Add customer relations contacts viewer

We recently introduced the root component as a placeholder.
This MR now wires it up to display a list of crm contacts.

Changelog: added

app/assets/javascripts/crm/components/contacts_root.vue

 <script>
-export default {};
+import { GlLoadingIcon, GlTable } from '@gitlab/ui';
+import createFlash from '~/flash';
+import { s__, __ } from '~/locale';
+import getGroupContactsQuery from './queries/get_group_contacts.query.graphql';
+
+export default {
+  components: {
+    GlLoadingIcon,
+    GlTable,
+  },
+  inject: ['groupFullPath'],
+  data() {
+    return { contacts: [] };
+  },
+  apollo: {
+    contacts: {
+      query() {
+        return getGroupContactsQuery;
+      },
+      variables() {
+        return {
+          groupFullPath: this.groupFullPath,
+        };
+      },
+      update(data) {
+        return this.extractContacts(data);
+      },
+      error(error) {
+        createFlash({
+          message: __('Something went wrong. Please try again.'),
+          error,
+          captureError: true,
+        });
+      },
+    },
+  },
+  computed: {
+    isLoading() {
+      return this.$apollo.queries.contacts.loading;
+    },
+  },
+  methods: {
+    extractContacts(data) {
+      const contacts = data?.group?.contacts?.nodes || [];
+      return contacts.slice().sort((a, b) => a.firstName.localeCompare(b.firstName));
+    },
+  },
+  fields: [
+    { key: 'firstName', sortable: true },
+    { key: 'lastName', sortable: true },
+    { key: 'email', sortable: true },
+    { key: 'phone', sortable: true },
+    { key: 'description', sortable: true },
+    {
+      key: 'organization',
+      formatter: (organization) => {
+        return organization?.name;
+      },
+      sortable: true,
+    },
+  ],
+  i18n: {
+    emptyText: s__('Crm|No contacts found'),
+  },
+};
 </script>
 
 <template>
-  <div></div>
+  <div>
+    <gl-loading-icon v-if="isLoading" class="gl-mt-5" size="lg" />
+    <gl-table
+      v-else
+      :items="contacts"
+      :fields="$options.fields"
+      :empty-text="$options.i18n.emptyText"
+      show-empty
+    />
+  </div>
 </template>

app/assets/javascripts/crm/components/queries/get_group_contacts.query.graphql

+query contacts($groupFullPath: ID!) {
+  group(fullPath: $groupFullPath) {
+    __typename
+    id
+    contacts {
+      nodes {
+        __typename
+        id
+        firstName
+        lastName
+        email
+        phone
+        description
+        organization {
+          __typename
+          id
+          name
+        }
+      }
+    }
+  }
+}

app/assets/javascripts/crm/contacts_bundle.js

 import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import createDefaultClient from '~/lib/graphql';
 import CrmContactsRoot from './components/contacts_root.vue';
 
+Vue.use(VueApollo);
+
 export default () => {
   const el = document.getElementById('js-crm-contacts-app');
 
+  const apolloProvider = new VueApollo({
+    defaultClient: createDefaultClient(),
+  });
+
   if (!el) {
     return false;
   }
 
   return new Vue({
     el,
+    apolloProvider,
+    provide: { groupFullPath: el.dataset.groupFullPath },
     render(createElement) {
       return createElement(CrmContactsRoot);
     },

app/views/groups/crm/contacts.html.haml

 - breadcrumb_title _('Customer Relations Contacts')
 - page_title _('Customer Relations Contacts')
 
-#js-crm-contacts-app
+#js-crm-contacts-app{ data: { group_full_path: @group.full_path } }

locale/gitlab.pot

@@ -10032,6 +10032,9 @@ msgstr ""
 msgid "Critical vulnerabilities present"
 msgstr ""
 
+msgid "Crm|No contacts found"
+msgstr ""
+
 msgid "Cron Timezone"
 msgstr ""
 

spec/frontend/crm/contacts_root_spec.js

+import { GlLoadingIcon } from '@gitlab/ui';
+import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import { mountExtended, shallowMountExtended } from 'helpers/vue_test_utils_helper';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import waitForPromises from 'helpers/wait_for_promises';
+import createFlash from '~/flash';
+import ContactsRoot from '~/crm/components/contacts_root.vue';
+import getGroupContactsQuery from '~/crm/components/queries/get_group_contacts.query.graphql';
+import { getGroupContactsQueryResponse } from './mock_data';
+
+jest.mock('~/flash');
+
+describe('Customer relations contacts root app', () => {
+  Vue.use(VueApollo);
+  let wrapper;
+  let fakeApollo;
+
+  const findLoadingIcon = () => wrapper.findComponent(GlLoadingIcon);
+  const findRowByName = (rowName) => wrapper.findAllByRole('row', { name: rowName });
+  const successQueryHandler = jest.fn().mockResolvedValue(getGroupContactsQueryResponse);
+
+  const mountComponent = ({
+    queryHandler = successQueryHandler,
+    mountFunction = shallowMountExtended,
+  } = {}) => {
+    fakeApollo = createMockApollo([[getGroupContactsQuery, queryHandler]]);
+    wrapper = mountFunction(ContactsRoot, {
+      provide: { groupFullPath: 'flightjs' },
+      apolloProvider: fakeApollo,
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    fakeApollo = null;
+  });
+
+  it('should render loading spinner', () => {
+    mountComponent();
+
+    expect(findLoadingIcon().exists()).toBe(true);
+  });
+
+  it('should render error message on reject', async () => {
+    mountComponent({ queryHandler: jest.fn().mockRejectedValue('ERROR') });
+    await waitForPromises();
+
+    expect(createFlash).toHaveBeenCalled();
+  });
+
+  it('renders correct results', async () => {
+    mountComponent({ mountFunction: mountExtended });
+    await waitForPromises();
+
+    expect(findRowByName(/Marty/i)).toHaveLength(1);
+    expect(findRowByName(/George/i)).toHaveLength(1);
+    expect(findRowByName(/jd@gitlab.com/i)).toHaveLength(1);
+  });
+});

spec/frontend/crm/mock_data.js

+export const getGroupContactsQueryResponse = {
+  data: {
+    group: {
+      __typename: 'Group',
+      id: 'gid://gitlab/Group/26',
+      contacts: {
+        nodes: [
+          {
+            __typename: 'CustomerRelationsContact',
+            id: 'gid://gitlab/CustomerRelations::Contact/12',
+            firstName: 'Marty',
+            lastName: 'McFly',
+            email: 'example@gitlab.com',
+            phone: null,
+            description: null,
+            organization: {
+              __typename: 'CustomerRelationsOrganization',
+              id: 'gid://gitlab/CustomerRelations::Organization/2',
+              name: 'Tech Giant Inc',
+            },
+          },
+          {
+            __typename: 'CustomerRelationsContact',
+            id: 'gid://gitlab/CustomerRelations::Contact/16',
+            firstName: 'Boy',
+            lastName: 'George',
+            email: null,
+            phone: null,
+            description: null,
+            organization: null,
+          },
+          {
+            __typename: 'CustomerRelationsContact',
+            id: 'gid://gitlab/CustomerRelations::Contact/13',
+            firstName: 'Jane',
+            lastName: 'Doe',
+            email: 'jd@gitlab.com',
+            phone: '+44 44 4444 4444',
+            description: 'Vice President',
+            organization: null,
+          },
+        ],
+        __typename: 'CustomerRelationsContactConnection',
+      },
+    },
+  },
+};