Updated to react-chartjs 4

package-lock.json

@@ -27,7 +27,7 @@
         "qs": "^6.9.6",
         "ramda": "^0.27.2",
         "react": "^18.1.0",
-        "react-chartjs-2": "^3.3.0",
+        "react-chartjs-2": "^4.1.0",
         "react-colorful": "^5.5.1",
         "react-copy-to-clipboard": "^5.0.4",
         "react-datepicker": "^4.7.0",
@@ -19110,12 +19110,12 @@
       }
     },
     "node_modules/react-chartjs-2": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/react-chartjs-2/-/react-chartjs-2-3.3.0.tgz",
-      "integrity": "sha512-4Mt0SR2aiUbWi/4762odRBYSnbNKSs4HWc0o3IW43py5bMfmfpeZU95w6mbvtuLZH/M3GsPJMU8DvDc+5U9blQ==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/react-chartjs-2/-/react-chartjs-2-4.1.0.tgz",
+      "integrity": "sha512-AsUihxEp8Jm1oBhbEovE+w50m9PVNhz1sfwEIT4hZduRC0m14gHWHd0cUaxkFDb8HNkdMIGzsNlmVqKiOpU74g==",
       "peerDependencies": {
         "chart.js": "^3.5.0",
-        "react": "^16.8.0 || ^17.0.0"
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0"
       }
     },
     "node_modules/react-colorful": {
@@ -41617,9 +41617,9 @@
       }
     },
     "react-chartjs-2": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/react-chartjs-2/-/react-chartjs-2-3.3.0.tgz",
-      "integrity": "sha512-4Mt0SR2aiUbWi/4762odRBYSnbNKSs4HWc0o3IW43py5bMfmfpeZU95w6mbvtuLZH/M3GsPJMU8DvDc+5U9blQ==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/react-chartjs-2/-/react-chartjs-2-4.1.0.tgz",
+      "integrity": "sha512-AsUihxEp8Jm1oBhbEovE+w50m9PVNhz1sfwEIT4hZduRC0m14gHWHd0cUaxkFDb8HNkdMIGzsNlmVqKiOpU74g==",
       "requires": {}
     },
     "react-colorful": {

package.json

@@ -43,7 +43,7 @@
     "qs": "^6.9.6",
     "ramda": "^0.27.2",
     "react": "^18.1.0",
-    "react-chartjs-2": "^3.3.0",
+    "react-chartjs-2": "^4.1.0",
     "react-colorful": "^5.5.1",
     "react-copy-to-clipboard": "^5.0.4",
     "react-datepicker": "^4.7.0",

src/index.tsx

@@ -6,6 +6,7 @@ import { container } from './container';
 import { store } from './container/store';
 import { fixLeafletIcons } from './utils/helpers/leaflet';
 import { register as registerServiceWorker } from './serviceWorkerRegistration';
+import 'chart.js/auto'; // TODO Import specific ones to reduce bundle size https://react-chartjs-2.js.org/docs/migration-to-v4/#tree-shaking
 import 'react-datepicker/dist/react-datepicker.css';
 import 'leaflet/dist/leaflet.css';
 import './index.scss';

src/visits/charts/HorizontalBarChart.tsx

@@ -1,7 +1,7 @@
-import { FC } from 'react';
-import { ChartData, ChartDataset, ChartOptions } from 'chart.js';
+import { FC, MutableRefObject, useRef } from 'react';
+import { ChartData, ChartDataset, ChartOptions, InteractionItem } from 'chart.js';
 import { keys, values } from 'ramda';
-import { Bar } from 'react-chartjs-2';
+import { Bar, getElementAtEvent } from 'react-chartjs-2';
 import { fillTheGaps } from '../../utils/helpers/visits';
 import { pointerOnHover, renderChartLabel } from '../../utils/helpers/charts';
 import { prettify } from '../../utils/helpers/numbers';
@@ -57,8 +57,7 @@ const generateChartData = (
   datasets: generateChartDatasets(data, highlightedData, highlightedLabel),
 });
 
-type ClickedCharts = [{ index: number }] | [];
-const chartElementAtEvent = (labels: string[], onClick?: (label: string) => void) => ([chart]: ClickedCharts) => {
+const chartElementAtEvent = (labels: string[], [chart]: InteractionItem[], onClick?: (label: string) => void) => {
   if (!onClick || !chart) {
     return;
   }
@@ -80,6 +79,8 @@ export const HorizontalBarChart: FC<HorizontalBarChartProps> = (
     }, { ...stats }),
   );
   const highlightedData = fillTheGaps(highlightedStats ?? {}, labels);
+  const refWithStats = useRef(null);
+  const refWithoutStats = useRef(null);
 
   const options: ChartOptions = {
     plugins: {
@@ -110,13 +111,14 @@ export const HorizontalBarChart: FC<HorizontalBarChartProps> = (
   const height = determineHeight(labels);
 
