diplomatic-quarter/lib/pages/ErService/rapid-response-team/rrt-main-screen.dart

import 'package:diplomaticquarterapp/core/model/ImagesInfo.dart';
import 'package:diplomaticquarterapp/core/viewModels/er/rrt-view-model.dart';
import 'package:diplomaticquarterapp/pages/ErService/rapid-response-team/rrt-logs-page.dart';
import 'package:diplomaticquarterapp/pages/ErService/rapid-response-team/rrt-request-page.dart';
import 'package:diplomaticquarterapp/pages/base/base_view.dart';
import 'package:diplomaticquarterapp/uitl/translations_delegate_base.dart';
import 'package:diplomaticquarterapp/widgets/others/app_scaffold_widget.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

class RRTMainScreen extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => RRTMainScreenState();
}

class RRTMainScreenState extends State<RRTMainScreen> with SingleTickerProviderStateMixin {
  int currentIndex = 0;
  TabController tabController;
  PageController pageController = PageController(initialPage: 0, keepPage: true);

  RRTViewModel viewModel;
  bool loadingData;

  List<ImagesInfo> imagesInfo = List();

  @override
  void initState() {
    super.initState();
    imagesInfo.add(ImagesInfo(imageEn: 'https://hmgwebservices.com/Images/MobileApp/RRT/en/0.png', imageAr: 'https://hmgwebservices.com/Images/MobileApp/RRT/ar/0.png'));
    tabController = TabController(length: 2, vsync: this);
  }

  TranslationBase localize;

  @override
  Widget build(BuildContext context) {
    localize = TranslationBase.of(context);

    return AppScaffold(
        appBarTitle: localize.rapidResponseTeam,
        isShowAppBar: true,
        description: TranslationBase.of(context).rrtDDetails,
        imagesInfo: imagesInfo,
        body: BaseView<RRTViewModel>(
          onModelReady: (vm) async {
            viewModel = vm;
            loadingData = true;
            await vm.loadRequiredData().then((value) {}).whenComplete(() => setState(() => loadingData = false));
          },
          builder: (ctx, vm, widget) => content(),
        ));
  }

  Widget content() {
    if (loadingData == true) {
      return Center(child: CircularProgressIndicator());
      // else if(viewModel.state == ViewState.Error)

    } else if (viewModel.rrtServiceData != null && viewModel.rrtServiceData.servicePrice != null) {
      return Column(
        children: [tabBar(), Expanded(child: contentPager())],
      );
    } else {
      return Container(
        alignment: Alignment.center,
        child: Text(
          localize.somethingWentWrongTryLater,
          style: TextStyle(color: Colors.red),
          maxLines: 5,
        ),
      );
    }
  }

  Widget tabBar() => Container(
        margin: EdgeInsets.all(15),
        clipBehavior: Clip.hardEdge,
        decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(10)),
        child: TabBar(onTap: onPageChanged, indicatorWeight: 3, indicatorColor: Color(0xFFc5272d), isScrollable: false, controller: tabController, indicatorSize: TabBarIndicatorSize.label, tabs: [
          Tab(
            child: Text(
              localize.rapidResponseTeam,
              style: TextStyle(color: Theme.of(context).appBarTheme.color),
            ),
          ),
          Tab(
            child: Text(
              localize.orderLog,
              style: TextStyle(color: Theme.of(context).appBarTheme.color),
            ),
          ),
        ]),
      );

  Widget contentPager() => PageView(
        onPageChanged: onPageChanged,
        controller: pageController,
        children: [
          RRTRequestPage(servicePrice: viewModel.rrtServiceData.servicePrice, pendingOrders: viewModel.rrtServiceData.pendingOrders),
          RRTLogPage(orders: viewModel.rrtServiceData.completedOrders),
        ],
      );

  void onPageChanged(int index) {
    pageController.animateToPage(index, duration: Duration(milliseconds: 200), curve: Curves.easeInOut);
    tabController.animateTo(index);
  }
}