Set up Engine subnav in EuiSideNav format

+ tweak CSS for new label - heads up that this will break the old nav, but will disappear as the pages get converted

x-pack/plugins/enterprise_search/public/applications/app_search/components/engine/engine_nav.scss

@@ -6,21 +6,15 @@
  */
 
 .appSearchNavEngineLabel {
-  padding-top: $euiSizeS;
+  margin-left: $euiSizeS;
+  padding-top: $euiSizeXS;
   padding-bottom: $euiSizeS;
 
-  .euiText {
-    font-weight: $euiFontWeightMedium;
-  }
   .euiBadge {
     margin-top: $euiSizeXS;
   }
 }
 
-.appSearchNavIcons {
-  // EUI override
-  &.euiFlexItem {
-    flex-grow: 0;
-    flex-direction: row;
-  }
+.appSearchNavIcon {
+  order: 1;
 }

x-pack/plugins/enterprise_search/public/applications/app_search/components/engine/engine_nav.test.tsx

@@ -6,8 +6,14 @@
  */
 
 import { setMockValues } from '../../../__mocks__/kea_logic';
+import { mockUseRouteMatch } from '../../../__mocks__/react_router';
 import { mockEngineValues } from '../../__mocks__';
 
+jest.mock('../../../shared/layout', () => ({
+  ...jest.requireActual('../../../shared/layout'), // TODO: Remove once side nav components are gone
+  generateNavLink: jest.fn(({ to }) => ({ href: to })),
+}));
+
 import React from 'react';
 
 import { shallow } from 'enzyme';
@@ -16,7 +22,305 @@ import { EuiBadge, EuiIcon } from '@elastic/eui';
 
 import { rerender } from '../../../test_helpers';
 
