require 'net/smtp'
require 'mailfactory'
module Merb
  class Mailer

    shared_accessor :config

    def sendmail
      sendmail = IO.popen("sendmail #{@mail.to}", 'w+')
      sendmail.puts @mail.to_s
      sendmail.close
    end

    # :plain, :login, or :cram_md5
    def net_smtp
      Net::SMTP.start(config[:host], config[:port].to_i, config[:domain],
                      config[:user], config[:pass], (config[:auth].intern||:plain)) { |smtp|
        smtp.send_message(@mail.to_s(), @mail.from, @mail.to)
      }
    end

    def deliver!
      config == :sendmail ? sendmail : net_smtp
    end

    def initialize(o={})
      self.config = :sendmail if config.nil?
      @mail = returning MailFactory.new() do |m|
        m.to = o[:to]
        m.from = o[:from]
        m.subject = o[:subject]
        m.text = o[:body]
        m.html = o[:html] if o[:html]
      end
    end

  end
end

m = Merb::Mailer.new :to => 'foo@bar.com',
                     :from => 'bar@foo.com',
                     :subject => 'Welcome to whatever!',
                     :body => partial(:sometemplate)
m.deliver!

Merb::Mailer.config = {
  :host=>'smtp.yourserver.com',
  :port=>'25',
  :user=>'user',
  :pass=>'pass',
  :auth=>:plain # :plain, :login, or :cram_md5, default :plain
}