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yves
2026-07-27 14:42:23 +02:00
commit 833c68a189
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lib/features/fleet/fleet_screen.dart
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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../core/models/models.dart';
import '../../core/network/api_exception.dart';
import '../../core/theme/theme_x.dart';
import '../../core/widgets/error_banner.dart';
import '../../data/repositories/nodes_repository.dart';
import 'widgets/fleet_card_grid.dart';
import 'widgets/fleet_table.dart';
import 'widgets/node_form_dialog.dart';
class FleetScreen extends ConsumerWidget {
const FleetScreen({super.key});
Future<void> _delete(BuildContext context, WidgetRef ref, RemoteNode node) async {
final confirmed = await showDialog<bool>(
context: context,
builder: (context) => AlertDialog(
title: const Text('Remove node?'),
content: Text('This removes "${node.name}" from the registry. It does not affect that host.'),
actions: [
TextButton(onPressed: () => Navigator.of(context).pop(false), child: const Text('Cancel')),
FilledButton(
style: FilledButton.styleFrom(backgroundColor: context.status.critical),
onPressed: () => Navigator.of(context).pop(true),
child: const Text('Remove'),
),
],
),
);
if (confirmed != true) return;
final repo = ref.read(nodesRepositoryProvider);
if (repo == null) return;
try {
await repo.delete(node.id);
ref.invalidate(remoteNodesListProvider);
ref.invalidate(aggregatedNodesProvider);
} catch (e) {
final message = e is ApiException ? e.userMessage : e.toString();
if (context.mounted) {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(message)));
}
}
}
@override
Widget build(BuildContext context, WidgetRef ref) {
final nodesAsync = ref.watch(remoteNodesListProvider);
final aggregatedAsync = ref.watch(aggregatedNodesProvider);
return ListView(
padding: const EdgeInsets.all(24),
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text('REGISTERED NODES', style: context.text.titleSmall),
FilledButton.icon(
onPressed: () => showNodeFormDialog(context),
icon: const Icon(Icons.add, size: 17),
label: const Text('Register node'),
),
],
),
const SizedBox(height: 10),
nodesAsync.when(
loading: () => const Padding(
padding: EdgeInsets.symmetric(vertical: 40),
child: Center(child: CircularProgressIndicator()),
),
error: (error, stackTrace) => ErrorBanner(
message: error is ApiException ? error.userMessage : error.toString(),
onRetry: () => ref.invalidate(remoteNodesListProvider),
),
data: (nodes) => FleetTable(
nodes: nodes,
aggregated: aggregatedAsync.value,
onEdit: (node) => showNodeFormDialog(context, existing: node),
onDelete: (node) => _delete(context, ref, node),
),
),
const SizedBox(height: 22),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text('AGGREGATED SERVICES', style: context.text.titleSmall),
Text(
'live fan-out via /nodes/aggregated',
style: context.dataStyles.dataMonoSmall,
),
],
),
const SizedBox(height: 10),
aggregatedAsync.when(
loading: () => const Padding(
padding: EdgeInsets.symmetric(vertical: 40),
child: Center(child: CircularProgressIndicator()),
),
error: (error, stackTrace) => ErrorBanner(
message: error is ApiException ? error.userMessage : error.toString(),
onRetry: () => ref.invalidate(aggregatedNodesProvider),
),
data: (entries) => FleetCardGrid(entries: entries),
),
],
);
}
}
lib/features/fleet/widgets/fleet_card_grid.dart
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import 'package:flutter/material.dart';
import '../../../core/models/models.dart';
import '../../../core/models/severity_mapping.dart';
import '../../../core/theme/theme_x.dart';
import '../../../core/widgets/empty_state.dart';
import '../../../core/widgets/status_pill.dart';
/// One card per registered node showing its live services (via
/// `/nodes/aggregated`), or an inline error card if this particular node
/// was unreachable — a per-entry condition the local API itself reports,
/// distinct from the aggregated fetch as a whole failing.
class FleetCardGrid extends StatelessWidget {
const FleetCardGrid({super.key, required this.entries});
final List<AggregatedNodeStatus> entries;
@override
Widget build(BuildContext context) {
if (entries.isEmpty) {
return const EmptyState(
icon: Icons.hub_outlined,
title: 'Nothing to show yet',
message: 'Register a node to see its live services here.',
);
}
return GridView.builder(
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
gridDelegate: const SliverGridDelegateWithMaxCrossAxisExtent(
maxCrossAxisExtent: 320,
mainAxisExtent: 180,
crossAxisSpacing: 12,
mainAxisSpacing: 12,
),
itemCount: entries.length,
itemBuilder: (context, index) => _NodeCard(entry: entries[index]),
);
}
}
class _NodeCard extends StatelessWidget {
const _NodeCard({required this.entry});
final AggregatedNodeStatus entry;
@override
Widget build(BuildContext context) {
final hasError = entry.error != null;
return Container(
padding: const EdgeInsets.all(14),
decoration: BoxDecoration(
color: context.colors.surface,
borderRadius: BorderRadius.circular(10),
border: Border.all(
color: hasError ? context.status.critical.withValues(alpha: 0.4) : context.colors.outlineVariant,
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(entry.node.name, style: context.text.labelLarge),
const SizedBox(height: 10),
Expanded(
child: hasError
? _ErrorCallout(message: entry.error!)
