add user-group store

src/Umbraco.Web.UI.Client/src/core/stores/user/user-group.store.ts

@@ -0,0 +1,32 @@
+import { BehaviorSubject, map, Observable } from 'rxjs';
+import type { UserDetails, UserEntity, UserGroupDetails } from '../../models';
+import { UmbEntityStore } from '../entity.store';
+import { UmbDataStoreBase } from '../store';
+import { v4 as uuidv4 } from 'uuid';
+
+/**
+ * @export
+ * @class UmbUserGroupStore
+ * @extends {UmbDataStoreBase<UserGroupEntity>}
+ * @description - Data Store for Users
+ */
+export class UmbUserGroupStore extends UmbDataStoreBase<UserGroupDetails> {
+	private _entityStore: UmbEntityStore;
+
+	constructor(entityStore: UmbEntityStore) {
+		super();
+		this._entityStore = entityStore;
+	}
+
+	getAll(): Observable<Array<UserGroupDetails>> {
+		// TODO: use Fetcher API.
+		// TODO: only fetch if the data type is not in the store?
+		fetch(`/umbraco/backoffice/user-groups/list/items`)
+			.then((res) => res.json())
+			.then((data) => {
+				this.update(data.items);
+			});
+
+		return this.items;
+	}
+}