mobile_nebula/lib/main.dart

import 'dart:async';

import 'package:flutter/cupertino.dart' show CupertinoThemeData, DefaultCupertinoLocalizations;
import 'package:flutter/material.dart' show DefaultMaterialLocalizations, TextTheme, ThemeMode;
import 'package:flutter/scheduler.dart';
import 'package:flutter/services.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_platform_widgets/flutter_platform_widgets.dart';
import 'package:mobile_nebula/screens/MainScreen.dart';
import 'package:mobile_nebula/screens/EnrollmentScreen.dart';
import 'package:mobile_nebula/services/settings.dart';
import 'package:flutter_web_plugins/url_strategy.dart';
import 'package:mobile_nebula/services/theme.dart';
import 'package:mobile_nebula/services/utils.dart';
import 'package:sentry_flutter/sentry_flutter.dart';

Future<void> main() async {
  usePathUrlStrategy();

  var settings = Settings();
  if (settings.trackErrors) {
    await SentryFlutter.init((options) {
      options.dsn = 'https://96106df405ade3f013187dfc8e4200e7@o920269.ingest.us.sentry.io/4508132321001472';
      // Capture all traces.  May need to adjust if overwhelming
      options.tracesSampleRate = 1.0;
      // For each trace, capture all profiles
      options.profilesSampleRate = 1.0;
    }, appRunner: () => runApp(Main()));
  } else {
    runApp(Main());
  }
}

//TODO: EventChannel might be better than the stream controller we are using now

class Main extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) => App();
}

class App extends StatefulWidget {
  @override
  _AppState createState() => _AppState();
}

class _AppState extends State<App> {
  final settings = Settings();
  Brightness brightness = SchedulerBinding.instance.platformDispatcher.platformBrightness;
  StreamController dnEnrolled = StreamController.broadcast();

  @override
  void initState() {
    //TODO: wait until settings is ready?
    settings.onChange().listen((_) {
      setState(() {
        if (settings.useSystemColors) {
          brightness = SchedulerBinding.instance.platformDispatcher.platformBrightness;
        } else {
          brightness = settings.darkMode ? Brightness.dark : Brightness.light;
        }
      });
    });

    // Listen to changes to the system brightness mode, update accordingly
    final dispatcher = SchedulerBinding.instance.platformDispatcher;
    dispatcher.onPlatformBrightnessChanged = () {
      if (settings.useSystemColors) {
        setState(() {
          brightness = dispatcher.platformBrightness;
        });
      }
    };

    super.initState();
  }

  @override
  void dispose() {
    dnEnrolled.close();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    TextTheme textTheme = Utils.createTextTheme(context, "Public Sans", "Public Sans");
    MaterialTheme theme = MaterialTheme(textTheme);

    return PlatformProvider(
      settings: PlatformSettingsData(iosUsesMaterialWidgets: true),
      builder:
          (context) => PlatformApp(
            debugShowCheckedModeBanner: false,
            localizationsDelegates: <LocalizationsDelegate<dynamic>>[
              DefaultMaterialLocalizations.delegate,
              DefaultWidgetsLocalizations.delegate,
              DefaultCupertinoLocalizations.delegate,
            ],
            title: 'Nebula',
            material: (_, __) {
              return new MaterialAppData(
                themeMode: brightness == Brightness.light ? ThemeMode.light : ThemeMode.dark,
                theme: brightness == Brightness.light ? theme.light() : theme.dark(),
              );
            },
            cupertino: (_, __) => CupertinoAppData(theme: CupertinoThemeData(brightness: brightness)),
            onGenerateRoute: (settings) {
              if (settings.name == '/') {
                return platformPageRoute(context: context, builder: (context) => MainScreen(this.dnEnrolled));
              }

              final uri = Uri.parse(settings.name!);
              if (uri.path == EnrollmentScreen.routeName) {
                // TODO: maybe implement this as a dialog instead of a page, you can stack multiple enrollment screens which is annoying in dev
                return platformPageRoute(
                  context: context,
                  builder:
                      (context) =>
                          EnrollmentScreen(code: EnrollmentScreen.parseCode(settings.name!), stream: this.dnEnrolled),
                );
              }

              return null;
            },
          ),
    );
  }
}