class ExtensionMailerGenerator

def add_options!(opt)
  opt.separator ''
  opt.separator 'Options:'
  opt.on("--with-test-unit",
         "Use Test::Unit tests instead sof RSpec.") { |v| options[:with_test_unit] = v }
end

def banner
  "Usage: #{$0} #{spec.name} ExtensionName #{spec.name.camelize}Name [options]"
end

def destination_root
  File.join(Rails.root, extension_path)
end

def extension_path
  File.join('vendor', 'extensions', @extension_name.underscore)
end

def extension_uses_rspec?
  File.exists?(File.join(destination_root, 'spec')) && !options[:with_test_unit]
end

def initialize(runtime_args, runtime_options = {})
  runtime_args = runtime_args.dup
  @extension_name = runtime_args.shift
  super(runtime_args, runtime_options)
end

def manifest
  if extension_uses_rspec?
    rspec_manifest
  else
    super
  end
end

def rspec_manifest
  record do |m|
    # Check for class naming collisions.
    m.class_collisions class_path, class_name
    # Mailer, view, test, and fixture directories.
    m.directory File.join('app/models', class_path)
    m.directory File.join('app/views', file_path)
    # Mailer class and unit test.
    m.template "mailer:mailer.rb",    File.join('app/models', class_path, "#{file_name}.rb")
    # View template and fixture for each action.
    actions.each do |action|
      relative_path = File.join(file_path, action)
      view_path     = File.join('app/views', "#{relative_path}.erb")
      m.template "mailer:view.erb", view_path,
                 :assigns => { :action => action, :path => view_path }
    end
  end
end