   // Provide a key based on the height, to force re-render every time the dataset changes (example, due to pagination)
-  const renderChartComponent = (customKey: string) => (
+  const renderChartComponent = (customKey: string, theRef: MutableRefObject<any>) => (
     <Bar
+      ref={theRef}
       key={`${height}_${customKey}`}
       data={chartData as any}
       options={options as any}
       height={height}
-      getElementAtEvent={chartElementAtEvent(labels, onClick) as any}
+      onClick={(e) => chartElementAtEvent(labels, getElementAtEvent(theRef.current, e), onClick)}
     />
   );
 
@@ -124,8 +126,8 @@ export const HorizontalBarChart: FC<HorizontalBarChartProps> = (
     <>
       {/* It's VERY IMPORTANT to render two different components here, as one has 1 dataset and the other has 2 */}
       {/* Using the same component causes a crash when switching from 1 to 2 datasets, and then back to 1 dataset */}
-      {highlightedStats !== undefined && renderChartComponent('with_stats')}
-      {highlightedStats === undefined && renderChartComponent('without_stats')}
+      {highlightedStats !== undefined && renderChartComponent('with_stats', refWithStats)}
+      {highlightedStats === undefined && renderChartComponent('without_stats', refWithoutStats)}
     </>
   );
 };

src/visits/charts/LineChartCard.tsx

@@ -1,4 +1,4 @@
-import { useState, useMemo } from 'react';
+import { useState, useMemo, MutableRefObject, useRef } from 'react';
 import {
   Card,
   CardHeader,
@@ -8,7 +8,7 @@ import {
   DropdownMenu,
   DropdownItem,
 } from 'reactstrap';
-import { Line } from 'react-chartjs-2';
+import { getElementAtEvent, Line } from 'react-chartjs-2';
 import { always, cond, countBy, reverse } from 'ramda';
 import {
   add,
@@ -21,7 +21,7 @@ import {
   startOfISOWeek,
   endOfISOWeek,
 } from 'date-fns';
-import { ChartData, ChartDataset, ChartOptions } from 'chart.js';
+import { ChartData, ChartDataset, ChartOptions, InteractionItem } from 'chart.js';
 import { NormalizedVisit, Stats } from '../types';
 import { fillTheGaps } from '../../utils/helpers/visits';
 import { useToggle } from '../../utils/helpers/hooks';
@@ -148,8 +148,9 @@ let selectedLabel: string | null = null;
 const chartElementAtEvent = (
   labels: string[],
   datasetsByPoint: Record<string, NormalizedVisit[]>,
+  [chart]: InteractionItem[],
   setSelectedVisits?: (visits: NormalizedVisit[]) => void,
-) => ([chart]: [{ index: number }]) => {
+) => {
   if (!setSelectedVisits || !chart) {
     return;
   }
@@ -160,7 +161,7 @@ const chartElementAtEvent = (
     setSelectedVisits([]);
     selectedLabel = null;
   } else {
-    setSelectedVisits(labels[index] ? datasetsByPoint[labels[index]] : []);
+    setSelectedVisits(labels[index] && datasetsByPoint[labels[index]] ? datasetsByPoint[labels[index]] : []);
     selectedLabel = labels[index] ?? null;
   }
 };
@@ -172,6 +173,8 @@ const LineChartCard = (
     visits.length > 0 ? determineInitialStep(visits[visits.length - 1].date) : 'monthly',
   );
   const [skipNoVisits, toggleSkipNoVisits] = useToggle(true);
+  const refWithHighlightedVisits = useRef(null);
+  const refWithoutHighlightedVisits = useRef(null);
 
   const datasetsByPoint = useMemo(() => visitsToDatasetGroups(step, visits), [step, visits]);
   const groupedVisitsWithGaps = useMemo(() => groupVisitsByStep(step, reverse(visits)), [step, visits]);
@@ -220,11 +223,13 @@ const LineChartCard = (
     },
     onHover: pointerOnHover,
   };
-  const renderLineChart = () => (
+  const renderLineChart = (theRef: MutableRefObject<any>) => (
     <Line
+      ref={theRef}
       data={generateChartData() as any}
       options={options as any}
-      getElementAtEvent={chartElementAtEvent(labels, datasetsByPoint, setSelectedVisits) as any}
+      onClick={(e) =>
+        chartElementAtEvent(labels, datasetsByPoint, getElementAtEvent(theRef.current, e), setSelectedVisits)}
     />
   );
 
@@ -255,8 +260,8 @@ const LineChartCard = (
       <CardBody className="line-chart-card__body">
         {/* It's VERY IMPORTANT to render two different components here, as one has 1 dataset and the other has 2 */}
         {/* Using the same component causes a crash when switching from 1 to 2 datasets, and then back to 1 dataset */}
-        {highlightedVisits.length > 0 && renderLineChart()}
-        {highlightedVisits.length === 0 && renderLineChart()}
+        {highlightedVisits.length > 0 && renderLineChart(refWithHighlightedVisits)}
+        {highlightedVisits.length === 0 && renderLineChart(refWithoutHighlightedVisits)}
       </CardBody>
     </Card>
   );