1 files changed, 55 insertions, 0 deletions
diff --git a/lib/scheduling/elimination.rb b/lib/scheduling/elimination.rb
new file mode 100644
index 0000000..519d08a
--- /dev/null
+++ b/lib/scheduling/elimination.rb
@@ -0,0 +1,55 @@
+module Scheduling
+	class Elimination
+
+		def initialize(tournament_stage)
+			@tournament_stage = tournament_stage
+		end
+
+		def tournament_stage
+			@tournament_stage
+		end
+		def tournament
+			self.tournament_stage.tournament
+		end
+
+		def create_matches
+			num_teams = (self.tournament.players.count/self.tournament.min_players_per_team).floor
+			num_matches = num_teams - 1
+			for i in 1..num_matches
+				self.tournament_stage.matches.create(status: 0, submitted_peer_evaluations: 0)
+			end
+			match_num = num_matches-1
+			team_num = 0
+			# for each grouping of min_players_per_team
+			self.tournament.players.each_slice(min_players_per_team) do |team_members|
+				# if the match is full, move to the next match, otherwise move to the next team
+				if (team_num == min_teams_per_match)
+					match_num -= 1
+					team_num = 0
+				else
+					team_num += 1
+				end
+				# create a new team in the current match
+				self.tournament_stage.matches[match_num].teams.push(Team.create(users: team_members))
+			end
+		end
+
+		def match_finished(match)
+			matches = match.tournament_stage.matches_ordered
+			cur_match_num = matches.invert[match]
+			unless cur_match_num == 1
+				match.winner.matches.push(matches[cur_match_num/2])
+			end
+		end
+
+		def graph
+			require 'erb'
+			erb_filename = File.join(File.dirname(__FILE__), 'elimination.svg.erb')
+
+			erb = ERB.new(File.read(erb_filename))
+			erb.filename = erb_filename
+			return erb.result
+		end
+
+	end
+end