Custom Add to cart WooCommerce, Refresh fragments data, Refresh cart total items, Get product variation

script.js

product_add_to_cart : function(){
		var ajx_data = {};
		var ajx_grab = {};
    
    $(document).on('change','.single-product .variations_form select',function(e){
      var $this = $(this);
      var pro_id   = $(".single-product .variations_form").attr('data-product_id');
      var attribute_name = $this.attr('data-attribute_name');
      var attribute_value = $this.val();
      var post_ajxurl   = window.location+"?wc-ajax=get_variation";	
      get_variation_product(pro_id,attribute_name,attribute_value,post_ajxurl);
    });
    
    $(".input-text.qty.text").on("change",function(event){
      ajx_grab['pro_quantity'] = parseInt($(this).val()); 
    });
    
    
	function get_variation_product(pro_id,attribute_name,attribute_value,post_ajxurl)
	{			
		if(ajx_data.product_id == pro_id)
		{
			ajx_data[attribute_name] = attribute_value;
		}
		else
		{
			ajx_data = {
				[attribute_name] : attribute_value,
				'product_id' : pro_id
			}
		}
		console.log(ajx_data);
		$.ajax({
			type: "POST",
			url: post_ajxurl,
			data: ajx_data,
			success: function(result,status){
				if(status == "success" && result != false)
				{
					ajx_grab = result;
					ajx_grab['product_id'] = pro_id;
					ajx_grab['status_msg'] = true;
					$(".custom-add-to-cart-btn").removeClass("disabled");
				}
				else
				{
					ajx_grab['status_msg'] = false;
					$(".custom-add-to-cart-btn").addClass("disabled");
				}
			},
			dataType: 'json'
		});
	}
    $( document.body ).on('click','.woocommerce-variation-add-to-cart .single_add_to_cart_button , .btn-variation',function(e){
		$form = $(this).parents('form');
		$form.find("[name='variation_id']").val(ajx_grab.variation_id);
		$form_serialize = $form.serialize();

		var pro_add = woocommerce_params.wc_ajax_url+"&"+$form_serialize;
		pro_add = pro_add.replace("%%endpoint%%", "add-to-cart");

		$.get(pro_add, function(data, status){
			console.log("\nStatus: " + status);
			if(status == "success")
			{
				var url = woocommerce_params.wc_ajax_url;
				url = url.replace("%%endpoint%%", "get_refreshed_fragments");

				$.post(url, function(data, status){
					//$('.woocommerce.widget_shopping_cart').html(data.fragments['div.widget_shopping_cart_content']);
					if ( data.fragments )
					{
						jQuery.each(data.fragments, function(key, value){
							jQuery(key).replaceWith(value);
						});
					}
					jQuery('body').trigger( 'wc_fragments_refreshed' );
				});
			}
		});
		return false;
	});
};