Hide duration variant option

booking-form.liquid

// ============ Booking Form Snippet =============

{% if product.metafields.bookthatapp.config %}
<div class="booking-form">
    <div>
        {% capture attribute %}booking-start{% endcapture %}
        <label for="{{ attribute }}-{{ product.handle }}">From:</label>
        <input id="{{ attribute }}-{{ product.handle }}" type="text" name="properties[From]" size="12" class="datepicker bta required bta-load-enable bta-dp-start" disabled="disabled"
               data-handle="{{ product.handle }}" data-variant="{{ product.selected_or_first_available_variant.id }}"
               data-bta-product-config="{{ product.metafields.bookthatapp.config }}"
               data-bta-variant-config="{% for variant in product.variants %}{{ variant.id }}:{{ variant.metafields.bookthatapp.config }}{% unless forloop.last %},{% endunless %}{% endfor %}"
               data-bta-range-partner-id="#booking-finish-{{ product.handle }}"
               data-bta-range-days-max="0" data-bta-range-days-min="0" />
    </div>
    <div>
        {% capture attribute %}booking-finish{% endcapture %}
        <label for="{{ attribute }}-{{ product.handle }}">To:</label>
        <input id="{{ attribute }}-{{ product.handle }}" type="text" name="properties[To]" size="12" class="datepicker bta required bta-load-enable bta-dp-finish" disabled="disabled"
               data-bta-range-partner-id="#booking-start-{{ product.handle }}" />
    </div>
    <div class="bta-validation-messages" style="display:none">
      <p class="bta-validation-date-missing">Please select a date</p>
    </div>
</div>

<script>
  // rental product behaviour
  var ProductRental = function() {
    _this = this;
    
    this.configs = {};

    this.init = function() {
      '{{ product.metafields.bookthatapp.config }}'.replace(new RegExp("([^?=&]+)(=([^&]*))?", "g"), function($0, $1, $2, $3) {_this.configs[$1] = $3;});
      _this.hideDurationOptionSelect();
    };
    
    this.hideDurationOptionSelect = function() {
      // hide option for duration (bypass .selector-wrapper inside booking form)
      $('.selector-wrapper:nth-child(' + _this.configs['duration_option_position'] + ')').filter(function(index) {
        return $(this).parents('.booking-form').length == 0;
      }).hide();  
    };
  }

  document.addEventListener("DOMContentLoaded", function(event) { 
    new ProductRental().init();
  });

  var bta = {
  	productId: {{ product.id }}
  }
</script>
{% endif %}