class Table < ActiveRecord::Base
  extend FriendlyId
  friendly_id :title, use: :slugged
  #TODO has_many :moderators
  has_many :seats
  has_many :users, through: :seats
  has_many :games
  has_many :players, through: :games
  # belongs_to :token
  #TODO: Deprecated current_game_id from database.
  #      Instead calculate with self.current_game
  #
  #has_one :current_game, :class_name => "Game", :primary_key => "current_game_id"

  #TODO: Should these be part of Game initialize instead of callback?
  after_create :add_seats
  after_create :add_game # TODO decouple game from table

  # Returns the newest joinable table or creates a new table if none are found
  # scope :play_now, lambda { |user|
  #   where(status:nil).joins("LEFT OUTER JOIN players ON players.table_id = tables.id").group("tables.id").having("count(players) < 4").last || Table.create(title: "Game " + user.soft_token[0..4])
  # }
  scope :play_now, lambda { |user|
    # where(status:nil).joins("LEFT OUTER JOIN players ON players.game_id = games.id").group("games.id").having("count(players) < 4").last || Table.create(title: "Game " + user.soft_token[0..4])
    where(game:nil).last || Table.create(title: user.soft_token[0..4])
  }

  def user_count
    self.seats.map{|s| s.occupied? ? s : nil}.compact.count
  end

  def current_game
    self.games.last
  end


  def add_game
    self.games.create
    # game = self.games.new
    # game.
  end

  # private

  def add_seats
    return if self.seats.present?
    1.upto(4) do |i|
      self.seats.create!(position: i)
    end
  end

end