feat: setupSpecialGroups in bootstrap

Signed-off-by: Philip Molares <philip.molares@udo.edu>

src/utils/createSpecialGroups.ts

@@ -0,0 +1,34 @@
+/*
+ * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { NestExpressApplication } from '@nestjs/platform-express';
+
+import { AlreadyInDBError } from '../errors/errors';
+import { GroupsService } from '../groups/groups.service';
+import { SpecialGroup } from '../groups/groups.special';
+
+export async function setupSpecialGroups(
+  app: NestExpressApplication,
+): Promise<void> {
+  const groupService = app.get<GroupsService>(GroupsService);
+  try {
+    await groupService.createGroup(
+      SpecialGroup.EVERYONE,
+      SpecialGroup.EVERYONE,
+      true,
+    );
+    await groupService.createGroup(
+      SpecialGroup.LOGGED_IN,
+      SpecialGroup.LOGGED_IN,
+      true,
+    );
+  } catch (e) {
+    if (e instanceof AlreadyInDBError) {
+      // It's no problem if the special groups already exist
+      return;
+    }
+    throw e;
+  }
+}