-import { EngineNav } from './engine_nav';
+import { useEngineNav, EngineNav } from './engine_nav';
+
+describe('useEngineNav', () => {
+  const values = { ...mockEngineValues, myRole: {}, dataLoading: false };
+
+  beforeEach(() => {
+    setMockValues(values);
+    mockUseRouteMatch.mockReturnValue(true);
+  });
+
+  describe('returns empty', () => {
+    it('does not return engine nav items if not on an engine route', () => {
+      mockUseRouteMatch.mockReturnValueOnce(false);
+      expect(useEngineNav()).toBeUndefined();
+    });
+
+    it('does not return engine nav items if data is still loading', () => {
+      setMockValues({ ...values, dataLoading: true });
+      expect(useEngineNav()).toBeUndefined();
+    });
+
+    it('does not return engine nav items if engine data is missing', () => {
+      setMockValues({ ...values, engineName: '' });
+      expect(useEngineNav()).toBeUndefined();
+    });
+  });
+
+  describe('returns an array of EUI side nav items', () => {
+    const BASE_NAV = [
+      {
+        id: 'engineName',
+        name: 'some-engine',
+        renderItem: expect.any(Function),
+        'data-test-subj': 'EngineLabel',
+      },
+      {
+        id: 'overview',
+        name: 'Overview',
+        href: '/engines/some-engine',
+        'data-test-subj': 'EngineOverviewLink',
+      },
+    ];
+
+    it('always returns an engine label and overview link', () => {
+      expect(useEngineNav()).toEqual(BASE_NAV);
+    });
+
+    describe('engine label', () => {
+      const renderEngineLabel = (engineNav: any) => {
+        return shallow(engineNav[0].renderItem() as any);
+      };
+
+      it('renders the capitalized engine name', () => {
+        const wrapper = renderEngineLabel(useEngineNav());
+        const name = wrapper.find('.eui-textTruncate');
+
+        expect(name.text()).toEqual('SOME-ENGINE');
+        expect(wrapper.find(EuiBadge)).toHaveLength(0);
+      });
+
+      it('renders a sample engine badge for the sample engine', () => {
+        setMockValues({ ...values, isSampleEngine: true });
+        const wrapper = renderEngineLabel(useEngineNav());
+
+        expect(wrapper.find(EuiBadge).prop('children')).toEqual('SAMPLE ENGINE');
+      });
+
+      it('renders a meta engine badge for meta engines', () => {
+        setMockValues({ ...values, isMetaEngine: true });
+        const wrapper = renderEngineLabel(useEngineNav());
+
+        expect(wrapper.find(EuiBadge).prop('children')).toEqual('META ENGINE');
+      });
+    });
+
+    it('returns an analytics nav item', () => {
+      setMockValues({ ...values, myRole: { canViewEngineAnalytics: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'analytics',
+          name: 'Analytics',
+          href: '/engines/some-engine/analytics',
+          'data-test-subj': 'EngineAnalyticsLink',
+        },
+      ]);
+    });
+
+    it('returns a documents nav item', () => {
+      setMockValues({ ...values, myRole: { canViewEngineDocuments: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'documents',
+          name: 'Documents',
+          href: '/engines/some-engine/documents',
+          'data-test-subj': 'EngineDocumentsLink',
+        },
+      ]);
+    });
+
+    it('returns a schema nav item', () => {
+      setMockValues({ ...values, myRole: { canViewEngineSchema: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'schema',
+          name: 'Schema',
+          href: '/engines/some-engine/schema',
+          'data-test-subj': 'EngineSchemaLink',
+          icon: expect.anything(),
+        },
+      ]);
+    });
+
+    describe('schema nav icons', () => {
+      const myRole = { canViewEngineSchema: true };
+
+      const renderIcons = (engineNav: any) => {
+        return shallow(<div>{engineNav[2].icon}</div>);
+      };
+
+      it('renders schema errors alert icon', () => {
+        setMockValues({ ...values, myRole, hasSchemaErrors: true });
+        const wrapper = renderIcons(useEngineNav());
+
+        expect(wrapper.find('[data-test-subj="EngineNavSchemaErrors"]')).toHaveLength(1);
+      });
+
+      it('renders unconfirmed schema fields info icon', () => {
+        setMockValues({ ...values, myRole, hasUnconfirmedSchemaFields: true });
+        const wrapper = renderIcons(useEngineNav());
+
+        expect(wrapper.find('[data-test-subj="EngineNavSchemaUnconfirmedFields"]')).toHaveLength(1);
+      });
+
+      it('renders schema conflicts alert icon', () => {
+        setMockValues({ ...values, myRole, hasSchemaConflicts: true });
+        const wrapper = renderIcons(useEngineNav());
+
+        expect(wrapper.find('[data-test-subj="EngineNavSchemaConflicts"]')).toHaveLength(1);
+      });
+    });
+
+    describe('crawler', () => {
+      const myRole = { canViewEngineCrawler: true };
+
+      it('returns a crawler nav item', () => {
+        setMockValues({ ...values, myRole });
