tablet-app/lib/main.dart

import 'dart:io';

import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:manager_api/api.dart';
import 'package:mapbox_maps_flutter/mapbox_maps_flutter.dart';
import 'package:path_provider/path_provider.dart';
import 'package:provider/provider.dart';
import 'package:tablet_app/client.dart';
import 'Helpers/DatabaseHelper.dart';
import 'Models/tabletContext.dart';
import 'Screens/Configuration/config_view.dart';
import 'Screens/MainView/main_view.dart';
import 'Screens/Previous/previous_view.dart';
import 'app_context.dart';
import 'constants.dart';
import 'package:flutter/services.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  String initialRoute;
  TabletAppContext? localContext;
  bool isConfig = false;

  if(!kIsWeb) {
    localContext = await DatabaseHelper.instance.getData();
  }

  MapboxOptions.setAccessToken("pk.eyJ1IjoidGZyYW5zb2xldCIsImEiOiJjbHRpcGNvZDYwYWhkMnFxdmF0ampveW10In0.7xHN0NGvUfQu5ThS3RGJRw"); // TODO put in json file or resource file

  Directory? appDocumentsDirectory = Platform.isIOS ? await getApplicationDocumentsDirectory() : await getDownloadsDirectory();
  String localPath = appDocumentsDirectory!.path;

  if(localContext != null && localContext.host != null) {
    print("we've got an local db !");
    print(localContext);
    localContext.clientAPI = new Client(localContext.host!); // retrieve instanceId from local DB
    isConfig = localContext.configuration != null;
    print(localContext);
    print("localContext.deviceId");
    print(localContext.deviceId!);
    print("localContext.instanceId");
    print(localContext.instanceId);
    // Get config from manager
    DeviceDetailDTO? device = await localContext.clientAPI!.deviceApi!.deviceGetDetail(localContext.deviceId!);
    localContext.configuration!.id = device!.configurationId;//device!.configurationId; //Hardcoded for VisitNamur 65c5f0ee4c030e63ce16bff5 // DEV 65859c77d97d1b93ce301e91
    localContext.instanceId = device.instanceId;// device.instanceId; //Hardcoded for VisitNamur 65c5e576ad331aa079caf0a4 // DEV 63514fd67ed8c735aaa4b8f2
    localContext.localPath = localPath;

    if (device.configurationId == null) { 
      print("device.configurationId == null");
      localContext.configuration = null;
      isConfig = false;
    }
  } else {
    print("NO LOCAL DB !");
    localContext = TabletAppContext(host: "https://api.myinfomate.be");

    localContext.localPath = localPath;
  }

  if(kIsWeb) {
    localContext = TabletAppContext(host: "https://api.mymuseum.be", instanceId: "63514fd67ed8c735aaa4b8f1"); // mymuseum : 63514fd67ed8c735aaa4b8f1
    print(localContext);
  } else {
    /*print("MOBILE - set host");
    localContext = TabletAppContext(host: "https://api.mymuseum.be"); // mymuseum : 63514fd67ed8c735aaa4b8f1 //https://localhost:5001/ // https://api.mymuseum.be*/
  }

  initialRoute = isConfig ? '/main' : '/config';

  final MyApp myApp = MyApp(
    initialRoute: initialRoute,
    tabletAppContext: localContext,
  );

  await Firebase.initializeApp();

  runApp(myApp);
}

class MyApp extends StatefulWidget {
  final String? initialRoute;
  final TabletAppContext? tabletAppContext;
  MyApp({this.initialRoute, this.tabletAppContext});

  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  TabletAppContext? tabletAppContext;

  @override
  void initState() {
    //tabletAppContext = widget.tabletAppContext;
    super.initState();
  }

  @override
  Widget build(BuildContext context) {

    // Block screen orientation in landscape mode only // TO TEST
    SystemChrome.setPreferredOrientations([
      DeviceOrientation.landscapeLeft,
      DeviceOrientation.landscapeRight,
    ]);

    return ChangeNotifierProvider<AppContext>(
      create: (_) => AppContext(widget.tabletAppContext),
      child: MaterialApp(
        debugShowCheckedModeBanner: false,
        title: 'Tablet App Demo',
        initialRoute: widget.initialRoute,
        /*supportedLocales: [
          const Locale('en', 'US'),
          const Locale('fr', 'FR'),
        ],*/
        theme: ThemeData(
          primaryColor: widget.tabletAppContext != null ? widget.tabletAppContext!.configuration != null ? widget.tabletAppContext!.configuration!.primaryColor != null ? new Color(int.parse(widget.tabletAppContext!.configuration!.primaryColor!.split('(0x')[1].split(')')[0], radix: 16)): kTestSecondColor : kTestSecondColor : kTestSecondColor,
          primarySwatch: Colors.grey,
          scaffoldBackgroundColor: widget.tabletAppContext != null ? widget.tabletAppContext!.configuration != null ? widget.tabletAppContext!.configuration!.secondaryColor != null ? new Color(int.parse(widget.tabletAppContext!.configuration!.secondaryColor!.split('(0x')[1].split(')')[0], radix: 16)): kBackgroundGrey : kBackgroundGrey : kBackgroundGrey,
          fontFamily: "Roboto",
          textSelectionTheme: TextSelectionThemeData(
            selectionHandleColor: widget.tabletAppContext != null ? widget.tabletAppContext!.configuration != null ? widget.tabletAppContext!.configuration!.primaryColor != null ? new Color(int.parse(widget.tabletAppContext!.configuration!.primaryColor!.split('(0x')[1].split(')')[0], radix: 16)): kTestSecondColor : kTestSecondColor : kTestSecondColor,
            cursorColor: Colors.white,
            selectionColor: widget.tabletAppContext != null ? widget.tabletAppContext!.configuration != null ? widget.tabletAppContext!.configuration!.primaryColor != null ? new Color(int.parse(widget.tabletAppContext!.configuration!.primaryColor!.split('(0x')[1].split(')')[0], radix: 16)): kTestSecondColor : kTestSecondColor : kTestSecondColor,
          ),
          textTheme: TextTheme(bodyLarge: TextStyle(color: widget.tabletAppContext != null ? widget.tabletAppContext!.configuration != null ? widget.tabletAppContext!.configuration!.primaryColor != null ? new Color(int.parse(widget.tabletAppContext!.configuration!.primaryColor!.split('(0x')[1].split(')')[0], radix: 16)): kTestSecondColor : kTestSecondColor : kTestSecondColor)),
          visualDensity: VisualDensity.adaptivePlatformDensity,
        ),
        routes: {
          '/previous': (context) => PreviousViewWidget(title: 'Tablet App Demo Home Page'),
          '/main': (context) => MainViewWidget(),
          '/config': (context) => ConfigViewWidget(),
        }
      ),
    );
  }
}