<div class="container"> 
   <h1>Simple JavaScript Shopping Cart</h1>
   <p>Simplified 'add to cart' functionality. Uses Javascript
   and WebStorage API/Cookies to remember cart data converted to JSON format.</p>
   <p>Click 'Empty Cart' button to remove session cookies from browser.</p>
   <div id="alerts"></div>
<div class="productcont">
   <!--  <div>2</div>
            <div>75.00</div>
            <div style="color: blue"><p><b>63.00</b></p></div>
            <div><a href="https://www.ecobunny.co.uk"><button type="button" class="button">Book Now</button></a></div>  -->
  
<!--  <div class="product">
       <h3 class="productname">2studio/1 bedroom</h3>
            <p>Booked EPC Assessment</p>
            <p class="price">£63.00</p>
            <button class="addtocart">Add To Cart</button>
        </div> -->
        <div class="product">
            <h3 class="productname">Studio or 1 bedroom</h3>
            <p>booked EPC certificate</p>
            <p class="price">£63.00</p>
            <button class="addtocart">Add To Cart</button>
        </div>
        <div class="product">
            <h3 class="productname">Product 3</h3>
            <p>Product description excerpt...</p>
            <p class="price">£10.50</p>
            <button class="addtocart">Add To Cart</button>
        </div>
        </div>
        <div class="cart-container">
          <h2>Cart</h2>
          <table>
            <thead>
              <tr>
              <th><strong>Product</strong></th>
              <th><strong>Price</strong></th>
            </tr>
            </thead>
            <tbody id="carttable">
            </tbody>
          </table>
          <hr>
          <table id="carttotals">
            <tr>
              <td><strong>Items</strong></td>
              <td><strong>Total</strong></td>
            </tr>
            <tr>
              <td>x <span id="itemsquantity">0</span></td>
             
              <td>£<span id="total">0</span></td>
            </tr></table>

            
          <div class="cart-buttons">  
            <button id="emptycart">Empty Cart</button>
            <button id="checkout">Checkout</button>
          </div>
        </div>
</div>
 @import url('https://fonts.googleapis.com/css?family=Quicksand:400,700');
*, ::before, ::after { box-sizing: border-box; }
body{
  font-family:'Quicksand', sans-serif;
  text-align:center;
  line-height:1.5em;
/*   background:#E0E4CC; */
/* background: #69d2e7;
background: -moz-linear-gradient(-45deg, #69d2e7 0%, #a7dbd8 25%, #e0e4cc 46%, #e0e4cc 54%, #f38630 75%, #fa6900 100%);
background: -webkit-linear-gradient(-45deg, #69d2e7 0%,#a7dbd8 25%,#e0e4cc 46%,#e0e4cc 54%,#f38630 75%,#fa6900 100%);
background: linear-gradient(135deg, #69d2e7 0%,#a7dbd8 25%,#e0e4cc 46%,#e0e4cc 54%,#f38630 75%,#fa6900 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#69d2e7', endColorstr='#fa6900',GradientType=1 );
} */
hr {
  border:none;
  background:#E0E4CC;
  height:1px;
/*   width:60%;
  display:block;
  margin-left:0; */
}
.container {
  max-width: 800px; 
  margin: 1em auto; 
  background:#FFF; 
  padding:30px;
  border-radius:5px;
}
.productcont {
  display: flex; 
}
.product {
  padding:1em; 
  border:1px solid #E0E4CC; 
  margin-right:1em; 
  border-radius:5px;
}
.cart-container {
  border:1px solid #E0E4CC;
  border-radius:5px;
  margin-top:1em;
  padding:1em;
}
button, input[type="submit"] { 
    border:1px solid #FA6900; 
    color:#fff; 
    background: #F38630; 
    padding:0.6em 1em;
    font-size:1em; 
    line-height:1; 
    border-radius: 1.2em;
    transition: color 0.2s ease-in-out, background 0.2s ease-in-out, border-color 0.2s ease-in-out;
}
button:hover, button:focus, button:active, input[type="submit"]:hover, input[type="submit"]:focus, input[type="submit"]:active {
    background: #A7DBD8;
    border-color:#69D2E7;
    color:#000;
    cursor: pointer;
}
table {
  margin-bottom:1em;
  border-collapse:collapse;
}
table td, table th {
  text-align:left;
  padding:0.25em 1em;
  border-bottom:1px solid #E0E4CC;
}
#carttotals {
  margin-right:0;
  margin-left:auto;
}
.cart-buttons {
  width:auto;
  margin-right:0;
  margin-left:auto;
  display:flex;
  justify-content:flex-end;
  padding:1em 0;
}
#emptycart {
  margin-right:1em;
}
table td:nth-last-child(1) {
  text-align:right;
}
.message {
  border-width: 1px 0px;
  border-style:solid;
  border-color:#A7DBD8;
  color:#679996;
  padding:0.5em 0;
  margin:1em 0;
}
updateCartTotal(); 
/* button event listeners */ 
document.getElementById("emptycart").addEventListener("click", emptyCart);
var btns = document.getElementsByClassName('addtocart');
for (var i = 0; i < btns.length; i++) {
    btns[i].addEventListener('click', function() {addToCart(this);});
} 

