897 lines
31 KiB
Dart
897 lines
31 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:go_router/go_router.dart';
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import 'package:mileograph_flutter/objects/objects.dart';
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import 'package:mileograph_flutter/services/dataService.dart';
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import 'package:provider/provider.dart';
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class TractionPage extends StatefulWidget {
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const TractionPage({
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super.key,
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this.selectionMode = false,
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this.onSelect,
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this.selectedKeys = const {},
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});
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final bool selectionMode;
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final ValueChanged<LocoSummary>? onSelect;
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final Set<String> selectedKeys;
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@override
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State<TractionPage> createState() => _TractionPageState();
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}
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class _TractionPageState extends State<TractionPage> {
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final _classController = TextEditingController();
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final _classFocusNode = FocusNode();
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final _numberController = TextEditingController();
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final _nameController = TextEditingController();
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bool _mileageFirst = true;
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bool _initialised = false;
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bool _showAdvancedFilters = false;
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String? _selectedClass;
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late Set<String> _selectedKeys;
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final Map<String, TextEditingController> _dynamicControllers = {};
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final Map<String, String?> _enumSelections = {};
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@override
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void initState() {
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super.initState();
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_classController.addListener(_onClassTextChanged);
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}
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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if (!_initialised) {
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_initialised = true;
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_selectedKeys = {...widget.selectedKeys};
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WidgetsBinding.instance.addPostFrameCallback((_) {
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final data = context.read<DataService>();
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data.fetchClassList();
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data.fetchEventFields();
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_refreshTraction();
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});
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}
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}
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@override
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void dispose() {
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_classController.removeListener(_onClassTextChanged);
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_classController.dispose();
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_classFocusNode.dispose();
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_numberController.dispose();
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_nameController.dispose();
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for (final controller in _dynamicControllers.values) {
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controller.dispose();
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}
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super.dispose();
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}
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bool get _hasFilters {
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final dynamicFieldsUsed =
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_dynamicControllers.values.any(
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(controller) => controller.text.trim().isNotEmpty,
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) ||
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_enumSelections.values.any(
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(value) => (value ?? '').toString().trim().isNotEmpty,
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);
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return [
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_selectedClass,
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_classController.text,
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_numberController.text,
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_nameController.text,
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].any((value) => (value ?? '').toString().trim().isNotEmpty) ||
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dynamicFieldsUsed;
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}
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Future<void> _refreshTraction({bool append = false}) async {
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final data = context.read<DataService>();
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final filters = <String, dynamic>{};
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final name = _nameController.text.trim();
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if (name.isNotEmpty) filters['name'] = name;
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_dynamicControllers.forEach((key, controller) {
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final value = controller.text.trim();
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if (value.isNotEmpty) filters[key] = value;
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});
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_enumSelections.forEach((key, value) {
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if (value != null && value.toString().trim().isNotEmpty) {
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filters[key] = value;
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}
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});
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final hadOnly = !_hasFilters;
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await data.fetchTraction(
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hadOnly: hadOnly,
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locoClass: _selectedClass ?? _classController.text.trim(),
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locoNumber: _numberController.text.trim(),
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offset: append ? data.traction.length : 0,
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append: append,
