// ==UserScript==
// @name         Mathletics Auto Math Solver 
// @namespace    / http://tampermonkey.net
// @version      2.0
// @description  Automatically solves Mathletics math problems when "A" is pressed.
// @author       nukerboss
// @match        https://*.mathletics.com/*
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';
    
    // Function to solve addition, subtraction, and multiplication equations
    function solveEquation() {
        var equation = document.getElementsByClassName('questions-text-alignment whiteTextWithShadow question-size-v4')[0].innerText.trim();
        var result;

        if (equation.includes("=")) {
            var equationParts = equation.split('=');
            var leftPart = equationParts[0].trim();
            var rightSide = parseInt(equationParts[1].trim());

            if (leftPart.includes("_")) {
                // Solve for blank space in the equation
                if (leftPart.includes("+")) {
                    var parts = leftPart.split("+");
                    var leftNumber = parseInt(parts[0].trim());
                    result = rightSide - leftNumber;
                } else if (leftPart.includes("-")) {
                    var parts = leftPart.split("-");
                    var leftNumber = parseInt(parts[0].trim());
                    result = leftNumber - rightSide;
                } else if (leftPart.includes("×")) {
                    var parts = leftPart.split("×");
                    var leftNumber = parseInt(parts[0].trim());
                    result = rightSide / leftNumber;
                }
            } else {
                // Handle standard equations
                var parts = leftPart.split(" ");
                var firstNum = parseInt(parts[0].trim());
                var operator = parts[1];
                var secondNum = parseInt(parts[2].trim());

                switch (operator) {
                    case "+":
                        result = firstNum + secondNum;
                        break;
                    case "-":
                        result = firstNum - secondNum;
                        break;
                    case "×":
                        result = firstNum * secondNum;
                        break;
                }
            }

            // Display the result
            document.getElementById("dashow").innerText = result;
            document.getElementsByClassName("questions-input-adjustment questions-input-width-v3")[0].value = result;
        }
    }

    // Event listener for the "A" key to solve the equation
    window.addEventListener("keydown", function(e) {
        if (e.key === "A" || e.key === "a") {
            solveEquation();
        }
    });
})();