class ModifiedSixteenManMatchGeneration
    def initialize( tournament, weights: nil )
      @tournament = tournament
      @number_of_placers = @tournament.number_of_placers
      @weights = weights
    end

    def generate_matches
      rows = []
      generation_weights.each do |weight|
      	rows.concat(generate_match_rows_for_weight(weight))
      end
      rows
    end

    def generate_match_rows_for_weight(weight)
      rows = []
      round_one(weight, rows)
      round_two(weight, rows)
      round_three(weight, rows)
      round_four(weight, rows)
      round_five(weight, rows)
      rows
    end

    def round_one(weight, rows)
      rows << create_matchup_from_seed(1,16, "Bracket Round of 16", 1, 1,weight)
      rows << create_matchup_from_seed(8,9, "Bracket Round of 16", 2, 1,weight)
      rows << create_matchup_from_seed(5,12, "Bracket Round of 16", 3, 1,weight)
      rows << create_matchup_from_seed(4,14, "Bracket Round of 16", 4, 1,weight)
      rows << create_matchup_from_seed(3,13, "Bracket Round of 16", 5, 1,weight)
      rows << create_matchup_from_seed(6,11, "Bracket Round of 16", 6, 1,weight)
      rows << create_matchup_from_seed(7,10, "Bracket Round of 16", 7, 1,weight)
      rows << create_matchup_from_seed(2,15, "Bracket Round of 16", 8, 1,weight)
    end

    def round_two(weight, rows)
      rows << create_matchup(nil,nil,"Quarter",1,2,weight)
      rows << create_matchup(nil,nil,"Quarter",2,2,weight)
      rows << create_matchup(nil,nil,"Quarter",3,2,weight)
      rows << create_matchup(nil,nil,"Quarter",4,2,weight)
      rows << create_matchup(nil,nil,"Conso Round of 8",1,2,weight)
      rows << create_matchup(nil,nil,"Conso Round of 8",2,2,weight)
      rows << create_matchup(nil,nil,"Conso Round of 8",3,2,weight)
      rows << create_matchup(nil,nil,"Conso Round of 8",4,2,weight)
    end

    def round_three(weight, rows)
      rows << create_matchup(nil,nil,"Semis",1,3,weight)
      rows << create_matchup(nil,nil,"Semis",2,3,weight)
      rows << create_matchup(nil,nil,"Conso Quarter",1,3,weight)
      rows << create_matchup(nil,nil,"Conso Quarter",2,3,weight)
      rows << create_matchup(nil,nil,"Conso Quarter",3,3,weight)
      rows << create_matchup(nil,nil,"Conso Quarter",4,3,weight)
    end

    def round_four(weight, rows)
      rows << create_matchup(nil,nil,"Conso Semis",1,4,weight)
      rows << create_matchup(nil,nil,"Conso Semis",2,4,weight)
    end

    def round_five(weight, rows)
      rows << create_matchup(nil,nil,"1/2",1,5,weight)
      rows << create_matchup(nil,nil,"3/4",1,5,weight)
      rows << create_matchup(nil,nil,"5/6",1,5,weight)
      if @number_of_placers >= 8
        rows << create_matchup(nil,nil,"7/8",1,5,weight)
      end
    end

    def wrestler_with_seed(seed,weight)
      wrestler = weight.wrestlers.find { |w| w.bracket_line == seed }
      if wrestler
        return wrestler.id
      else
      	return nil
      end
    end

    def create_matchup_from_seed(w1_seed, w2_seed, bracket_position, bracket_position_number,round,weight)
        # if wrestler_with_seed(w1_seed,weight) and wrestler_with_seed(w2_seed,weight)
            create_matchup(wrestler_with_seed(w1_seed,weight),wrestler_with_seed(w2_seed,weight), bracket_position, bracket_position_number,round,weight)
        # end
    end

    def create_matchup(w1, w2, bracket_position, bracket_position_number,round,weight)
        {
          w1: w1,
          w2: w2,
          tournament_id: @tournament.id,
          weight_id: weight.id,
          round: round,
          bracket_position: bracket_position,
          bracket_position_number: bracket_position_number
        }
    end

    def generation_weights
      @weights || @tournament.weights.to_a
    end
end