session_form.cr

class SessionForm < LuckyRecord::VirtualForm
  virtual email : String
  virtual password : String

  def submit
    user = find_user
    validate_required email, password
    validate_user_and_password_match(user)
    
    yield self, user
  end

  private def validate_user_and_password_match(user : User?)
    # Usually ok to say what went wrong: https://github.com/luckyframework/lucky_cli/issues/192
    if user && !user.valid_password?(password.value.to_s)
      password.add_error "is incorrect" 
    elsif user.nil?
      email.add_error "was not found"
    end
  end

  private def find_user
    email.value.try do |value|
      UserQuery.new.email(value).first?
    end
  end
end