"""Application configuration using Pydantic Settings."""

from pydantic_settings import BaseSettings
from typing import Optional


class Settings(BaseSettings):
    """Application settings loaded from environment variables."""

    # App Info
    APP_NAME: str = "Service App"
    APP_VERSION: str = "1.0.0"
    API_V1_PREFIX: str = "/api/v1"

    # Database
    DATABASE_URL: str = "sqlite:////config/config.db"

    # Security
    SECRET_KEY: str
    ALGORITHM: str = "HS256"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 1440  # 24 hours

    # CORS
    ALLOWED_HOSTS: list[str] = []
    CORS_ORIGINS: list[str] = [
        "http://localhost:3000",
        "http://localhost:5173",  # Vite dev server
        "http://127.0.0.1:3000",
        "http://127.0.0.1:5173",
    ]

    @property
    def all_cors_origins(self) -> list[str]:
        """Combine default CORS origins with allowed hosts."""
        return self.CORS_ORIGINS + self.ALLOWED_HOSTS

    # Logging
    LOG_LEVEL: str = "info"
    DEBUG: bool = False

    class Config:
        env_file = ".env"
        case_sensitive = True
        extra = "ignore"  # Ignore extra fields from .env (like VITE_* for frontend)


# Global settings instance
settings = Settings()