import 'package:sysfarma_mobile/src/app/mobile_shell_scaffold.dart';
import 'package:sysfarma_mobile/src/core/access/module_access.dart';
import 'package:sysfarma_mobile/src/core/storage/tenant_session_store.dart';
import 'package:sysfarma_mobile/src/features/auth/presentation/login_screen.dart';
import 'package:sysfarma_mobile/src/features/auth/presentation/splash_screen.dart';
import 'package:sysfarma_mobile/src/features/catalog/presentation/catalog_screen.dart';
import 'package:sysfarma_mobile/src/features/contacts/presentation/persons_screen.dart';
import 'package:sysfarma_mobile/src/features/dashboard/presentation/dashboard_screen.dart';
import 'package:sysfarma_mobile/src/features/inventory/presentation/inventory_screen.dart';
import 'package:sysfarma_mobile/src/features/purchases/presentation/purchases_screen.dart';
import 'package:sysfarma_mobile/src/features/quick/presentation/quick_summary_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/cash_history_report_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/category_report_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/critical_stock_report_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/expiring_lots_report_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/general_report_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/hour_report_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/inventory_report_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/lots_overview_report_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/reports_screen.dart';
import 'package:sysfarma_mobile/src/features/reports/presentation/seller_report_screen.dart';
import 'package:sysfarma_mobile/src/features/sales/presentation/pending_voided_screen.dart';
import 'package:sysfarma_mobile/src/features/sales/presentation/pending_sync_screen.dart';
import 'package:sysfarma_mobile/src/features/sales/presentation/sales_history_screen.dart';
import 'package:sysfarma_mobile/src/features/sales/presentation/sales_screen.dart';
import 'package:sysfarma_mobile/src/features/settings/presentation/change_password_screen.dart';
import 'package:sysfarma_mobile/src/features/settings/presentation/profile_screen.dart';
import 'package:sysfarma_mobile/src/features/settings/presentation/settings_screen.dart';
import 'package:sysfarma_mobile/src/features/shared/presentation/barcode_scanner_screen.dart';
import 'package:sysfarma_mobile/src/features/stocktake/presentation/stocktake_item_kardex_screen.dart';
import 'package:sysfarma_mobile/src/features/stocktake/presentation/stocktake_list_screen.dart';
import 'package:sysfarma_mobile/src/features/stocktake/presentation/stocktake_report_screen.dart';
import 'package:sysfarma_mobile/src/features/stocktake/presentation/stocktake_session_screen.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';

final appRouterProvider = Provider<GoRouter>((ref) {
  final sessionStore = ref.watch(tenantSessionStoreProvider);

  return GoRouter(
    initialLocation: '/',
    redirect: (context, state) async {
      final location = state.matchedLocation;
      final isPublic = location == '/' || location == '/login';

      final session = await sessionStore.readSession();
      final isLoggedIn = session != null && session.token.isNotEmpty;

      if (!isLoggedIn && !isPublic) return '/login';
      if (isLoggedIn && location == '/login') return '/home';

      // Guard por modulo: misma logica que el sidebar web (ModuleViewComposer)
      // aplicada a admin y vendedor por igual. Rutas fuera de ModuleAccess
      // (home, perfil, pendientes sync, more, scanner, stocktake) quedan sin
      // restriccion.
      if (isLoggedIn && !ModuleAccess.routeAllowed(location, session)) {
        return '/home';
      }

