import 'dart:io';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:test_sa/views/pages/user/land_page.dart' as old_page;
import 'package:test_sa/views/widgets/equipment/single_device_picker.dart';

import '../../../controllers/providers/api/user_provider.dart';
import '../../../models/enums/user_types.dart';
import '../../common_widgets/app_bottom_nav_bar.dart';
import '../../common_widgets/app_drawer.dart';
import 'calendar_page.dart';
import 'contact_us_bottom_sheet.dart';
import 'dashboard_page.dart';

class LandPage extends StatefulWidget {
  static const String routeName = "/land-page";

  const LandPage({Key key}) : super(key: key);

  @override
  State<LandPage> createState() => _LandPageState();
}

class _LandPageState extends State<LandPage> {
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
  int currentPageIndex = 0;
  bool showAppbar = true;
  List<Widget> _pages;

  @override
  void didChangeDependencies() {
    final user = Provider.of<UserProvider>(context, listen: false).user;
    _pages = <Widget>[
      DashboardPage(onDrawerPress: (() {
        _scaffoldKey.currentState.isDrawerOpen ? _scaffoldKey.currentState.closeDrawer() : _scaffoldKey.currentState.openDrawer();
      })),
      const old_page.LandPage(),
      // const MyRequestsPage(),
      const SingleDevicePicker(),
      if (user.type == UsersTypes.engineer) const CalendarPage(),
    ];
    super.didChangeDependencies();
  }

  @override
  Widget build(BuildContext context) {
    return WillPopScope(
      onWillPop: () async {
        /// TODO [zaid] : show dialog before exit
        // bool result = await showDialog(
        //   context: context,
        //   builder: (_) => const AAlertDialog(
        //     title: "_subtitle.exit",
        //     content: "_subtitle.exitAlert",
        //   ),
        // );
        if (true) {
          if (Platform.isAndroid) {
            SystemChannels.platform.invokeMethod('SystemNavigator.pop');
          } else {
            exit(0);
          }
        }
        return false;
      },
      child: Scaffold(
        key: _scaffoldKey,
        drawer: const AppDrawer(),
        body: _pages[currentPageIndex],
        bottomNavigationBar: AppBottomNavigationBar(
          selectedIndex: currentPageIndex,
          onPressed: (index) {
            if (index == _pages.length) {
              showModalBottomSheet(
                context: context,
                useSafeArea: true,
                backgroundColor: Colors.transparent,
                builder: (context) => const ContactUsBottomSheet(),
              );
            } else {
              setState(() {
                currentPageIndex = index;
              });

              if (index == 1) {
                setState(() {
                  showAppbar = false;
                });
              } else {
                setState(() {
                  showAppbar = true;
                });
              }
            }
          },
        ),
      ),
    );
  }
}