require 'digest/md5'

class User < ActiveRecord::Base
  validates_presence_of :name
  has_many :feeds, :dependent => :destroy
  
  def self.new_account(name, pass, password_conf)
    return nil unless pass == password_conf
    User.create :name=>name, :password_hash=>password_to_salted_hash(pass)
  end
  
  def authorize(pass)
    return nil unless User.password_to_salted_hash(pass) == password_hash
    self
  end
  
  def self.password_to_salted_hash(pass)
    Digest::MD5.hexdigest(pass + $user_salt)
  end
  
  def to_s
    name
  end
end