96 lines
2.1 KiB
JavaScript
96 lines
2.1 KiB
JavaScript
import React, { useState, useMemo, useRef, useEffect } from 'react';
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import ChartJS from 'chart.js';
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import { get } from 'lib/web';
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import { getTimezone, getLocalTime } from 'lib/date';
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export default function Chart({ websiteId, startDate, endDate }) {
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const [data, setData] = useState();
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const canvas = useRef();
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const chart = useRef();
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const metrics = useMemo(() => {
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if (data) {
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return data.pageviews.map(({ t, y }) => ({ t: getLocalTime(t), y }));
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}
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}, [data]);
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console.log(metrics);
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async function loadData() {
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setData(
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await get(`/api/website/${websiteId}/pageviews`, {
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start_at: +startDate,
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end_at: +endDate,
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tz: getTimezone(),
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}),
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);
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}
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function draw() {
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if (!chart.current && canvas.current) {
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chart.current = new ChartJS(canvas.current, {
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type: 'bar',
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data: {
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datasets: [
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{
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label: 'page views',
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data: Object.values(metrics),
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lineTension: 0,
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backgroundColor: 'rgb(38, 128, 235, 0.1)',
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borderColor: 'rgb(13, 102, 208, 0.2)',
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borderWidth: 1,
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},
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],
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},
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options: {
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animation: {
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duration: 300,
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},
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tooltips: {
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intersect: false,
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},
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hover: {
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animationDuration: 0,
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},
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scales: {
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xAxes: [
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{
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type: 'time',
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distribution: 'series',
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offset: true,
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time: {
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displayFormats: {
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day: 'ddd M/DD',
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},
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tooltipFormat: 'ddd M/DD hA',
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},
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},
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],
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yAxes: [
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{
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ticks: {
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beginAtZero: true,
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},
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},
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],
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},
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},
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});
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}
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}
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useEffect(() => {
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loadData();
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}, []);
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useEffect(() => {
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if (metrics) {
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draw();
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}
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}, [metrics]);
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return (
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<div>
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<canvas ref={canvas} width={960} height={400} />
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</div>
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);
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}
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