fix: Prevent app's bridges from overriding lastMsg prop on rooms col

.changeset/dirty-crabs-deliver.md

@@ -0,0 +1,5 @@
+---
+"@rocket.chat/meteor": patch
+---
+
+fix: Prevent app's bridges from overriding the lastMsg prop which further was affecting Omni-Visitor abandonment feature for app

apps/meteor/app/apps/server/converters/rooms.js

@@ -38,11 +38,16 @@ export class AppRoomsConverter {
  let v;
  if (room.visitor) {
  const visitor = await LivechatVisitors.findOneById(room.visitor.id);
+
+ const lastMessageTs = room?.visitor?.lastMessageTs;
+ const phone = room?.visitor?.channelPhone;
  v = {
  _id: visitor._id,
  username: visitor.username,
  token: visitor.token,
  status: visitor.status || 'online',
+ ...(lastMessageTs && { lastMessageTs }),
+ ...(phone && { phone }),
  };
  }
 
@@ -172,9 +177,21 @@ export class AppRoomsConverter {
  return undefined;
  }
 
+ const { lastMessageTs, phone } = v;
+
  delete room.v;
 
- return this.orch.getConverters().get('visitors').convertById(v._id);
+ return {
+ ...(await this.orch.getConverters().get('visitors').convertById(v._id)),
+ // Note: room.v is not just visitor, it also contains channel related visitor data
+ // so we need to pass this data to the converter
+ // So suppose you have a contact whom we're contacting using SMS via 2 phone no's,
+ // let's call X and Y. Then if the contact sends a message using X phone number,
+ // then room.v.phoneNo would be X and correspondingly we'll store the timestamp of
+ // the last message from this visitor from X phone no on room.v.lastMessageTs
+ ...(phone && { channelPhone: phone }),
+ ...(lastMessageTs && { lastMessageTs }),
+ };
  },
  department: async (room) => {
  const { departmentId } = room;

apps/meteor/app/livechat/server/hooks/saveLastVisitorMessageTs.ts

@@ -9,6 +9,9 @@ callbacks.add(
  if (!(isOmnichannelRoom(room) && room.v.token)) {
  return message;
  }
+ if (message.t) {
+ return message;
+ }
  if (message.token) {
  await LivechatRooms.setVisitorLastMessageTimestampByRoomId(room._id, message.ts);
  }

packages/core-typings/src/IInquiry.ts

@@ -18,6 +18,9 @@ export enum LivechatInquiryStatus {
  OPEN = 'open',
 }
 
+// This is a subset of the IVisitor interface + channel related fields
+// IMPORTANT: If you're adding a new field here, make sure to update the
+// apps-engine's room converter to include it too
 export interface IVisitor {
  _id: string;
  username: string;