Product addon not working properly

[ecommercify]

I added a product addon option below the product price with the help of a snippet code by showing a collection page in a snippet. the function is created but the addon product didn't add to the cart. whereas I added jQuery to the layout... below is the snippet code. I  need to fix it. 

<div class="bundle_products"> 
  <ul> 
    {% for product in collections.bundle-products.products %}
    <li class="bundle-item" data-id="{{product.first_available_variant.id}}">
      <div class="img"> 
        <img src="{{  product.featured_image | img_url: '100' | format: 'jpg' }}" alt="{{ block.settings.slide_heading }}">           
      </div>
      <div class="product_content">
        <h3>{{ product.title }}</h3>
        <h4>{{ product.price | money | remove: '.00' }}</h4> 
      </div>
    </li> 
    {% endfor %} 
    
    <li class="bundle-item active" style="display: none;" data-id="{{product.first_available_variant.id}}"></li>
  </ul>  
</div><!-- #bundle Products -->


<script>
$( document ).ready(function() { 
  ///add active class to current select
  $(".bundle_products .bundle-item").click(function() {
     $(this).toggleClass('active');  
});
   
  //submit form button
  $(".product-form__cart-submit").click(function(event) {
   event.preventDefault();  
    
    var arr = [];
   i = 0;
   $('.bundle_products .bundle-item.active').each(function(){ 
     arr[i++] = $(this).attr('data-id');
        });
  // console.log(arr);
   var newstr = [arr.join(',')];
  // console.log(newstr); 
   //alert(arr);
   
    var newvalue = newstr;
    
Shopify.queue = [];
  var quantity =1;
  var newArray = newvalue.toString().split(',');
  for (var i = 0; i < newArray.length; i++) {
    product = newArray[i];
    Shopify.queue.push({
      variantId: product,
    });
          }
     
    
  Shopify.moveAlong = function() {
  // If we still have requests in the queue, let's process the next one.
  if (Shopify.queue.length) {
    var request = Shopify.queue.shift();
    var data = 'id='+ request.variantId + '&quantity=1'
    $.ajax({
      type: 'POST',
              url: '/cart/add.js',
      dataType: 'json',
      data: data,
      success: function(res){
        Shopify.moveAlong();
            
            //submit form after sucess 
               setTimeout(function(){
                  // $('.product-form').submit();
                 window.location.href = "/cart";
               }, 1500);
              
            
     },
             error: function(){
     // if it's not last one Move Along else update the cart number with the current quantity
  
      }
           });
        }
// If the queue is empty, we add 1 to cart
/*else {
  quantity += 1;
  addToCartOk(quantity);
} */
        
       };
    Shopify.moveAlong();
  
    
    }); 
    });
</script>


<style>
.bundle_products {
    margin-top: 30px;
}  
.bundle_products li.bundle-item {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 30px;
    padding-left: 30px;
    position: relative;
    cursor: pointer;
}

.bundle_products li.bundle-item:before {
    content: '';
    position: absolute;
    width: 15px;
    height: 15px;
    border: 1px solid #712a2a;
    left: 0; 
    top: 2px;
    border-radius: 3px;
}
.bundle_products li.bundle-item.active:before { 
    background-color: #712a2a; 
}
  
.bundle_products li.bundle-item .img {
    width: 100px;
}
.bundle_products li.bundle-item .product_content {
    padding-left: 15px;
    width: calc(100% - 100px);
}
.bundle_products li.bundle-item h3 {
    font-size: 19px;
    font-weight: 400;
    margin-bottom: 10px;
}
.bundle_products li.bundle-item h4 {
    font-weight: 400;
    font-size: 15px;
}
</style>