# frozen_string_literal: true

require "rails"
require "action_view/component"

module ActionView
  module Component
    class Engine < Rails::Engine # :nodoc:
      config.action_view_component = ActiveSupport::OrderedOptions.new

      initializer "action_view_component.set_configs" do |app|
        options = app.config.action_view_component

        options.show_previews = Rails.env.development? if options.show_previews.nil?

        if options.show_previews
          options.preview_path ||= defined?(Rails.root) ? "#{Rails.root}/test/components/previews" : nil
        end

        ActiveSupport.on_load(:action_view_component) do
          options.each { |k, v| send("#{k}=", v) }
        end
      end

      initializer "action_view_component.set_autoload_paths" do |app|
        options = app.config.action_view_component

        if options.show_previews && options.preview_path
          ActiveSupport::Dependencies.autoload_paths << options.preview_path
        end
      end

      initializer "action_view_component.eager_load_actions" do
        ActiveSupport.on_load(:after_initialize) do
          ActionView::Component::Base.descendants.each(&:compile)
        end
      end

      initializer "action_view_component.compile_config_methods" do
        ActiveSupport.on_load(:action_view_component) do
          config.compile_methods! if config.respond_to?(:compile_methods!)
        end
      end

      initializer "action_view_component.monkey_patch_render" do
        ActiveSupport.on_load(:action_view) do
          ActionView::Base.prepend ActionView::Component::RenderMonkeyPatch
        end
      end

      config.after_initialize do |app|
        options = app.config.action_view_component

        if options.show_previews
          app.routes.prepend do
            get "/rails/components"       => "rails/components#index", :internal => true
            get "/rails/components/*path" => "rails/components#previews", :internal => true
          end
        end
      end
    end
  end
end