Sync my stories with primary device

ts/util/saveAttachment.ts

@@ -0,0 +1,32 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { AttachmentType } from '../types/Attachment';
+import * as Attachment from '../types/Attachment';
+import { showToast } from './showToast';
+import { ToastFileSaved } from '../components/ToastFileSaved';
+
+export async function saveAttachment(
+  attachment: AttachmentType,
+  timestamp = Date.now(),
+  index = 0
+): Promise<void> {
+  const { openFileInFolder, readAttachmentData, saveAttachmentToDisk } =
+    window.Signal.Migrations;
+
+  const fullPath = await Attachment.save({
+    attachment,
+    index: index + 1,
+    readAttachmentData,
+    saveAttachmentToDisk,
+    timestamp,
+  });
+
+  if (fullPath) {
+    showToast(ToastFileSaved, {
+      onOpenFile: () => {
+        openFileInFolder(fullPath);
+      },
+    });
+  }
+}