"""Application configuration using pydantic-settings."""
import secrets
from typing import Optional

from pydantic_settings import BaseSettings, SettingsConfigDict


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

    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
    )

    # Admin credentials
    ADMIN_USERNAME: str = "admin"
    ADMIN_PASSWORD: str = "admin123"

    # JWT settings
    SECRET_KEY: str = secrets.token_urlsafe(32)
    JWT_ALGORITHM: str = "HS256"
    JWT_EXPIRE_MINUTES: int = 480

    # Database
    DATABASE_URL: str = "sqlite:///./data/airwallex.db"

    # Airwallex API
    AIRWALLEX_CLIENT_ID: str = ""
    AIRWALLEX_API_KEY: str = ""
    AIRWALLEX_BASE_URL: str = "https://api.airwallex.com/"

    # Proxy (optional)
    PROXY_URL: Optional[str] = None


settings = Settings()