api and storage restructure

lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventCache.dart

@@ -1,30 +1,19 @@
-import 'dart:convert';
-
 import '../../../requestCache.dart';
 import 'getCustomTimetableEvent.dart';
 import 'getCustomTimetableEventParams.dart';
 import 'getCustomTimetableEventResponse.dart';
 
-class GetCustomTimetableEventCache extends RequestCache<GetCustomTimetableEventResponse> {
-  GetCustomTimetableEventParams params;
-
+class GetCustomTimetableEventCache extends SimpleCache<GetCustomTimetableEventResponse> {
   GetCustomTimetableEventCache(
-    this.params, {
-    void Function(GetCustomTimetableEventResponse)? onUpdate,
-    void Function(Exception)? onError,
-    bool? renew,
+    GetCustomTimetableEventParams params, {
+    super.onUpdate,
+    super.onError,
+    super.renew,
   }) : super(
-          RequestCache.cacheMinute,
-          onUpdate,
-          onError: onError ?? RequestCache.ignore,
-          renew: renew,
+          cacheTime: RequestCache.cacheMinute,
+          loader: () => GetCustomTimetableEvent(params).run(),
+          fromJson: GetCustomTimetableEventResponse.fromJson,
         ) {
     start('customTimetableEvents');
   }
-
-  @override
-  Future<GetCustomTimetableEventResponse> onLoad() => GetCustomTimetableEvent(params).run();
-
-  @override
-  GetCustomTimetableEventResponse onLocalData(String json) => GetCustomTimetableEventResponse.fromJson(jsonDecode(json));
 }