import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import '../../screens/auth/login_screen.dart';
import '../../screens/shell/app_shell.dart';
import '../../screens/stock_in/stock_in_list_screen.dart';
import '../../screens/stock_in/stock_in_form_screen.dart';
import '../../screens/stock_out/stock_out_list_screen.dart';
import '../../screens/inventory/inventory_list_screen.dart';
import '../../screens/inventory/inventory_check_screen.dart';
import '../../screens/partners/partners_screen.dart';
import '../../screens/finance/finance_screen.dart';
import '../../screens/products/products_screen.dart';
import '../../screens/settings/settings_screen.dart';
import '../auth/auth_state.dart';

final appRouterProvider = Provider<GoRouter>((ref) {
  final authState = ref.watch(authStateProvider);

  return GoRouter(
    initialLocation: '/login',
    redirect: (context, state) {
      final isLoggedIn = authState.isLoggedIn;
      final isLoginRoute = state.matchedLocation == '/login';
      if (!isLoggedIn && !isLoginRoute) return '/login';
      if (isLoggedIn && isLoginRoute) return '/stock-in';
      return null;
    },
    routes: [
      GoRoute(
        path: '/login',
        builder: (context, state) => const LoginScreen(),
      ),
      ShellRoute(
        builder: (context, state, child) => AppShell(child: child),
        routes: [
          GoRoute(
              path: '/stock-in',
              builder: (_, __) => const StockInListScreen()),
          GoRoute(
              path: '/stock-in/new',
              builder: (_, __) => const StockInFormScreen()),
          GoRoute(
              path: '/stock-out',
              builder: (_, __) => const StockOutListScreen()),
          GoRoute(
              path: '/inventory',
              builder: (_, __) => const InventoryListScreen()),
          GoRoute(
              path: '/inventory/check',
              builder: (_, __) => const InventoryCheckScreen()),
          GoRoute(
              path: '/partners', builder: (_, __) => const PartnersScreen()),
          GoRoute(
              path: '/finance', builder: (_, __) => const FinanceScreen()),
          GoRoute(
              path: '/products', builder: (_, __) => const ProductsScreen()),
          GoRoute(
              path: '/settings', builder: (_, __) => const SettingsScreen()),
        ],
      ),
    ],
  );
});