analyzeOnWintrChess.user.js

// ==UserScript==
// @author       sellithy
// @name         Chess.com → WintrChess
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  Insert a WintrChess favicon button on Chess.com; auto-paste PGN on WintrChess, and starts an analysis
// @match        https://www.chess.com/game/*
// @match        https://www.chess.com/game/live/*
// @match        https://www.chess.com/game/daily/*
// @match        https://www.chess.com/analysis/game/live/*
// @match        https://wintrchess.com/analysis*
// @require      https://cdn.jsdelivr.net/npm/wait-for-the-element@4
// @downloadURL  https://gist.github.com/sellithy/0faff5c8bb5789e00a1e9134c2daced4/raw/108d3d804be20871e437c55ec79df5110e00bef6/analyzeOnWintrChess.user.js
// @grant        GM_openInTab
// @run-at       document-idle
// ==/UserScript==

const {waitForTheElement} = this["wait-for-the-element"];

(function() {
    'use strict';

    const WINTR_CHESS_BUTTON_ID = 'tm-wintrchess-btn';

    async function insertWintrChessButton() {
        const shareBtn = await waitForTheElement('button[aria-label^="Share"]', {timeout: 1000});
        if (!shareBtn) {
            console.error('Timeout waiting for Share button');
            return;
        }
        if (document.getElementById(WINTR_CHESS_BUTTON_ID)) return;

        const wintrBtnImage = document.createElement('img');
        wintrBtnImage.src = 'https://www.google.com/s2/favicons?domain=wintrchess.com&sz=256';
        wintrBtnImage.style.height = shareBtn.clientHeight + 'px';
        wintrBtnImage.style.width = 'auto';
        wintrBtnImage.style.border = 'none'

        const wintrBtn = document.createElement('button');
        wintrBtn.id = WINTR_CHESS_BUTTON_ID;

        wintrBtn.classList.add('live-game-buttons-button');
        wintrBtn.style.height = wintrBtnImage.style.height;
        wintrBtn.style.padding = '0';
        wintrBtn.style['background-color'] = 'transparent';
        wintrBtn.style.border = 'none';

        wintrBtn.appendChild(wintrBtnImage);

        wintrBtn.onclick = async () => {
            shareBtn.click();

            const dialog = await waitForTheElement('div[role="dialog"]');
            if (!dialog) {
                console.error('Share modal did not appear.');
                return;
            }

            const pgnTab = Array.from(dialog.querySelectorAll('button'))
                                .find(b => b.textContent.trim() === 'PGN');
            if (!pgnTab) {
                console.error('PGN tab not found.');
                return;
            }
            pgnTab.click();

            const textarea = await waitForTheElement('textarea');
            if (!textarea) {
                console.error('PGN textarea did not load.');
                return;
            }

            const pgn = textarea.value.trim();
            if (!pgn) {
                console.error('Failed to retrieve PGN.');
                return;
            }

            const closeBtn = dialog.querySelector('button[aria-label="Close"]');
            if (closeBtn) closeBtn.click();

            const url = 'https://wintrchess.com/analysis?pgn=' + encodeURIComponent(pgn);
            GM_openInTab(url, false);
        };

        shareBtn.parentNode.insertBefore(wintrBtn, shareBtn.nextSibling);
    }

    async function clickAnalyze() {
        const pgnParam = new URLSearchParams(location.search).get('pgn');
        if (!pgnParam) return;
        const decodedPgn = decodeURIComponent(pgnParam);

        const textarea = await waitForTheElement('textarea', {timeout: 1000});
        if (!textarea) {
            console.error('Failed to find PGN textarea on WintrChess.');
            return;
        }

        const select = await waitForTheElement('select:has(option[value="PGN"])', {timeout: 1000})
        if (!select) {
            console.error('Failed to find select on WintrChess.');
            return;
        }

        if (select.value != "PGN") {
            select.value = "PGN";
            select.dispatchEvent(new Event("change", { bubbles: true }));
            await new Promise(resolve => setTimeout(resolve, 1000));
        }

        Object.getOwnPropertyDescriptor(window.HTMLTextAreaElement.prototype, "value")
            .set.call(textarea, decodedPgn);
        textarea.dispatchEvent(new Event("input", { bubbles: true }));

        const btn = Array.from(document.querySelectorAll('button'))
                         .find(b => b.textContent.trim().toLowerCase() === 'analyse');
        if (!btn) {
            console.error('Analyse button not found.');
            return;
        }

        await new Promise(resolve => setTimeout(resolve, 1000));
        btn.click();
    }

    (function main() {
        if (location.hostname === 'wintrchess.com') {
            clickAnalyze();
        } else {
            insertWintrChessButton();
        }
    })();
})();