Tag Specific Redirect

{%- comment %}
  @param cart (cart, mandatory)
  @param checkout_url (string, mandatory) the checkout url
  @param checkout_button_selector (string) the query selector for the checkout button
{% endcomment -%}

{% unless checkout_url %}
  {% assign checkout_url = 'ENTER_YOUR_CHECKOUT_URL_HERE' %}
{% endunless %}

{% unless checkout_button_selector %}
  {% assign checkout_button_selector = '[type="submit"][name="checkout"]' %}
{% endunless %}
<script>
  document.addEventListener("DOMContentLoaded", function () {

    var debug = true ? console.log.bind(console, '[DEBUG][KonnektiveCart]') : function () {};

    debug('Script loaded');

    window.KonnektiveCart = function (options) {


      var self = {};


      function productIdsWithQuantities() {
        {%- assign added_first = false -%}
        return {
          {%- for item in cart.items -%}
            {%- if item.variant.metafields.productId.productId -%}
          {%- if added_first %},{% endif -%}
            {%- if item.selling_plan_allocation -%}
          "{{ item.variant.metafields.productId.productId}}{{"|"}}{{item.selling_plan_allocation.selling_plan.name | url_encode}}": {{ item.quantity | json }}
          {%- else -%}
          "{{ item.variant.metafields.productId.productId }}": {{ item.quantity | json }}
          {% endif -%}
            {%- assign added_first = true -%}
          {%- endif -%}
          {%- endfor -%}
        };
      }   
      
// The Liquid filter 'map' lets you drill into nested object properties. We can use this to get an array of tag arrays.
// The JSON Liquid filter will turn any Liquid variable into a legal Javascript variable.
const itemProductTags = {{ cart.items | map: 'product'| map: 'tags' | json }}

// Check on our variables
console.log('All product tag arrays', itemProductTags)
console.log('Results of tagCheck()', tagCheck(itemProductTags, 'create-a-tag') )

function tagCheck(tagsList, targetTag){
  // Checks to see if the targetTag appears in all, some or none of the tag arrays.
  // tagsList will be an array of arrays

  var targetInAny = false;
  var targetInAll = true;

  for(var i=0; i<tagsList.length; i++){
    var tags = tagsList[i];
    if(tags.indexOf(targetTag) != -1){
      // Found the tag - this targetTag appears in at least one product-tag list
      targetInAny = true;
    }
    else{
     // Did not find the tag - this targetTag is NOT in every product-tag list
     targetInAll = false;
    }
  }

  // Returns an object specifying if we found the target in any, all or none of the lists
  return { targetInAny: targetInAny, targetInAll: targetInAll, targetInNone: !targetInAny }
}
      function init() {
        self.options = Object.assign({
          products: productIdsWithQuantities(),
          tags: tagCheck(itemProductTags, 'create-a-tag'),
          checkoutButtonSelector: '{{ checkout_button_selector }}',
          checkoutUrl: '{{ checkout_url }}',
        }, options);

        self.$checkoutButton = $(self.options.checkoutButtonSelector);

        debug('Initialized with options', self.options);
        
        
       var isTaggable = tagCheck(itemProductTags,'create-a-tag')
       if(isTaggable.targetInAll)
       		inject();
       
      }


      function inject() {
        debug('Inject');
        self.$checkoutButton.on('click', checkout);
      }


      function checkout(event) {
        var checkoutUrl = getCheckoutURL(self.options.products);
        debug('Checkout ->', checkoutUrl);
        event.preventDefault();
        window.location.href = checkoutUrl;
      }
      
      function getCartCookie(name) {
       var match = document.cookie.match(new RegExp('(^| )' + name + '=([^;]+)'));
        if (match){ 
          return match[2];
          }
 	  }

      function getCheckoutURL(products) {
         cookie = getCartCookie('cart');
        var urlLineItems = Object.keys(products).reduce(function (output, productId) {
          var quantity = products[productId];
          return output.concat([ productId + ':' + quantity ]);
        }, []).join(';');

        return self.options.checkoutUrl + '?products=' + urlLineItems + '&cartId='+cookie;
      }



      init();

      return self;

    };

    var instance = new KonnektiveCart();

  });

</script>