"""Application configuration for Pak Angels AI Tutor."""

from __future__ import annotations

import os


APP_NAME = "Pak Angels AI Tutor"
APP_SUBTITLE = "Learn • Build • Innovate • Launch with Artificial Intelligence"
DEFAULT_MODEL = "gpt-4.1-mini"


def get_openai_api_key() -> str:
    """Read the OpenAI API key from the environment."""
    return os.getenv("OPENAI_API_KEY", "").strip()


def get_openai_model() -> str:
    """Read the optional model name, falling back to a practical default."""
    return os.getenv("OPENAI_MODEL", DEFAULT_MODEL).strip() or DEFAULT_MODEL