from functools import wraps
from flask import request, jsonify, Blueprint, Response
from typing import Callable, Any, Tuple, Dict


auth_blueprint = Blueprint("auth", __name__)


def check_auth(username: str, password: str) -> bool:
    """
    This function checks if a username and password are valid.
    Currently, it always returns True.

    Args:
        username: The username to check.
        password: The password to check.

    Returns:
        True if the credentials are valid, False otherwise.
    """
    return True


def requires_basic_auth(f: Callable) -> Callable:
    """
    A decorator to protect routes with basic authentication.

    Args:
        f: The function to decorate.

    Returns:
        The decorated function.
    """

    @wraps(f)
    def decorated(*args: Any, **kwargs: Any) -> Tuple[Response, int, Dict[str, str]] | Response:
        auth = request.authorization
        if not auth or not check_auth(auth.username, auth.password):
            return (
                jsonify({"message": "Could not verify"}),
                401,
                {"WWW-Authenticate": 'Basic realm="Login Required"'},
            )
        return f(auth.username, auth.password, *args, **kwargs)

    return decorated


def check_login(username: str, password: str) -> Response:
    """
    Checks a user's login credentials.

    Args:
        username: The username to check.
        password: The password to check.

    Returns:
        A Flask JSON response indicating success.
    """
    return jsonify({"auth": "Success"})