Minetrack/assets/js/servers.js
2023-12-30 23:03:54 +00:00

397 lines
11 KiB
JavaScript

import uPlot from "uplot";
import { RelativeScale } from "./scale";
import { uPlotTooltipPlugin } from "./plugins";
import {
formatDate,
formatMinecraftServerAddress,
formatMinecraftVersions,
formatNumber,
formatTimestampSeconds,
} from "./util";
import MISSING_FAVICON from "url:../images/missing_favicon.svg";
export class ServerRegistry {
constructor(app) {
this._app = app;
this._serverIdsByName = [];
this._serverDataById = [];
this._registeredServers = [];
}
assignServers(servers) {
for (let i = 0; i < servers.length; i++) {
const data = servers[i];
this._serverIdsByName[data.name] = i;
this._serverDataById[i] = data;
}
}
createServerRegistration(serverId) {
const serverData = this._serverDataById[serverId];
const serverRegistration = new ServerRegistration(
this._app,
serverId,
serverData
);
this._registeredServers[serverId] = serverRegistration;
return serverRegistration;
}
getServerRegistration(serverKey) {
if (typeof serverKey === "string") {
const serverId = this._serverIdsByName[serverKey];
return this._registeredServers[serverId];
} else if (typeof serverKey === "number") {
return this._registeredServers[serverKey];
}
}
getServerRegistrations = () => Object.values(this._registeredServers);
reset() {
this._serverIdsByName = [];
this._serverDataById = [];
this._registeredServers = [];
// Reset modified DOM structures
document.getElementById("server-list").innerHTML = "";
}
}
export class ServerRegistration {
playerCount = 0;
isVisible = true;
isFavorite = false;
rankIndex;
lastRecordData;
lastPeakData;
constructor(app, serverId, data) {
this._app = app;
this.serverId = serverId;
this.data = data;
this._graphData = [[], []];
this._failedSequentialPings = 0;
}
getGraphDataIndex() {
return this.serverId + 1;
}
addGraphPoints(points, timestampPoints) {
this._graphData = [timestampPoints.slice(), points];
}
buildPlotInstance() {
const tickCount = 4;
// eslint-disable-next-line new-cap
this._plotInstance = new uPlot(
{
plugins: [
uPlotTooltipPlugin((pos, id) => {
if (pos) {
const playerCount = this._graphData[1][id];
if (typeof playerCount !== "number") {
this._app.tooltip.hide();
} else {
this._app.tooltip.set(
pos.left,
pos.top,
10,
10,
`${formatNumber(
playerCount
)} Players<br>${formatTimestampSeconds(
this._graphData[0][id]
)}`
);
}
} else {
this._app.tooltip.hide();
}
}),
],
height: 100,
width: 400,
cursor: {
y: false,
drag: {
setScale: false,
x: false,
y: false,
},
sync: {
key: "minetrack-server",
setSeries: true,
},
},
series: [
{},
{
stroke: "#E9E581",
width: 2,
value: (_, raw) => `${formatNumber(raw)} Players`,
spanGaps: true,
points: {
show: false,
},
},
],
axes: [
{
show: false,
},
{
ticks: {
show: false,
},
font: '14px "Open Sans", sans-serif',
stroke: "#A3A3A3",
size: 55,
grid: {
stroke: "#333",
width: 1,
},
split: () => {
const { scaledMin, scaledMax, scale } = RelativeScale.scale(
this._graphData[1],
tickCount
);
const ticks = RelativeScale.generateTicks(
scaledMin,
scaledMax,
scale
);
return ticks;
},
},
],
scales: {
y: {
auto: false,
range: () => {
const { scaledMin, scaledMax } = RelativeScale.scale(
this._graphData[1],
tickCount
);
return [scaledMin, scaledMax];
},
},
},
legend: {
show: false,
},
},
this._graphData,
document.getElementById(`chart_${this.serverId}`)
);
}
handlePing(payload, timestamp) {
if (typeof payload.playerCount === "number") {
this.playerCount = payload.playerCount;
// Reset failed ping counter to ensure the next connection error
// doesn't instantly retrigger a layout change
this._failedSequentialPings = 0;
} else {
// Attempt to retain a copy of the cached playerCount for up to N failed pings
// This prevents minor connection issues from constantly reshuffling the layout
if (++this._failedSequentialPings > 5) {
this.playerCount = 0;
}
}
// Use payload.playerCount so nulls WILL be pushed into the graphing data
this._graphData[0].push(timestamp);
this._graphData[1].push(payload.playerCount);
// Trim graphData to within the max length by shifting out the leading elements
for (const series of this._graphData) {
if (series.length > this._app.publicConfig.serverGraphMaxLength) {
series.shift();
}
}
// Redraw the plot instance
this._plotInstance.setData(this._graphData);
}
updateServerRankIndex(rankIndex) {
this.rankIndex = rankIndex;
document.getElementById(`ranking_${this.serverId}`).innerText = `#${
rankIndex + 1
}`;
}
_renderValue(prefix, handler) {
const labelElement = document.getElementById(`${prefix}_${this.serverId}`);