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filters: filters,
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mileageFirst: _mileageFirst,
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);
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}
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void _clearFilters() {
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for (final controller in [
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_classController,
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_numberController,
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_nameController,
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]) {
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controller.clear();
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}
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for (final controller in _dynamicControllers.values) {
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controller.clear();
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}
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_enumSelections.clear();
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setState(() {
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_selectedClass = null;
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_mileageFirst = true;
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});
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_refreshTraction();
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}
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void _onClassTextChanged() {
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if (_selectedClass != null &&
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_classController.text.trim() != (_selectedClass ?? '')) {
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setState(() {
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_selectedClass = null;
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});
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}
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}
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List<EventField> _activeEventFields(List<EventField> fields) {
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return fields
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.where(
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(field) => ![
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'class',
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'number',
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'name',
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'build date',
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'build_date',
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].contains(field.name.toLowerCase()),
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)
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.toList();
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}
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void _ensureControllersForFields(List<EventField> fields) {
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for (final field in fields) {
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if (field.enumValues != null) {
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_enumSelections.putIfAbsent(field.name, () => null);
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} else {
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_dynamicControllers.putIfAbsent(
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field.name,
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() => TextEditingController(),
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);
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}
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}
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}
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@override
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Widget build(BuildContext context) {
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final data = context.watch<DataService>();
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final traction = data.traction;
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final classOptions = data.locoClasses;
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final isMobile = MediaQuery.of(context).size.width < 700;
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_ensureControllersForFields(data.eventFields);
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final extraFields = _activeEventFields(data.eventFields);
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final listView = RefreshIndicator(
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onRefresh: _refreshTraction,
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child: ListView(
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padding: const EdgeInsets.all(16),
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physics: const AlwaysScrollableScrollPhysics(),
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children: [
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Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'Fleet',
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style: Theme.of(context).textTheme.labelMedium,
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),
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const SizedBox(height: 2),
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Text(
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'Traction',
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style: Theme.of(context).textTheme.headlineSmall,
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),
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],
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),
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),
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Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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IconButton(
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tooltip: 'Refresh',
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onPressed: _refreshTraction,
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icon: const Icon(Icons.refresh),
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),
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const SizedBox(width: 8),
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FilledButton.icon(
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onPressed: () async {
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final createdClass = await context.push<String>(
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'/traction/new',
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);
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if (createdClass != null && createdClass.isNotEmpty) {
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_classController.text = createdClass;
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_selectedClass = createdClass;
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if (mounted) {
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_refreshTraction();
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}
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} else if (mounted && createdClass == '') {
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_refreshTraction();
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}
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},
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icon: const Icon(Icons.add),
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label: const Text('New Traction'),
