wrestlingdev.com/app/services/bracket_advancement/modified_double_elimination_advance.rb

class ModifiedDoubleEliminationAdvance

    def initialize(wrestler,last_match)
           @wrestler = wrestler
           @last_match = last_match
       @next_match_position_number = (@last_match.bracket_position_number / 2.0)
    end
   
    def bracket_advancement
      if @last_match.winner_id == @wrestler.id
           winner_advance
      end
      if @last_match.winner_id != @wrestler.id
           loser_advance
      end
      advance_double_byes
      set_bye_for_placement
    end
   
    def winner_advance
     if (@last_match.loser1_name == "BYE" or @last_match.loser2_name == "BYE") and @last_match.is_championship_match
       update_consolation_bye
     end
     if @last_match.bracket_position == "Quarter"
        new_match = Match.where("bracket_position = ? AND bracket_position_number = ? AND weight_id = ?","Semis",@next_match_position_number.ceil,@wrestler.weight_id).first
        update_new_match(new_match, get_wrestler_number)
     elsif @last_match.bracket_position == "Semis"
        new_match = Match.where("bracket_position = ? AND bracket_position_number = ? AND weight_id = ?","1/2",@next_match_position_number.ceil,@wrestler.weight_id).first
        update_new_match(new_match, get_wrestler_number)
     elsif @last_match.bracket_position == "Conso Semis"
          new_match = Match.where("bracket_position = ? AND bracket_position_number = ? AND weight_id = ?","5/6",@next_match_position_number.ceil,@wrestler.weight_id).first
          update_new_match(new_match, get_wrestler_number)
     elsif @last_match.bracket_position == "Conso Quarter"
        # it's a special bracket where a semi loser is not dropping down
        new_match = Match.where("bracket_position = ? AND bracket_position_number = ? AND weight_id = ?","Conso Semis",@next_match_position_number.ceil,@wrestler.weight_id).first
        update_new_match(new_match, get_wrestler_number)
     elsif @last_match.bracket_position == "Bracket Round of 16"
        new_match = Match.where("bracket_position_number = ? and weight_id = ? and round > ? and bracket_position = ?", @next_match_position_number.ceil,@wrestler.weight_id, @last_match.round , "Quarter").sort_by{|m| m.round}.first
        update_new_match(new_match, get_wrestler_number)
     elsif @last_match.bracket_position == "Conso Round of 8"
        new_match = Match.where("bracket_position_number = ? and weight_id = ? and round > ? and bracket_position = ?", @last_match.bracket_position_number,@wrestler.weight_id, @last_match.round, "Conso Quarter").sort_by{|m| m.round}.first
        update_new_match(new_match, get_wrestler_number)
     end
    end
    
    def update_new_match(match, wrestler_number)
        if wrestler_number == 2 or (match.loser1_name and match.loser1_name.include? "Loser of")
             match.w2 = @wrestler.id
             match.save
        elsif  wrestler_number == 1
             match.w1 = @wrestler.id
             match.save
        end
    end
   
    def update_consolation_bye
       bout = @wrestler.last_match.bout_number
       next_match = Match.where("(loser1_name = ? OR loser2_name = ?) AND weight_id = ?","Loser of #{bout}","Loser of #{bout}",@wrestler.weight_id)
       if next_match.size > 0
         next_match.first.replace_loser_name_with_bye("Loser of #{bout}")
       end
    end
   
    def get_wrestler_number
      if @next_match_position_number != @next_match_position_number.ceil
         return 1
      elsif @next_match_position_number == @next_match_position_number.ceil
         return 2
      end
    end
   
    def loser_advance
     bout = @last_match.bout_number
     next_match = Match.where("(loser1_name = ? OR loser2_name = ?) AND weight_id = ?", "Loser of #{bout}", "Loser of #{bout}", @wrestler.weight_id).first
     
     if next_match.present?
       next_match.replace_loser_name_with_wrestler(@wrestler, "Loser of #{bout}")
       next_match.reload
   
       if next_match.loser1_name == "BYE" || next_match.loser2_name == "BYE"
         next_match.winner_id = @wrestler.id
         next_match.win_type = "BYE"
         next_match.score = ""
         next_match.finished = 1
         # puts "Before save: winner_id=#{next_match.winner_id}"
         
         # if next_match.save
         #   puts "Save successful: winner_id=#{next_match.reload.winner_id}"
         # else
         #   puts "Save failed: #{next_match.errors.full_messages}"
         # end
         next_match.save
   
         next_match.advance_wrestlers
       end
     end
    end
   
   
    def advance_double_byes
      weight = @wrestler.weight
      weight.matches.select{|m| m.loser1_name == "BYE" and m.loser2_name == "BYE" and m.finished != 1}.each do |match|
         match.finished = 1
         match.score = ""
         match.win_type = "BYE"
         next_match_position_number = (match.bracket_position_number / 2.0).ceil
         after_matches = weight.matches.select{|m| m.round > match.round and m.is_consolation_match == match.is_consolation_match }.sort_by{|m| m.round}
         next_matches = weight.matches.select{|m| m.round == after_matches.first.round and m.is_consolation_match == match.is_consolation_match }
         this_round_matches = weight.matches.select{|m| m.round == match.round and m.is_consolation_match == match.is_consolation_match }
   
         if next_matches.size == this_round_matches.size
           next_match = next_matches.select{|m| m.bracket_position_number == match.bracket_position_number}.first
           next_match.loser2_name = "BYE"
           next_match.save
         elsif next_matches.size < this_round_matches.size and next_matches.size > 0
           next_match = next_matches.select{|m| m.bracket_position_number == next_match_position_number}.first
           if next_match.bracket_position_number == next_match_position_number
             next_match.loser2_name = "BYE"
           else
             next_match.loser1_name = "BYE"
           end
         end
         next_match.save
         match.save
      end
    end
   
    def set_bye_for_placement
     weight = @wrestler.weight
     seventh_finals = weight.matches.select{|match| match.bracket_position == '7/8'}.first
     if seventh_finals
       conso_quarter = weight.matches.select{|match| match.bracket_position == 'Conso Semis'}
       conso_quarter.each do |match|
         if match.loser1_name == "BYE" or match.loser2_name == "BYE"
           seventh_finals.replace_loser_name_with_bye("Loser of #{match.bout_number}")
         end
       end
     end
    end
   end