Implemented inbox (still WIP)

lib/core/bloc/paperless_statistics_cubit.dart

@@ -0,0 +1,62 @@
+import 'dart:math';
+
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:injectable/injectable.dart';
+import 'package:paperless_mobile/core/model/paperless_statistics.dart';
+import 'package:paperless_mobile/core/model/paperless_statistics_state.dart';
+import 'package:paperless_mobile/core/service/paperless_statistics_service.dart';
+
+@singleton
+class PaperlessStatisticsCubit extends Cubit<PaperlessStatisticsState> {
+  final PaperlessStatisticsService statisticsService;
+
+  PaperlessStatisticsCubit(this.statisticsService)
+      : super(PaperlessStatisticsState(isLoaded: false));
+
+  Future<void> updateStatistics() async {
+    final stats = await statisticsService.getStatistics();
+    emit(PaperlessStatisticsState(isLoaded: true, statistics: stats));
+  }
+
+  void decrementInboxCount() {
+    if (state.isLoaded) {
+      emit(
+        PaperlessStatisticsState(
+          isLoaded: true,
+          statistics: PaperlessStatistics(
+            documentsInInbox: max(0, state.statistics!.documentsInInbox - 1),
+            documentsTotal: state.statistics!.documentsTotal,
+          ),
+        ),
+      );
+    }
+  }
+
+  void incrementInboxCount() {
+    if (state.isLoaded) {
+      emit(
+        PaperlessStatisticsState(
+          isLoaded: true,
+          statistics: PaperlessStatistics(
+            documentsInInbox: state.statistics!.documentsInInbox + 1,
+            documentsTotal: state.statistics!.documentsTotal,
+          ),
+        ),
+      );
+    }
+  }
+
+  void resetInboxCount() {
+    if (state.isLoaded) {
+      emit(
+        PaperlessStatisticsState(
+          isLoaded: true,
+          statistics: PaperlessStatistics(
+            documentsInInbox: 0,
+            documentsTotal: state.statistics!.documentsTotal,
+          ),
+        ),
+      );
+    }
+  }
+}