Link-and-sync

ts/util/isLinkAndSyncEnabled.ts

@@ -0,0 +1,16 @@
+// Copyright 2024 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { isTestOrMockEnvironment } from '../environment';
+import { isStagingServer } from './isStagingServer';
+import { isAlpha } from './version';
+import { everDone as wasRegistrationEverDone } from './registration';
+
+export function isLinkAndSyncEnabled(version: string): boolean {
+  // Cannot overwrite existing message history
+  if (wasRegistrationEverDone()) {
+    return false;
+  }
+
+  return isStagingServer() || isTestOrMockEnvironment() || isAlpha(version);
+}