"""Application configuration loaded from environment variables.

All settings are read from environment variables prefixed with
``ARTIFACTSTORE_``. A ``.env`` file at the repository root is honoured for
local development; see ``.env.example``.
"""

from __future__ import annotations

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    """Top-level service configuration."""

    model_config = SettingsConfigDict(
        env_prefix="ARTIFACTSTORE_",
        env_file=".env",
        env_file_encoding="utf-8",
        extra="ignore",
    )

    database_url: str = "sqlite+aiosqlite:///./var/artifactstore.db"
    storage_local_root: str = "./var/storage"
    log_level: str = "INFO"


def get_settings() -> Settings:
    """Return a freshly-loaded :class:`Settings` instance."""
    return Settings()