module ContestantsConcern
  extend ActiveSupport::Concern

  def ranked_contestants(contest)
    if contest.ranking_mode == "actual"
      contest.contestants.sort_by { |contestant| [
        -contestant.completions.where(remaining_pieces: nil).size,
        (contestant.completions.where(remaining_pieces: nil).size == @contest.puzzles.length ? 1 : 0) * contestant.time_seconds,
        contestant.completions.size > 0 && contestant.completions[-1].remaining_pieces ? contestant.completions[-1].remaining_pieces : 1000000,
        contestant.time_seconds
      ] }
    elsif contest.ranking_mode == "theorical"
      contest.contestants.sort_by { |contestant| contestant.completions.map { |completion| completion.projected_time }.sum }
    end
  end
end