jingyun
74 lines
1.9 KiB
Dart
74 lines
1.9 KiB
Dart
import 'package:hooks_riverpod/hooks_riverpod.dart';
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import '../../../common/domain/metal_type.dart';
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import '../data/market_models.dart';
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import '../data/mock_market_repository.dart';
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final marketControllerProvider =
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StateNotifierProvider<MarketController, MarketState>((ref) {
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final repository = ref.watch(mockMarketRepositoryProvider);
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return MarketController(repository);
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});
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class MarketState {
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const MarketState({
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required this.selectedMetal,
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required this.period,
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required this.quote,
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required this.points,
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required this.quotes,
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});
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final MetalType selectedMetal;
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final MarketPeriod period;
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final MetalQuote quote;
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final List<MarketPoint> points;
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final List<MetalQuote> quotes;
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MarketState copyWith({
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MetalType? selectedMetal,
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MarketPeriod? period,
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MetalQuote? quote,
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List<MarketPoint>? points,
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List<MetalQuote>? quotes,
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}) {
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return MarketState(
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selectedMetal: selectedMetal ?? this.selectedMetal,
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period: period ?? this.period,
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quote: quote ?? this.quote,
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points: points ?? this.points,
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quotes: quotes ?? this.quotes,
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);
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}
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}
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class MarketController extends StateNotifier<MarketState> {
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MarketController(this._repository)
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: super(
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MarketState(
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selectedMetal: MetalType.gold,
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period: MarketPeriod.h24,
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quote: _repository.quoteFor(MetalType.gold),
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points: _repository.chartFor(MetalType.gold, MarketPeriod.h24),
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quotes: _repository.getQuotes(),
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),
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);
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final MockMarketRepository _repository;
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void selectMetal(MetalType metal) {
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state = state.copyWith(
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selectedMetal: metal,
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quote: _repository.quoteFor(metal),
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points: _repository.chartFor(metal, state.period),
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);
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}
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void selectPeriod(MarketPeriod period) {
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state = state.copyWith(
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period: period,
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points: _repository.chartFor(state.selectedMetal, period),
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);
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}
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}
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