chore: Merge contact copy over information (#2812)

fixes: #2767, #2773

Co-authored-by: Nithin David <1277421+nithindavid@users.noreply.github.com>

app/actions/contact_merge_action.rb

@@ -1,4 +1,5 @@
 class ContactMergeAction
+  include Events::Types
   pattr_initialize [:account!, :base_contact!, :mergee_contact!]
 
   def perform
@@ -11,7 +12,7 @@ class ContactMergeAction
       merge_conversations
       merge_messages
       merge_contact_inboxes
-      remove_mergee_contact
+      merge_and_remove_mergee_contact
     end
     @base_contact
   end
@@ -40,7 +41,18 @@ class ContactMergeAction
     ContactInbox.where(contact_id: @mergee_contact.id).update(contact_id: @base_contact.id)
   end
 
-  def remove_mergee_contact
+  def merge_and_remove_mergee_contact
+    mergable_attribute_keys = %w[identifier name email phone_number custom_attributes]
+    base_contact_attributes = base_contact.attributes.slice(*mergable_attribute_keys).compact_blank
+    mergee_contact_attributes = mergee_contact.attributes.slice(*mergable_attribute_keys).compact_blank
+
+    # attributes in base contact are given preference
+    merged_attributes = mergee_contact_attributes.deep_merge(base_contact_attributes)
+    # retaining old pubsub token to notify the contacts that are listening
+    mergee_pubsub_token = mergee_contact.pubsub_token
+
     @mergee_contact.destroy!
+    Rails.configuration.dispatcher.dispatch(CONTACT_MERGED, Time.zone.now, contact: @base_contact, tokens: [mergee_pubsub_token])
+    @base_contact.update!(merged_attributes)
   end
 end

app/javascript/widget/helpers/actionCable.js

@@ -10,9 +10,22 @@ class ActionCableConnector extends BaseActionCableConnector {
       'conversation.typing_off': this.onTypingOff,
       'conversation.status_changed': this.onStatusChange,
       'presence.update': this.onPresenceUpdate,
+      'contact.merged': this.onContactMerge,
     };
   }
 
+  static refreshConnector = pubsubToken => {
+    if (!pubsubToken || window.chatwootPubsubToken === pubsubToken) {
+      return;
+    }
+    window.chatwootPubsubToken = pubsubToken;
+    window.actionCable.disconnect();
+    window.actionCable = new ActionCableConnector(
+      window.WOOT_WIDGET,
+      window.chatwootPubsubToken
+    );
+  };
+
   onStatusChange = data => {
     this.app.$store.dispatch('conversationAttributes/update', data);
   };
@@ -33,6 +46,11 @@ class ActionCableConnector extends BaseActionCableConnector {
     this.app.$store.dispatch('agent/updatePresence', data.users);
   };
 
+  onContactMerge = data => {
+    const { pubsub_token: pubsubToken } = data;
+    ActionCableConnector.refreshConnector(pubsubToken);
+  };
+
   onTypingOn = () => {
     this.clearTimer();
     this.app.$store.dispatch('conversation/toggleAgentTyping', {
@@ -63,16 +81,7 @@ class ActionCableConnector extends BaseActionCableConnector {
   };
 }
 
-export const refreshActionCableConnector = pubsubToken => {
-  if (!pubsubToken || window.chatwootPubsubToken === pubsubToken) {
-    return;
-  }
-  window.chatwootPubsubToken = pubsubToken;
-  window.actionCable.disconnect();
-  window.actionCable = new ActionCableConnector(
-    window.WOOT_WIDGET,
-    window.chatwootPubsubToken
-  );
-};
+export const refreshActionCableConnector =
+  ActionCableConnector.refreshConnector;
 
 export default ActionCableConnector;

app/listeners/action_cable_listener.rb

@@ -104,6 +104,13 @@ class ActionCableListener < BaseListener
     broadcast(account, tokens, CONTACT_UPDATED, contact.push_event_data)
   end
 
+  def contact_merged(event)
+    contact, account = extract_contact_and_account(event)
+    tokens = event.data[:tokens]
+
+    broadcast(account, tokens, CONTACT_MERGED, contact.push_event_data)
+  end
+
   private
 
   def typing_event_listener_tokens(account, conversation, user)

app/models/contact.rb

@@ -77,6 +77,8 @@ class Contact < ApplicationRecord
     }
   end
 
+  private
+
   def ip_lookup
     return unless account.feature_enabled?('ip_lookup')