class ChatMessage < ApplicationRecord
  belongs_to :chat_room
  belongs_to :sender, class_name: "Character", optional: true
  belongs_to :target, class_name: "Character", optional: true

  validates :body, length: { minimum: 1, maximum: 255 }
  validate :sender_has_access

  private
    def sender_has_access
      if sender && !sender.user.has_permission_or_higher?(self.chat_room.permission_level)
        errors.add(:chat, "You don't have permission to send that chat.")
      end
    end
end