Resolve "Add issue state counts to GraphQL"

What does this MR do?

A small MVC for the frontend of #235988 (closed)

Screenshots

Table	Searched	Mobile

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Closes #235988 (closed)

app/assets/javascripts/incidents/components/incidents_list.vue

@@ -11,13 +11,17 @@ import {
   GlSearchBoxByType,
   GlIcon,
   GlPagination,
+  GlTabs,
+  GlTab,
+  GlBadge,
 } from '@gitlab/ui';
-import { debounce } from 'lodash';
+import { debounce, trim } from 'lodash';
 import TimeAgoTooltip from '~/vue_shared/components/time_ago_tooltip.vue';
 import { s__ } from '~/locale';
 import { mergeUrlParams, joinPaths, visitUrl } from '~/lib/utils/url_utility';
 import getIncidents from '../graphql/queries/get_incidents.query.graphql';
-import { I18N, DEFAULT_PAGE_SIZE, INCIDENT_SEARCH_DELAY } from '../constants';
+import getIncidentsCountByStatus from '../graphql/queries/get_count_by_state.query.graphql';
+import { I18N, DEFAULT_PAGE_SIZE, INCIDENT_SEARCH_DELAY, INCIDENT_STATE_TABS } from '../constants';
 
 const tdClass =
   'table-col gl-display-flex d-md-table-cell gl-align-items-center gl-white-space-nowrap';
@@ -35,6 +39,7 @@ const initialPaginationState = {
 
 export default {
   i18n: I18N,
+  stateTabs: INCIDENT_STATE_TABS,
   fields: [
     {
       key: 'title',
@@ -67,6 +72,9 @@ export default {
     GlSearchBoxByType,
     GlIcon,
     GlPagination,
+    GlTabs,
+    GlTab,
+    GlBadge,
   },
   directives: {
     GlTooltip: GlTooltipDirective,
@@ -78,6 +86,7 @@ export default {
       variables() {
         return {
           searchTerm: this.searchTerm,
+          state: this.stateFilter,
           projectPath: this.projectPath,
           labelNames: ['incident'],
           firstPageSize: this.pagination.firstPageSize,
@@ -96,6 +105,19 @@ export default {
         this.errored = true;
       },
     },
+    incidentsCount: {
+      query: getIncidentsCountByStatus,
+      variables() {
+        return {
+          searchTerm: this.searchTerm,
+          projectPath: this.projectPath,
+          labelNames: ['incident'],
+        };
+      },
+      update(data) {
+        return data.project?.issueStatusCounts;
+      },
+    },
   },
   data() {
     return {
@@ -105,11 +127,13 @@ export default {
       searchTerm: '',
       pagination: initialPaginationState,
       incidents: {},
+      stateFilter: '',
+      filteredByState: '',
     };
   },
   computed: {
     showErrorMsg() {
-      return this.errored && !this.isErrorAlertDismissed && !this.searchTerm;
+      return this.errored && !this.isErrorAlertDismissed && this.incidentsCount?.all === 0;
     },
     loading() {
       return this.$apollo.queries.incidents.loading;
@@ -117,6 +141,9 @@ export default {
     hasIncidents() {
       return this.incidents?.list?.length;
     },
+    incidentsForCurrentTab() {
+      return this.incidentsCount ? this.incidentsCount[this.filteredByState.toLowerCase()] : 0;
+    },
     showPaginationControls() {
       return Boolean(
         this.incidents?.pageInfo?.hasNextPage || this.incidents?.pageInfo?.hasPreviousPage,
@@ -127,7 +154,9 @@ export default {
     },
     nextPage() {
       const nextPage = this.pagination.currentPage + 1;
-      return this.incidents?.list?.length < DEFAULT_PAGE_SIZE ? null : nextPage;
+      return nextPage > Math.ceil(this.incidentsForCurrentTab / DEFAULT_PAGE_SIZE)
+        ? null
+        : nextPage;
     },
     tbodyTrClass() {
       return {
@@ -138,14 +167,18 @@ export default {
       return mergeUrlParams({ issuable_template: this.incidentTemplateName }, this.newIssuePath);
     },
   },
-  watch: {
-    searchTerm: debounce(function debounceSearch(input) {
-      if (input !== this.searchTerm) {
-        this.searchTerm = input;
+  methods: {
+    onInputChange: debounce(function debounceSearch(input) {
+      const trimmedInput = trim(input);
+      if (trimmedInput !== this.searchTerm) {
+        this.searchTerm = trimmedInput;
       }
     }, INCIDENT_SEARCH_DELAY),
-  },
-  methods: {
+    filterIncidentsByState(tabIndex) {
+      const { filters, state } = this.$options.stateTabs[tabIndex];
+      this.stateFilter = filters;
+      this.filteredByState = state;
+    },
     hasAssignees(assignees) {
       return Boolean(assignees.nodes?.length);
     },
@@ -183,9 +216,20 @@ export default {
       {{ $options.i18n.errorMsg }}
     </gl-alert>
 
-    <div class="gl-display-flex gl-justify-content-end">
+    <div class="incident-management-list-header gl-display-flex gl-justify-content-space-between">
+      <gl-tabs content-class="gl-p-0" @input="filterIncidentsByState">
+        <gl-tab v-for="tab in $options.stateTabs" :key="tab.state" :data-testid="tab.state">
+          <template slot="title">
+            <span>{{ tab.title }}</span>
+            <gl-badge v-if="incidentsCount" pill size="sm" class="gl-tab-counter-badge">
+              {{ incidentsCount[tab.state.toLowerCase()] }}
+            </gl-badge>
+          </template>
+        </gl-tab>
+      </gl-tabs>
+
       <gl-button
-        class="gl-mt-3 gl-mb-3 create-incident-button"
+        class="gl-my-3 create-incident-button"
         data-testid="createIncidentBtn"
         :loading="redirecting"
         :disabled="redirecting"
@@ -200,9 +244,9 @@ export default {
 
     <div class="gl-bg-gray-10 gl-p-5 gl-border-b-solid gl-border-b-1 gl-border-gray-100">
       <gl-search-box-by-type
-        v-model.trim="searchTerm"
         class="gl-bg-white"
         :placeholder="$options.i18n.searchPlaceholder"
+        @input="onInputChange"
       />
     </div>
 
@@ -221,7 +265,7 @@ export default {
       @row-clicked="navigateToIncidentDetails"
     >
       <template #cell(title)="{ item }">
-        <div class="gl-display-flex gl-justify-content-center">
+        <div class="gl-display-sm-flex gl-align-items-center">
           <div class="gl-max-w-full text-truncate" :title="item.title">{{ item.title }}</div>
           <gl-icon
             v-if="item.state === 'closed'"