Files
mileograph_flutter/lib/ui/app_shell.dart
Pete Gregory 587933fa50
Some checks failed
Release / meta (push) Failing after 9s
Release / android-build (push) Has been skipped
Release / linux-build (push) Has been skipped
Release / release-dev (push) Has been skipped
Release / release-master (push) Has been skipped
fix navbar freezing fix
2025-12-17 17:41:09 +00:00

335 lines
11 KiB
Dart

import 'package:dynamic_color/dynamic_color.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:go_router/go_router.dart';
import 'package:mileograph_flutter/components/login/login.dart';
import 'package:mileograph_flutter/components/pages/calculator.dart';
import 'package:mileograph_flutter/components/pages/calculator_details.dart';
import 'package:mileograph_flutter/components/pages/dashboard.dart';
import 'package:mileograph_flutter/components/pages/legs.dart';
import 'package:mileograph_flutter/components/pages/loco_legs.dart';
import 'package:mileograph_flutter/components/pages/loco_timeline.dart';
import 'package:mileograph_flutter/components/pages/new_entry.dart';
import 'package:mileograph_flutter/components/pages/new_traction.dart';
import 'package:mileograph_flutter/components/pages/traction.dart';
import 'package:mileograph_flutter/components/pages/trips.dart';
import 'package:mileograph_flutter/services/authservice.dart';
import 'package:mileograph_flutter/services/data_service.dart';
import 'package:mileograph_flutter/services/navigation_guard.dart';
import 'package:provider/provider.dart';
final GlobalKey<NavigatorState> _shellNavigatorKey = GlobalKey<NavigatorState>();
const List<String> _contentPages = [
"/",
"/calculator",
"/legs",
"/traction",
"/trips",
"/add",
];
const int _addTabIndex = 5;
int tabIndexForPath(String path) {
final newIndex = _contentPages.indexWhere((routePath) {
if (path == routePath) return true;
if (routePath == '/') return path == '/';
return path.startsWith('$routePath/');
});
return newIndex < 0 ? 0 : newIndex;
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
late final GoRouter _router;
bool _routerInitialized = false;
final ColorScheme defaultLight = ColorScheme.fromSeed(seedColor: Colors.red);
final ColorScheme defaultDark = ColorScheme.fromSeed(
seedColor: Colors.red,
brightness: Brightness.dark,
);
@override
void didChangeDependencies() {
super.didChangeDependencies();
if (_routerInitialized) return;
_routerInitialized = true;
final auth = context.read<AuthService>();
_router = GoRouter(
refreshListenable: auth,
redirect: (context, state) {
final loggedIn = auth.isLoggedIn;
final loggingIn = state.uri.toString() == '/login';
if (!loggedIn && !loggingIn) return '/login';
if (loggedIn && loggingIn) return '/';
return null;
},
routes: [
ShellRoute(
navigatorKey: _shellNavigatorKey,
builder: (context, state, child) => MyHomePage(child: child),
routes: [
GoRoute(path: '/', builder: (context, state) => const Dashboard()),
GoRoute(
path: '/calculator',
builder: (context, state) => CalculatorPage(),
),
GoRoute(
path: '/calculator/details',
builder: (context, state) =>
CalculatorDetailsPage(result: state.extra),
),
GoRoute(path: '/legs', builder: (context, state) => LegsPage()),
GoRoute(
path: '/traction',
builder: (context, state) => TractionPage(),
),
GoRoute(
path: '/traction/:id/timeline',
builder: (_, state) {
final idParam = state.pathParameters['id'];
final locoId = int.tryParse(idParam ?? '') ?? 0;
final extra = state.extra;
String label = state.uri.queryParameters['label'] ?? '';
if (extra is Map && extra['label'] is String) {
label = extra['label'] as String;
} else if (extra is String && extra.isNotEmpty) {
label = extra;
}
if (label.trim().isEmpty) label = 'Loco $locoId';
return LocoTimelinePage(locoId: locoId, locoLabel: label);
},
),
GoRoute(
path: '/traction/:id/legs',
builder: (_, state) {
final idParam = state.pathParameters['id'];
final locoId = int.tryParse(idParam ?? '') ?? 0;
final extra = state.extra;
String label = state.uri.queryParameters['label'] ?? '';
if (extra is Map && extra['label'] is String) {
label = extra['label'] as String;
} else if (extra is String && extra.isNotEmpty) {
label = extra;
}
if (label.trim().isEmpty) label = 'Loco $locoId';
return LocoLegsPage(locoId: locoId, locoLabel: label);
},
),
GoRoute(
path: '/traction/new',
builder: (context, state) => const NewTractionPage(),
),
GoRoute(path: '/trips', builder: (context, state) => TripsPage()),
GoRoute(path: '/add', builder: (context, state) => NewEntryPage()),
