var numSquares = 6;
var colors = generateRandomColors(numSquares);
var squares = document.querySelectorAll(".square");
var pickedColor = randomColorG();
var colorDisplay = document.querySelector("#colorDisplay");
var messageDisplay = document.querySelector("#message");
var h1 = document.querySelector("h1");
var resetButton = document.querySelector("#reset");
var easyBtn = document.querySelector("#easyButton");
var hardBtn = document.querySelector("#hardButton");
easyBtn.addEventListener("click", function() {
    //highlight button to show selected  
    hardBtn.classList.remove("selected");
    easyBtn.classList.add("selected");
    //set number of squares to 3  
    numSquares = 3;
    //change colors to 3  
    colors = generateRandomColors(numSquares);
    //reset winning color  
    pickedColor = randomColorG();
    //change display to show new picked color  
    colorDisplay.textContent = pickedColor;
    //loop through 3 squares and reset colors while displaying none for squares without new reset colors  
    for (var i = 0; i < squares.length; i++) {
        if (colors[i]) {
            squares[i].style.background = colors[i];
        } else {
            squares[i].style.display = "none";
        }
    }
});
hardBtn.addEventListener("click", function() {
    easyBtn.classList.remove("selected");
    hardBtn.classList.add("selected");
    numSquares = 6;
    colors = generateRandomColors(numSquares);
    pickedColor = randomColorG();
    colorDisplay.textContent = pickedColor;
    for (var i = 0; i < squares.length; i++) {
        squares[i].style.backgroundColor = colors[i];
        squares[i].style.display = "block";
    }
});
resetButton.addEventListener("click", function() {
    //generate all new colors  
    colors = generateRandomColors(numSquares);
    //pick a new random color from array  
    pickedColor = randomColorG();
    //change colorDisplay to match picked color  
    colorDisplay.textContent = pickedColor;
    resetButton.textContent = "New Colors";
    messageDisplay.textContent = "";
    //change colors of squares  
    for (var i = 0; i < squares.length; i++) {
        squares[i].style.backgroundColor = colors[i];
    }
    //set winning color highlight back to default  
    h1.style.background = "steelblue";
})
colorDisplay.textContent = pickedColor;
for (var i = 0; i < squares.length; i++) {
    //add initial colors to squares  
    squares[i].style.backgroundColor = colors[i];
    //add click listeners to squares  
    squares[i].addEventListener("click", function() {
        //grab color of clicked square  
        var clickedColor = this.style.backgroundColor;
        //compare color to pickedColor  
        console.log(clickedColor, pickedColor);
        if (clickedColor === pickedColor) {
            messageDisplay.textContent = "Correct!";
            resetButton.textContent = "Play Again?";
            changeColors(clickedColor);
            h1.style.background = clickedColor;
        } else {
            this.style.backgroundColor = "#232323";
            messageDisplay.textContent = "Try Again";
        }
    });
}

function changeColors(colorz) {
    //loop through all squares  
    for (var i = 0; i < squares.length; i++) {
        //change each color to match given color  
        squares[i].style.background = colorz;
    }
}

function randomColorG() {
    //pick a random number  
    var random = Math.floor(Math.random() * colors.length)
    return colors[random];
}

function generateRandomColors(genColor) {
    //make an array  
    var arr = []
        //repeat num times  
    for (var i = 0; i < genColor; i++) {
        // get random color and push into array  
        arr.push(randomColor())
    }
    //return that array  
    return arr;
}

function randomColor() {
    //pick a "red" from 0 - 255  
    var r = Math.floor(Math.random() * 256);
    //pick a "green" from 0 - 255  
    var g = Math.floor(Math.random() * 256);
    // pick a "blue" from 0 - 255  
    var b = Math.floor(Math.random() * 256);
    return "rgb(" + r + ", " + g + ", " + b + ")";
}