from pathlib import Path

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    PROJECT_NAME: str = "File Upload Download API"
    API_V1_STR: str = "/api/v1"

    # Base directory for storage
    STORAGE_DIR: Path = Path("/app/storage")

    # File storage directory
    FILE_STORAGE_DIR: Path = STORAGE_DIR / "files"

    # Database
    DB_DIR: Path = STORAGE_DIR / "db"
    SQLALCHEMY_DATABASE_URL: str = f"sqlite:///{DB_DIR}/db.sqlite"

    # Configure max file size (10MB by default)
    MAX_FILE_SIZE: int = 10 * 1024 * 1024  # 10MB in bytes

    model_config = SettingsConfigDict(case_sensitive=True, env_file=".env")


# Create settings instance
settings = Settings()

# Ensure storage directories exist
settings.DB_DIR.mkdir(parents=True, exist_ok=True)
settings.FILE_STORAGE_DIR.mkdir(parents=True, exist_ok=True)