fix: Add a check for 24 hour window before sending a message (#1084)

Co-authored-by: Sojan Jose <sojan@pepalo.com>

spec/models/conversation_spec.rb

@@ -315,6 +315,7 @@ RSpec.describe Conversation, type: :model do
         inbox_id: conversation.inbox_id,
         status: conversation.status,
         timestamp: conversation.created_at.to_i,
+        can_reply: true,
         channel: 'Channel::WebWidget',
         user_last_seen_at: conversation.user_last_seen_at.to_i,
         agent_last_seen_at: conversation.agent_last_seen_at.to_i,
@@ -347,4 +348,45 @@ RSpec.describe Conversation, type: :model do
       expect(conversation.status).to eq('bot')
     end
   end
+
+  describe '#can_reply?' do
+    describe 'on channels without 24 hour restriction' do
+      let(:conversation) { create(:conversation) }
+
+      it 'returns true' do
+        expect(conversation.can_reply?).to eq true
+      end
+    end
+
+    describe 'on channels with 24 hour restriction' do
+      let!(:facebook_channel) { create(:channel_facebook_page) }
+      let!(:facebook_inbox) { create(:inbox, channel: facebook_channel, account: facebook_channel.account) }
+      let!(:conversation) { create(:conversation, inbox: facebook_inbox, account: facebook_channel.account) }
+
+      it 'returns false if there are no incoming messages' do
+        expect(conversation.can_reply?).to eq false
+      end
+
+      it 'return false if last incoming message is outside of 24 hour window' do
+        create(
+          :message,
+          account: conversation.account,
+          inbox: facebook_inbox,
+          conversation: conversation,
+          created_at: Time.now - 25.hours
+        )
+        expect(conversation.can_reply?).to eq false
+      end
+
+      it 'return true if last incoming message is inside 24 hour window' do
+        create(
+          :message,
+          account: conversation.account,
+          inbox: facebook_inbox,
+          conversation: conversation
+        )
+        expect(conversation.can_reply?).to eq true
+      end
+    end
+  end
 end