match_discounts.liquid

{% liquid
  assign discounts = shop.metafields.discount_kit.discount_information.value.discounts
  assign current_date = 'now' | date: '%s' | times: 1
  assign matched_config_ids = ""

  for discount in discounts
    assign config = discount.discountNode.config.value
    assign starts_at = discount.startsAt | date: '%s' | times: 1
    assign ends_at = discount.endsAt | date: '%s' | times: 1

    if ends_at > 0 and ends_at <= current_date
      continue
    endif

    if current_date <= starts_at
      continue
    endif

    if config.allowB2b != true
      if customer.b2b?
        continue
      endif
    endif

    if config.customerTags
      assign matching_tag = false

      for tag in customer.tags
        for customer_tag in config.customerTags
          if tag == customer_tag
            assign matching_tag = true
            break
          endif
        endfor
      endfor

      if matching_tag != true
        continue
      endif
    endif

    if config.marketHandles
      assign matching_market = false

      for market in config.marketHandles
        if market == localization.market.handle
          assign matching_market = true
          break
        endif
      endfor

      if matching_market != true
        continue
      endif
    endif

    if config.currencyCode
      if config.currencyCode != cart.currency.iso_code
        continue
      endif
    endif

    assign matched_config_ids = matched_config_ids | append: discount.id
    
    unless forloop.last
      assign matched_config_ids = matched_config_ids | append: ","
    endunless
  endfor


  echo matched_config_ids
%}

usage.js

document.addEventListener('discount_kit:ready', (data) => {console.log(data.detail.discounts)})

usage.liquid

{% capture matching_discount_ids %}
  {% render 'match_discounts' %}
{% endcapture %}
{% assign stripped_valid_discount_ids = matching_discount_ids | strip | strip_newlines | strip_html %}

{% for id in stripped_valid_discount_ids %}
  {% assign metafield_key = 'discount_' | append: id %}
  {% assign discount_configuration = shop.metafields.discount_kit[metafield_key].value %}
{% endfor %}