gistfile1.txt

## Check if Tournament has already started
    @tournament_not_started = true
    if TournamentSlot.where(tournament_id: @tournament.id, round: 0).present?
      @tournament_not_started = false
    end

## Tournament Start

    if @tournament.start && @tournament_not_started
      slots = TournamentSlot.where(tournament_id: @tournament.id, round: nil)

      if slots.count > 2
        rounds = 2
      end
      if slots.count > 4 
        rounds = 3 
      end
      if slots.count > 8 
        rounds = 4
      end
      if slots.count > 16
        rounds = 5
      end
      if slots.count > 32
        rounds = 6
      end
      if slots.count > 64
        rounds = 7
      end
      if slots.count > 128
        rounds = 8
      end
      if slots.count > 256
        rounds = 9
      end
      if slots.count > 512
        rounds = 10
      end
      if slots.count > 1024
        rounds = 11
      end

      @rounds = rounds 
      @bracket_size = 2**rounds 
      @after_filter_round_size = @bracket_size/2 
      filter_round_challengers = slots.count - @after_filter_round_size 
      filter_round_size = filter_round_challengers * 2 

## Filter Round
      round = 0

      @filter_round_participants = slots.first(filter_round_size) 
      @first_round_participants = slots - slots.first(filter_round_size)
      @filter_round_participants.each_slice(2).with_index do |slot, index| 
          TournamentSlot.create(tournament_id: slot.first.tournament_id, user_id: slot.first.user_id, round: round, pair: index + 1)
          TournamentSlot.create(tournament_id: slot.last.tournament_id, user_id: slot.last.user_id, round: round, pair: index + 1)
      end

## First Round
      round = 1

      if @first_round_participants.count.even?
        @pair_origin = filter_round_challengers/2
        @first_round_participants.each_slice(2).with_index do |slot, index| 
          TournamentSlot.create(tournament_id: slot.first.tournament_id, user_id: slot.first.user_id, round: round, pair: index + 1 + @pair_origin)
          TournamentSlot.create(tournament_id: slot.last.tournament_id, user_id: slot.last.user_id, round: round, pair: index + 1 + @pair_origin)
        end
      end

      if @first_round_participants.count.odd? 
        @pair_origin = filter_round_challengers/2
        @odd_individual = @first_round_participants.shift
        TournamentSlot.create(tournament_id: @odd_individual.tournament_id, user_id: @odd_individual.user_id, round: 1, pair: @pair_origin + 1)
        @new_pair_origin = @pair_origin + 1
        @first_round_participants.each_slice(2).with_index do |slot, index| 
          TournamentSlot.create(tournament_id: slot.first.tournament_id, user_id: slot.first.user_id, round: round, pair: index + 1 + @new_pair_origin)
          TournamentSlot.create(tournament_id: slot.last.tournament_id, user_id: slot.last.user_id, round: round, pair: index + 1 + @new_pair_origin)
        end
      end
    end
    @filter_round_slots = TournamentSlot.where(tournament_id: @tournament.id, round: 0) 
    @first_round_slots = TournamentSlot.where(tournament_id: @tournament.id, round: 1)