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 +1,99 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import 'data/tax_api.dart';
+import 'lots_tab.dart';
+import 'providers.dart';
+import 'summary_tab.dart';
+
+/// Налоги: the year summary and the open-lot list with ЛДВ dates.
+///
+/// The word «оценка» is on the screen itself, not in a tooltip: the tax agent is the
+/// broker, and these numbers exist so that the broker's statement can be checked against
+/// something — not to replace it.
+class TaxPage extends ConsumerWidget {
+  const TaxPage({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return DefaultTabController(
+      length: 2,
+      child: Scaffold(
+        appBar: AppBar(
+          title: const Text('Налоги (оценка)'),
+          actions: [
+            const _YearSelector(),
+            IconButton(
+              tooltip: 'Обновить',
+              icon: const Icon(Icons.refresh),
+              onPressed: () => invalidateTaxProviders(ref),
+            ),
+          ],
+          bottom: const TabBar(
+            tabs: [Tab(text: 'Сводка за год'), Tab(text: 'Лоты и ЛДВ')],
+          ),
+        ),
+        body: const Column(
+          children: [
+            EstimateBanner(),
+            Expanded(child: TabBarView(children: [TaxSummaryTab(), TaxLotsTab()])),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+/// The disclaimer, always visible above both tabs.
+class EstimateBanner extends ConsumerWidget {
+  const EstimateBanner({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final summary = ref.watch(taxSummaryProvider).valueOrNull;
+    final scheme = Theme.of(context).colorScheme;
+    final text = summary?.disclaimer ?? TaxSummary.defaultDisclaimer;
+
+    return Material(
+      color: scheme.tertiaryContainer,
+      child: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
+        child: Row(
+          children: [
+            const Icon(Icons.info_outline, size: 18),
+            const SizedBox(width: 8),
+            Expanded(
+              child: Text(
+                text,
+                style: Theme.of(context).textTheme.bodySmall,
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class _YearSelector extends ConsumerWidget {
+  const _YearSelector();
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final year = ref.watch(taxYearProvider);
+    final now = DateTime.now().year;
+    return DropdownButtonHideUnderline(
+      child: DropdownButton<int>(
+        value: year,
+        borderRadius: BorderRadius.circular(8),
+        items: [
+          for (var y = now; y >= now - 6; y--)
+            DropdownMenuItem(value: y, child: Text('$y')),
+        ],
+        onChanged: (v) {
+          if (v != null) ref.read(taxYearProvider.notifier).state = v;
+        },
+      ),
+    );
+  }
+}