1 files changed, 84 insertions, 0 deletions
diff --git a/app/controllers/projects/service_desk/custom_email_controller.rb b/app/controllers/projects/service_desk/custom_email_controller.rb
new file mode 100644
index 00000000000..fb5e87f9a97
--- /dev/null
+++ b/app/controllers/projects/service_desk/custom_email_controller.rb
@@ -0,0 +1,84 @@
+# frozen_string_literal: true
+
+module Projects
+  module ServiceDesk
+    class CustomEmailController < Projects::ApplicationController
+      before_action :check_feature_flag_enabled
+      before_action :authorize_admin_project!
+
+      feature_category :service_desk
+      urgency :low
+
+      def create
+        response = ::ServiceDesk::CustomEmails::CreateService.new(
+          project: project,
+          current_user: current_user,
+          params: params
+        ).execute
+
+        json_response(service_response: response)
+      end
+
+      def update
+        response = ServiceDeskSettings::UpdateService.new(project, current_user, update_setting_params).execute
+
+        if response.error?
+          json_response(
+            error_message: s_("ServiceDesk|Cannot update custom email"),
+            status: :unprocessable_entity
+          )
+          return
+        end
+
+        json_response
+      end
+
+      def destroy
+        response = ::ServiceDesk::CustomEmails::DestroyService.new(
+          project: project,
+          current_user: current_user
+        ).execute
+
+        json_response(service_response: response)
+      end
+
+      def show
+        json_response
+      end
+
+      private
+
+      def update_setting_params
+        params.permit(:custom_email_enabled)
+      end
+
+      def json_response(error_message: nil, status: :ok, service_response: nil)
+        if service_response.present?
+          status = service_response.success? ? :ok : :unprocessable_entity
+          error_message = service_response.message
+        end
+
+        respond_to do |format|
+          format.json { render json: custom_email_attributes(error_message: error_message), status: status }
+        end
+      end
+
+      def custom_email_attributes(error_message:)
+        setting = project.service_desk_setting
+
+        {
+          custom_email: setting&.custom_email,
+          custom_email_enabled: setting&.custom_email_enabled || false,
+          custom_email_verification_state: setting&.custom_email_verification&.state,
+          custom_email_verification_error: setting&.custom_email_verification&.error,
+          custom_email_smtp_address: setting&.custom_email_credential&.smtp_address,
+          error_message: error_message
+        }
+      end
+
+      def check_feature_flag_enabled
+        render_404 unless Feature.enabled?(:service_desk_custom_email, @project)
+      end
+    end
+  end
+end