[Application] Added initial banner history item impl.

lib/application/banner_history_item/banner_history_item_bloc.dart

@@ -0,0 +1,31 @@
+import 'package:bloc/bloc.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:shiori/domain/models/models.dart';
+import 'package:shiori/domain/services/genshin_service.dart';
+import 'package:shiori/domain/services/telemetry_service.dart';
+
+part 'banner_history_item_bloc.freezed.dart';
+part 'banner_history_item_event.dart';
+part 'banner_history_item_state.dart';
+
+class BannerHistoryItemBloc extends Bloc<BannerHistoryItemEvent, BannerHistoryItemState> {
+  final GenshinService _genshinService;
+  final TelemetryService _telemetryService;
+
+  BannerHistoryItemBloc(this._genshinService, this._telemetryService) : super(const BannerHistoryItemState.loading());
+
+  @override
+  Stream<BannerHistoryItemState> mapEventToState(BannerHistoryItemEvent event) async* {
+    final s = await event.map(
+      init: (e) => _init(e.version),
+    );
+
+    yield s;
+  }
+
+  Future<BannerHistoryItemState> _init(double version) async {
+    await _telemetryService.trackBannerHistoryItemOpened(version);
+    final banners = _genshinService.getBanners(version);
+    return BannerHistoryItemState.loadedState(version: version, items: banners);
+  }
+}

lib/application/banner_history_item/banner_history_item_event.dart

@@ -0,0 +1,8 @@
+part of 'banner_history_item_bloc.dart';
+
+@freezed
+class BannerHistoryItemEvent with _$BannerHistoryItemEvent {
+  const factory BannerHistoryItemEvent.init({
+    required double version,
+  }) = _Init;
+}

lib/application/banner_history_item/banner_history_item_state.dart

@@ -0,0 +1,11 @@
+part of 'banner_history_item_bloc.dart';
+
+@freezed
+class BannerHistoryItemState with _$BannerHistoryItemState {
+  const factory BannerHistoryItemState.loading() = _LoadingState;
+
+  const factory BannerHistoryItemState.loadedState({
+    required double version,
+    required List<BannerHistoryPeriodModel> items,
+  }) = _LoadedState;
+}

lib/application/bloc.dart

@@ -1,6 +1,7 @@
 export 'artifact/artifact_bloc.dart';
 export 'artifacts/artifacts_bloc.dart';
 export 'banner_history/banner_history_bloc.dart';
+export 'banner_history_item/banner_history_item_bloc.dart';
 export 'calculator_asc_materials/material_item/calculator_asc_materials_item_bloc.dart';
 export 'calculator_asc_materials/material_item_quantity/calculator_asc_materials_item_update_quantity_bloc.dart';
 export 'calculator_asc_materials/materials/calculator_asc_materials_bloc.dart';