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),
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],
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),
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],
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),
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const SizedBox(height: 12),
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Card(
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child: Padding(
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padding: const EdgeInsets.all(12),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(
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'Filters',
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style: Theme.of(context).textTheme.titleMedium,
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),
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TextButton(
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onPressed: _clearFilters,
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child: const Text('Clear'),
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),
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],
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),
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const SizedBox(height: 8),
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Wrap(
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spacing: 12,
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runSpacing: 12,
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children: [
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SizedBox(
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width: isMobile ? double.infinity : 240,
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child: RawAutocomplete<String>(
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textEditingController: _classController,
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focusNode: _classFocusNode,
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optionsBuilder: (TextEditingValue textEditingValue) {
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final query = textEditingValue.text.toLowerCase();
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if (query.isEmpty) {
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return classOptions;
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}
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return classOptions.where(
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(c) => c.toLowerCase().contains(query),
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);
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},
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fieldViewBuilder:
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(
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context,
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controller,
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focusNode,
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onFieldSubmitted,
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) {
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return TextField(
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controller: controller,
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focusNode: focusNode,
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decoration: const InputDecoration(
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labelText: 'Class',
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border: OutlineInputBorder(),
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),
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onSubmitted: (_) => _refreshTraction(),
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);
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},
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optionsViewBuilder: (context, onSelected, options) {
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final optionList = options.toList();
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if (optionList.isEmpty) {
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return const SizedBox.shrink();
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}
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final maxWidth = isMobile
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? MediaQuery.of(context).size.width - 64
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: 240.0;
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return Align(
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alignment: Alignment.topLeft,
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child: Material(
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elevation: 4,
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child: ConstrainedBox(
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constraints: BoxConstraints(
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maxWidth: maxWidth,
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maxHeight: 240,
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),
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child: ListView.builder(
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padding: EdgeInsets.zero,
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shrinkWrap: true,
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itemCount: optionList.length,
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itemBuilder: (context, index) {
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final option = optionList[index];
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return ListTile(
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title: Text(option),
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onTap: () => onSelected(option),
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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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onSelected: (String selection) {
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setState(() {
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_selectedClass = selection;
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_classController.text = selection;
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});
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_refreshTraction();
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},
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),
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),
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SizedBox(
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width: isMobile ? double.infinity : 220,
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child: TextField(
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controller: _numberController,
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decoration: const InputDecoration(
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labelText: 'Number',
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border: OutlineInputBorder(),
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),
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onSubmitted: (_) => _refreshTraction(),
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),
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),
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SizedBox(
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width: isMobile ? double.infinity : 220,
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child: TextField(
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controller: _nameController,
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decoration: const InputDecoration(
