import 'dart:async';
import 'dart:developer';
import 'package:car_provider_app/views/branch_management/branch/branch_list_page.dart';
import 'package:flutter/material.dart';
import 'package:mc_common_app/classes/app_state.dart';
import 'package:mc_common_app/utils/enums.dart';
import 'package:mc_common_app/view_models/dashboard_view_model_provider.dart';
import 'package:mc_common_app/views/common_fragments/requests_fragment.dart';
import 'package:mc_common_app/widgets/common_widgets/bottom_nav_bar.dart';
import 'package:provider/provider.dart';
import 'fragments/branch_appointment_fragment.dart';
import 'fragments/home_fragment.dart';
import 'package:mc_common_app/views/common_fragments/ads_fragment.dart';

class DashboardView extends StatefulWidget {
  final DashboardRouteEnum dashboardRouteEnum;

  const DashboardView({Key? key, required this.dashboardRouteEnum}) : super(key: key);

  @override
  State<DashboardView> createState() => _DashboardViewState();
}

class _DashboardViewState extends State<DashboardView> {
  late DashboardVMProvider dashboardVMProvider;
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();

  @override
  void initState() {
    log("widget.dashboardRouteEnum: ${widget.dashboardRouteEnum}");
    super.initState();
    dashboardVMProvider = Provider.of<DashboardVMProvider>(context, listen: false);

    // Ensure selected index is valid for individual providers (no Requests tab)
    if (AppState().userType != UserType.providerDealer && AppState().userType != UserType.dealershipUser) {
      // For individuals, max index is 3 (Ads), so if selected is 4, set to Home (2)
      if (dashboardVMProvider.selectedNavbarBarIndex >= 4) {
        dashboardVMProvider.selectedNavbarBarIndex = 2; // Home
      }
    }

    scheduleMicrotask(() => dashboardVMProvider.onRefresh(context, dashboardRouteEnum: widget.dashboardRouteEnum));
  }

  @override
  Widget build(BuildContext context) {
    // Build fragments list conditionally based on user type
    // Individual providers should not have access to Requests
    List<Widget> fragments = [
      const BranchListPage(), // 0
      const BranchAppointmentFragment(), // 1
      const HomeFragment(), // 2
      const AdsFragment(), // 3
      // Only Dealerships (and dealership staff users) can access Special Requests
      if (AppState().userType == UserType.providerDealer || AppState().userType == UserType.dealershipUser) const MyRequestsFragment(), // 4 (only for dealerships)
    ];

    // Ensure the selected index is valid for the current fragments list
    int validIndex = context.watch<DashboardVMProvider>().selectedNavbarBarIndex;
    if (validIndex >= fragments.length) {
      validIndex = fragments.length - 1; // Default to last valid fragment
    }

    return PopScope(
      canPop: false,
      child: Scaffold(
        key: _scaffoldKey,
        body: fragments[validIndex],
        bottomNavigationBar: CustomBottomNavbar(
          onSelected: (index) {
            dashboardVMProvider.onNavbarTapped(index);
          },
          isProvider: true,
          selectedNavbarBarIndex: dashboardVMProvider.selectedNavbarBarIndex,
        ),
      ),
    );
  }
}