antenna_controller.rb

require 'rails/generators'

class AntennaGenerator < Rails::Generators::NamedBase
  source_root File.expand_path('../templates', __FILE__)

  argument :actions, type: :array, default: [], banner: "action action"
  class_option :skip_routes,
    type: :boolean, desc: "Don't add routes to config/routes.rb."

  check_class_collision suffix: "Controller"

  def add_routes
    return if options[:skip_routes]
    return if actions.empty?

    route generate_routing_code
  end

  def create_controller_files
    template "controller.rb",
      File.join("app/controllers", class_path, "#{file_name}_controller.rb")
  end

  def create_spec_files
    template "request_spec.rb",
      File.join("spec/requests", class_path, "#{file_name}_spec.rb")
  end

  private

  def remove_possible_suffix(name)
    name.sub(/_?controller$/i, "")
  end

  def generate_routing_code
    depth = 0
    lines = []

    # Create 'namespace' ladder
    # namespace :foo do
    #   namespace :bar do
    regular_class_path.each do |ns|
      lines << indent("namespace :#{ns} do\n", depth * 2)
      depth += 1
    end

    # Create route
    #     get 'baz/index'
    #     get 'baz/show'
    joined_actions = actions.join(' ')

    lines << "resources :#{file_name}, only: %i[#{joined_actions}]"
    # resources :file_name, only: %i[actions.map(&:to_sym).join(' ')]
    # actions.each do |action|
    #   lines << indent(%{get '#{file_name}/#{action}'\n}, depth * 2)
    # end

    # Create `end` ladder
    #   end
    # end
    until depth.zero?
      depth -= 1
      lines << indent("end\n", depth * 2)
    end

    lines.join
  end
end