class Devise::RegistrationsController < ApplicationController
  prepend_before_filter :require_no_authentication, :only => [ :new, :create, :cancel ]
  prepend_before_filter :authenticate_scope!, :only => [:edit, :update, :destroy]
  include Devise::Controllers::InternalHelpers

  # GET /resource/sign_up
  def new
    build_resource({})
    render_with_scope :new
  end

  # POST /resource/sign_up
  def create
    build_resource

    if resource.save
      set_flash_message :notice, :signed_up
      sign_in_and_redirect(resource_name, resource)
    else
      clean_up_passwords(resource)
      render_with_scope :new
    end
  end

  # GET /resource/edit
  def edit
    render_with_scope :edit
  end

  # PUT /resource
  def update
    if resource.update_with_password(params[resource_name])
      set_flash_message :notice, :updated
      sign_in resource_name, resource, :bypass => true
      redirect_to after_update_path_for(resource)
    else
      clean_up_passwords(resource)
      render_with_scope :edit
    end
  end

  # DELETE /resource
  def destroy
    resource.destroy
    set_flash_message :notice, :destroyed
    sign_out_and_redirect(self.resource)
  end

  # GET /resource/cancel
  # Forces the session data which is usually expired after sign
  # in to be expired now. This is useful if the user wants to
  # cancel oauth signing in/up in the middle of the process,
  # removing all OAuth session data.
  def cancel
    expire_session_data_after_sign_in!
    redirect_to new_registration_path(resource_name)
  end

  protected

    # Build a devise resource passing in the session. Useful to move
    # temporary session data to the newly created user.
    def build_resource(hash=nil)
      hash ||= params[resource_name] || {}
      self.resource = resource_class.new_with_session(hash, session)
    end

    # Authenticates the current scope and gets a copy of the current resource.
    # We need to use a copy because we don't want actions like update changing
    # the current user in place.
    def authenticate_scope!
      send(:"authenticate_#{resource_name}!")
      self.resource = resource_class.find(send(:"current_#{resource_name}").id)
    end
end