133 lines
3.8 KiB
JavaScript
133 lines
3.8 KiB
JavaScript
"use strict";
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const query = (new URL(location)).searchParams.get("query")
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, epoch = Math.floor(Date.now() / 1000)
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;
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let orderBy, ascending; // use `setOrderBy()` to modify orderBy
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let lastOrderedValue, lastID;
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window.onload = function() {
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if (query !== null && query !== "") {
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orderBy = "RELEVANCE";
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}
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const title = document.getElementsByTagName("title")[0];
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if (query) {
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title.textContent = query + " - magneticow";
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const input = document.getElementsByTagName("input")[0];
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input.setAttribute("value", query);
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}
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else
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title.textContent = "Most recent torrents - magneticow";
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load();
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};
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function setOrderBy(x) {
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const validValues = [
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"TOTAL_SIZE",
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"DISCOVERED_ON",
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"UPDATED_ON",
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"N_FILES",
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"N_SEEDERS",
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"N_LEECHERS",
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"RELEVANCE"
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];
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if (!validValues.includes(x)) {
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throw new Error("invalid value for @orderBy");
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}
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orderBy = x;
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}
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function orderedValue(torrent) {
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if (orderBy === "TOTAL_SIZE") return torrent.size;
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else if (orderBy === "DISCOVERED_ON") return torrent.discoveredOn;
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else if (orderBy === "UPDATED_ON") alert("implement it server side first!");
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else if (orderBy === "N_FILES") return torrent.nFiles;
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else if (orderBy === "N_SEEDERS") alert("implement it server side first!");
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else if (orderBy === "N_LEECHERS") alert("implement it server side first!");
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else if (orderBy === "RELEVANCE") return torrent.relevance;
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}
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function load() {
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const button = document.getElementsByTagName("button")[0];
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button.textContent = "Loading More Results...";
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button.setAttribute("disabled", ""); // disable the button whilst loading...
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const tbody = document.getElementsByTagName("tbody")[0];
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const template = document.getElementById("row-template").innerHTML;
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const reqURL = "/api/v0.1/torrents?" + encodeQueryData({
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query : query,
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epoch : epoch,
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lastID : lastID,
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lastOrderedValue: lastOrderedValue
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});
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console.log("reqURL", reqURL);
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let req = new XMLHttpRequest();
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req.onreadystatechange = function() {
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if (req.readyState !== 4)
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return;
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button.textContent = "Load More Results";
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button.removeAttribute("disabled");
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if (req.status !== 200)
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alert(req.responseText);
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let torrents = JSON.parse(req.responseText);
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if (torrents.length === 0) {
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button.textContent = "No More Results";
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button.setAttribute("disabled", "");
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return;
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}
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for (let t of torrents) {
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t.size = fileSize(t.size);
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t.discoveredOn = (new Date(t.discoveredOn * 1000)).toLocaleDateString("en-GB", {
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day: "2-digit",
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month: "2-digit",
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year: "numeric"
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});
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tbody.innerHTML += Mustache.render(template, t);
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}
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const last = torrents[torrents.length - 1];
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lastID = last.id;
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lastOrderedValue = orderedValue(last);
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};
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req.open("GET", reqURL);
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req.send();
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}
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// Source: https://stackoverflow.com/a/111545/4466589
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function encodeQueryData(data) {
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let ret = [];
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for (let d in data) {
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if (data[d] === null || data[d] === undefined)
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continue;
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ret.push(encodeURIComponent(d) + "=" + encodeURIComponent(data[d]));
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}
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return ret.join("&");
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}
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// https://stackoverflow.com/q/10420352/4466589
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function fileSize(fileSizeInBytes) {
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let i = -1;
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let byteUnits = [' kB', ' MB', ' GB', ' TB', ' PB', ' EB', ' ZB', ' YB'];
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do {
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fileSizeInBytes = fileSizeInBytes / 1024;
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i++;
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} while (fileSizeInBytes > 1024);
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return Math.max(fileSizeInBytes, 0.1).toFixed(1) + byteUnits[i];
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}
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