cart.js

let cartdata=document.querySelector(".cart-itmes")

  
fetchingdata()
function fetchingdata(){
    fetch("https://lensmart-backend3-0.onrender.com/product_status")
    .then((res)=>{
        return res.json()
    })
    .then((data)=>{
        randarcards(data)
   console.log(data)
    })
    

}
function randarcards(data){
    let sampl=data.map((ele)=>{
        let create=addItemToCart(ele.frameImg,ele.discountedPrice,ele.title)
        return create
        // cartdata.append()
    })
    cartdata.innerHTML=sampl.join("")
console.log(sampl)
}
function createcarts(image,price,title){
    let card=`<div class="shop-item">
    <span class="shop-item-title">${title}</span>
    <img class="shop-item-image" src="${image}" width=700px>
    <div class="shop-item-details">
        <span class="shop-item-price">${price}</span>
        
        <button class="btn btn-primary shop-item-button" type="button">ADD TO CART</button>
    </div>
</div> `
    return card;
}

if (document.readyState == 'loading') {
    document.addEventListener('DOMContentLoaded', ready)
} else {
    ready()
}

function ready() {
    var removeCartItemButtons = document.getElementsByClassName('btn-danger')
    for (var i = 0; i < removeCartItemButtons.length; i++) {
        var button = removeCartItemButtons[i]
        button.addEventListener('click', removeCartItem)
    }

    var quantityInputs = document.getElementsByClassName('cart-quantity-input')
    for (var i = 0; i < quantityInputs.length; i++) {
        var input = quantityInputs[i]
        input.addEventListener('change', quantityChanged)
    }

    var addToCartButtons = document.getElementsByClassName('shop-item-button')
    for (var i = 0; i < addToCartButtons.length; i++) {
        var button = addToCartButtons[i]
        // button.addEventListener('click', addToCartClicked)
    }

    document.getElementsByClassName('btn-purchase')[0].addEventListener('click', purchaseClicked)
}

function purchaseClicked() {
    // alert('Thank you for your purchase')
    var cartItems = document.getElementsByClassName('cart-items')[0]
    while (cartItems.hasChildNodes()) {
        cartItems.removeChild(cartItems.firstChild)
    }
    updateCartTotal()
}

function removeCartItem(event) {
    var buttonClicked = event.target
    buttonClicked.parentElement.parentElement.remove()
    updateCartTotal()

}

function quantityChanged(event) {
    var input = event.target
    if (isNaN(input.value) || input.value <= 0) {
        input.value = 1
    }
    updateCartTotal()
}

function addToCartClicked(event) {
    var button = event.target
    var shopItem = button.parentElement.parentElement
    var title = shopItem.getElementsByClassName('shop-item-title')[0].innerText
    var price = shopItem.getElementsByClassName('shop-item-price')[0].innerText
    var imageSrc = shopItem.getElementsByClassName('shop-item-image')[0].src
    addItemToCart(title, price, imageSrc)
    updateCartTotal()
}

function addItemToCart(imageSrc,price,title  ) {
    var cartRow = document.createElement('div')
    cartRow.classList.add('cart-row')
    var cartItems = document.getElementsByClassName('cart-items')[0]
    var cartItemNames = cartItems.getElementsByClassName('cart-item-title')
    for (var i = 0; i < cartItemNames.length; i++) {
        if (cartItemNames[i].innerText == title) {
            alert('This item is already added to the cart')
            return
        }
    }
    var cartRowContents = `
        <div class="cart-item cart-column">
            <img class="cart-item-image" src="${imageSrc}" width="100" height="100">
            <span class="cart-item-title">${title}</span>
        </div>
        <span class="cart-price cart-column">${price}</span>
        <div class="cart-quantity cart-column">
            <input class="cart-quantity-input" type="number" value="1">
            <button class="btn btn-danger" type="button">REMOVE</button>
        </div>`
    cartRow.innerHTML = cartRowContents
    cartItems.append(cartRow)
    cartRow.getElementsByClassName('btn-danger')[0].addEventListener('click', removeCartItem)
    cartRow.getElementsByClassName('cart-quantity-input')[0].addEventListener('change', quantityChanged)
}

function updateCartTotal() {
    var cartItemContainer = document.getElementsByClassName('cart-items')[0]
    var cartRows = cartItemContainer.getElementsByClassName('cart-row')
    var total = 0
    for (var i = 0; i < cartRows.length; i++) {
        var cartRow = cartRows[i]
        var priceElement = cartRow.getElementsByClassName('cart-price')[0]
        var quantityElement = cartRow.getElementsByClassName('cart-quantity-input')[0]
        var price = parseFloat(priceElement.innerText.replace('₹', ''))
        var quantity = quantityElement.value
        total = total + (price * quantity)
    }
    total = Math.round(total * 100) / 100
    document.getElementsByClassName('cart-total-price')[0].innerText = '₹' + total


}
document.querySelector(".btn-purchase").addEventListener("click", function () {
    window.location.replace("./checkout.html");
  });