bvandeusen
d115c267f4
Cold launch flow: no server-url -> /server-url. URL set, no token -> /login. Token present -> /home with shell. VersionGate runs once when the URL changes, hits /healthz, blocks if min_client_version > package version. /home is a placeholder until Task 14. Replaces Navigator.pushReplacementNamed in server_url_screen + login_screen with context.go now that go_router owns the routes.
68 lines
2.3 KiB
Dart
68 lines
2.3 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:package_info_plus/package_info_plus.dart';
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import 'package:pub_semver/pub_semver.dart';
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import '../../api/client.dart';
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import '../../api/endpoints/health.dart';
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import '../../auth/auth_provider.dart';
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final _versionCheckProvider = FutureProvider<_VersionResult>((ref) async {
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final url = await ref.watch(serverUrlProvider.future);
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if (url == null) return _VersionResult.skipped;
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final dio = ApiClient.buildDio(baseUrl: url, tokenResolver: () async => null);
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final body = await HealthApi(dio).check();
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final min = body['min_client_version'];
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if (min == null || min.isEmpty) return _VersionResult.skipped;
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final info = await PackageInfo.fromPlatform();
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final mine = Version.parse(info.version);
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final required = Version.parse(min);
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return mine < required ? _VersionResult.tooOld : _VersionResult.ok;
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});
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enum _VersionResult { ok, tooOld, skipped }
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class VersionGate extends ConsumerWidget {
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const VersionGate({required this.child, super.key});
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final Widget child;
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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return ref.watch(_versionCheckProvider).when(
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data: (r) => r == _VersionResult.tooOld ? const _TooOldScreen() : child,
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error: (_, __) => child, // soft-fail if /healthz is unreachable; let the rest of the flow surface a real error
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loading: () => const Scaffold(body: Center(child: CircularProgressIndicator())),
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);
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}
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}
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class _TooOldScreen extends StatelessWidget {
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const _TooOldScreen();
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@override
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Widget build(BuildContext context) {
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return const Scaffold(
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body: SafeArea(
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child: Padding(
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padding: EdgeInsets.all(24),
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child: Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(
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'Update required',
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style: TextStyle(fontSize: 24, fontWeight: FontWeight.w500),
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),
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SizedBox(height: 12),
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Text(
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'This client is too old for that Minstrel server. Install the latest build to continue.',
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textAlign: TextAlign.center,
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),
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],
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),
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),
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),
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),
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);
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}
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}
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