fix: emit bot handoff on assignment takeover

app/models/conversation.rb

@@ -121,7 +121,7 @@ class Conversation < ApplicationRecord
   before_create :determine_conversation_status
   before_create :ensure_waiting_since
 
-  after_update_commit :execute_after_update_commit_callbacks
+  after_update_commit :execute_after_update_commit_callbacks, :dispatch_agent_bot_handoff
   after_create_commit :notify_conversation_creation
   after_create_commit :load_attributes_created_by_db_triggers
   before_destroy :set_unread_count_deletion_data
@@ -274,7 +274,12 @@ class Conversation < ApplicationRecord
   def handle_agent_bot_takeover_by_assignee
     return if assignee_id.blank? || assignee_agent_bot_id.blank?
 
-    self.status = :open if pending?
+    if pending?
+      self.status = :open
+      self.waiting_since ||= Time.current
+      @agent_bot_handoff_by_assignee = true
+    end
+
     self.assignee_agent_bot_id = nil
   end
 
@@ -341,6 +346,12 @@ class Conversation < ApplicationRecord
     end
   end
 
+  def dispatch_agent_bot_handoff
+    return unless @agent_bot_handoff_by_assignee
+
+    dispatcher_dispatch(CONVERSATION_BOT_HANDOFF)
+  end
+
   def dispatcher_dispatch(event_name, changed_attributes = nil)
     Rails.configuration.dispatcher.dispatch(event_name, Time.zone.now, conversation: self, notifiable_assignee_change: notifiable_assignee_change?,
                                                                        changed_attributes: changed_attributes,

spec/services/action_service_spec.rb

@@ -61,6 +61,7 @@ describe ActionService do
       it 'opens bot-owned pending conversations when assigning the agent' do
         inbox_member
         conversation.update!(assignee: nil, assignee_agent_bot: create(:agent_bot, account: account), status: :pending)
+        allow(Rails.configuration.dispatcher).to receive(:dispatch)
 
         action_service.assign_agent([agent.id])
 
@@ -68,6 +69,8 @@ describe ActionService do
         expect(conversation.assignee).to eq(agent)
         expect(conversation.assignee_agent_bot).to be_nil
         expect(conversation.status).to eq('open')
+        expect(Rails.configuration.dispatcher).to have_received(:dispatch)
+          .with(Events::Types::CONVERSATION_BOT_HANDOFF, kind_of(Time), hash_including(conversation: conversation))
       end
     end