labelElement.style.display = "block";
const valueElement = document.getElementById(
`${prefix}-value_${this.serverId}`
);
const targetElement = valueElement || labelElement;
if (targetElement) {
if (typeof handler === "function") {
handler(targetElement);
} else {
targetElement.innerText = handler;
}
}
}
_hideValue(prefix) {
const element = document.getElementById(`${prefix}_${this.serverId}`);
element.style.display = "none";
}
updateServerStatus(ping, minecraftVersions) {
if (ping.versions) {
this._renderValue(
"version",
formatMinecraftVersions(
ping.versions,
minecraftVersions[this.data.type]
) || ""
);
}
if (ping.recordData) {
this._renderValue("record", (element) => {
if (ping.recordData.timestamp > 0) {
element.innerText = `${formatNumber(
ping.recordData.playerCount
)} (${formatDate(ping.recordData.timestamp)})`;
element.title = `At ${formatDate(
ping.recordData.timestamp
)} ${formatTimestampSeconds(ping.recordData.timestamp)}`;
} else {
element.innerText = formatNumber(ping.recordData.playerCount);
}
});
this.lastRecordData = ping.recordData;
}
if (ping.graphPeakData) {
this._renderValue("peak", (element) => {
element.innerText = formatNumber(ping.graphPeakData.playerCount);
element.title = `At ${formatTimestampSeconds(
ping.graphPeakData.timestamp
)}`;
});
this.lastPeakData = ping.graphPeakData;
}
if (ping.error) {
this._hideValue("player-count");
this._renderValue("error", ping.error.message);
} else if (typeof ping.playerCount !== "number") {
this._hideValue("player-count");
// If the frontend has freshly connection, and the server's last ping was in error, it may not contain an error object
// In this case playerCount will safely be null, so provide a generic error message instead
this._renderValue("error", "Failed to ping");
} else if (typeof ping.playerCount === "number") {
this._hideValue("error");
this._renderValue("player-count", formatNumber(ping.playerCount));
}
// An updated favicon has been sent, update the src
if (ping.favicon) {
const faviconElement = document.getElementById(
`favicon_${this.serverId}`
);
// Since favicons may be URLs, only update the attribute when it has changed
// Otherwise the browser may send multiple requests to the same URL
if (faviconElement.getAttribute("src") !== ping.favicon) {
faviconElement.setAttribute("src", ping.favicon);
}
}
}
initServerStatus(latestPing) {
const serverElement = document.createElement("div");
serverElement.id = `container_${this.serverId}`;
serverElement.innerHTML = `<div class="column column-favicon">
<img class="server-favicon" src="${
latestPing.favicon || MISSING_FAVICON
}" id="favicon_${this.serverId}" title="${
this.data.name
}\n${formatMinecraftServerAddress(this.data.ip, this.data.port)}">
<span class="server-rank" id="ranking_${this.serverId}"></span>
</div>
<div class="column column-status">
<h3 class="server-name"><span class="${this._app.favoritesManager.getIconClass(
this.isFavorite
)}" id="favorite-toggle_${this.serverId}"></span> ${this.data.name}</h3>
<span class="server-error" id="error_${this.serverId}"></span>
<span class="server-label" id="player-count_${
this.serverId
}">Players: <span class="server-value" id="player-count-value_${
this.serverId
}"></span></span>
<span class="server-label" id="peak_${this.serverId}">${
this._app.publicConfig.graphDurationLabel
} Peak: <span class="server-value" id="peak-value_${
this.serverId
}">-</span></span>
<span class="server-label" id="record_${
this.serverId
}">Record: <span class="server-value" id="record-value_${
this.serverId
}">-</span></span>
<span class="server-label" id="version_${this.serverId}"></span>
</div>
<div class="column column-graph" id="chart_${this.serverId}"></div>`;
serverElement.setAttribute("class", "server");
document.getElementById("server-list").appendChild(serverElement);
}
updateHighlightedValue(selectedCategory) {
["player-count", "peak", "record"].forEach((category) => {
const labelElement = document.getElementById(
`${category}_${this.serverId}`
);
const valueElement = document.getElementById(
`${category}-value_${this.serverId}`
);
if (selectedCategory && category === selectedCategory) {
labelElement.setAttribute("class", "server-highlighted-label");
valueElement.setAttribute("class", "server-highlighted-value");
} else {
labelElement.setAttribute("class", "server-label");
valueElement.setAttribute("class", "server-value");
}
});
}
initEventListeners() {
document
.getElementById(`favorite-toggle_${this.serverId}`)
.addEventListener(
"click",
() => {
this._app.favoritesManager.handleFavoriteButtonClick(this);
},
false
);
}
}