70 lines
2.0 KiB
Dart
70 lines
2.0 KiB
Dart
import 'dart:async';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../domain/entities/share_account.dart';
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import '../../domain/entities/global_state.dart';
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import '../../domain/usecases/mining/get_share_account.dart';
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import '../../domain/usecases/mining/get_global_state.dart';
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import '../../core/di/injection.dart';
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// Use Cases Providers
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final getShareAccountUseCaseProvider = Provider<GetShareAccount>((ref) {
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return getIt<GetShareAccount>();
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});
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final getGlobalStateUseCaseProvider = Provider<GetGlobalState>((ref) {
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return getIt<GetGlobalState>();
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});
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// State Providers - 使用 keepAlive 缓存数据，避免重复请求
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final shareAccountProvider = FutureProvider.family<ShareAccount?, String>(
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(ref, accountSequence) async {
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// 空字符串不请求
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if (accountSequence.isEmpty) return null;
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final useCase = ref.watch(getShareAccountUseCaseProvider);
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final result = await useCase(accountSequence);
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// 保持 provider 活跃，避免每次 rebuild 都重新请求
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ref.keepAlive();
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// 5 分钟后自动失效，允许刷新
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final timer = Timer(const Duration(minutes: 5), () {
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ref.invalidateSelf();
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});
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ref.onDispose(() => timer.cancel());
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return result.fold(
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(failure) => throw Exception(failure.message),
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(account) => account,
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);
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},
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);
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final globalStateProvider = FutureProvider<GlobalState?>((ref) async {
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final useCase = ref.watch(getGlobalStateUseCaseProvider);
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final result = await useCase();
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// 保持 provider 活跃
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ref.keepAlive();
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// 5 分钟后自动失效
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final timer = Timer(const Duration(minutes: 5), () {
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ref.invalidateSelf();
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});
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ref.onDispose(() => timer.cancel());
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return result.fold(
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(failure) => throw Exception(failure.message),
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(state) => state,
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);
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});
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final currentPriceProvider = Provider<String>((ref) {
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final globalState = ref.watch(globalStateProvider);
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return globalState.when(
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data: (state) => state?.currentPrice ?? '0',
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loading: () => '0',
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error: (_, __) => '0',
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);
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});
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