class StageGenerator < Merb::GeneratorBase
  
  attr_reader :controller_class_name,
              :controller_file_name,
              :controller_base_path,
              :controller_modules,
              :full_controller_const,
              :attributes,
              :resource_name,
              :resource_class_name,
              :resource_title_name,
              :resource_plural_name

  def initialize(runtime_args, runtime_options = {})
    @base = File.dirname(__FILE__)
    super
    name = runtime_args.shift
    @controller_file_name   = name.pluralize.snake_case.gsub("::", "/")
    unless @controller_file_name == File.basename(@controller_file_name)
      @controller_base_path   = controller_file_name.split("/")[0..-2].join("/")
    end

    @controller_modules     = name.to_const_string.split("::")[0..-2]
    @controller_class_name  = name.to_const_string.split("::").last.pluralize
    @resource_name = name.downcase
    @resource_class_name = @resource_name.to_const_string
    @resource_title_name = name.capitalize.snake_case
    @resource_plural_name = @resource_name.pluralize

    @full_controller_const = ((@controller_modules.dup || []) << @controller_class_name).join("::")

    @attributes = Hash[*(args.map{|a| a.split(":") }.flatten)]
  end

  def manifest
    record do |m|
      @m = m

      m.directory File.join("app/controllers", controller_base_path) if controller_base_path
      m.directory File.join("app/helpers", controller_base_path) if controller_base_path

      @assigns =  { :controller_modules    => controller_modules,
                    :controller_class_name => controller_class_name,
                    :controller_file_name  => controller_file_name,
                    :controller_base_path  => controller_base_path,
                    :full_controller_const => full_controller_const,
                    :resource_name => resource_name}

      sentinel = 'Merb::Router.prepare do |r|'
      m.gsub_file 'config/router.rb', /(#{Regexp.escape(sentinel)})/mi do |match|
        "#{match}\n  r.resources :#{resource_plural_name}\n"
      end

      copy_dirs
      copy_files
    end
  end

  protected

  def banner
    <<-EOS
    Stages a resources.  This includes the following:
    DataMapper Model
    Resource Controller
    Resource Views
    Resource Helpers (contains presentation code utilized by View)

    Example

    merb-gen stage post title:string content:text created_at:datetime

    USAGE: #{$0} #{spec.name} name"
    EOS
  end

  def route(m, resource_name)
  end

end