# Customer region preference — the anchor for currency, prices and shipping.
#
# A cart's currency and market are fixed by Spree at CREATION and cannot be
# changed afterwards, so the choice has to exist before the cart does. Holding it
# on the customer is what makes that possible: sign in, and every cart from then
# on is created in the right market without asking again.
#
# Stock Spree's store API neither permits nor serializes public_metadata — a
# PATCH carrying it answers 200 and saves nothing, the same silent drop that
# hides a bad address label. This adds both.
#
# prepend, not class_eval: permitted_params is defined directly on that
# controller, so redefining it in place would send `super` past the original and
# drop every other permitted field.
#
# Bind-mounted — the prebuilt ghcr.io/spree/spree image mounts no app code, so
# this file needs its own entry in docker-compose.yml's web volumes block.

module PakJabit
  module CustomerPublicMetadata
    def permitted_params
      super.merge(params.permit(public_metadata: {}))
    end
  end
end

Rails.application.config.to_prepare do
  unless Spree::Api::V3::Store::CustomersController.include?(PakJabit::CustomerPublicMetadata)
    Spree::Api::V3::Store::CustomersController.prepend(PakJabit::CustomerPublicMetadata)
  end

  Spree::Api::V3::CustomerSerializer.class_eval do
    typelize public_metadata: 'Record<string, unknown>'
    attribute :public_metadata do |user|
      user.public_metadata || {}
    end
  end
end