from functools import lru_cache

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(
        env_prefix="LIFETRACK_", env_file=".env", extra="ignore"
    )

    # Database (psycopg v3 driver)
    database_url: str = (
        "postgresql+psycopg://lifetrack:lifetrack@localhost:5432/lifetrack"
    )

    # Auth
    jwt_secret: str = "change-me-in-env"  # MUST be overridden in production
    jwt_algorithm: str = "HS256"
    access_token_expire_minutes: int = 60 * 24 * 7  # 7 days (home deployment)

    # Time
    timezone: str = "Europe/Paris"  # default tz for daily aggregations

    # Imports
    max_upload_bytes: int = 20 * 1024 * 1024  # 20 MiB

    # Dev only: Vite dev server origin(s), comma-separated env value
    cors_origins: list[str] = []


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