class Activity < ApplicationRecord
  include HasWhatnot

  belongs_to :location, optional: true
  validates :gid, :name, :description, presence: true

  attribute :innate, :boolean, default: false

  def costs
    costs = []
    self.whatnot[:cost].each do |cost|
      case cost[:type]
      when "item"
        costs.push "#{cost[:quantity]} #{Item.find_by_gid(cost[:gid]).name}"
      end
    end
    costs
  end

  def requirements
    requirements = []
    self.whatnot[:requirements].each do |req|
      case req[:type]
      when "skill"
        requirements.push "level #{req[:level]} #{Skill.find_by_gid(req[:gid]).name}"
      when "hearth_amenity"
        requirements.push "level #{req[:level]} #{HearthAmenity.find_by_gid(req[:gid]).name}"
      else
        raise "Invalid requirement type string (#{req[:type]})"
      end
    end
    requirements
  end
end