class User < ActiveRecord::Base
#needs to be commented out for heroku
	#attr_accessible :first_name, :last_name, :email, :password, :password_confirmation
	attr_accessor :remember_token, :activation_token
  before_save   :downcase_email
  before_create :create_activation_digest
	#before_save { self.email = email.downcase }
	validates :first_name, presence: true, length: { maximum: 50 }
	validates :last_name, presence: true, length: { maximum: 50 }
	VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
	validates :email, presence: true, 
					  length: {maximum: 255}, 
					  format: { with: VALID_EMAIL_REGEX }, 
					  uniqueness: { case_sensitive: false }
	has_secure_password
	validates :password, presence: true, length: { minimum: 6 }

	def User.new_token
    	SecureRandom.urlsafe_base64
  end

  def User.digest(string)
    	cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST :
                                                  BCrypt::Engine.cost
    	BCrypt::Password.create(string, cost: cost)
  end

  def authenticated?(attribute, token)
    digest = send("#{attribute}_digest")
    return false if digest.nil?
    BCrypt::Password.new(digest).is_password?(token)
  end

	private

    # Converts email to all lower-case.
    def downcase_email
      self.email = email.downcase
    end

    # Creates and assigns the activation token and digest.
    def create_activation_digest
      self.activation_token  = User.new_token
      self.activation_digest = User.digest(activation_token)
    end
end