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import 'dart:ui';
import 'package:flutter/material.dart';
import '../app_settings.dart';
import '../core/core_controller.dart';
import '../l10n/app_localizations.dart';
import 'widgets.dart';
/// The first run: the user picks a language and a country, and the
/// country's sites go directly (the core's routing region).
class WelcomePage extends StatefulWidget {
const WelcomePage({super.key, required this.core, required this.settings});
final CoreController core;
final AppSettings settings;
@override
State<WelcomePage> createState() => _WelcomePageState();
}
class _WelcomePageState extends State<WelcomePage> {
late String _language;
late String _region;
/// The region follows the language until the user picks one.
bool _regionPicked = false;
bool _saving = false;
@override
void initState() {
super.initState();
final system = PlatformDispatcher.instance.locale;
_language = widget.settings.language.isNotEmpty
? widget.settings.language
: AppSettings.languageFor(system);
_region = AppSettings.suggestedRegion(_language, system.countryCode);
}
void _pickLanguage(String language) {
setState(() {
_language = language;
if (!_regionPicked) {
_region = AppSettings.regionForLanguage(language) ?? _region;
}
});
// Show the page in the chosen language at once.
widget.settings.update(language: language);
}
Future<void> _start() async {
setState(() => _saving = true);
final region = _region;
await runShowingErrors(
context,
() => widget.core.editSettings((config) {
final routing = config['routing'];
if (routing is! Map<String, Object?>) return;
routing['enabled'] = region.isNotEmpty;
if (region.isNotEmpty) routing['region'] = region;
}),
);
widget.settings.update(language: _language, firstRun: false);
}
@override
Widget build(BuildContext context) {
final l = AppLocalizations.of(context);
final theme = Theme.of(context);
return Scaffold(
body: Center(
child: SingleChildScrollView(
padding: const EdgeInsets.all(24),
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 460),
child: Panel(
padding: const EdgeInsets.all(32),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Icon(
Icons.shield_rounded,
size: 56,
color: theme.colorScheme.primary,
),
const SizedBox(height: 16),
Text(
l.welcomeTitle,
textAlign: TextAlign.center,
style: theme.textTheme.headlineSmall?.copyWith(
fontWeight: FontWeight.w600,
),
),
const SizedBox(height: 8),
Text(
l.welcomeBody,
textAlign: TextAlign.center,
style: theme.textTheme.bodyMedium?.copyWith(
color: theme.colorScheme.onSurfaceVariant,
),
),
const SizedBox(height: 28),
DropdownButtonFormField<String>(
initialValue: _language,
decoration: InputDecoration(
labelText: l.language,
prefixIcon: const Icon(Icons.translate_rounded),
border: const OutlineInputBorder(),
),
onChanged: (v) => _pickLanguage(v!),
items: [
for (final code in AppSettings.supportedLanguages)
DropdownMenuItem(
value: code,
child: Text(
languageNames[code]!,
style: languageStyle(code),
),
),
],
),
const SizedBox(height: 16),
DropdownButtonFormField<String>(
key: ValueKey(_region),
initialValue: _region,
decoration: InputDecoration(
labelText: l.region,
helperText: l.routingDirectHint,
helperMaxLines: 3,
prefixIcon: const Icon(Icons.alt_route_rounded),
border: const OutlineInputBorder(),
),
onChanged: (v) => setState(() {
_region = v!;
_regionPicked = true;
}),
items: [
for (final r in AppSettings.regions)
DropdownMenuItem(
value: r,
child: Text(regionName(l, r)),
),
],
),
const SizedBox(height: 28),
FilledButton(
style: FilledButton.styleFrom(
minimumSize: const Size.fromHeight(48),
),
onPressed: _saving ? null : _start,
child: Text(l.start),
),
],
),
),
),
),
),
);
}
}
arblant