Dmitry
b69bb4a0c9
Импорт (/imports, /instruments/pending) и фаза 4 (/goals, /income, /rebalance, /tax, аналитика-хаб с benchmarks_card) — по docs/ai/import-contract.md и docs/ai/phase4-contract.md. file_picker для загрузки отчёта.
115 lines
4.1 KiB
Dart
115 lines
4.1 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../core/widgets/async_value_view.dart';
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import '../../core/widgets/empty_state.dart';
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import '../portfolio/labels.dart' show dimensionLabels;
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import 'data/rebalance_api.dart';
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import 'plan_tab.dart';
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import 'providers.dart';
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import 'targets_tab.dart';
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/// Ребалансировка: the target weights on one tab, the resulting recommendations on the
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/// other. Both are per portfolio and per dimension, so the pickers live in the app bar and
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/// drive both tabs at once.
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class RebalancePage extends ConsumerWidget {
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const RebalancePage({super.key});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final portfolios = ref.watch(portfoliosProvider);
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return DefaultTabController(
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length: 2,
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child: Scaffold(
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appBar: AppBar(
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title: const Text('Ребалансировка'),
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actions: [
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const _PortfolioSelector(),
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const _DimensionSelector(),
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IconButton(
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tooltip: 'Обновить',
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icon: const Icon(Icons.refresh),
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onPressed: () => invalidateRebalanceProviders(ref),
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),
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],
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bottom: const TabBar(
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tabs: [Tab(text: 'Целевые веса'), Tab(text: 'Рекомендации')],
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),
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),
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body: AsyncValueView(
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value: portfolios,
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onRetry: () => ref.invalidate(portfoliosProvider),
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data: (list) {
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if (list.isEmpty) {
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return const EmptyState(
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icon: Icons.pie_chart_outline,
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message: 'Портфелей пока нет.\n'
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'Ребалансировка считается по портфелю: заведите его в настройках счетов.',
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);
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}
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final selected = ref.watch(selectedPortfolioProvider);
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if (selected == null || !list.any((p) => p.id == selected)) {
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// pick the first portfolio once, after the list is known
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WidgetsBinding.instance.addPostFrameCallback((_) {
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ref.read(selectedPortfolioProvider.notifier).state = list.first.id;
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});
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return const Center(child: CircularProgressIndicator());
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}
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return const TabBarView(children: [TargetsTab(), RebalancePlanTab()]);
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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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class _PortfolioSelector extends ConsumerWidget {
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const _PortfolioSelector();
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final portfolios = ref.watch(portfoliosProvider).valueOrNull ?? const <PortfolioRef>[];
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final selected = ref.watch(selectedPortfolioProvider);
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if (portfolios.length < 2 || selected == null) return const SizedBox.shrink();
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return DropdownButtonHideUnderline(
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child: DropdownButton<int>(
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value: portfolios.any((p) => p.id == selected) ? selected : portfolios.first.id,
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borderRadius: BorderRadius.circular(8),
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items: [
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for (final p in portfolios)
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DropdownMenuItem(value: p.id, child: Text(p.name, overflow: TextOverflow.ellipsis)),
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],
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onChanged: (v) {
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if (v != null) ref.read(selectedPortfolioProvider.notifier).state = v;
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},
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),
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);
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}
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}
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class _DimensionSelector extends ConsumerWidget {
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const _DimensionSelector();
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final current = ref.watch(targetDimensionProvider);
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return Padding(
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padding: const EdgeInsets.symmetric(horizontal: 8),
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child: DropdownButtonHideUnderline(
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child: DropdownButton<String>(
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value: current,
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borderRadius: BorderRadius.circular(8),
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items: [
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for (final d in targetDimensions)
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DropdownMenuItem(value: d, child: Text(dimensionLabels[d] ?? d)),
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],
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onChanged: (v) {
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if (v != null) ref.read(targetDimensionProvider.notifier).state = v;
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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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