Feat UI metrics search (#9629)

* feat: add search to metrics explorer

Signed-off-by: mtfoley <mtfoley.mae@gmail.com>

* fix: ui-lint and ui-build errors

Signed-off-by: mtfoley <mtfoley.mae@gmail.com>

* feat: use @nexucis/fuzzy

Signed-off-by: mtfoley <mtfoley.mae@gmail.com>

* chore: code style and delete commented test

Signed-off-by: mtfoley <mtfoley.mae@gmail.com>

* rename Props to MetricsExplorerProps

Signed-off-by: mtfoley <mtfoley.mae@gmail.com>

web/ui/react-app/src/pages/graph/MetricsExplorer.test.tsx

@@ -0,0 +1,46 @@
+import * as React from 'react';
+import { mount, ReactWrapper } from 'enzyme';
+import MetricsExplorer from './MetricsExplorer';
+import { Input } from 'reactstrap';
+
+describe('MetricsExplorer', () => {
+  const spyInsertAtCursor = jest.fn().mockImplementation((value: string) => {
+    value = value;
+  });
+  const metricsExplorerProps = {
+    show: true,
+    updateShow: (show: boolean): void => {
+      show = show;
+    },
+    metrics: ['go_test_1', 'prometheus_test_1'],
+    insertAtCursor: spyInsertAtCursor,
+  };
+
+  let metricsExplorer: ReactWrapper;
+  beforeEach(() => {
+    metricsExplorer = mount(<MetricsExplorer {...metricsExplorerProps} />);
+  });
+
+  it('renders an Input[type=text]', () => {
+    const input = metricsExplorer.find(Input);
+    expect(input.prop('type')).toEqual('text');
+  });
+
+  it('lists all metrics in props', () => {
+    const metrics = metricsExplorer.find('.metric');
+    expect(metrics).toHaveLength(metricsExplorerProps.metrics.length);
+  });
+
+  it('filters metrics with search', () => {
+    const input = metricsExplorer.find(Input);
+    input.simulate('change', { target: { value: 'go' } });
+    const metrics = metricsExplorer.find('.metric');
+    expect(metrics).toHaveLength(1);
+  });
+
+  it('handles click on metric', () => {
+    const metric = metricsExplorer.find('.metric').at(0);
+    metric.simulate('click');
+    expect(metricsExplorerProps.insertAtCursor).toHaveBeenCalled();
+  });
+});

web/ui/react-app/src/pages/graph/MetricsExplorer.tsx

@@ -1,33 +1,60 @@
-import React, { Component } from 'react';
-import { Modal, ModalBody, ModalHeader } from 'reactstrap';
+import React, { Component, ChangeEvent } from 'react';
+import { Modal, ModalBody, ModalHeader, Input } from 'reactstrap';
+import { Fuzzy, FuzzyResult } from '@nexucis/fuzzy';
 
-interface Props {
+const fuz = new Fuzzy({ pre: '<strong>', post: '</strong>', shouldSort: true });
+
+interface MetricsExplorerProps {
   show: boolean;
   updateShow(show: boolean): void;
   metrics: string[];
   insertAtCursor(value: string): void;
 }
 
-class MetricsExplorer extends Component<Props> {
+type MetricsExplorerState = {
+  searchTerm: string;
+};
+
+class MetricsExplorer extends Component<MetricsExplorerProps, MetricsExplorerState> {
+  constructor(props: MetricsExplorerProps) {
+    super(props);
+    this.state = { searchTerm: '' };
+  }
+  handleSearchTerm = (event: ChangeEvent<HTMLInputElement>): void => {
+    this.setState({ searchTerm: event.target.value });
+  };
   handleMetricClick = (query: string): void => {
     this.props.insertAtCursor(query);
     this.props.updateShow(false);
+    this.setState({ searchTerm: '' });
   };
 
   toggle = (): void => {
     this.props.updateShow(!this.props.show);
   };
-
   render(): JSX.Element {
     return (
-      <Modal isOpen={this.props.show} toggle={this.toggle} className="metrics-explorer">
+      <Modal isOpen={this.props.show} toggle={this.toggle} className="metrics-explorer" scrollable>
         <ModalHeader toggle={this.toggle}>Metrics Explorer</ModalHeader>
         <ModalBody>
-          {this.props.metrics.map((metric) => (
-            <p key={metric} className="metric" onClick={this.handleMetricClick.bind(this, metric)}>
-              {metric}
-            </p>
-          ))}
+          <Input placeholder="Search" value={this.state.searchTerm} type="text" onChange={this.handleSearchTerm} />
+          {this.state.searchTerm.length > 0 &&
+            fuz
+              .filter(this.state.searchTerm, this.props.metrics)
+              .map((result: FuzzyResult) => (
+                <p
+                  key={result.original}
+                  className="metric"
+                  onClick={this.handleMetricClick.bind(this, result.original)}
+                  dangerouslySetInnerHTML={{ __html: result.rendered }}
+                ></p>
+              ))}
+          {this.state.searchTerm.length === 0 &&
+            this.props.metrics.map((metric) => (
+              <p key={metric} className="metric" onClick={this.handleMetricClick.bind(this, metric)}>
+                {metric}
+              </p>
+            ))}
         </ModalBody>
       </Modal>
     );