added cache for suppliers

lib/blocs/caches/supplierlist/functions/cache_getsupplierlist.dart

@@ -0,0 +1,14 @@
+import 'package:flutter/widgets.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:pharmacy_mobile/blocs/caches/supplierlist/supplierlist_cache_bloc.dart';
+import 'package:pharmacy_mobile/blocs/caches/supplierlist/supplierlist_cache_event.dart';
+
+Future<List> cacheGetSupplierList(BuildContext context) async {
+  try {
+    final supplierListCache = context.read<SupplierListBloc>();
+    supplierListCache.add(SupplierListCacheGet());
+    return supplierListCache.state.value;
+  } catch (e) {
+    return [];
+  }
+}

lib/blocs/caches/supplierlist/functions/cache_setsupplierlist.dart

@@ -0,0 +1,14 @@
+import 'package:flutter/widgets.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:pharmacy_mobile/blocs/caches/supplierlist/supplierlist_cache_bloc.dart';
+import 'package:pharmacy_mobile/blocs/caches/supplierlist/supplierlist_cache_event.dart';
+
+Future<bool> cacheSetSupplierList(BuildContext context, List value) async {
+  try {
+    final supplierListCache = context.read<SupplierListBloc>();
+    supplierListCache.add(SupplierListCacheSet(value));
+    return true;
+  } catch (e) {
+    return false;
+  }
+}

lib/blocs/caches/supplierlist/supplierlist_cache_bloc.dart

@@ -0,0 +1,14 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:pharmacy_mobile/blocs/caches/supplierlist/supplierlist_cache_event.dart';
+import 'package:pharmacy_mobile/blocs/caches/supplierlist/supplierlist_cache_state.dart';
+
+class SupplierListBloc extends Bloc<SupplierListCacheEvent, SupplierListCacheState> {
+  SupplierListBloc() : super(SupplierListCacheState([])) {
+    on<SupplierListCacheSet>((event, emit) {
+      emit(SupplierListCacheState(event.value));
+    });
+    on<SupplierListCacheGet>((event, emit) {
+      emit(state);
+    });
+  }
+}

lib/blocs/caches/supplierlist/supplierlist_cache_event.dart

@@ -0,0 +1,8 @@
+abstract class SupplierListCacheEvent {}
+
+class SupplierListCacheSet extends SupplierListCacheEvent {
+  final List value;
+  SupplierListCacheSet(this.value);
+}
+
+class SupplierListCacheGet extends SupplierListCacheEvent {}

lib/blocs/caches/supplierlist/supplierlist_cache_state.dart

@@ -0,0 +1,5 @@
+class SupplierListCacheState {
+  final List value;
+
+  SupplierListCacheState(this.value);
+}