Stats Page Foundation with Chart.js

frontend/src/App/AppRoutes.js

@@ -5,6 +5,7 @@ import NotFound from 'Components/NotFound';
 import Switch from 'Components/Router/Switch';
 import HistoryConnector from 'History/HistoryConnector';
 import IndexerIndexConnector from 'Indexer/Index/IndexerIndexConnector';
+import StatsConnector from 'Indexer/Stats/StatsConnector';
 import SearchIndexConnector from 'Search/SearchIndexConnector';
 import ApplicationSettings from 'Settings/Applications/ApplicationSettings';
 import GeneralSettingsConnector from 'Settings/General/GeneralSettingsConnector';
@@ -57,7 +58,7 @@ function AppRoutes(props) {
 
       <Route
         path="/indexers/stats"
-        component={IndexerIndexConnector}
+        component={StatsConnector}
       />
 
       {/*

frontend/src/Components/Chart/BarChart.js

@@ -0,0 +1,50 @@
+import Chart from 'chart.js';
+import PropTypes from 'prop-types';
+import React, { Component } from 'react';
+
+class BarChart extends Component {
+  constructor(props) {
+    super(props);
+    this.canvasRef = React.createRef();
+  }
+
+  componentDidMount() {
+    this.myChart = new Chart(this.canvasRef.current, {
+      type: 'bar',
+      options: {
+        maintainAspectRatio: false
+      },
+      data: {
+        labels: this.props.data.map((d) => d.label),
+        datasets: [{
+          label: this.props.title,
+          data: this.props.data.map((d) => d.value)
+        }]
+      }
+    });
+  }
+
+  componentDidUpdate() {
+    this.myChart.data.labels = this.props.data.map((d) => d.label);
+    this.myChart.data.datasets[0].data = this.props.data.map((d) => d.value);
+    this.myChart.update();
+  }
+
+  render() {
+    return (
+      <canvas ref={this.canvasRef} />
+    );
+  }
+}
+
+BarChart.propTypes = {
+  data: PropTypes.arrayOf(PropTypes.object).isRequired,
+  title: PropTypes.string.isRequired
+};
+
+BarChart.defaultProps = {
+  data: [],
+  title: ''
+};
+
+export default BarChart;

frontend/src/Components/Chart/DoughnutChart.js

@@ -0,0 +1,57 @@
+import Chart from 'chart.js';
+import PropTypes from 'prop-types';
+import React, { Component } from 'react';
+
+class DoughnutChart extends Component {
+  constructor(props) {
+    super(props);
+    this.canvasRef = React.createRef();
+  }
+
+  componentDidMount() {
+    this.myChart = new Chart(this.canvasRef.current, {
+      type: 'doughnut',
+      options: {
+        maintainAspectRatio: false,
+        legend: {
+          position: 'bottom'
+        },
+        title: {
+          display: true,
+          text: this.props.title
+        }
+      },
+      data: {
+        labels: this.props.data.map((d) => d.label),
+        datasets: [{
+          label: this.props.title,
+          data: this.props.data.map((d) => d.value)
+        }]
+      }
+    });
+  }
+
+  componentDidUpdate() {
+    this.myChart.data.labels = this.props.data.map((d) => d.label);
+    this.myChart.data.datasets[0].data = this.props.data.map((d) => d.value);
+    this.myChart.update();
+  }
+
+  render() {
+    return (
+      <canvas ref={this.canvasRef} />
+    );
+  }
+}
+
+DoughnutChart.propTypes = {
+  data: PropTypes.arrayOf(PropTypes.object).isRequired,
+  title: PropTypes.string.isRequired
+};
+
+DoughnutChart.defaultProps = {
+  data: [],
+  title: ''
+};
+
+export default DoughnutChart;

frontend/src/Components/Chart/LineChart.js

@@ -0,0 +1,49 @@
+import Chart from 'chart.js';
+import PropTypes from 'prop-types';
+import React, { Component } from 'react';
+
+class LineChart extends Component {
+  constructor(props) {
+    super(props);
+    this.canvasRef = React.createRef();
+  }
+
+  componentDidMount() {
+    this.myChart = new Chart(this.canvasRef.current, {
+      type: 'line',
+      options: {
+        maintainAspectRatio: false
+      },
+      data: {
+        labels: this.props.data.map((d) => d.time),
+        datasets: [{
+          label: this.props.title,
+          data: this.props.data.map((d) => d.value),
+          fill: 'none',
+          pointRadius: 2,
+          borderWidth: 1,
+          lineTension: 0
+        }]
+      }
+    });
+  }
+
+  componentDidUpdate() {
+    this.myChart.data.labels = this.props.data.map((d) => d.label);
+    this.myChart.data.datasets[0].data = this.props.data.map((d) => d.value);
+    this.myChart.update();
+  }
+
+  render() {
+    return (
+      <canvas ref={this.canvasRef} />
+    );
+  }
+}
+
+LineChart.propTypes = {
+  data: PropTypes.arrayOf(PropTypes.object).isRequired,
+  title: PropTypes.string.isRequired
+};
+
+export default LineChart;

frontend/src/Components/Page/Sidebar/PageSidebar.js

@@ -26,7 +26,7 @@ const links = [
     children: [
       {
         title: translate('Stats'),
-        to: '/indexer/stats'
+        to: '/indexers/stats'
       }
     ]
   },

