ENV["RAILS_ENV"] ||= "test"

require File.expand_path("dummy/config/environment.rb", __dir__)

require "solidus_support/extension/feature_helper"

Dir[File.join(File.dirname(__FILE__), "support/**/*.rb")].each { |f| require f }

$ gem install solidus_cmd
$ solidus extension my_extension

module Spree
  class FeedProduct
    attr_reader :product

    def initialize(product)
      @product = product
    end

    def id
      product.id
    end

    def title
      product.name
    end

    # ...
  end
end

Spree::FeedProduct.class_eval do
  def description
    product.description
  end
end

module AcmeStore
  module Spree
    module FeedProduct
      module AddDescription
        def description
          product.description
        end

        ::Spree::FeedProduct.prepend self
      end
    end
  end
end

# app/models/acme_store/feed_product.rb
module AcmeStore
  class FeedProduct < Spree::FeedProduct
    def description
      product.description
    end
  end
end

# config/intitializers/solidus_product_feed.rb
SolidusProductFeed.configure do |config|
  config.feed_product_class = 'AcmeStore::FeedProduct'
end

# Somewhere in an extension:
Spree::Event.fire(
  'subscription.renewed', 
  subscription: @subscription
)

# Somewhere in my app:
Spree::Event.subscribe 'subscription.renewed' do |event|
  subscription = event.payload[:subscription]
  SubscriptionsMailer.thank_you_email(subscription).deliver_now
end