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mirror of https://github.com/LaCasemate/fab-manager.git synced 2024-12-04 15:24:23 +01:00
fab-manager/app/services/cart/add_item_service.rb
2023-02-15 10:29:46 +01:00

53 lines
1.4 KiB
Ruby

# frozen_string_literal: true
# Provides methods for add order item to cart
class Cart::AddItemService
def call(order, orderable, quantity = 1)
return order if quantity.to_i.zero?
item = case orderable
when Product
add_product(order, orderable, quantity)
when Slot
add_slot(order, orderable)
else
raise Cart::UnknownItemError
end
order.created_at = Time.current if order.order_items.length.zero?
ActiveRecord::Base.transaction do
item.save
Cart::UpdateTotalService.new.call(order)
order.save
end
order.reload
end
private
def add_product(order, orderable, quantity)
raise Cart::InactiveProductError unless orderable.is_active
item = order.order_items.find_by(orderable: orderable)
quantity = orderable.quantity_min > quantity.to_i && item.nil? ? orderable.quantity_min : quantity.to_i
if item.nil?
item = order.order_items.new(quantity: quantity, orderable: orderable, amount: orderable.amount || 0)
else
item.quantity += quantity
end
raise Cart::OutStockError if item.quantity > orderable.stock['external']
item
end
def add_slot(order, orderable)
item = order.order_items.find_by(orderable: orderable)
item = order.order_items.new(quantity: 1, orderable: orderable, amount: orderable.amount || 0) if item.nil?
item
end
end