Migrating a purchase quantity limit script

Riskant paar D6. Dit bestand en zijn tegenhanger zien er bijna hetzelfde uit en doen iets anders, dus lees ze allebei voordat je bepaalt welke jij hebt.

# GENERATED BY THE SHOPIFY SCRIPT CREATOR APP

class QuantityLimit < Campaign
  def initialize(condition, customer_qualifier, cart_qualifier, line_item_selector, limit_by, limit)
    super(condition, customer_qualifier, cart_qualifier, line_item_selector)
    @limit_by = limit_by
    @limit = limit
  end

  def run(cart)
    return unless qualifies?(cart)
    to_delete = []
    counts = {}
    cart.line_items.each_with_index do |item, index|
      next unless @line_item_selector.nil? || @line_item_selector.match?(item)
      key = @limit_by == :product ? item.variant.product.id : item.variant.id
      counts[key] = 0 unless counts[key]
      max_amount = @limit - counts[key]
      if max_amount <= 0
        to_delete << index
      elsif item.quantity > max_amount
        item.split(take: max_amount)
        counts[key] += max_amount
      else
        counts[key] += item.quantity
      end
    end
    to_delete.reverse.each { |index| cart.line_items.delete_at(index) }
  end
end

CAMPAIGNS = [
  QuantityLimit.new(:all, nil, nil, ProductTagSelector.new(:does, :match, ["limited"]), :variant, 2),
].freeze

CAMPAIGNS.each do |campaign|
  campaign.run(Input.cart)
end

Output.cart = Input.cart