+        expect(useEngineNav()).toEqual([
+          ...BASE_NAV,
+          {
+            id: 'crawler',
+            name: 'Web Crawler',
+            href: '/engines/some-engine/crawler',
+            'data-test-subj': 'EngineCrawlerLink',
+          },
+        ]);
+      });
+
+      it('does not return a crawler nav item for meta engines', () => {
+        setMockValues({ ...values, myRole, isMetaEngine: true });
+        expect(useEngineNav()).toEqual(BASE_NAV);
+      });
+    });
+
+    describe('meta engine source engines', () => {
+      const myRole = { canViewMetaEngineSourceEngines: true };
+
+      it('returns a source engines nav item', () => {
+        setMockValues({ ...values, myRole, isMetaEngine: true });
+        expect(useEngineNav()).toEqual([
+          ...BASE_NAV,
+          {
+            id: 'sourceEngines',
+            name: 'Engines',
+            href: '/engines/some-engine/engines',
+            'data-test-subj': 'MetaEngineEnginesLink',
+          },
+        ]);
+      });
+
+      it('does not return a source engines nav item for non-meta engines', () => {
+        setMockValues({ ...values, myRole, isMetaEngine: false });
+        expect(useEngineNav()).toEqual(BASE_NAV);
+      });
+    });
+
+    it('returns a relevance tuning nav item', () => {
+      setMockValues({ ...values, myRole: { canManageEngineRelevanceTuning: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'relevanceTuning',
+          name: 'Relevance Tuning',
+          href: '/engines/some-engine/relevance_tuning',
+          'data-test-subj': 'EngineRelevanceTuningLink',
+          icon: expect.anything(),
+        },
+      ]);
+    });
+
+    describe('relevance tuning nav icons', () => {
+      const myRole = { canManageEngineRelevanceTuning: true };
+
+      const renderIcons = (engineNav: any) => {
+        return shallow(<div>{engineNav[2].icon}</div>);
+      };
+
+      it('renders unconfirmed schema fields info icon', () => {
+        setMockValues({ ...values, myRole, engine: { unsearchedUnconfirmedFields: true } });
+        const wrapper = renderIcons(useEngineNav());
+        expect(
+          wrapper.find('[data-test-subj="EngineNavRelevanceTuningUnsearchedFields"]')
+        ).toHaveLength(1);
+      });
+
+      it('renders schema conflicts alert icon', () => {
+        setMockValues({ ...values, myRole, engine: { invalidBoosts: true } });
+        const wrapper = renderIcons(useEngineNav());
+        expect(
+          wrapper.find('[data-test-subj="EngineNavRelevanceTuningInvalidBoosts"]')
+        ).toHaveLength(1);
+      });
+
+      it('can render multiple icons', () => {
+        const engine = { invalidBoosts: true, unsearchedUnconfirmedFields: true };
+        setMockValues({ ...values, myRole, engine });
+        const wrapper = renderIcons(useEngineNav());
+        expect(wrapper.find(EuiIcon)).toHaveLength(2);
+      });
+    });
+
+    it('returns a synonyms nav item', () => {
+      setMockValues({ ...values, myRole: { canManageEngineSynonyms: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'synonyms',
+          name: 'Synonyms',
+          href: '/engines/some-engine/synonyms',
+          'data-test-subj': 'EngineSynonymsLink',
+        },
+      ]);
+    });
+
+    it('returns a curations nav item', () => {
+      setMockValues({ ...values, myRole: { canManageEngineCurations: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'curations',
+          name: 'Curations',
+          href: '/engines/some-engine/curations',
+          'data-test-subj': 'EngineCurationsLink',
+        },
+      ]);
+    });
+
+    it('returns a results settings nav item', () => {
+      setMockValues({ ...values, myRole: { canManageEngineResultSettings: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'resultSettings',
+          name: 'Result Settings',
+          href: '/engines/some-engine/result_settings',
+          'data-test-subj': 'EngineResultSettingsLink',
+        },
+      ]);
+    });
+
+    it('returns a Search UI nav item', () => {
+      setMockValues({ ...values, myRole: { canManageEngineSearchUi: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'searchUI',
+          name: 'Search UI',
+          href: '/engines/some-engine/search_ui',
+          'data-test-subj': 'EngineSearchUILink',
+        },
+      ]);
+    });
+
+    it('returns an API logs nav item', () => {
+      setMockValues({ ...values, myRole: { canViewEngineApiLogs: true } });
+      expect(useEngineNav()).toEqual([
+        ...BASE_NAV,
+        {
+          id: 'apiLogs',
+          name: 'API Logs',
+          href: '/engines/some-engine/api_logs',
+          'data-test-subj': 'EngineAPILogsLink',
+        },
+      ]);
+    });
+  });
+});
 
 describe('EngineNav', () => {
   const values = { ...mockEngineValues, myRole: {}, dataLoading: false };