frontend/src/Indexer/Stats/Stats.css

@@ -0,0 +1,22 @@
+.fullWidthChart {
+  display: inline-block;
+  padding: 15px 25px;
+  width: 100%;
+  height: 300px;
+}
+
+.halfWidthChart {
+  display: inline-block;
+  padding: 15px 25px;
+  width: 50%;
+  height: 300px;
+}
+
+@media only screen and (max-width: $breakpointSmall) {
+  .halfWidthChart {
+    display: inline-block;
+    padding: 15px 25px;
+    width: 100%;
+    height: 300px;
+  }
+}

frontend/src/Indexer/Stats/Stats.js

@@ -0,0 +1,87 @@
+import PropTypes from 'prop-types';
+import React from 'react';
+import BarChart from 'Components/Chart/BarChart';
+import DoughnutChart from 'Components/Chart/DoughnutChart';
+import LoadingIndicator from 'Components/Loading/LoadingIndicator';
+import PageContent from 'Components/Page/PageContent';
+import PageToolbar from 'Components/Page/Toolbar/PageToolbar';
+import getErrorMessage from 'Utilities/Object/getErrorMessage';
+import styles from './Stats.css';
+
+function getAverageResponseTimeData(indexerStats) {
+  const data = indexerStats.map((indexer) => {
+    return {
+      label: indexer.indexerName,
+      value: indexer.averageResponseTime
+    };
+  });
+
+  return data;
+}
+
+function getTotalRequestsData(indexerStats) {
+  const data = indexerStats.map((indexer) => {
+    return {
+      label: indexer.indexerName,
+      value: indexer.numberOfQueries
+    };
+  });
+
+  return data;
+}
+
+function Stats(props) {
+  const {
+    items,
+    isFetching,
+    isPopulated,
+    error
+  } = props;
+
+  const isLoaded = !!(!error && isPopulated && items.length);
+
+  return (
+    <PageContent>
+      <PageToolbar />
+      {
+        isFetching && !isPopulated &&
+          <LoadingIndicator />
+      }
+
+      {
+        !isFetching && !!error &&
+          <div className={styles.errorMessage}>
+            {getErrorMessage(error, 'Failed to load indexer stats from API')}
+          </div>
+      }
+
+      {
+        isLoaded &&
+          <div>
+            <div className={styles.fullWidthChart}>
+              <BarChart
+                data={getAverageResponseTimeData(items)}
+                title='Average Response Times (ms)'
+              />
+            </div>
+            <div className={styles.halfWidthChart}>
+              <DoughnutChart
+                data={getTotalRequestsData(items)}
+                title='Total Indexer Queries'
+              />
+            </div>
+          </div>
+      }
+    </PageContent>
+  );
+}
+
+Stats.propTypes = {
+  items: PropTypes.arrayOf(PropTypes.object).isRequired,
+  isFetching: PropTypes.bool.isRequired,
+  isPopulated: PropTypes.bool.isRequired,
+  error: PropTypes.object,
+  data: PropTypes.object
+};
+
+export default Stats;

frontend/src/Indexer/Stats/StatsConnector.js

@@ -0,0 +1,44 @@
+import PropTypes from 'prop-types';
+import React, { Component } from 'react';
+import { connect } from 'react-redux';
+import { createSelector } from 'reselect';
+import { fetchIndexerStats } from 'Store/Actions/indexerStatsActions';
+import Stats from './Stats';
+
+function createMapStateToProps() {
+  return createSelector(
+    (state) => state.indexerStats,
+    (indexerStats) => indexerStats
+  );
+}
+
+const mapDispatchToProps = {
+  dispatchFetchIndexers: fetchIndexerStats
+};
+
+class StatsConnector extends Component {
+
+  //
+  // Lifecycle
+
+  componentDidMount() {
+    this.props.dispatchFetchIndexers();
+  }
+
+  //
+  // Render
+
+  render() {
+    return (
+      <Stats
+        {...this.props}
+      />
+    );
+  }
+}
+
+StatsConnector.propTypes = {
+  dispatchFetchIndexers: PropTypes.func.isRequired
+};
+
+export default connect(createMapStateToProps, mapDispatchToProps)(StatsConnector);

frontend/src/Store/Actions/index.js

@@ -5,6 +5,7 @@ import * as customFilters from './customFilterActions';
 import * as history from './historyActions';
 import * as indexers from './indexerActions';
 import * as indexerIndex from './indexerIndexActions';
+import * as indexerStats from './indexerStatsActions';
 import * as movies from './movieActions';
 import * as oAuth from './oAuthActions';
 import * as paths from './pathActions';
@@ -27,6 +28,7 @@ export default [
   movies,
   indexers,
   indexerIndex,
+  indexerStats,
   settings,
   system,
   tags

frontend/src/Store/Actions/indexerStatsActions.js

@@ -0,0 +1,46 @@
+import { createThunk, handleThunks } from 'Store/thunks';
+import createFetchHandler from './Creators/createFetchHandler';
+import createHandleActions from './Creators/createHandleActions';
+
+//
+// Variables
+
+export const section = 'indexerStats';
+
+//
+// State
+
+export const defaultState = {
+  isFetching: false,
+  isPopulated: false,
+  error: null,
+  items: [],
+
+  details: {
+    isFetching: false,
+    isPopulated: false,
+    error: null,
+    items: []
+  }
+};
+
+//
+// Actions Types
+
+export const FETCH_INDEXER_STATS = 'indexerStats/fetchIndexerStats';
+
+//
+// Action Creators
+
+export const fetchIndexerStats = createThunk(FETCH_INDEXER_STATS);
+
+//
+// Action Handlers
+
+export const actionHandlers = handleThunks({
+  [FETCH_INDEXER_STATS]: createFetchHandler(section, '/indexerStats')
+});
+
+//
+// Reducers
+export const reducers = createHandleActions({}, defaultState, section);