module Goldberg
  class ControllerActionsController < ApplicationController
    include Goldberg::Controller
    
    # GETs should be safe (see http://www.w3.org/2001/tag/doc/whenToUseGet.html)
    verify :method => :post, :only => [ :destroy, :create, :update ],
    :redirect_to => { :action => :list }


    def index
      list
      render :action => 'list'
    end


    def list
      @controller_actions = ControllerAction.find(:all, :order => 'name')
    end


    def show
      @controller_action = ControllerAction.find(params[:id])
      if @controller_action.permission_id
        @permission = Permission.find(@controller_action.permission_id)
      else
        @permission = Permission.new(:id => nil, :name => '(default)')
      end
    end


    def new
      @controller_action = ControllerAction.new
      foreign
    end


    def new_for
      @controller_action = ControllerAction.new
      @controller_action.site_controller_id = params[:id]
      @site_controller = SiteController.find(params[:id])
      if @site_controller
        @actions = class_actions(@site_controller.name)
      end
      foreign
      render :action => 'new'
    end


    def create
      if params[:controller_action][:specific_name] and 
          params[:controller_action][:specific_name].length > 0
        params[:controller_action][:name] = 
          params[:controller_action][:specific_name]
      end
      @controller_action = ControllerAction.new(params[:controller_action])
      if @controller_action.save
        flash[:notice] = 'ControllerAction was successfully created.'
        Role.rebuild_cache
        redirect_to :controller => 'site_controllers', :action => 'show',
        :id => @controller_action.site_controller_id
      else
        foreign
        render :action => 'new'
      end
    end


    def edit
      @controller_action = ControllerAction.find(params[:id])
      foreign
    end


    def update
      @controller_action = ControllerAction.find(params[:id])
      if @controller_action.update_attributes(params[:controller_action])
        flash[:notice] = 'ControllerAction was successfully updated.'
        Role.rebuild_cache
        redirect_to :controller => 'site_controllers', :action => 'show',
        :id => @controller_action.site_controller_id
      else
        foreign
        render :action => 'edit'
      end
    end


    def destroy
      @controller_action = ControllerAction.find(params[:id])
      site_controller_id = @controller_action.site_controller_id
      @controller_action.destroy
      Role.rebuild_cache
      redirect_to :controller => 'site_controllers', :action => 'show',
      :id => @controller_action.site_controller_id
    end


    protected

    
    def foreign
      @controllers = SiteController.find(:all, :order => 'name')
      
      @permissions = Permission.find(:all, :order => 'name')
      @permissions.unshift Permission.new(:id => nil, :name => '(default)')
    end


    def class_actions(classname)
      classes = SiteController.classes
      actions = Hash.new()

      if classes.has_key? classname
        controller = classes[classname]

        for method in controller.public_instance_methods(false) do
          actions[method] = true
        end
      end

      action_collection = Array.new
      for action in actions.keys.sort do
        action_collection << ControllerAction.new(:name => action)
      end

      return action_collection
    end
    
  end
end