# == Sending Messages:
# To send Messages via contact forms you can create your form fields in the config.yml
# 
# === Example:
# Make an Element with this options inside your @elements.yml file:
#
#   - name: contactform
#     contents:
#     - name: mail_to
#       type: EssenceText
#     - name: subject
#       type: EssenceText
#     - name: mail_from
#       type: EssenceText
#     - name: success_page
#       type: EssenceText
#
# The fields +mail_to+, +mail_from+, +subject+ and +success_page+ are recommended.
# The +Alchemy::MessagesController+ uses them to send your mails. So your customer has full controll of these values inside his contactform element.
# 
# Then make a page layout for your contact page in the +page_layouts.yml+ file:
# 
#   - name: contact
#     unique: true
#     cache: false
#     elements: [pageheading, heading, contactform]
#     autogenerate: [contactform]
#
# Disabling the page caching is stronlgy recommended!
#
# The editor view for your element should have this layout:
# 
#   <%= render_essence_editor_by_name(element, 'mail_from') %>
#   <%= render_essence_editor_by_name(element, 'mail_to') %>
#   <%= render_essence_editor_by_name(element, 'subject') %>
#   <%= page_selector(element, 'success_page', :page_attribute => :urlname) %>
# 
# Please have a look at the +alchemy/config/config.yml+ file for further Message settings.

module Alchemy
  class MessagesController < Alchemy::BaseController

    before_filter :get_page, :except => :create

    helper 'alchemy/pages'

    def index #:nodoc:
      redirect_to show_page_path(:urlname => @page.urlname, :lang => multi_language? ? @page.language_code : nil)
    end

    def new #:nodoc:
      @message = Message.new
      render :template => 'alchemy/pages/show', :layout => layout_for_page
    end

    def create #:nodoc:
      @message = Message.new(params[:message])
      @message.ip = request.remote_ip
      @element = Element.find_by_id(@message.contact_form_id)
      @page = @element.page
      @root_page = @page.get_language_root
      if @message.valid?
        Messages.contact_form_mail(@message, mail_to, mail_from, subject).deliver
        redirect_to_success_page
      else
        render :template => 'alchemy/pages/show', :layout => layout_for_page
      end
    end

    private

    def mailer_config
      Alchemy::Config.get(:mailer)
    end

    def mail_to
      @element.ingredient("mail_to")
    rescue
      mailer_config[:mail_to]
    end

    def mail_from
      @element.ingredient("mail_from")
    rescue
      mailer_config[:mail_from]
    end

    def subject
      @element.ingredient("subject")
    rescue
      mailer_config[:subject]
    end

    def redirect_to_success_page
      if @element.ingredient("success_page")
        urlname = @element.ingredient("success_page")
      elsif mailer_config[:forward_to_page] && mailer_config[:mail_success_page]
        urlname = Page.find_by_urlname(mailer_config[:mail_success_page]).urlname
      else
        flash[:notice] = t(:success, :scope => 'contactform.messages')
        urlname = Page.language_root_for(session[:language_id]).urlname
      end
      redirect_to show_page_path(:urlname => urlname, :lang => multi_language? ? session[:language_code] : nil)
    end

    def get_page
      @page = Page.find_by_page_layout_and_language_id(mailer_config[:page_layout_name], session[:language_id])
      raise "Page for page_layout #{mailer_config[:page_layout_name]} not found" if @page.blank?
      @root_page = @page.get_language_root
    end

  end
end