Add CRUD for Group-Level Integrations

Add routes, controller, views, assets to allow user to
edit / update / test a group-level integration.

app/assets/javascripts/pages/groups/settings/integrations/edit/index.js

+import IntegrationSettingsForm from '~/integrations/integration_settings_form';
+import PrometheusMetrics from '~/prometheus_metrics/prometheus_metrics';
+import initAlertsSettings from '~/alerts_service_settings';
+
+document.addEventListener('DOMContentLoaded', () => {
+  const prometheusSettingsWrapper = document.querySelector('.js-prometheus-metrics-monitoring');
+  const integrationSettingsForm = new IntegrationSettingsForm('.js-integration-settings-form');
+  integrationSettingsForm.init();
+
+  if (prometheusSettingsWrapper) {
+    const prometheusMetrics = new PrometheusMetrics('.js-prometheus-metrics-monitoring');
+    prometheusMetrics.loadActiveMetrics();
+  }
+
+  initAlertsSettings(document.querySelector('.js-alerts-service-settings'));
+});

app/controllers/groups/settings/integrations_controller.rb

+# frozen_string_literal: true
+
+module Groups
+  module Settings
+    class IntegrationsController < Groups::ApplicationController
+      include ServiceParams
+
+      before_action :not_found, unless: :group_level_integrations_enabled?
+      before_action :authorize_admin_group!
+      before_action :service, only: [:edit, :update, :test]
+
+      def edit
+      end
+
+      def update
+        @service.attributes = service_params[:service]
+
+        saved = @service.save(context: :manual_change)
+
+        respond_to do |format|
+          format.html do
+            if saved
+              redirect_to edit_group_settings_integration_path(@group, @service), notice: success_message
+            else
+              render :edit
+            end
+          end
+
+          format.json do
+            status = saved ? :ok : :unprocessable_entity
+
+            render json: serialize_as_json, status: status
+          end
+        end
+      end
+
+      def test
+        if @service.can_test?
+          render json: service_test_response, status: :ok
+        else
+          render json: {}, status: :not_found
+        end
+      end
+
+      private
+
+      def group_level_integrations_enabled?
+        Feature.enabled?(:group_level_integrations)
+      end
+
+      def project
+        # TODO: Change to something more meaningful
+        Project.first
+      end
+
+      def service
+        @service ||= project.find_or_initialize_service(params[:id])
+      end
+
+      def success_message
+        message = @service.active? ? _('activated') : _('settings saved, but not activated')
+
+        _('%{service_title} %{message}.') % { service_title: @service.title, message: message }
+      end
+
+      def serialize_as_json
+        @service
+          .as_json(only: @service.json_fields)
+          .merge(errors: @service.errors.as_json)
+      end
+
+      def service_test_response
+        unless @service.update(service_params[:service])
+          return { error: true, message: _('Validations failed.'), service_response: @service.errors.full_messages.join(','), test_failed: false }
+        end
+
+        data = @service.test_data(project, current_user)
+        outcome = @service.test(data)
+
+        unless outcome[:success]
+          return { error: true, message: _('Test failed.'), service_response: outcome[:result].to_s, test_failed: true }
+        end
+
+        {}
+      rescue Gitlab::HTTP::BlockedUrlError => e
+        { error: true, message: _('Test failed.'), service_response: e.message, test_failed: true }
+      end
+    end
+  end
+end

app/views/groups/settings/integrations/_form.html.haml

+%h3.page-title
+  = @service.title
+
+%p= @service.description
+
+= form_for @service, as: :service, url: group_settings_integration_path, method: :put, html: { class: 'gl-show-field-errors fieldset-form integration-settings-form js-integration-settings-form', data: { 'can-test' => @service.can_test?, 'test-url' => test_group_settings_integration_path(@group, @service) } } do |form|
+  = render 'shared/service_settings', form: form, service: @service
+
+  - if @service.editable?
+    .footer-block.row-content-block
+      = service_save_button(@service)
+      = link_to _('Cancel'), group_settings_integration_path, class: 'btn btn-cancel'

app/views/groups/settings/integrations/edit.html.haml

+- add_to_breadcrumbs _('Integrations'), group_settings_integration_path
+- breadcrumb_title @service.title
+- page_title @service.title, _('Integrations')
+
+= render 'form'

config/routes/admin.rb

@@ -121,7 +121,7 @@ namespace :admin do
     get '/', to: redirect('admin/application_settings/general'), as: nil
 
     resources :services, only: [:index, :edit, :update]
-    resources :integrations, only: [:edit, :update, :test] do
+    resources :integrations, only: [:edit, :update] do
       member do
         put :test
       end

config/routes/group.rb

@@ -31,6 +31,12 @@ constraints(::Constraints::GroupUrlConstrainer.new) do
         patch :update_auto_devops
         post :create_deploy_token, path: 'deploy_token/create'
       end
+
+      resources :integrations, only: [:edit, :update] do
+        member do
+          put :test
+        end
+      end
     end
 
     resource :variables, only: [:show, :update]