: entry.services.isEmpty
? Text('No services reported.', style: context.text.bodySmall)
: ListView(
padding: EdgeInsets.zero,
children: [
for (final service in entry.services)
Padding(
padding: const EdgeInsets.symmetric(vertical: 3.5),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Expanded(
child: Text(
service.name,
overflow: TextOverflow.ellipsis,
style: context.text.bodyMedium,
),
),
StatusPill(
label: service.status,
severity: severityForServiceStatus(service.status),
),
],
),
),
],
),
),
],
),
);
}
}
class _ErrorCallout extends StatelessWidget {
const _ErrorCallout({required this.message});
final String message;
@override
Widget build(BuildContext context) {
return Container(
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
color: Color.alphaBlend(context.status.critical.withValues(alpha: 0.08), context.colors.surface),
borderRadius: BorderRadius.circular(8),
border: Border.all(color: context.status.critical.withValues(alpha: 0.35)),
),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Icon(Icons.error_outline, size: 15, color: context.status.critical),
const SizedBox(width: 8),
Expanded(
child: Text(
message,
style: context.dataStyles.dataMonoSmall,
maxLines: 3,
overflow: TextOverflow.ellipsis,
),
),
],
),
);
}
}
lib/features/fleet/widgets/fleet_table.dart
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import 'package:collection/collection.dart';
import 'package:flutter/material.dart';
import '../../../core/models/models.dart';
import '../../../core/theme/status_colors.dart';
import '../../../core/theme/theme_x.dart';
import '../../../core/utils/relative_time.dart';
import '../../../core/widgets/data_table_scaffold.dart';
import '../../../core/widgets/empty_state.dart';
import '../../../core/widgets/mono_text.dart';
import '../../../core/widgets/status_pill.dart';
class FleetTable extends StatelessWidget {
const FleetTable({
super.key,
required this.nodes,
required this.aggregated,
required this.onEdit,
required this.onDelete,
});
final List<RemoteNode> nodes;
/// Null while the aggregated fetch is still loading/erroring — reachability
/// then shows as "unknown" rather than guessing.
final List<AggregatedNodeStatus>? aggregated;
final void Function(RemoteNode node) onEdit;
final void Function(RemoteNode node) onDelete;
({String label, Severity severity}) _reachability(RemoteNode node) {
final entry = aggregated?.where((a) => a.node.id == node.id).firstOrNull;
if (entry == null) return (label: 'unknown', severity: Severity.neutral);
return entry.error == null
? (label: 'online', severity: Severity.good)
: (label: 'unreachable', severity: Severity.critical);
}
@override
Widget build(BuildContext context) {
return DataTableScaffold(
empty: const EmptyState(
icon: Icons.hub_outlined,
title: 'No nodes registered',
message: 'Register a sibling NodeMaster host to see it here.',
),
columns: const [
DataColumn(label: Text('Node')),
DataColumn(label: Text('URL')),
DataColumn(label: Text('Tags')),
DataColumn(label: Text('Status')),
DataColumn(label: Text('Last seen')),
DataColumn(label: Text('')),
],
rows: [
for (final node in nodes)
DataRow(
cells: [
DataCell(
Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: [
Text(node.name, style: context.text.labelLarge),
if (node.description?.isNotEmpty == true)
Text(node.description!, style: context.text.bodySmall),
],
),
),
DataCell(MonoText(node.url)),
DataCell(
Wrap(
spacing: 4,
children: [
for (final tag in node.tags)
Container(
padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
decoration: BoxDecoration(
color: context.colors.surfaceContainerHighest,
borderRadius: BorderRadius.circular(4),
),
child: Text(tag, style: context.dataStyles.dataMonoSmall),
),
],
),
),
DataCell(Builder(
builder: (context) {
final r = _reachability(node);
return StatusPill(label: r.label, severity: r.severity);
},
)),
DataCell(
Text(
node.lastSeen == null ? '—' : formatRelative(node.lastSeen!.toLocal()),
style: context.text.bodySmall,
),
),
DataCell(
Row(
mainAxisSize: MainAxisSize.min,
children: [
IconButton(
tooltip: 'Edit',
icon: const Icon(Icons.edit_outlined, size: 18),
onPressed: () => onEdit(node),
),
IconButton(
tooltip: 'Remove',
icon: const Icon(Icons.delete_outline, size: 18),
onPressed: () => onDelete(node),
),
],
),
),
],
),
],
);
}
}
lib/features/fleet/widgets/node_form_dialog.dart
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import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../../core/models/models.dart';
import '../../../core/network/api_exception.dart';
import '../../../data/repositories/nodes_repository.dart';
/// Add/edit dialog for a registered [RemoteNode]. This only edits the
/// registry entry (name/url/description/tags) — reachability is never
/// user-editable, it's always computed live via `/nodes/aggregated`.
