class User < Sequel::Model

  plugin :validation_helpers

  attr_accessor :password
  attr_accessor :password_confirmation

  def validate
    validates_presence [:email, :username]
    validates_unique [:email, :username]
  end

  def after_create
    self.crypted_password = encrypt(password)
    self.created_at = Time.now
    @new = false
    save
  end

  def authenticated?(pass)
    crypted_password == encrypt(pass)
  end

  def self.authenticate(hash)
    mail, pass = hash['login'], hash['password']
    if user = User[:email => mail]
      return user unless pass
      user if user.authenticated?(pass)
    end
  end

  def encrypt(password)
    self.class.encrypt(password, salt)
  end

  def self.encrypt(password, salt)
    Digest::SHA1.hexdigest("--#{salt}--#{password}--")
  end

end