Send/Receive support for reaction read syncs

ts/util/sendReadReceiptsFor.ts

@@ -0,0 +1,43 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { groupBy, map } from 'lodash';
+import { ConversationAttributesType } from '../model-types.d';
+import { getSendOptions } from './getSendOptions';
+import { handleMessageSend } from './handleMessageSend';
+import { isConversationAccepted } from './isConversationAccepted';
+
+export async function sendReadReceiptsFor(
+  conversationAttrs: ConversationAttributesType,
+  items: Array<unknown>
+): Promise<void> {
+  // Only send read receipts for accepted conversations
+  if (
+    window.storage.get('read-receipt-setting') &&
+    isConversationAccepted(conversationAttrs)
+  ) {
+    window.log.info(`Sending ${items.length} read receipts`);
+    const convoSendOptions = await getSendOptions(conversationAttrs);
+    const receiptsBySender = groupBy(items, 'senderId');
+
+    await Promise.all(
+      map(receiptsBySender, async (receipts, senderId) => {
+        const timestamps = map(receipts, 'timestamp');
+        const conversation = window.ConversationController.get(senderId);
+
+        if (conversation) {
+          await handleMessageSend(
+            window.textsecure.messaging.sendReadReceipts(
+              // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+              conversation.get('e164')!,
+              // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+              conversation.get('uuid')!,
+              timestamps,
+              convoSendOptions
+            )
+          );
+        }
+      })
+    );
+  }
+}