GoRoute(
path: '/legs/edit/:id',
builder: (_, state) {
final idParam = state.pathParameters['id'];
final legId = idParam == null ? null : int.tryParse(idParam);
return NewEntryPage(editLegId: legId);
},
),
],
),
GoRoute(path: '/login', builder: (context, state) => const LoginScreen()),
],
);
}
@override
Widget build(BuildContext context) {
return DynamicColorBuilder(
builder: (ColorScheme? lightDynamic, ColorScheme? darkDynamic) {
return MaterialApp.router(
title: 'Mileograph',
routerConfig: _router,
theme: ThemeData(
useMaterial3: true,
colorScheme: lightDynamic ?? defaultLight,
),
darkTheme: ThemeData(
useMaterial3: true,
colorScheme: darkDynamic ?? defaultDark,
),
themeMode: ThemeMode.system,
);
},
);
}
}
class MyHomePage extends StatefulWidget {
final Widget child;
const MyHomePage({super.key, required this.child});
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
List<String> get contentPages => _contentPages;
Future<void> _onItemTapped(int index, int currentIndex) async {
if (index < 0 || index >= contentPages.length || index == currentIndex) {
return;
}
await NavigationGuard.attemptNavigation(() async {
if (!mounted) return;
context.go(contentPages[index]);
});
}
int? _lastTabIndex;
final List<int> _tabHistory = [];
bool _handlingBackNavigation = false;
bool _fetched = false;
@override
void didChangeDependencies() {
super.didChangeDependencies();
if (_fetched) return;
_fetched = true;
WidgetsBinding.instance.addPostFrameCallback((_) {
Future(() async {
if (!mounted) return;
final data = context.read<DataService>();
final auth = context.read<AuthService>();
await auth.tryRestoreSession();
if (!auth.isLoggedIn) return;
data.fetchEventFields();
if (data.homepageStats == null) {
data.fetchHomepageStats();
}
if (data.legs.isEmpty) {
data.fetchLegs();
}
if (data.traction.isEmpty) {
data.fetchHadTraction();
}
if (data.onThisDay.isEmpty) {
data.fetchOnThisDay();
}
if (data.tripDetails.isEmpty) {
data.fetchTripDetails();
}
});
});
}
@override
Widget build(BuildContext context) {
final uri = GoRouterState.of(context).uri;
final pageIndex = tabIndexForPath(uri.path);
_recordTabChange(pageIndex);
if (pageIndex != _addTabIndex) {
NavigationGuard.unregister();
}
final homepageReady = context.select<DataService, bool>(
(data) => data.homepageStats != null || !data.isHomepageLoading,
);
final auth = context.read<AuthService>();
final currentPage = homepageReady
? widget.child
: const Center(child: CircularProgressIndicator());
return PopScope(
canPop: false,
onPopInvokedWithResult: (didPop, _) async {
if (didPop) return;
final shellNav = _shellNavigatorKey.currentState;
if (shellNav != null && shellNav.canPop()) {
shellNav.pop();
return;
}
if (_tabHistory.isNotEmpty) {
final previousTab = _tabHistory.removeLast();
if (!mounted) return;
_handlingBackNavigation = true;
context.go(contentPages[previousTab]);
return;
}
if (pageIndex != 0) {
if (!mounted) return;
_handlingBackNavigation = true;
context.go(contentPages[0]);
return;
}
SystemNavigator.pop();
},
child: Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: Text.rich(
TextSpan(
children: const [
TextSpan(text: "Mile"),
TextSpan(text: "O", style: TextStyle(color: Colors.red)),
TextSpan(text: "graph"),
],
style: const TextStyle(
decoration: TextDecoration.none,
color: Colors.white,
fontFamily: "Tomatoes",
),
),
),
actions: [
const IconButton(onPressed: null, icon: Icon(Icons.account_circle)),
IconButton(onPressed: auth.logout, icon: const Icon(Icons.logout)),
],
),
bottomNavigationBar: NavigationBar(
selectedIndex: pageIndex,
onDestinationSelected: (int index) => _onItemTapped(index, pageIndex),
destinations: const [
NavigationDestination(icon: Icon(Icons.home), label: "Home"),
NavigationDestination(icon: Icon(Icons.route), label: "Calculator"),
NavigationDestination(icon: Icon(Icons.list), label: "Entries"),
NavigationDestination(icon: Icon(Icons.train), label: "Traction"),
NavigationDestination(icon: Icon(Icons.book), label: "Trips"),
NavigationDestination(icon: Icon(Icons.add), label: "Add"),
],
),
body: currentPage,
),
);
}
void _recordTabChange(int pageIndex) {
final last = _lastTabIndex;
if (last == null) {
_lastTabIndex = pageIndex;
return;
}
if (last == pageIndex) return;
if (_handlingBackNavigation) {
_handlingBackNavigation = false;
_lastTabIndex = pageIndex;
return;
}
if (_tabHistory.isEmpty || _tabHistory.last != last) {
_tabHistory.add(last);
}
_lastTabIndex = pageIndex;
}
}