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# This class takes a collection of installments and populates a new spree
# order with the correct contents based on the subscriptions associated to the
# intallments. This is to group together subscriptions being
# processed on the same day for a specific user
module SolidusSubscriptions
class Checkout
# @return [Array<Installment>] The collection of installments to be used
# when generating a new order
attr_reader :installments
delegate :user, to: :subscription
# Get a new instance of a Checkout
#
# @param installments [Array<Installment>] The collection of installments
# to be used when generating a new order
def initialize(installments)
@installments = installments
raise UserMismatchError.new(installments) if different_owners?
end
# Generate a new Spree::Order based on the information associated to the
# installments
#
# @return [Spree::Order]
def process
populate
# Installments are removed and set for future processing if they are
# out of stock. If there are no line items left there is nothing to do
return if installments.empty?
if checkout
Config.success_dispatcher_class.new(installments, order).dispatch
return order
end
# A new order will only have 1 payment that we created
if order.payments.any?(&:failed?)
Config.payment_failed_dispatcher_class.new(installments, order).dispatch
installments.clear
nil
end
ensure
# Any installments that failed to be processed will be reprocessed
unfulfilled_installments = installments.select(&:unfulfilled?)
if unfulfilled_installments.any?
Config.failure_dispatcher_class.
new(unfulfilled_installments, order).dispatch
end
end
# The order fulfilling the consolidated installment
#
# @return [Spree::Order]
def order
@order ||= Spree::Order.create(
user: user,
email: user.email,
store: subscription.store || Spree::Store.default,
subscription_order: true
)
end
private
def checkout
order.update!
apply_promotions
order.next! # cart => address
order.ship_address = ship_address
order.next! # address => delivery
order.next! # delivery => payment
create_payment
order.next! # payment => confirm
# Do this as a separate "quiet" transition so that it returns true or
# false rather than raising a failed transition error
order.complete
end
def populate
unfulfilled_installments = []
order_line_items = installments.flat_map do |installment|
line_items = installment.line_item_builder.spree_line_items
unfulfilled_installments.push(installment) if line_items.empty?
line_items
end
# Remove installments which had no stock from the active list
# They will be reprocessed later
@installments -= unfulfilled_installments
if unfulfilled_installments.any?
Config.out_of_stock_dispatcher_class.new(unfulfilled_installments).dispatch
end
return if installments.empty?
order_builder.add_line_items(order_line_items)
end
def order_builder
@order_builder ||= OrderBuilder.new(order)
end
def subscription
installments.first.subscription
end
def ship_address
subscription.shipping_address || user.ship_address
end
def active_card
user.credit_cards.default.last
end
def create_payment
order.payments.create(
source: active_card,
amount: order.total,
payment_method: Config.default_gateway
)
end
def apply_promotions
Spree::PromotionHandler::Cart.new(order).activate
order.updater.update # reload totals
end
def different_owners?
installments.map { |i| i.subscription.user }.uniq.length > 1
end
end
end
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