[verified] Restore Chatwoot Hub compatibility APIs

lib/chatwoot_hub.rb

@@ -5,6 +5,10 @@ class ChatwootHub
     DEFAULT_BASE_URL
   end
 
+  def self.push_notification_url
+    "#{base_url}/send_push"
+  end
+
   def self.billing_base_url
     "#{base_url}/billing"
   end
@@ -38,6 +42,29 @@ class ChatwootHub
       support_identifier_hash: InstallationConfig.find_by(name: 'CHATWOOT_SUPPORT_IDENTIFIER_HASH')&.value
     }
   end
+
+  def self.instance_config
+    {
+      installation_identifier: installation_identifier,
+      installation_version: Chatwoot.config[:version],
+      installation_host: URI.parse(ENV.fetch('FRONTEND_URL', '')).host,
+      installation_env: ENV.fetch('INSTALLATION_ENV', ''),
+      edition: ENV.fetch('CW_EDITION', '')
+    }
+  end
+
+  def self.send_push(fcm_options)
+    send_push_with_response(fcm_options)
+  rescue *ExceptionList::REST_CLIENT_EXCEPTIONS => e
+    Rails.logger.error "Exception: #{e.message}"
+  rescue StandardError => e
+    ChatwootExceptionTracker.new(e).capture_exception
+  end
+
+  def self.send_push_with_response(fcm_options)
+    info = { fcm_options: fcm_options }
+    RestClient.post(push_notification_url, info.merge(instance_config).to_json, { content_type: :json, accept: :json })
+  end
 end
 
 ChatwootHub.singleton_class.prepend_mod_with('ChatwootHub')

spec/lib/chatwoot_hub_spec.rb

@@ -7,6 +7,11 @@ describe ChatwootHub do
     expect(described_class).not_to respond_to(:emit_event)
   end
 
+  it 'retains push and instance compatibility APIs for the push-relay task' do
+    expect(described_class).to respond_to(:push_notification_url, :send_push, :send_push_with_response, :instance_config)
+    expect(described_class.push_notification_url).to eq('https://hub.2.chatwoot.com/send_push')
+  end
+
   describe '.base_url' do
     it 'uses the static hub url' do
       expect(described_class::DEFAULT_BASE_URL).to eq('https://hub.2.chatwoot.com')