      return null;
    },
    routes: [
      GoRoute(
        path: '/',
        builder: (context, state) => const SplashScreen(),
      ),
      GoRoute(
        path: '/login',
        builder: (context, state) => const LoginScreen(),
      ),
      ShellRoute(
        builder: (context, state, child) => MobileShellScaffold(child: child),
        routes: [
          GoRoute(
            path: '/home',
            builder: (context, state) => const DashboardScreen(),
          ),
          GoRoute(
            path: '/sales',
            builder: (context, state) => const SalesScreen(),
          ),
          GoRoute(
            path: '/sales-history',
            builder: (context, state) => const SalesHistoryScreen(),
          ),
          GoRoute(
            path: '/pending-voided',
            builder: (context, state) => const PendingVoidedScreen(),
          ),
          GoRoute(
            path: '/pending-sync',
            builder: (context, state) => const PendingSyncScreen(),
          ),
          GoRoute(
            path: '/inventory',
            builder: (context, state) => const InventoryScreen(),
          ),
          GoRoute(
            path: '/reports',
            builder: (context, state) => const ReportsScreen(),
          ),
          GoRoute(
            path: '/reports/general',
            builder: (context, state) => const GeneralReportScreen(),
          ),
          GoRoute(
            path: '/reports/critical-stock',
            builder: (context, state) => const CriticalStockReportScreen(),
          ),
          GoRoute(
            path: '/reports/expiring-lots',
            builder: (context, state) => const ExpiringLotsReportScreen(),
          ),
          GoRoute(
            path: '/reports/by-seller',
            builder: (context, state) => const SellerReportScreen(),
          ),
          GoRoute(
            path: '/reports/by-category',
            builder: (context, state) => const CategoryReportScreen(),
          ),
          GoRoute(
            path: '/reports/by-hour',
            builder: (context, state) => const HourReportScreen(),
          ),
          GoRoute(
            path: '/reports/inventory',
            builder: (context, state) => const InventoryReportScreen(),
          ),
          GoRoute(
            path: '/reports/lots-overview',
            builder: (context, state) => const LotsOverviewReportScreen(),
          ),
          GoRoute(
            path: '/reports/cashes',
            builder: (context, state) => const CashHistoryReportScreen(),
          ),
          GoRoute(
            path: '/more',
            builder: (context, state) => const SettingsScreen(),
          ),
          GoRoute(
            path: '/profile',
            builder: (context, state) => const ProfileScreen(),
          ),
          GoRoute(
            path: '/profile/password',
            builder: (context, state) => const ChangePasswordScreen(),
          ),
          GoRoute(
            path: '/catalog',
            builder: (context, state) => const CatalogScreen(
              title: 'Productos',
              subtitle: 'Busqueda por nombre, codigo o barras.',
              kind: 'product',
              allowCreate: true,
              isService: false,
            ),
          ),
          GoRoute(
            path: '/services',
            builder: (context, state) => const CatalogScreen(
              title: 'Servicios',
              subtitle: 'Busqueda por nombre, codigo o barras.',
              kind: 'service',
              allowCreate: true,
              isService: true,
            ),
          ),
          GoRoute(
            path: '/customers',
            builder: (context, state) =>
                const PersonsScreen(type: PersonScreenType.customers),
          ),
          GoRoute(
            path: '/suppliers',
            builder: (context, state) =>
                const PersonsScreen(type: PersonScreenType.suppliers),
          ),
          GoRoute(
            path: '/purchases',
            builder: (context, state) => const PurchasesScreen(),
          ),
          GoRoute(
            path: '/quick',
            builder: (context, state) => const QuickSummaryScreen(),
          ),
        ],
      ),
      GoRoute(
        path: '/scanner',
        builder: (context, state) => const BarcodeScannerScreen(),
      ),
      GoRoute(
        path: '/stocktake',
        builder: (context, state) => const StocktakeListScreen(),
      ),
      GoRoute(
        path: '/stocktake/:id',
        builder: (context, state) => StocktakeSessionScreen(
          countId: int.tryParse(state.pathParameters['id'] ?? '') ?? 0,
        ),
      ),
      GoRoute(
        path: '/stocktake/:id/report',
        builder: (context, state) => StocktakeReportScreen(
          countId: int.tryParse(state.pathParameters['id'] ?? '') ?? 0,
        ),
      ),
      GoRoute(
        path: '/stocktake/:id/items/:itemId/kardex',
        builder: (context, state) => StocktakeItemKardexScreen(
          countId: int.tryParse(state.pathParameters['id'] ?? '') ?? 0,
          itemId: int.tryParse(state.pathParameters['itemId'] ?? '') ?? 0,
        ),
      ),
    ],
  );
});