import os
import secrets
from pathlib import Path

from pydantic import field_validator
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    # API configuration
    API_V1_STR: str = "/api/v1"
    SECRET_KEY: str = os.getenv("SECRET_KEY", secrets.token_urlsafe(32))
    ACCESS_TOKEN_EXPIRE_MINUTES: int = int(
        os.getenv("ACCESS_TOKEN_EXPIRE_MINUTES", 60 * 24 * 8)
    )  # 8 days

    # Project configuration
    PROJECT_NAME: str = "Small Business Inventory Management System"
    PROJECT_DESCRIPTION: str = "API for managing inventory for small businesses"
    PROJECT_VERSION: str = "0.1.0"

    # Database configuration
    DB_DIR: Path = Path("/app") / "storage" / "db"

    @field_validator("DB_DIR")
    @classmethod
    def create_db_dir(cls, v):
        v.mkdir(parents=True, exist_ok=True)
        return v

    # Debug mode
    DEBUG: bool = os.getenv("DEBUG", "False").lower() == "true"

    # CORS configuration
    BACKEND_CORS_ORIGINS: list[str] = ["*"]

    model_config = SettingsConfigDict(case_sensitive=True)


settings = Settings()