add user group collection repository

src/Umbraco.Web.UI.Client/src/packages/users/user-groups/repository/collection/user-group-collection.repository.ts

@@ -0,0 +1,35 @@
+import { UmbUserGroupCollectionFilterModel } from '../../types.js';
+import { UmbUserGroupCollectionServerDataSource } from '../sources/user-group-collection.server.data.js';
+import { UMB_USER_GROUP_STORE_CONTEXT_TOKEN, UmbUserGroupStore } from '../user-group.store.js';
+import { UserGroupResponseModel } from '@umbraco-cms/backoffice/backend-api';
+import { UmbCollectionDataSource, UmbCollectionRepository } from '@umbraco-cms/backoffice/repository';
+import { UmbContextConsumerController } from '@umbraco-cms/backoffice/context-api';
+import type { UmbControllerHostElement } from '@umbraco-cms/backoffice/controller-api';
+
+// TODO: implement
+export class UmbUserGroupRepository implements UmbCollectionRepository {
+	#host: UmbControllerHostElement;
+	#init;
+
+	#detailStore?: UmbUserGroupStore;
+	#collectionSource: UmbCollectionDataSource<UserGroupResponseModel>;
+
+	constructor(host: UmbControllerHostElement) {
+		this.#host = host;
+		this.#collectionSource = new UmbUserGroupCollectionServerDataSource(this.#host);
+
+		this.#init = Promise.all([
+			new UmbContextConsumerController(this.#host, UMB_USER_GROUP_STORE_CONTEXT_TOKEN, (instance) => {
+				this.#detailStore = instance;
+			}).asPromise(),
+		]);
+	}
+
+	async requestCollection(filter: UmbUserGroupCollectionFilterModel = { skip: 0, take: 100 }) {
+		await this.#init;
+
+		const { data, error } = await this.#collectionSource.filterCollection(filter);
+
+		return { data, error, asObservable: () => this.#detailStore!.all() };
+	}
+}