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labelText: 'Name',
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border: OutlineInputBorder(),
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),
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onSubmitted: (_) => _refreshTraction(),
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),
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),
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FilterChip(
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label: Text(
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_mileageFirst ? 'Mileage first' : 'Number order',
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),
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selected: _mileageFirst,
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onSelected: (v) {
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setState(() => _mileageFirst = v);
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_refreshTraction();
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},
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),
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TextButton.icon(
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onPressed: () => setState(
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() => _showAdvancedFilters = !_showAdvancedFilters,
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),
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icon: Icon(
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_showAdvancedFilters
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? Icons.expand_less
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: Icons.expand_more,
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),
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label: Text(
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_showAdvancedFilters
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? 'Hide filters'
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: 'More filters',
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),
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),
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ElevatedButton.icon(
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onPressed: _refreshTraction,
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icon: const Icon(Icons.search),
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label: const Text('Search'),
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),
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],
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),
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AnimatedCrossFade(
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crossFadeState: _showAdvancedFilters
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? CrossFadeState.showFirst
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: CrossFadeState.showSecond,
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duration: const Duration(milliseconds: 200),
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firstChild: Padding(
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padding: const EdgeInsets.only(top: 12.0),
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child: data.isEventFieldsLoading
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? const Center(
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child: Padding(
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padding: EdgeInsets.all(8.0),
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child: CircularProgressIndicator(
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strokeWidth: 2,
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),
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),
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)
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: extraFields.isEmpty
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? const Text('No extra filters available right now.')
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: Wrap(
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spacing: 12,
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runSpacing: 12,
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children: extraFields
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.map(
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(field) => _buildFilterInput(
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context,
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field,
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isMobile,
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),
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)
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.toList(),
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),
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),
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secondChild: const SizedBox.shrink(),
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),
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],
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),
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),
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),
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const SizedBox(height: 12),
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if (data.isTractionLoading && traction.isEmpty)
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const Center(
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child: Padding(
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padding: EdgeInsets.symmetric(vertical: 24.0),
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child: CircularProgressIndicator(),
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),
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)
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else if (traction.isEmpty)
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Card(
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child: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'No traction found',
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style: Theme.of(context).textTheme.titleMedium?.copyWith(
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fontWeight: FontWeight.w700,
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),
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),
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const SizedBox(height: 8),
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const Text('Try relaxing the filters or sync again.'),
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],
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),
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),
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)
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else
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Column(
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children: [
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...traction.map((loco) => _buildTractionCard(context, loco)),
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if (data.tractionHasMore || data.isTractionLoading)
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Padding(
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padding: const EdgeInsets.only(top: 8.0),
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child: OutlinedButton.icon(
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onPressed: data.isTractionLoading
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? null
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: () => _refreshTraction(append: true),
