main.dart

import 'package:flutter/material.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:intl/date_symbol_data_local.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:timezone/data/latest.dart' as tz;
import 'package:timezone/timezone.dart' as tz;
import 'package:flutter_phoenix/flutter_phoenix.dart';

import 'model/recurring_transaction.dart';
import 'providers/theme_provider.dart';
import 'routes/routes.dart';
import 'ui/theme/app_theme.dart';
import 'services/notifications/notifications_service.dart';

late SharedPreferences _sharedPreferences;

void main() async {
  await dotenv.load(fileName: ".env");

  WidgetsFlutterBinding.ensureInitialized();
  NotificationService().requestNotificationPermissions();
  NotificationService().initializeNotifications();
  tz.initializeTimeZones();
  tz.setLocalLocation(tz.local);

  _sharedPreferences = await SharedPreferences.getInstance();

  // KV migration from the 'is_first_login' key to 'onboarding_completed'
  // to correctly handle the completion of the onboarding process
  // (To consider to remove in later future)
  final bool? isFirstLoginCachedValue =
      _sharedPreferences.getBool('is_first_login');
  final bool isOnBoardingCompletedKeyNotSaved =
      _sharedPreferences.getBool('onboarding_completed') == null;
  if (isFirstLoginCachedValue != null && isOnBoardingCompletedKeyNotSaved) {
    await _sharedPreferences.setBool(
        'onboarding_completed', !isFirstLoginCachedValue);
  }

  // perform recurring transactions checks
  DateTime? lastCheckGetPref = _sharedPreferences
              .getString('last_recurring_transactions_check') !=
          null
      ? DateTime.parse(
          _sharedPreferences.getString('last_recurring_transactions_check')!)
      : null;
  DateTime? lastRecurringTransactionsCheck = lastCheckGetPref;

  if (lastRecurringTransactionsCheck == null ||
      DateTime.now().difference(lastRecurringTransactionsCheck).inDays >= 1) {
    RecurringTransactionMethods().checkRecurringTransactions();
    // update last recurring transactions runtime
    await _sharedPreferences.setString(
        'last_recurring_transactions_check', DateTime.now().toIso8601String());
  }

  initializeDateFormatting('it_IT', null).then(
      (_) => runApp(Phoenix(child: const ProviderScope(child: Launcher()))));
}

class Launcher extends ConsumerWidget {
  const Launcher({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final bool isOnboardingCompleted =
        _sharedPreferences.getBool('onboarding_completed') ?? false;

    final appThemeState = ref.watch(appThemeStateNotifier);
    return MaterialApp(
      title: 'Sossoldi',
      theme: AppTheme.lightTheme,
      darkTheme: AppTheme.darkTheme,
      themeMode:
          appThemeState.isDarkModeEnabled ? ThemeMode.dark : ThemeMode.light,
      onGenerateRoute: makeRoute,
      initialRoute: !isOnboardingCompleted ? '/onboarding' : '/',
    );
  }
}