1 files changed, 74 insertions, 0 deletions
diff --git a/app/services/service_desk/custom_email_verifications/create_service.rb b/app/services/service_desk/custom_email_verifications/create_service.rb
new file mode 100644
index 00000000000..db518bfdf24
--- /dev/null
+++ b/app/services/service_desk/custom_email_verifications/create_service.rb
@@ -0,0 +1,74 @@
+# frozen_string_literal: true
+
+module ServiceDesk
+  module CustomEmailVerifications
+    class CreateService < BaseService
+      attr_reader :ramp_up_error
+
+      def execute
+        return error_feature_flag_disabled unless Feature.enabled?(:service_desk_custom_email, project)
+        return error_settings_missing unless settings.present?
+        return error_user_not_authorized unless can?(current_user, :admin_project, project)
+
+        update_settings
+        notify_project_owners_and_user_about_verification_start
+        send_verification_email_and_catch_delivery_errors
+
+        if ramp_up_error
+          handle_error_case
+        else
+          ServiceResponse.success
+        end
+      end
+
+      private
+
+      def verification
+        @verification ||= settings.custom_email_verification ||
+          ServiceDesk::CustomEmailVerification.new(project_id: settings.project_id)
+      end
+
+      def update_settings
+        settings.update!(custom_email_enabled: false) if settings.custom_email_enabled?
+
+        verification.mark_as_started!(current_user)
+        # We use verification association from project, to use it in email, we need to reset it here.
+        project.reset
+      end
+
+      def notify_project_owners_and_user_about_verification_start
+        notify_project_owners_and_user_with_email(
+          email_method_name: :service_desk_verification_triggered_email,
+          user: current_user
+        )
+      end
+
+      def send_verification_email_and_catch_delivery_errors
+        # Send this synchronously as we need to get direct feedback on delivery errors.
+        Notify.service_desk_custom_email_verification_email(settings).deliver
+      rescue SocketError, OpenSSL::SSL::SSLError
+        # e.g. host not found or host certificate issues
+        @ramp_up_error = :smtp_host_issue
+      rescue Net::SMTPAuthenticationError
+        # incorrect username or password
+        @ramp_up_error = :invalid_credentials
+      end
+
+      def handle_error_case
+        notify_project_owners_and_user_about_result(user: current_user)
+
+        verification.mark_as_failed!(ramp_up_error)
+
+        error_not_verified(ramp_up_error)
+      end
+
+      def error_settings_missing
+        error_response(_('ServiceDesk|Service Desk setting missing'))
+      end
+
+      def error_user_not_authorized
+        error_response(_('ServiceDesk|User cannot manage project.'))
+      end
+    end
+  end
+end