import 'dart:io';

import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_crashlytics/firebase_crashlytics.dart';
import 'package:flutter/material.dart';
import 'package:flutter_background_geolocation/flutter_background_geolocation.dart' as bg;
import 'package:rate_my_app/rate_my_app.dart';
import 'package:traccar_client/quick_actions.dart';

import 'l10n/app_localizations.dart';
import 'main_screen.dart';
import 'preferences.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  FlutterError.onError = FirebaseCrashlytics.instance.recordFlutterFatalError;
  await Preferences.init();
  await bg.BackgroundGeolocation.ready(Preferences.geolocationConfig());
  if (Platform.isAndroid) {
    await bg.BackgroundGeolocation.registerHeadlessTask(headlessTask);
  }
  bg.BackgroundGeolocation.onHeartbeat((bg.HeartbeatEvent event) async {
    await bg.BackgroundGeolocation.getCurrentPosition(samples: 1, persist: true);
  });
  runApp(const MainApp());
}

@pragma('vm:entry-point')
void headlessTask(bg.HeadlessEvent headlessEvent) async {
  if (headlessEvent.name == bg.Event.HEARTBEAT) {
    await bg.BackgroundGeolocation.getCurrentPosition(samples: 1, persist: true);
  }
}

class MainApp extends StatefulWidget {
  const MainApp({super.key});

  @override
  State<MainApp> createState() => _MainAppState();
}

class _MainAppState extends State<MainApp> {
  RateMyApp rateMyApp = RateMyApp(minDays: 0, minLaunches: 0);

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      await rateMyApp.init();
      if (mounted && rateMyApp.shouldOpenDialog) {  
        rateMyApp.showRateDialog(context);
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      localizationsDelegates: AppLocalizations.localizationsDelegates,
      supportedLocales: AppLocalizations.supportedLocales,
      localeResolutionCallback: (locale, supported) => supported.firstWhere((l) => l.languageCode == 'en'),
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(
          seedColor: Colors.green,
          brightness: Brightness.light,
        ),
      ),
      darkTheme: ThemeData(
        colorScheme: ColorScheme.fromSeed(
          seedColor: Colors.green,
          brightness: Brightness.dark,
        ),
      ),
      home: Stack(
        children: const [
          QuickActionsInitializer(),
          MainScreen(),
        ],
      ),
    );
  }
}