from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    """Application settings via pydantic-settings. Reads from env vars and .env."""

    # Django
    DJANGO_SECRET_KEY: str = "django-insecure-change-me-in-production"
    DJANGO_DEBUG: bool = False
    DJANGO_ALLOWED_HOSTS: list[str] = ["*"]

    # PostgreSQL
    DB_NAME: str = "cloud_reader"
    DB_USER: str = "postgres"
    DB_PASSWORD: str = "postgres"
    DB_HOST: str = "localhost"
    DB_PORT: int = 5432

    # JWT
    JWT_ACCESS_TOKEN_LIFETIME_MINUTES: int = 60
    JWT_REFRESH_TOKEN_LIFETIME_DAYS: int = 7

    # CORS
    CORS_ALLOWED_ORIGINS: list[str] = [
        "http://localhost:5173",
        "http://localhost:3000",
    ]

    # Open Library metadata enrichment
    OPENLIBRARY_ENABLED: bool = True
    OPENLIBRARY_PREFERRED_LANG: str = "es"
    OPENLIBRARY_FALLBACK_LANG: str = "en"
    OPENLIBRARY_TIMEOUT_SECONDS: float = 10.0
    OPENLIBRARY_CONNECT_TIMEOUT_SECONDS: float = 15.0
    OPENLIBRARY_USER_AGENT: str = "CloudReader/1.0 (https://github.com/cloud-reader)"

    @property
    def DATABASE_URL(self) -> str:
        return (
            f"postgresql://{self.DB_USER}:{self.DB_PASSWORD}"
            f"@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
        )

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


settings = Settings()