Create service interruptions view model

knip.ts

@@ -20,7 +20,12 @@ export default {
     // This is a shell built-in.
     "printf",
   ],
-  ignoreFiles: ["scripts/.pnpmfile.cjs"],
+  ignoreFiles: [
+    "scripts/.pnpmfile.cjs",
+    // Deliberately added prior to any component or business logic
+    // implementation
+    "src/state/ServiceInterruptionsViewModel.ts",
+  ],
   ignoreDependencies: [
     // Used in CSS
     "normalize.css",

src/state/ServiceInterruptionsViewModel.ts

@@ -0,0 +1,27 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+export type Service =
+  | { name: "encryption-keys" }
+  | { name: "reactions" }
+  | { name: "screen-sharing" }
+  | { name: "local-media" }
+  | {
+      name: "remote-media";
+      /**
+       * The number of users affected, for the purpose of pluralising the
+       * strings.
+       */
+      count: number;
+    };
+
+export interface ServiceInterruptionsViewModel {
+  /**
+   * A non-empty array of services which are temporarily unavailable.
+   */
+  unavailable: Service[];
+}