feat(app): экраны импорта отчётов, целей, доходов, ребалансировки, налогов и бенчмарков

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.
2026-09-19 10:44:38 +03:00
parent 15f5812ea4
commit b69bb4a0c9
52 changed files with 7404 additions and 13 deletions
@@ -0,0 +1,114 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../../core/widgets/async_value_view.dart';
+import '../../core/widgets/empty_state.dart';
+import '../portfolio/labels.dart' show dimensionLabels;
+import 'data/rebalance_api.dart';
+import 'plan_tab.dart';
+import 'providers.dart';
+import 'targets_tab.dart';
+
+/// Ребалансировка: the target weights on one tab, the resulting recommendations on the
+/// other. Both are per portfolio and per dimension, so the pickers live in the app bar and
+/// drive both tabs at once.
+class RebalancePage extends ConsumerWidget {
+  const RebalancePage({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final portfolios = ref.watch(portfoliosProvider);
+
+    return DefaultTabController(
+      length: 2,
+      child: Scaffold(
+        appBar: AppBar(
+          title: const Text('Ребалансировка'),
+          actions: [
+            const _PortfolioSelector(),
+            const _DimensionSelector(),
+            IconButton(
+              tooltip: 'Обновить',
+              icon: const Icon(Icons.refresh),
+              onPressed: () => invalidateRebalanceProviders(ref),
+            ),
+          ],
+          bottom: const TabBar(
+            tabs: [Tab(text: 'Целевые веса'), Tab(text: 'Рекомендации')],
+          ),
+        ),
+        body: AsyncValueView(
+          value: portfolios,
+          onRetry: () => ref.invalidate(portfoliosProvider),
+          data: (list) {
+            if (list.isEmpty) {
+              return const EmptyState(
+                icon: Icons.pie_chart_outline,
+                message: 'Портфелей пока нет.\n'
+                    'Ребалансировка считается по портфелю: заведите его в настройках счетов.',
+              );
+            }
+            final selected = ref.watch(selectedPortfolioProvider);
+            if (selected == null || !list.any((p) => p.id == selected)) {
+              // pick the first portfolio once, after the list is known
+              WidgetsBinding.instance.addPostFrameCallback((_) {
+                ref.read(selectedPortfolioProvider.notifier).state = list.first.id;
+              });
+              return const Center(child: CircularProgressIndicator());
+            }
+            return const TabBarView(children: [TargetsTab(), RebalancePlanTab()]);
+          },
+        ),
+      ),
+    );
+  }
+}
+
+class _PortfolioSelector extends ConsumerWidget {
+  const _PortfolioSelector();
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final portfolios = ref.watch(portfoliosProvider).valueOrNull ?? const <PortfolioRef>[];
+    final selected = ref.watch(selectedPortfolioProvider);
+    if (portfolios.length < 2 || selected == null) return const SizedBox.shrink();
+    return DropdownButtonHideUnderline(
+      child: DropdownButton<int>(
+        value: portfolios.any((p) => p.id == selected) ? selected : portfolios.first.id,
+        borderRadius: BorderRadius.circular(8),
+        items: [
+          for (final p in portfolios)
+            DropdownMenuItem(value: p.id, child: Text(p.name, overflow: TextOverflow.ellipsis)),
+        ],
+        onChanged: (v) {
+          if (v != null) ref.read(selectedPortfolioProvider.notifier).state = v;
+        },
+      ),
+    );
+  }
+}
+
+class _DimensionSelector extends ConsumerWidget {
+  const _DimensionSelector();
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final current = ref.watch(targetDimensionProvider);
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 8),
+      child: DropdownButtonHideUnderline(
+        child: DropdownButton<String>(
+          value: current,
+          borderRadius: BorderRadius.circular(8),
+          items: [
+            for (final d in targetDimensions)
+              DropdownMenuItem(value: d, child: Text(dimensionLabels[d] ?? d)),
+          ],
+          onChanged: (v) {
+            if (v != null) ref.read(targetDimensionProvider.notifier).state = v;
+          },
+        ),
+      ),
+    );
+  }
+}