Dmitry
322c60a359
Доходы, ребалансировка, налоги, импорт, цели, здоровье данных, правила, транзакции, категории, cashflow, pending: новые виджеты и токены темы, dart format. Тесты подстроены под новые модели.
73 lines
2.8 KiB
Dart
73 lines
2.8 KiB
Dart
import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../core/api/api_client.dart';
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import '../../core/cache/cached.dart';
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import '../portfolio/providers.dart' show scopeProvider, scopesProvider;
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import 'data/rebalance_api.dart';
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final rebalanceApiProvider = Provider<RebalanceApi>(
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(ref) => RebalanceApi(ref.watch(apiProvider).dio),
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);
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/// A portfolio the user can rebalance, derived from the scope list the analytics API
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/// already publishes (`portfolio:<id>`): there is no separate portfolios endpoint, and
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/// inventing one would be a contract of its own.
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class PortfolioRef {
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const PortfolioRef(this.id, this.name);
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final int id;
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final String name;
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}
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final portfoliosProvider = FutureProvider.autoDispose<List<PortfolioRef>>((
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ref,
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) async {
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final scopes = await ref.watch(scopesProvider.future);
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return [
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for (final s in scopes)
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if (s.scope.startsWith('portfolio:'))
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PortfolioRef(int.parse(s.scope.substring('portfolio:'.length)), s.name),
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];
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});
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/// The portfolio the rebalance screen is working on. Null until the list loads; seeded from
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/// the app-wide scope when that scope already names a portfolio.
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final selectedPortfolioProvider = StateProvider<int?>((ref) {
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final scope = ref.watch(scopeProvider);
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if (!scope.startsWith('portfolio:')) return null;
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return int.tryParse(scope.substring('portfolio:'.length));
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});
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final targetDimensionProvider = StateProvider<String>((ref) => 'asset_class');
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/// What-if cash for the recommendations, as a decimal string. Null = use the real balance.
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final whatIfCashProvider = StateProvider<String?>((ref) => null);
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/// See `docs/ai/offline-cache.md`. No portfolio selected yet is a live, empty answer — not a
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/// stale one — so it is wrapped with `fetchedAt: null` rather than left unwrapped.
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final targetsProvider = FutureProvider.autoDispose<Cached<TargetSet>>((
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ref,
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) async {
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final id = ref.watch(selectedPortfolioProvider);
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final dimension = ref.watch(targetDimensionProvider);
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if (id == null) return Cached(TargetSet(dimension: dimension));
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return ref.watch(rebalanceApiProvider).getTargets(id, dimension: dimension);
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});
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final rebalancePlanProvider =
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FutureProvider.autoDispose<Cached<RebalancePlan?>>((ref) async {
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final id = ref.watch(selectedPortfolioProvider);
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final dimension = ref.watch(targetDimensionProvider);
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final cash = ref.watch(whatIfCashProvider);
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if (id == null) return const Cached(null);
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return ref
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.watch(rebalanceApiProvider)
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.plan(id, dimension: dimension, cashAvailable: cash);
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});
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/// After a successful PUT the numbers are recomputed on the server, so both sides of the
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/// screen are refetched rather than patched in place.
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void invalidateRebalanceProviders(WidgetRef ref) {
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ref.invalidate(targetsProvider);
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ref.invalidate(rebalancePlanProvider);
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}
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