Future<void> showNodeFormDialog(BuildContext context, {RemoteNode? existing}) {
return showDialog<void>(
context: context,
builder: (context) => _NodeFormDialog(existing: existing),
);
}
class _NodeFormDialog extends ConsumerStatefulWidget {
const _NodeFormDialog({this.existing});
final RemoteNode? existing;
@override
ConsumerState<_NodeFormDialog> createState() => _NodeFormDialogState();
}
class _NodeFormDialogState extends ConsumerState<_NodeFormDialog> {
final _formKey = GlobalKey<FormState>();
late final _nameController = TextEditingController(text: widget.existing?.name);
late final _urlController = TextEditingController(text: widget.existing?.url);
late final _descriptionController = TextEditingController(text: widget.existing?.description);
late final _tagsController = TextEditingController(text: widget.existing?.tags.join(', '));
bool _saving = false;
String? _error;
@override
void dispose() {
_nameController.dispose();
_urlController.dispose();
_descriptionController.dispose();
_tagsController.dispose();
super.dispose();
}
String? _validateUrl(String? value) {
final trimmed = value?.trim() ?? '';
if (trimmed.isEmpty) return 'Required.';
final uri = Uri.tryParse(trimmed);
if (uri == null || !uri.hasScheme || !uri.hasAuthority) {
return 'Enter a full URL, e.g. https://edge-02.local:8080';
}
return null;
}
Future<void> _save() async {
if (!(_formKey.currentState?.validate() ?? false)) return;
setState(() {
_saving = true;
_error = null;
});
final repo = ref.read(nodesRepositoryProvider);
if (repo == null) {
setState(() {
_saving = false;
_error = 'No active connection.';
});
return;
}
var url = _urlController.text.trim();
if (url.endsWith('/')) url = url.substring(0, url.length - 1);
final tags = _tagsController.text
.split(',')
.map((t) => t.trim())
.where((t) => t.isNotEmpty)
.toList();
final description = _descriptionController.text.trim();
final draft = (widget.existing ?? const RemoteNode(name: '', url: '')).copyWith(
name: _nameController.text.trim(),
url: url,
description: description.isEmpty ? null : description,
tags: tags,
);
try {
if (widget.existing == null) {
await repo.add(draft);
} else {
await repo.update(widget.existing!.id, draft);
}
ref.invalidate(remoteNodesListProvider);
if (mounted) Navigator.of(context).pop();
} catch (e) {
setState(() {
_saving = false;
_error = e is ApiException ? e.userMessage : e.toString();
});
}
}
@override
Widget build(BuildContext context) {
return AlertDialog(
title: Text(widget.existing == null ? 'Register node' : 'Edit node'),
content: Form(
key: _formKey,
child: SizedBox(
width: 420,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
TextFormField(
controller: _nameController,
decoration: const InputDecoration(labelText: 'Name'),
validator: (v) => (v == null || v.trim().isEmpty) ? 'Required.' : null,
),
const SizedBox(height: 14),
TextFormField(
controller: _urlController,
decoration: const InputDecoration(
labelText: 'Base URL',
hintText: 'https://edge-02.local:8080',
),
validator: _validateUrl,
keyboardType: TextInputType.url,
),
const SizedBox(height: 14),
TextFormField(
controller: _descriptionController,
decoration: const InputDecoration(labelText: 'Description (optional)'),
),
const SizedBox(height: 14),
TextFormField(
controller: _tagsController,
decoration: const InputDecoration(
labelText: 'Tags (optional, comma-separated)',
hintText: 'prod, db',
),
),
if (_error != null) ...[
const SizedBox(height: 12),
Text(_error!, style: TextStyle(color: Theme.of(context).colorScheme.error)),
],
],
),
),
),
actions: [
TextButton(
onPressed: _saving ? null : () => Navigator.of(context).pop(),
child: const Text('Cancel'),
),
FilledButton(
onPressed: _saving ? null : _save,
child: _saving
? const SizedBox(width: 16, height: 16, child: CircularProgressIndicator(strokeWidth: 2))
: const Text('Save'),
),
],
);
}
}