class User < ApplicationRecord
  has_secure_password

  validates :username, presence: true, length: { minimum: 3, maximum: 50 }
  validates :email, presence: true, 
                    uniqueness: { case_sensitive: false },
                    format: { with: URI::MailTo::EMAIL_REGEXP }
  validates :password, length: { minimum: 6 }, if: -> { new_record? || !password.nil? }

  before_save { self.email = email.downcase }

  def admin?
    admin
  end
end