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import React, { useEffect } from 'react';
import prettyBytes from 'm/pretty-bytes';
import { fetchData } from '../api/traffic';
import { unstable_createResource as createResource } from 'react-cache';
import { useStoreState } from 'm/store';
import { getClashAPIConfig, getTheme } from 'd/app';
// const delay = ms => new Promise(r => setTimeout(r, ms));
const chartJSResource = createResource(() => {
return import(/* webpackChunkName: "chartjs" */
/* webpackPrefetch: true */
/* webpackPreload: true */
'chart.js/dist/Chart.min.js').then(c => c.default);
});
const colorCombo = {
0: {
down: {
backgroundColor: 'rgba(176, 209, 132, 0.8)',
borderColor: 'rgb(176, 209, 132)'
},
up: {
backgroundColor: 'rgba(181, 220, 231, 0.8)',
borderColor: 'rgb(181, 220, 231)'
}
},
1: {
up: {
backgroundColor: 'rgba(242, 174, 62, 0.3)',
borderColor: 'rgb(242, 174, 62)'
},
down: {
backgroundColor: 'rgba(69, 154, 248, 0.3)',
borderColor: 'rgb(69, 154, 248)'
}
},
2: {
up: {
backgroundColor: 'rgba(94, 175, 223, 0.3)',
borderColor: 'rgb(94, 175, 223)'
},
down: {
backgroundColor: 'rgba(139, 227, 195, 0.3)',
borderColor: 'rgb(139, 227, 195)'
}
}
};
const commonDataSetProps = {
borderWidth: 1,
// lineTension: 0,
pointRadius: 0
};
function getUploadProps(theme = 'dark') {
const i = theme === 'dark' ? '0' : '2';
return {
...commonDataSetProps,
...colorCombo[i].up,
label: 'Up'
};
}
function getDownloadProps(theme = 'dark') {
const i = theme === 'dark' ? '0' : '2';
return {
...commonDataSetProps,
...colorCombo[i].down,
label: 'Down'
};
}
const options = {
responsive: true,
maintainAspectRatio: true,
title: {
display: false
},
legend: {
display: true,
position: 'top',
labels: {
fontColor: '#ccc',
boxWidth: 20
}
},
tooltips: {
// it's hard to follow the tooltip while the data is streaming
// so disable it for now
enabled: false,
mode: 'index',
intersect: false,
animationDuration: 100
// callbacks: {
// label(tooltipItem, data) {
// console.log(tooltipItem);
// const { datasetIndex, yLabel } = tooltipItem;
// const l = data.datasets[tooltipItem.datasetIndex].label;
// console.log(yLabel);
// const b = prettyBytes(parseInt(yLabel, 10));
// return l + b;
// }
// }
},
hover: {
mode: 'nearest',
intersect: true
},
scales: {
xAxes: [
{
display: false,
gridLines: {
display: false
}
}
],
yAxes: [
{
display: true,
gridLines: {
display: true,
color: '#555',
borderDash: [3, 6],
drawBorder: false
},
ticks: {
callback(value) {
return prettyBytes(value) + '/s ';
}
}
}
]
}
};
const chartWrapperStyle = {
// make chartjs chart responsive
position: 'relative',
width: '90%'
};
export default function TrafficChart() {
const Chart = chartJSResource.read();
const { hostname, port, secret } = useStoreState(getClashAPIConfig);
const theme = useStoreState(getTheme);
useEffect(
() => {
const ctx = document.getElementById('trafficChart').getContext('2d');
const traffic = fetchData({ hostname, port, secret });
const upProps = getUploadProps(theme);
const downProps = getDownloadProps(theme);
const data = {
labels: traffic.labels,
datasets: [
{
...upProps,
data: traffic.up
},
{
...downProps,
data: traffic.down
}
]
};
const c = new Chart(ctx, {
type: 'line',
data,
options
});
const unsubscribe = traffic.subscribe(() => c.update());
return () => {
unsubscribe();
c.destroy();
};
},
[hostname, port, secret, theme]
);
return (
<div style={chartWrapperStyle}>
<canvas id="trafficChart" />
</div>
);
}
|
