101 lines
3.2 KiB
JavaScript
101 lines
3.2 KiB
JavaScript
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// main.js
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const userAgents = [
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36 Edg/113.0.1774.35",
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];
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function getRandomUserAgent() {
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return userAgents[Math.floor(Math.random() * userAgents.length)];
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}
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function makeRequest() {
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var username = document.getElementById('username').value;
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// Check if the username is blank
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if (!username.trim()) {
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alert("Please enter a username.");
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return;
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}
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var randomUserAgent = getRandomUserAgent();
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var url = `https://api.chess.com/pub/player/${username}/games/archives?callback=jsonpCallback&user_agent=${encodeURIComponent(randomUserAgent)}`;
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var script = document.createElement('script');
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script.src = url;
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window.jsonpCallback = function(data) {
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if (data && data.error && data.error.code === 0) {
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alert(`Invalid username. Please check your username and try again.`);
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} else if (data && data.archives && Array.isArray(data.archives)) {
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if (data.archives.length === 0) {
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alert(`No games found for the provided username.`);
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} else {
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const promises = data.archives.map(function(archiveUrl) {
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// Append '/.pgn' to each individual URL
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const url = archiveUrl;
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return makeAsyncRequest(url, getRandomUserAgent());
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});
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// Use Promise.all to wait for all requests to complete
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Promise.all(promises)
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.then(function(results) {
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// Concatenate the 'pgn' values
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const concatenatedPgn = results.flatMap(data => data.games.map(game => game.pgn)).join('\n');
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// Trigger download
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downloadFile(username, concatenatedPgn);
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})
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.catch(function(error) {
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console.error("Error in one or more requests:", error);
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alert("An error occurred. Please try again.");
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});
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}
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} else {
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alert("Error retrieving games data. Please check your username and try again.");
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}
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// Clean up the script element
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document.head.removeChild(script);
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};
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document.head.appendChild(script);
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}
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// Function to trigger download
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function downloadFile(username, content) {
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const blob = new Blob([content], { type: 'text/plain' });
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const a = document.createElement('a');
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a.href = URL.createObjectURL(blob);
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a.download = `${username}.pgn`;
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a.style.display = 'none';
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(a.href);
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}
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// Function to make asynchronous requests
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function makeAsyncRequest(url, userAgent) {
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return new Promise(function(resolve, reject) {
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const callbackName = `jsonpCallback_${Date.now()}_${Math.floor(Math.random() * 1000)}`;
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const script = document.createElement('script');
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window[callbackName] = function(data) {
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document.head.removeChild(script);
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delete window[callbackName];
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resolve(data);
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};
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const callbackUrl = `${url}?callback=${callbackName}&user_agent=${encodeURIComponent(userAgent)}`;
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script.src = callbackUrl;
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document.head.appendChild(script);
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script.onerror = function(error) {
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document.head.removeChild(script);
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delete window[callbackName];
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reject(error);
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};
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});
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}
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