feat: send instagram message after 24 hours (#4698)

Added MESSAGE_TAG: HUMAN_AGENT for Instagram messages if the user wants to send it after the standard message window.

Fixes #4689

spec/models/conversation_spec.rb

@@ -512,6 +512,38 @@ RSpec.describe Conversation, type: :model do
         )
         expect(conversation.can_reply?).to eq true
       end
+
+      context 'when instagram channel' do
+        it 'return true with HUMAN_AGENT if it is outside of 24 hour window' do
+          InstallationConfig.where(name: 'ENABLE_MESSENGER_CHANNEL_HUMAN_AGENT').first_or_create(value: true)
+
+          conversation.update(additional_attributes: { type: 'instagram_direct_message' })
+          create(
+            :message,
+            account: conversation.account,
+            inbox: facebook_inbox,
+            conversation: conversation,
+            created_at: Time.now - 48.hours
+          )
+
+          expect(conversation.can_reply?).to eq true
+        end
+
+        it 'return false without HUMAN_AGENT if it is outside of 24 hour window' do
+          InstallationConfig.where(name: 'ENABLE_MESSENGER_CHANNEL_HUMAN_AGENT').first_or_create(value: false)
+
+          conversation.update(additional_attributes: { type: 'instagram_direct_message' })
+          create(
+            :message,
+            account: conversation.account,
+            inbox: facebook_inbox,
+            conversation: conversation,
+            created_at: Time.now - 48.hours
+          )
+
+          expect(conversation.can_reply?).to eq false
+        end
+      end
     end
   end