Use actual /group/project/service_desk endpoint

 - Prerender data-* attributes for endpoint, enabled, incoming_email to
   hydrate Vue component
 - Use actual /group/project/service_desk endpoint GET/PUT

app/assets/javascripts/dispatcher.js

@@ -49,7 +49,7 @@ import BlobForkSuggestion from './blob/blob_fork_suggestion';
 import UserCallout from './user_callout';
 
 import GeoNodes from './geo_nodes';
-import ServiceDeskEntry from './projects/settings_service_desk/service_desk_entry';
+import ServiceDeskRoot from './projects/settings_service_desk/service_desk_root';
 
 const ShortcutsBlob = require('./shortcuts_blob');
 
@@ -230,8 +230,11 @@ const ShortcutsBlob = require('./shortcuts_blob');
           shortcut_handler = new ShortcutsNavigation();
           break;
         case 'projects:edit':
-          const serviceDeskEntry = new ServiceDeskEntry(document.querySelector('.js-service-desk-setting-wrapper'));
-          serviceDeskEntry.init();
+          const el = document.querySelector('.js-service-desk-setting-root');
+          if (el) {
+            const serviceDeskRoot = new ServiceDeskRoot(el);
+            serviceDeskRoot.init();
+          }
           break;
         case 'projects:show':
           shortcut_handler = new ShortcutsNavigation();

app/assets/javascripts/projects/settings_service_desk/components/service_desk_setting.js

@@ -5,7 +5,7 @@ export default {
   name: 'ServiceDeskSetting',
 
   props: {
-    isActivated: {
+    isEnabled: {
       type: Boolean,
       required: true,
     },
@@ -15,7 +15,7 @@ export default {
       default: '',
     },
     fetchError: {
-      type: Object,
+      type: Error,
       required: false,
       default: null,
     },
@@ -48,14 +48,14 @@ export default {
           <input
             type="checkbox"
             id="service-desk-enabled-checkbox"
-            :checked="isActivated"
+            :checked="isEnabled"
             @change="onCheckboxToggle($event)">
           <span class="descr">
             Activate service desk
           </span>
         </label>
       </div>
-      <template v-if="isActivated">
+      <template v-if="isEnabled">
         <div
           class="panel-slim panel-default">
           <div class="panel-heading">

app/assets/javascripts/projects/settings_service_desk/service_desk_entry.js → app/assets/javascripts/projects/settings_service_desk/service_desk_root.js

@@ -5,17 +5,28 @@ import ServiceDeskStore from './stores/service_desk_store';
 import ServiceDeskService from './services/service_desk_service';
 import eventHub from './event_hub';
 
-class ServiceDeskEntry {
+class ServiceDeskRoot {
   constructor(wrapperElement) {
     this.wrapperElement = wrapperElement;
+    const isEnabled = this.wrapperElement.dataset.enabled !== undefined &&
+      this.wrapperElement.dataset.enabled !== 'false';
+    const incomingEmail = this.wrapperElement.dataset.incomingEmail;
     const endpoint = this.wrapperElement.dataset.endpoint;
 
-    this.store = new ServiceDeskStore();
+    this.store = new ServiceDeskStore({
+      isEnabled,
+      incomingEmail,
+    });
     this.service = new ServiceDeskService(endpoint);
   }
 
   init() {
     this.bindEvents();
+
+    if (this.store.state.isEnabled && !this.store.state.incomingEmail) {
+      this.fetchIncomingEmail();
+    }
+
     this.render();
   }
 
@@ -35,7 +46,7 @@ class ServiceDeskEntry {
       data: this.store.state,
       template: `
         <service-desk-setting
-          :isActivated="isActivated"
+          :isEnabled="isEnabled"
           :incomingEmail="incomingEmail"
           :fetchError="fetchError" />
       `,
@@ -45,19 +56,28 @@ class ServiceDeskEntry {
     });
   }
 
+  fetchIncomingEmail() {
+    this.service.fetchIncomingEmail()
+      .then((incomingEmail) => {
+        this.store.setIncomingEmail(incomingEmail);
+      })
+      .catch((err) => {
+        this.store.setFetchError(err);
+      });
+  }
+
   onEnableToggled(isChecked) {
     this.store.setIsActivated(isChecked);
-    if (isChecked) {
-      this.store.setIncomingEmail('');
-      this.store.setFetchError(null);
-      this.service.fetchIncomingEmail()
-        .then((incomingEmail) => {
-          this.store.setIncomingEmail(incomingEmail);
-        })
-        .catch((err) => {
-          this.store.setFetchError(err);
-        });
-    }
+    this.store.setIncomingEmail('');
+    this.store.setFetchError(null);
+
+    this.service.toggleServiceDesk(isChecked)
+      .then((incomingEmail) => {
+        this.store.setIncomingEmail(incomingEmail);
+      })
+      .catch((err) => {
+        this.store.setFetchError(err);
+      });
   }
 
   destroy() {
@@ -68,4 +88,4 @@ class ServiceDeskEntry {
   }
 }
 
-export default ServiceDeskEntry;
+export default ServiceDeskRoot;

app/assets/javascripts/projects/settings_service_desk/services/service_desk_service.js

