Auto solve Telegram Math Battle

if (observer) {
    observer.disconnect();
}

var running = true;
var taskNode = document.getElementById('task');
var taskX = document.getElementById('task_x');
var taskOp = document.getElementById('task_op');
var taskY = document.getElementById('task_y');
var taskRes = document.getElementById('task_res');
var buttonCorrect = document.getElementById('button_correct');
var buttonWrong = document.getElementById('button_wrong');

function isCorrect() {
    const expression = `${taskX.innerText}${taskOp.innerText}${taskY.innerText}`.replace('×', '*').replace('–', '-')

return eval(expression)==taskRes.innerText;
}

function autoClick() {
    if (isCorrect()) {
            buttonCorrect.click();
        } else {
            buttonWrong.click();
        }
}

var config = { attributes: true, childList: true, subtree: true };
var timeoutId = null

var observer = new MutationObserver((mutationList) => {
    if (!running) {
        return;
    }
    
    for (const mutation of mutationList) {
        if (mutation.type == 'attributes') {
            return;
        }
    }

clearTimeout(timeoutId);

setTimeout(() => {
        autoClick()
    }, 100)

});

// Start observing the target node for configured mutations
observer.observe(taskNode, config);

function stop() {
    running = false;
}

function play() {
    running = true;
    autoClick();
}