/* ADD TO CART functions */

function addToCart(elem) {
    //init
    var sibs = [];
    var getprice;
    var getproductName;
    var cart = [];
     var stringCart;
    //cycles siblings for product info near the add button
    while(elem = elem.previousSibling) {
        if (elem.nodeType === 3) continue; // text node
        if(elem.className == "price"){
            getprice = elem.innerText;
        }
        if (elem.className == "productname") {
            getproductName = elem.innerText;
        }
        sibs.push(elem);
    }
    //create product object
    var product = {
        productname : getproductName,
        price : getprice
    };
    //convert product data to JSON for storage
    var stringProduct = JSON.stringify(product);
    /*send product data to session storage */
    
    if(!sessionStorage.getItem('cart')){
        //append product JSON object to cart array
        cart.push(stringProduct);
        //cart to JSON
        stringCart = JSON.stringify(cart);
        //create session storage cart item
        sessionStorage.setItem('cart', stringCart);
        addedToCart(getproductName);
        updateCartTotal();
    }
    else {
        //get existing cart data from storage and convert back into array
       cart = JSON.parse(sessionStorage.getItem('cart'));
        //append new product JSON object
        cart.push(stringProduct);
        //cart back to JSON
        stringCart = JSON.stringify(cart);
        //overwrite cart data in sessionstorage 
        sessionStorage.setItem('cart', stringCart);
        addedToCart(getproductName);
        updateCartTotal();
    }
}
/* Calculate Cart Total */
function updateCartTotal(){
    //init
    var total = 0;
    var price = 0;
    var items = 0;
    var productname = "";
    var carttable = "";
    if(sessionStorage.getItem('cart')) {
        //get cart data & parse to array
        var cart = JSON.parse(sessionStorage.getItem('cart'));
        //get no of items in cart 
        items = cart.length;
        //loop over cart array
        for (var i = 0; i < items; i++){
            //convert each JSON product in array back into object
            var x = JSON.parse(cart[i]);
            //get property value of price
            price = parseFloat(x.price.split('£')[1]);
            productname = x.productname;
            //add price to total
            carttable += "<tr><td>" + productname + "</td><td>£" + price.toFixed(2) + "</td></tr>";
            total += price;
        }
        
    }
    //update total on website HTML
    document.getElementById("total").innerHTML = total.toFixed(2);
    //insert saved products to cart table
    document.getElementById("carttable").innerHTML = carttable;
    //update items in cart on website HTML
    document.getElementById("itemsquantity").innerHTML = items;
}
//user feedback on successful add
function addedToCart(pname) {
  var message = pname + " was added to the cart";
  var alerts = document.getElementById("alerts");
  alerts.innerHTML = message;
  if(!alerts.classList.contains("message")){
     alerts.classList.add("message");
  }
}
/* User Manually empty cart */
function emptyCart() {
    //remove cart session storage object & refresh cart totals
    if(sessionStorage.getItem('cart')){
        sessionStorage.removeItem('cart');
        updateCartTotal();
      //clear message and remove class style
      var alerts = document.getElementById("alerts");
      alerts.innerHTML = "";
      if(alerts.classList.contains("message")){
          alerts.classList.remove("message");
      }
    }
 
}
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