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icon: data.isTractionLoading
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? const SizedBox(
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height: 14,
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width: 14,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: const Icon(Icons.expand_more),
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label: Text(
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data.isTractionLoading ? 'Loading...' : 'Load more',
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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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if (widget.selectionMode) {
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return Scaffold(
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appBar: AppBar(
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leadingWidth: 140,
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leading: Padding(
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padding: const EdgeInsets.only(left: 8.0),
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child: TextButton.icon(
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onPressed: () => Navigator.of(context).pop(),
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icon: const Icon(Icons.arrow_back),
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label: const Text('Back'),
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style: TextButton.styleFrom(
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padding: const EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 10,
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),
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foregroundColor: Theme.of(context).colorScheme.onSurface,
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),
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),
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),
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title: null,
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),
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body: listView,
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);
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}
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return listView;
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}
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Widget _buildTractionCard(BuildContext context, LocoSummary loco) {
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final keyVal = '${loco.locoClass}-${loco.number}';
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final isSelected = _selectedKeys.contains(keyVal);
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final status = loco.status ?? 'Unknown';
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final operatorName = loco.operator ?? '';
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final domain = loco.domain ?? '';
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final hasMileageOrTrips = _hasMileageOrTrips(loco);
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final statusColors = _statusChipColors(context, status);
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return Card(
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child: Padding(
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padding: const EdgeInsets.all(12.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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Text(
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loco.number,
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style: Theme.of(context).textTheme.headlineSmall
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?.copyWith(fontWeight: FontWeight.w800),
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),
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if (hasMileageOrTrips)
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Padding(
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padding: const EdgeInsets.only(left: 6.0),
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child: Icon(
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Icons.check_circle,
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size: 18,
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color: Colors.green.shade600,
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),
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),
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],
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),
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Text(
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loco.locoClass,
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style: Theme.of(context).textTheme.labelMedium,
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),
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if ((loco.name ?? '').isNotEmpty)
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Padding(
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padding: const EdgeInsets.only(top: 2.0),
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child: Text(
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loco.name ?? '',
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style: Theme.of(context).textTheme.bodyMedium
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?.copyWith(fontStyle: FontStyle.italic),
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),
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),
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],
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),
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Chip(
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label: Text(status),
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backgroundColor: statusColors.$1,
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labelStyle: TextStyle(color: statusColors.$2),
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),
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],
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),
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const SizedBox(height: 8),
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Row(
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children: [
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TextButton.icon(
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onPressed: () => _showLocoInfo(loco),
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icon: const Icon(Icons.info_outline),
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label: const Text('Details'),
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),
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const SizedBox(width: 8),
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TextButton.icon(
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onPressed: () => _openTimeline(loco),
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icon: const Icon(Icons.timeline),
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label: const Text('Timeline'),
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),
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const Spacer(),
|
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if (widget.selectionMode)
|
|
TextButton.icon(
|
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onPressed: () {
|
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if (widget.onSelect != null) {
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widget.onSelect!(loco);
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}
|
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setState(() {
|
