require 'facet/kernel/constant'
require 'facet/time/stamp'

require 'nitro/controller'

# Provides an automatically generated Administration
# interface.

class AdminController < Nitro::Controller
  
  # Run a simple security check function before each action
  
  before :check_security, :except => [ :denied ]
  
  # scaffold all the classes
  
  scaffold_all
    
  def self.setup_template_root(path)
    super
    @template_root << File.join(File.dirname(__FILE__), 'template')
  end

  # default method for controller
  
  def index
    @classes = self.class.scaffolding_classes.keys.sort { |c1, c2| c1.name <=> c2.name }
    @settings = Configuration.settings.sort { |s1, s2| "#{s1.owner}.#{s1.name}" <=> "#{s2.owner}.#{s2.name}" }
  end
  
  # Delete all instances of the class.
  # Useful in development mode.
  
  def delete_all(klass)
    constant(klass).delete_all
    redirect_to_referer
  end
  
  # Drop the schema (typically the DB tables) used to 
  # store the class instances.
  
  def destroy(klass)
    constant(klass).destroy
    redirect_to_referer
  end
  
  # fetch the css for this controller
  # checks for a /system.css file and uses that if available
  # otherwise uses system.css from the part/admin dir
  
  def stylesheet(sheet='system')
    sheet << ".css"
    [Nitro::Server.public_root, File.dirname(__FILE__)].each do |path|
      css_file = File.join(path, sheet)  
      if File.exists? css_file
        response.content_type = 'text/css'
        @out << File.read(css_file)
        raise Nitro::RenderExit
      end
    end
    raise RenderExit
  end
  alias_action :stylesheets, :stylesheet
  
  private
  
  # Overload in your application to suit your
  # needs. The default implementation does NOT apply security
  # in debug mode.The default implementation requires the
  # existense of an :ADMIN key in the session, so you can
  # easily integrate this in your user/roles management code.
    
  def check_security
    return true if Nitro::Runner.mode == :debug
    redirect 'denied' unless session[:ADMIN]
  end
  
end

# * George Moschovitis <gm@navel.gr>