From 7b4cac746a6f6b7c33d8f081b09a7ec390a199dd Mon Sep 17 00:00:00 2001
From: Tejaswini Chile <tejaswini@chatwoot.com>
Date: Mon, 21 Mar 2022 17:10:15 +0530
Subject: [PATCH] feat: enhancement to un-send instagram message (#4120)

---
 app/services/instagram/message_text.rb        | 15 +++++++++++
 .../instagram_message_create_event.rb         | 27 +++++++++++++++++++
 .../webhooks/instagram_events_job_spec.rb     | 21 +++++++++++++++
 3 files changed, 63 insertions(+)

diff --git a/app/services/instagram/message_text.rb b/app/services/instagram/message_text.rb
index 9fc1164a3..6905700dd 100644
--- a/app/services/instagram/message_text.rb
+++ b/app/services/instagram/message_text.rb
@@ -20,6 +20,8 @@ class Instagram::MessageText < Instagram::WebhooksBaseService
     # person can connect the channel and then delete the inbox
     return if @inbox.blank?
 
+    return unsend_message if message_is_deleted?
+
     ensure_contact(contact_id)
 
     create_message
@@ -46,6 +48,19 @@ class Instagram::MessageText < Instagram::WebhooksBaseService
     @messaging[:message][:is_echo].present?
   end
 
+  def message_is_deleted?
+    @messaging[:message][:is_deleted].present?
+  end
+
+  def unsend_message
+    message_to_delete = @inbox.messages.find_by(
+      source_id: @messaging[:message][:mid]
+    )
+    return if message_to_delete.blank?
+
+    message_to_delete.update!(content: I18n.t('conversations.messages.deleted'), deleted: true)
+  end
+
   def create_message
     Messages::Instagram::MessageBuilder.new(@messaging, @inbox, outgoing_echo: agent_message_via_echo?).perform
   end
diff --git a/spec/factories/instagram/instagram_message_create_event.rb b/spec/factories/instagram/instagram_message_create_event.rb
index b4ffa2dff..b62797630 100644
--- a/spec/factories/instagram/instagram_message_create_event.rb
+++ b/spec/factories/instagram/instagram_message_create_event.rb
@@ -56,6 +56,33 @@ FactoryBot.define do
     initialize_with { attributes }
   end
 
+  factory :instagram_message_unsend_event, class: Hash do
+    entry do
+      [
+        {
+          'id': 'instagram-message-id-123',
+          'time': '2021-09-08T06:34:04+0000',
+          'messaging': [
+            {
+              'sender': {
+                'id': 'Sender-id-1'
+              },
+              'recipient': {
+                'id': 'chatwoot-app-user-id-1'
+              },
+              'timestamp': '2021-09-08T06:34:04+0000',
+              'message': {
+                'mid': 'message-id-to-delete',
+                'is_deleted': true
+              }
+            }
+          ]
+        }
+      ]
+    end
+    initialize_with { attributes }
+  end
+
   factory :instagram_message_attachment_event, class: Hash do
     entry do
       [
diff --git a/spec/jobs/webhooks/instagram_events_job_spec.rb b/spec/jobs/webhooks/instagram_events_job_spec.rb
index eaf77bf7b..bf3b43e14 100644
--- a/spec/jobs/webhooks/instagram_events_job_spec.rb
+++ b/spec/jobs/webhooks/instagram_events_job_spec.rb
@@ -28,6 +28,7 @@ describe Webhooks::InstagramEventsJob do
   let!(:instagram_inbox) { create(:inbox, channel: instagram_channel, account: account, greeting_enabled: false) }
   let!(:dm_params) { build(:instagram_message_create_event).with_indifferent_access }
   let!(:test_params) { build(:instagram_test_text_event).with_indifferent_access }
+  let!(:unsend_event) { build(:instagram_message_unsend_event).with_indifferent_access }
   let!(:attachment_params) { build(:instagram_message_attachment_event).with_indifferent_access }
   let!(:story_mention_params) { build(:instagram_story_mention_event).with_indifferent_access }
   let(:fb_object) { double }
@@ -61,6 +62,26 @@ describe Webhooks::InstagramEventsJob do
         expect(instagram_inbox.messages.last.content).to eq('This is a test message from facebook.')
       end
 
+      it 'handle instagram unsend message event' do
+        create(:message,
+               source_id: 'message-id-to-delete',
+               inbox_id: instagram_inbox.id)
+        allow(Koala::Facebook::API).to receive(:new).and_return(fb_object)
+        allow(fb_object).to receive(:get_object).and_return(
+          {
+            name: 'Jane',
+            id: 'Sender-id-1',
+            account_id: instagram_inbox.account_id,
+            profile_pic: 'https://chatwoot-assets.local/sample.png'
+          }.with_indifferent_access
+        )
+        expect(instagram_inbox.messages.count).to be 1
+        instagram_webhook.perform_now(unsend_event[:entry])
+
+        expect(instagram_inbox.messages.last.content).to eq 'This message was deleted'
+        expect(instagram_inbox.messages.last.reload.deleted).to eq true
+      end
+
       it 'creates incoming message with attachments in the instagram inbox' do
         allow(Koala::Facebook::API).to receive(:new).and_return(fb_object)
         allow(fb_object).to receive(:get_object).and_return(