class Manager < ActiveRecord::Base
  validates_presence_of :password
  validates_presence_of :email
  validates_email_format_of :email

  attr_accessor :password_confirmation
  validates_confirmation_of :password

  def self.verify(email, password)
    Manager.find( :first, :conditions => { :email => email, :password => password } )
  end

  def self.authenticate(email, password)
    user = self.find_by_name(email)
    if user
      expected_password = encrypted_password(password, user.salt)
      if user.hashed_password != expected_password
        user = nil
      end
    end
    user
  end

  def password
    @password
  end

  def password=(pwd)
    @password = pwd
    return if pwd.blank?
    create_new_salt
    self.hashed_password = Manager.encrypted_password(self.password, self.salt)
  end

  private

  def self.encrypted_password(password, salt)
    string_to_hash = password + "scramble" + salt
    Digest::SHA1.hexdigest(string_to_hash)
  end

  def create_new_salt
    self.salt = self.object_id.to_s + rand.to_s
  end

end