74 lines
No EOL
2.3 KiB
JavaScript
74 lines
No EOL
2.3 KiB
JavaScript
import chart from 'chart.js'
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let graphIndexCounter = 0;
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class NtpGraph extends HTMLElement {
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constructor() {
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super();
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let ip = this.getAttribute("data-server-ip");
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this.innerHTML = `
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<span id="${graphIndexCounter}-Banner" data-index="${graphIndexCounter}" class="ntpBanner">${ip}</span>
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<span id="${graphIndexCounter}-Content" class="ntpContent">
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<a target="_blank" href="https://www.ntppool.org/scores/${ip}" class="linkToNtpPool">Server auf dem NTP Pool anzeigen</a>
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<canvas id="${graphIndexCounter}-Delay"></canvas>
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<canvas id="${graphIndexCounter}-Score"></canvas>
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</span>
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`;
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let currentIndex = graphIndexCounter;
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graphIndexCounter++;
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let xhr = new XMLHttpRequest();
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xhr.onreadystatechange = () => {
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if(xhr.status === 200 && xhr.readyState === 4){
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let rawData = JSON.parse(xhr.responseText);
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let x = [];
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let yScore = [];
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let yDelay = [];
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rawData["history"].forEach((entry, index) => {
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let date = new Date(entry["ts"] * 1000).toLocaleDateString();
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if(index % 10 !== 0){
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date = "";
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}
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x.push(date);
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yScore.push(entry["score"]);
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yDelay.push(entry["offset"]);
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});
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this.drawPlot(currentIndex + "-Delay", x, yDelay, "Delay");
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this.drawPlot(currentIndex + "-Score", x, yScore, "Score");
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}
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}
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xhr.open("GET", "https://www.ntppool.org/scores/" + ip + "/json?monitor=*&limit=800");
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xhr.send();
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}
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drawPlot(elementName, x, y, title){
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let ctx = document.getElementById(elementName).getContext('2d');
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new Chart(ctx, {
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type: 'line',
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responsive: true,
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scaleShowVerticalLines: false,
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showTooltips: false,
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data: {
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labels: x,
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datasets: [{
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label: title,
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data: y,
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borderColor: '#199a87',
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fill: false,
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radius: 0,
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}]
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},
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});
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}
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}
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customElements.define("jl-ntp-graph", NtpGraph); |