95 lines
3 KiB
JavaScript
95 lines
3 KiB
JavaScript
import chart from 'chart.js'
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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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const ntpBanner = document.createElement("span");
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ntpBanner.classList.add("ntpBanner");
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ntpBanner.innerText = ip;
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this.appendChild(ntpBanner);
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const ntpContent = document.createElement("span");
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ntpContent.classList.add("ntpContent");
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this.appendChild(ntpContent);
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const ntpLink = document.createElement("a");
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ntpLink.target = "_blank";
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ntpLink.href = `https://www.ntppool.org/scores/${ip}`;
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ntpLink.classList.add("linkToNtpPool");
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ntpLink.innerText = "Server auf der Seite des NTP Pools anzeigen";
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ntpContent.appendChild(ntpLink);
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const ntpDelayCanvas = document.createElement("canvas");
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ntpDelayCanvas.classList.add("graphDelay");
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ntpContent.appendChild(ntpDelayCanvas);
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const ntpScoreCanvas = document.createElement("canvas");
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ntpScoreCanvas.classList.add("graphScore");
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ntpContent.appendChild(ntpScoreCanvas);
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ntpBanner.onclick = () => {
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if (ntpContent.classList.contains("visible")) {
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ntpContent.classList.remove("visible");
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} else {
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ntpContent.classList.add("visible");
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}
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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(".graphDelay", x, yDelay, "Delay");
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this.drawPlot(".graphScore", 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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}
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drawPlot(elementName, x, y, title) {
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let ctx = this.querySelector(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); |