class Item < ApplicationRecord
  validates :name, presence: true

  belongs_to :move, optional: true
  validates :move, presence: true, if: :tm?

  validates :rs_description, presence: true, unless: :tm?
  validates :frlg_description, presence: true, unless: :tm?

  def description(game)
    if game == :emerald
      if not emerald_description.nil?
        emerald_description
      elsif not rs_description.nil?
        rs_description
      else
        move.description game
      end
    elsif game == :firered or game == :leafgreen
      if not frlg_description.nil?
        frlg_description
      else
        move.description game
      end
    else
      if not rs_description.nil?
        rs_description
      else
        move.description game
      end
    end
  end

  def icon_path
    if tm?
      "items/tms/#{move.move_type}.png"
    else
      "items/#{id}.png"
    end
  end
end