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if (isSelected) {
|
|
_selectedKeys.remove(keyVal);
|
|
} else {
|
|
_selectedKeys.add(keyVal);
|
|
}
|
|
});
|
|
},
|
|
icon: Icon(
|
|
isSelected
|
|
? Icons.remove_circle_outline
|
|
: Icons.add_circle_outline,
|
|
),
|
|
label: Text(isSelected ? 'Remove' : 'Add to entry'),
|
|
),
|
|
],
|
|
),
|
|
Wrap(
|
|
spacing: 8,
|
|
runSpacing: 4,
|
|
children: [
|
|
_statPill(
|
|
context,
|
|
label: 'Miles',
|
|
value: _formatNumber(loco.mileage),
|
|
),
|
|
_statPill(
|
|
context,
|
|
label: 'Trips',
|
|
value: (loco.trips ?? loco.journeys ?? 0).toString(),
|
|
),
|
|
if (operatorName.isNotEmpty)
|
|
_statPill(context, label: 'Operator', value: operatorName),
|
|
if (domain.isNotEmpty)
|
|
_statPill(context, label: 'Domain', value: domain),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
Widget _statPill(
|
|
BuildContext context, {
|
|
required String label,
|
|
required String value,
|
|
}) {
|
|
return Container(
|
|
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
|
|
decoration: BoxDecoration(
|
|
color: Theme.of(context).colorScheme.surfaceContainerHighest,
|
|
borderRadius: BorderRadius.circular(10),
|
|
),
|
|
child: Row(
|
|
mainAxisSize: MainAxisSize.min,
|
|
children: [
|
|
Text('$label: ', style: Theme.of(context).textTheme.labelSmall),
|
|
Text(
|
|
value,
|
|
style: Theme.of(
|
|
context,
|
|
).textTheme.labelSmall?.copyWith(fontWeight: FontWeight.w700),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
(Color, Color) _statusChipColors(BuildContext context, String status) {
|
|
final scheme = Theme.of(context).colorScheme;
|
|
final isDark = scheme.brightness == Brightness.dark;
|
|
Color blend(
|
|
Color base, {
|
|
double bgOpacity = 0.18,
|
|
double fgOpacity = 0.82,
|
|
}) {
|
|
final bg = Color.alphaBlend(
|
|
base.withOpacity(isDark ? bgOpacity + 0.07 : bgOpacity),
|
|
scheme.surface,
|
|
);
|
|
final fg = Color.alphaBlend(
|
|
base.withOpacity(isDark ? fgOpacity : fgOpacity * 0.8),
|
|
scheme.onSurface,
|
|
);
|
|
return Color.lerp(bg, fg, 0.0) ?? bg;
|
|
}
|
|
|
|
Color background;
|
|
Color foreground;
|
|
final key = status.toLowerCase();
|
|
|
|
if (key.contains('scrap')) {
|
|
background = blend(Colors.red);
|
|
foreground = Colors.red.shade200.withOpacity(isDark ? 0.85 : 0.9);
|
|
} else if (key.contains('active')) {
|
|
background = blend(scheme.primary);
|
|
foreground = scheme.primary.withOpacity(isDark ? 0.9 : 0.8);
|
|
} else if (key.contains('withdrawn')) {
|
|
background = blend(Colors.amber);
|
|
foreground = Colors.amber.shade800.withOpacity(isDark ? 0.9 : 0.8);
|
|
} else if (key.contains('stored') || key.contains('unknown')) {
|
|
background = blend(Colors.grey);
|
|
foreground = Colors.grey.shade700.withOpacity(isDark ? 0.85 : 0.75);
|
|
} else {
|
|
background = scheme.surfaceContainerHighest;
|
|
foreground = scheme.onSurface;
|
|
}
|
|
return (background, foreground);
|
|
}
|
|
|
|
void _openTimeline(LocoSummary loco) {
|
|
final label = '${loco.locoClass} ${loco.number}'.trim();
|
|
context.push(
|
|
'/traction/${loco.id}/timeline',
|
|
extra: {'label': label},
|
|
);
|
|
}
|
|
|
|
Future<void> _showLocoInfo(LocoSummary loco) async {
|
|
await showModalBottomSheet(
|
|
context: context,
|
|
isScrollControlled: true,
|
|
builder: (ctx) {
|
|
return DraggableScrollableSheet(
|
|
expand: false,
|
|
maxChildSize: 0.9,
|
|
initialChildSize: 0.65,
|
|
builder: (_, controller) {
|
|
return Padding(
|
|
padding: const EdgeInsets.all(16.0),
|
|
child: Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Row(
|
|
children: [
|
|
IconButton(
|
|
icon: const Icon(Icons.close),
|
|
onPressed: () => Navigator.of(ctx).pop(),
|
|
),
|
|
const SizedBox(width: 8),
|
|
Column(
|
|
crossAxisAlignment: CrossAxisAlignment.start,
|
|
children: [
|
|
Row(
|
|
children: [
|
|
Text(
|
|
loco.number,
|
|
style: Theme.of(context).textTheme.titleLarge
|
|
?.copyWith(fontWeight: FontWeight.w800),
|
|
),
|
|
if (_hasMileageOrTrips(loco))
|
|
Padding(
|
|
padding: const EdgeInsets.only(left: 6.0),
|
|
child: Icon(
|
|
Icons.check_circle,
|
|
size: 18,
|
|
color: Colors.green.shade600,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
Text(
|
|
loco.locoClass,
|
|
style: Theme.of(context).textTheme.labelMedium,
|
|
),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
if ((loco.name ?? '').isNotEmpty)
|
|
Padding(
|
|
padding: const EdgeInsets.only(left: 52.0, bottom: 12),
|
|
child: Text(
|
|
loco.name ?? '',
|
|
style: Theme.of(context).textTheme.bodyMedium,
|
|
),
|
|
),
|
|
const SizedBox(height: 4),
|
|
Expanded(
|
|
child: ListView(
|
|
controller: controller,
|
|
children: [
|
|
_detailRow('Status', loco.status ?? 'Unknown'),
|
|
_detailRow('Operator', loco.operator ?? ''),
|
|
_detailRow('Domain', loco.domain ?? ''),
|
|
_detailRow('Owner', loco.owner ?? ''),
|
|
_detailRow('Livery', loco.livery ?? ''),
|
|
_detailRow('Location', loco.location ?? ''),
|
|
_detailRow('Mileage', _formatNumber(loco.mileage ?? 0)),
|
|
_detailRow(
|
|
'Trips',
|
|
(loco.trips ?? loco.journeys ?? 0).toString(),
|
|
),
|
|
_detailRow('EVN', loco.evn ?? ''),
|
|
if (loco.notes != null && loco.notes!.isNotEmpty)
|
|
_detailRow('Notes', loco.notes!),
|
|
],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
},
|
|
);
|
|
},
|
|
);
|
|
}
|
|
|
|
Widget _detailRow(String label, String value) {
|
|
if (value.isEmpty) return const SizedBox.shrink();
|
|
return Padding(
|
|
padding: const EdgeInsets.symmetric(vertical: 6.0),
|
|
child: Row(
|
|
children: [
|
|
SizedBox(
|
|
width: 110,
|
|
child: Text(
|
|
label,
|
|
style: Theme.of(
|
|
context,
|
|
).textTheme.labelMedium?.copyWith(fontWeight: FontWeight.w600),
|
|
),
|
|
),
|
|
Expanded(
|
|
child: Text(value, style: Theme.of(context).textTheme.bodyMedium),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
String _formatNumber(double? value) {
|
|
if (value == null) return '0';
|
|
return value.toStringAsFixed(1);
|
|
}
|
|
|
|
bool _hasMileageOrTrips(LocoSummary loco) {
|
|
final mileage = loco.mileage ?? 0;
|
|
final trips = loco.trips ?? loco.journeys ?? 0;
|
|
return mileage > 0 || trips > 0;
|
|
}
|
|
|
|
Widget _buildFilterInput(
|
|
BuildContext context,
|
|
EventField field,
|
|
bool isMobile,
|
|
) {
|
|
final width = isMobile ? double.infinity : 220.0;
|
|
if (field.enumValues != null && field.enumValues!.isNotEmpty) {
|
|
final options = field.enumValues!
|
|
.map((e) => e.toString())
|
|
.toSet()
|
|
.toList();
|
|
final currentValue = _enumSelections[field.name];
|
|
final safeValue = options.contains(currentValue) ? currentValue : null;
|
|
return SizedBox(
|
|
width: width,
|
|
child: DropdownButtonFormField<String?>(
|
|
value: safeValue,
|
|
decoration: InputDecoration(
|
|
labelText: field.display,
|
|
border: const OutlineInputBorder(),
|
|
),
|
|
items: [
|
|
const DropdownMenuItem(value: null, child: Text('Any')),
|
|
...options.map(
|
|
(value) => DropdownMenuItem(value: value, child: Text(value)),
|
|
),
|
|
],
|
|
onChanged: (val) {
|
|
setState(() {
|
|
_enumSelections[field.name] = val;
|
|
});
|
|
_refreshTraction();
|
|
},
|
|
),
|
|
);
|
|
}
|
|
|
|
final controller =
|
|
_dynamicControllers[field.name] ?? TextEditingController();
|
|
_dynamicControllers[field.name] = controller;
|
|
TextInputType? inputType;
|
|
if (field.type != null) {
|
|
final type = field.type!.toLowerCase();
|
|
if (type.contains('int') ||
|
|
type.contains('num') ||
|
|
type.contains('double')) {
|
|
inputType = const TextInputType.numberWithOptions(decimal: true);
|
|
}
|
|
}
|
|
|
|
return SizedBox(
|
|
width: width,
|
|
child: TextField(
|
|
controller: controller,
|
|
keyboardType: inputType,
|
|
decoration: InputDecoration(
|
|
labelText: field.display,
|
|
border: const OutlineInputBorder(),
|
|
),
|
|
onSubmitted: (_) => _refreshTraction(),
|
|
),
|
|
);
|
|
}
|
|
}
|