@@ -6,12 +6,33 @@ Vue.use(vueResource);
 
 class ServiceDeskService {
   constructor(endpoint) {
-    this.serviceDeskEnabledResource = Vue.resource(`${endpoint}/service_desk_address`);
+    this.serviceDeskResource = Vue.resource(`${endpoint}`);
   }
 
   fetchIncomingEmail() {
-    return this.serviceDeskEnabledResource.get()
-      .then(res => res.data.incomingEmail);
+    return this.serviceDeskResource.get()
+      .then((res) => {
+        const email = res.data.service_desk_address;
+        if (!email) {
+          throw new Error('Response didn\'t include `service_desk_address`');
+        }
+
+        return email;
+      });
+  }
+
+  toggleServiceDesk(enable) {
+    return this.serviceDeskResource.update({
+      service_desk_enabled: enable,
+    })
+      .then((res) => {
+        const email = res.data.service_desk_address;
+        if (enable && !email) {
+          throw new Error('Response didn\'t include `service_desk_address`');
+        }
+
+        return email;
+      });
   }
 }
 

app/assets/javascripts/projects/settings_service_desk/stores/service_desk_store.js

 class ServiceDeskStore {
   constructor(initialState = {}) {
     this.state = Object.assign({
-      isActivated: false,
+      isEnabled: false,
       incomingEmail: '',
       fetchError: null,
     }, initialState);
   }
 
   setIsActivated(value) {
-    this.state.isActivated = value;
+    this.state.isEnabled = value;
   }
 
   setIncomingEmail(value) {

app/views/projects/edit.html.haml

@@ -126,12 +126,15 @@
 
         = render 'merge_request_settings', form: f
 
-        %hr
-        %fieldset.features.append-bottom-default
-          %h5.prepend-top-0
-            Service Desk
-            = link_to icon('question-circle'), help_page_path("TODO")
-          .js-service-desk-setting-wrapper{ data: { endpoint: namespace_project_path(@project.namespace, @project), enabled: @project.service_desk_enabled?, incomingAddress: (@project.service_desk_address if @project.service_desk_enabled? ) } }
+        - if EE::Gitlab::ServiceDesk.enabled?
+          %hr
+          %fieldset.js-service-desk-setting-wrapper.features.append-bottom-default
+            %h5.prepend-top-0
+              Service Desk
+              = link_to icon('question-circle'), help_page_path("TODO")
+            .js-service-desk-setting-root{ data: { endpoint: namespace_project_service_desk_path(@project.namespace, @project),
+              enabled: @project.service_desk_enabled,
+              incoming_email: (@project.service_desk_address if @project.service_desk_enabled) } }
 
         %hr
         %fieldset.features.append-bottom-default

spec/features/projects/settings/ee/service_desk_setting_spec.rb

+require 'spec_helper'
+
+describe 'Service Desk Setting', js: true, feature: true do
+  include WaitForAjax
+
+  let(:project) { create(:project_empty_repo, :private) }
+  let(:user) { create(:user) }
+
+  before do
+    project.add_master(user)
+    login_as(user)
+    allow_any_instance_of(License).to receive(:add_on?).and_call_original
+    allow_any_instance_of(License).to receive(:add_on?).with('GitLab_ServiceDesk') { true }
+
+    visit edit_namespace_project_path(project.namespace, project)
+  end
+
+  it 'shows service desk activation checkbox' do
+    expect(page).to have_selector("#service-desk-enabled-checkbox")
+  end
+
+  it 'shows incoming email after activating' do
+    find("#service-desk-enabled-checkbox").click
+    wait_for_ajax
+    expect(find('.js-service-desk-setting-wrapper .panel-body')).to have_content(project.service_desk_address)
+  end
+end

spec/javascripts/projects/settings_service_desk/components/service_desk_setting_spec.js

@@ -19,13 +19,13 @@ describe('ServiceDeskSetting', () => {
     }
   });
 
