uptime-kuma/src/components/PingChart.vue

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<template>
<LineChart :chart-data="chartData" :options="chartOptions" />
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</template>
<script>
import { BarController, BarElement, Chart, Filler, LinearScale, LineController, LineElement, PointElement, TimeScale, Tooltip } from "chart.js";
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import dayjs from "dayjs";
import utc from "dayjs/plugin/utc";
import timezone from "dayjs/plugin/timezone";
import "chartjs-adapter-dayjs";
import { LineChart } from "vue-chart-3";
dayjs.extend(utc);
dayjs.extend(timezone);
Chart.register(LineController, BarController, LineElement, PointElement, TimeScale, BarElement, LinearScale, Tooltip, Filler);
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export default {
components: { LineChart },
props: {
monitorId: {
type: Number,
required: true,
},
},
data() {
return {
// Configurable filtering on top of the returned data
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chartPeriodHrs: 6,
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};
},
computed: {
chartOptions() {
return {
responsive: true,
maintainAspectRatio: false,
onResize: (chart) => {
chart.canvas.parentNode.style.position = "relative";
if (screen.width < 576) {
chart.canvas.parentNode.style.height = "275px";
} else if (screen.width < 768) {
chart.canvas.parentNode.style.height = "320px";
} else if (screen.width < 992) {
chart.canvas.parentNode.style.height = "300px";
} else {
chart.canvas.parentNode.style.height = "250px";
}
},
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layout: {
padding: {
left: 10,
right: 30,
top: 30,
bottom: 10,
},
},
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elements: {
point: {
// Hide points on chart unless mouse-over
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radius: 0,
hitRadius: 100,
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},
},
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scales: {
x: {
type: "time",
time: {
minUnit: "minute",
round: "second",
tooltipFormat: "YYYY-MM-DD HH:mm:ss",
displayFormats: {
minute: "HH:mm",
hour: "MM-DD HH:mm",
}
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},
ticks: {
maxRotation: 0,
autoSkipPadding: 30,
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},
grid: {
color: this.$root.theme === "light" ? "rgba(0,0,0,0.1)" : "rgba(255,255,255,0.1)",
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offset: false,
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},
},
y: {
title: {
display: true,
text: "Resp. Time (ms)",
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},
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offset: false,
grid: {
color: this.$root.theme === "light" ? "rgba(0,0,0,0.1)" : "rgba(255,255,255,0.1)",
},
},
y1: {
display: false,
position: "right",
grid: {
drawOnChartArea: false,
},
min: 0,
max: 1,
offset: false,
},
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},
bounds: "ticks",
plugins: {
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tooltip: {
mode: "nearest",
intersect: false,
padding: 10,
backgroundColor: this.$root.theme === "light" ? "rgba(212,232,222,1.0)" : "rgba(32,42,38,1.0)",
bodyColor: this.$root.theme === "light" ? "rgba(12,12,18,1.0)" : "rgba(220,220,220,1.0)",
titleColor: this.$root.theme === "light" ? "rgba(12,12,18,1.0)" : "rgba(220,220,220,1.0)",
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filter: function (tooltipItem) {
return tooltipItem.datasetIndex === 0; // Hide tooltip on Bar Chart
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},
callbacks: {
label: (context) => {
return ` ${new Intl.NumberFormat().format(context.parsed.y)} ms`
},
}
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},
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legend: {
display: false,
},
},
}
},
chartData() {
let pingData = []; // Ping Data for Line Chart, y-axis contains ping time
let downData = []; // Down Data for Bar Chart, y-axis is 1 if target is down, 0 if target is up
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if (this.monitorId in this.$root.heartbeatList) {
this.$root.heartbeatList[this.monitorId]
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.filter(
(beat) => dayjs.utc(beat.time).tz(this.$root.timezone).isAfter(dayjs().subtract(this.chartPeriodHrs, "hours")))
.map((beat) => {
const x = this.$root.datetime(beat.time);
pingData.push({
x,
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y: beat.ping,
});
downData.push({
x,
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y: beat.status === 0 ? 1 : 0,
})
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});
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}
return {
datasets: [
{
// Line Chart
data: pingData,
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fill: "origin",
tension: 0.2,
borderColor: "#5CDD8B",
backgroundColor: "#5CDD8B38",
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yAxisID: "y",
},
{
// Bar Chart
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type: "bar",
data: downData,
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borderColor: "#00000000",
backgroundColor: "#DC354568",
yAxisID: "y1",
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barThickness: "flex",
barPercentage: 1,
categoryPercentage: 1,
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},
],
};
},
},
};
</script>