from django.shortcuts import redirect
from django.urls import reverse
from django.conf import settings

class LoginRequiredMiddleware:
    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        if not request.user.is_authenticated:
            path = request.path_info
            
            # Allow access to login, logout, admin, and any other exempted paths
            # We use try/except in case URLs are not defined yet
            try:
                login_url = reverse('login')
                logout_url = reverse('logout')
            except:
                login_url = '/accounts/login/'
                logout_url = '/accounts/logout/'

            exempt_urls = [
                login_url,
                logout_url,
                '/admin/',
            ]
            
            # Check if path starts with any of the exempt URLs
            is_exempt = any(path.startswith(url) for url in exempt_urls)
            
            if not is_exempt:
                return redirect(f"{login_url}?next={path}")

        response = self.get_response(request)
        return response