-  describe('when isActivated=true', () => {
+  describe('when isEnabled=true', () => {
     let el;
 
-    describe('only isActivated', () => {
+    describe('only isEnabled', () => {
       beforeEach(() => {
         vm = createComponent({
-          isActivated: true,
+          isEnabled: true,
         });
         el = vm.$el;
       });
@@ -48,7 +48,7 @@ describe('ServiceDeskSetting', () => {
     describe('with incomingEmail', () => {
       beforeEach(() => {
         vm = createComponent({
-          isActivated: true,
+          isEnabled: true,
           incomingEmail: 'foo@bar.com',
         });
         el = vm.$el;
@@ -64,7 +64,7 @@ describe('ServiceDeskSetting', () => {
     describe('with fetchError', () => {
       beforeEach(() => {
         vm = createComponent({
-          isActivated: true,
+          isEnabled: true,
           fetchError: new Error('some-fake-failure'),
         });
         el = vm.$el;
@@ -79,12 +79,12 @@ describe('ServiceDeskSetting', () => {
     });
   });
 
-  describe('when isActivated=false', () => {
+  describe('when isEnabled=false', () => {
     let el;
 
     beforeEach(() => {
       vm = createComponent({
-        isActivated: false,
+        isEnabled: false,
       });
       el = vm.$el;
     });
@@ -107,7 +107,7 @@ describe('ServiceDeskSetting', () => {
         eventHub.$on('serviceDeskEnabledCheckboxToggled', onCheckboxToggleSpy);
 
         vm = createComponent({
-          isActivated: false,
+          isEnabled: false,
         });
       });
 
@@ -139,7 +139,7 @@ describe('ServiceDeskSetting', () => {
     describe('copyIncomingEmail', () => {
       beforeEach(() => {
         vm = createComponent({
-          isActivated: true,
+          isEnabled: true,
           incomingEmail: 'foo@bar.com',
         });
       });

spec/javascripts/projects/settings_service_desk/services/service_desk_service_spec.js

@@ -8,9 +8,10 @@ describe('ServiceDeskService', () => {
   });
 
   it('fetchIncomingEmail', (done) => {
-    spyOn(service.project, 'get').and.returnValue(Promise.resolve({
+    spyOn(service.serviceDeskResource, 'get').and.returnValue(Promise.resolve({
       data: {
-        incomingEmail: 'foo@bar.com',
+        service_desk_enabled: true,
+        service_desk_address: 'foo@bar.com',
       },
     }));
 
@@ -23,4 +24,42 @@ describe('ServiceDeskService', () => {
         done.fail(`Failed to fetch incoming email:\n${err}`);
       });
   });
+
+  describe('toggleServiceDesk', () => {
+    it('enable service desk', (done) => {
+      spyOn(service.serviceDeskResource, 'update').and.returnValue(Promise.resolve({
+        data: {
+          service_desk_enabled: true,
+          service_desk_address: 'foo@bar.com',
+        },
+      }));
+
+      service.toggleServiceDesk(true)
+        .then((incomingEmail) => {
+          expect(incomingEmail).toEqual('foo@bar.com');
+          done();
+        })
+        .catch((err) => {
+          done.fail(`Failed to enable service desk and fetch incoming email:\n${err}`);
+        });
+    });
+
+    it('disable service desk', (done) => {
+      spyOn(service.serviceDeskResource, 'update').and.returnValue(Promise.resolve({
+        data: {
+          service_desk_enabled: false,
+          service_desk_address: null,
+        },
+      }));
+
+      service.toggleServiceDesk(false)
+        .then((incomingEmail) => {
+          expect(incomingEmail).toEqual(null);
+          done();
+        })
+        .catch((err) => {
+          done.fail(`Failed to disable service desk and reset incoming email:\n${err}`);
+        });
+    });
+  });
 });

spec/javascripts/projects/settings_service_desk/stores/service_desk_store_spec.js

@@ -9,19 +9,19 @@ describe('ServiceDeskStore', () => {
 
   describe('setIsActivated', () => {
     it('defaults to false', () => {
-      expect(store.state.isActivated).toEqual(false);
+      expect(store.state.isEnabled).toEqual(false);
     });
 
     it('set true', () => {
       store.setIsActivated(true);
 
-      expect(store.state.isActivated).toEqual(true);
+      expect(store.state.isEnabled).toEqual(true);
     });
 
     it('set false', () => {
       store.setIsActivated(false);
 
-      expect(store.state.isActivated).toEqual(false);
+      expect(store.state.isEnabled).toEqual(false);
     });
   });