Send viewed receipt when you start listening to an audio message

ts/util/sendViewedReceipt.ts

@@ -0,0 +1,55 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { ConversationAttributesType } from '../model-types.d';
+import { getSendOptions } from './getSendOptions';
+import { handleMessageSend } from './handleMessageSend';
+import { isConversationAccepted } from './isConversationAccepted';
+
+export async function sendViewedReceipt({
+  messageId,
+  senderE164,
+  senderUuid,
+  timestamp,
+}: Readonly<{
+  messageId: string;
+  senderE164?: string;
+  senderUuid?: string;
+  timestamp: number;
+}>): Promise<void> {
+  if (!window.storage.get('read-receipt-setting')) {
+    return;
+  }
+
+  const conversationId = window.ConversationController.ensureContactIds({
+    e164: senderE164,
+    uuid: senderUuid,
+  });
+  if (!conversationId) {
+    throw new Error(
+      'sendViewedReceipt: no conversation found with that E164/UUID'
+    );
+  }
+
+  const conversation = window.ConversationController.get(conversationId);
+  if (!conversation) {
+    throw new Error(
+      'sendViewedReceipt: no conversation found with that conversation ID, even though we found the ID with E164/UUID?'
+    );
+  }
+
+  const conversationAttrs: ConversationAttributesType = conversation.attributes;
+  if (!isConversationAccepted(conversationAttrs)) {
+    return;
+  }
+
+  await handleMessageSend(
+    window.textsecure.messaging.sendViewedReceipts({
+      senderE164,
+      senderUuid,
+      timestamps: [timestamp],
+      options: await getSendOptions(conversationAttrs),
+    }),
+    { messageIds: [messageId], sendType: 'viewedReceipt' }
+  );
+}