Typings cleanup and improvements

frontend/src/App/State/AppSectionState.ts

@@ -0,0 +1,48 @@
+import SortDirection from 'Helpers/Props/SortDirection';
+
+export interface Error {
+  responseJSON: {
+    message: string;
+  };
+}
+
+export interface AppSectionDeleteState {
+  isDeleting: boolean;
+  deleteError: Error;
+}
+
+export interface AppSectionSaveState {
+  isSaving: boolean;
+  saveError: Error;
+}
+
+export interface PagedAppSectionState {
+  pageSize: number;
+}
+
+export interface AppSectionSchemaState<T> {
+  isSchemaFetching: boolean;
+  isSchemaPopulated: boolean;
+  schemaError: Error;
+  schema: {
+    items: T[];
+  };
+}
+
+export interface AppSectionItemState<T> {
+  isFetching: boolean;
+  isPopulated: boolean;
+  error: Error;
+  item: T;
+}
+
+interface AppSectionState<T> {
+  isFetching: boolean;
+  isPopulated: boolean;
+  error: Error;
+  items: T[];
+  sortKey: string;
+  sortDirection: SortDirection;
+}
+
+export default AppSectionState;