_from_name: str = "HKU ICB"

    # Frontend URL
    frontend_url: str = "http://localhost:3000"

    # Super Admin seed
    super_admin_email: str = "admin@classhub.com"
    super_admin_password: str = "admin123"

    model_config = {"env_file": ".env", "env_prefix": "CH_"}


settings = Settings()