From 9d226fcd27b6c2470edf718ad36a262348891470 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <shumakl@purdue.edu>
Date: Tue, 22 Apr 2014 15:50:21 -0400
Subject: re-factor for tournament_stage's and separate scheduling modules

---
 lib/scheduling/elimination.rb      | 55 +++++++++++++++++++++++++++++
 lib/scheduling/elimination.svg.erb | 72 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 127 insertions(+)
 create mode 100644 lib/scheduling/elimination.rb
 create mode 100644 lib/scheduling/elimination.svg.erb

(limited to 'lib/scheduling')

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
diff --git a/lib/scheduling/elimination.svg.erb b/lib/scheduling/elimination.svg.erb
new file mode 100644
index 0000000..91b8f6a
--- /dev/null
+++ b/lib/scheduling/elimination.svg.erb
@@ -0,0 +1,72 @@
+<%
+
+matches = @tournament_stage.matches_ordered
+# depth of SVG tree
+depth = Math.log2(matches.count).floor+1;
+# height of SVG
+height = 200 * 2**Math.log2(matches.count).floor + 100;
+lastrx = 0
+lastry = 0
+lastrh = 0
+lastrw = 0
+
+%><svg version="1.1" baseProfile="full"
+     xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     width="100%" height="<%= height = [height, 500].max %>">
+	<% %>
+	<defs>
+		<radialGradient id="gradMatch" cx="50%" cy="50%" r="80%" fx="80%" fy="80%">
+			<stop offset="0%" style="stop-color:#ffd281; stop-opacity:0" />
+			<stop offset="100%" style="stop-color:#ccc;stop-opacity:1" />
+		</radialGradient>
+	</defs>
+	<% (1..matches.count).each do |i| %>
+		<a id="svg-match-<%= i %>" xlink:href="<%= match_path(matches[i-1]) %>">
+			<rect height="<%= rh = 100/(2**(depth-1)+1) - 5 %>%"
+			      width="<%= rw = 100/(depth+1) - 5 %>%"
+			      x="<%= rx = 50/(depth+1) + 100/(depth+1)*(depth-(Math.log2(i).floor+1)) %>%"
+			      y="<%= ry = ( 100/(2**(Math.log2(i).floor)+1) + rh * 1.1 * (2**Math.log2(i).ceil-i)) %>%"
+			      fill="url(#gradMatch)"
+			      rx="5px"
+			      stroke-width="2"
+			      <% case matches[i-1].status %>
+			      <% when 0 %>
+			      	<% if matches[i-1].teams.count < @tournament_stage.tournament.min_teams_per_match %>
+			      		stroke="red"
+			      		fill-opacity="0.6"
+			      	<% else %>
+			      		stroke="green"
+			      	<% end %>
+			      <% when 1 %>
+			      	stroke="orange"
+			      <% when 2 %>
+			      	stroke="yellow"
+			      <% when 3 %>
+			      	stroke="grey"
+			      <% end %> />
+			<rect width="<%= rw-5 %>%" height="<%= rh/4 %>%" x="<%= rx + 2.5 %>%" y="<%= ry + rh/6 %>%" fill="<%= matches[i-1].teams.first and matches[i-1].teams.first.users.include?(current_user) ? "#BCED91" : "white" %>"  />
+			<text x="<%= rx + rw/4 %>%" y="<%= ry + rh/3 %>%" font-size="<%= rh %>">
+				<% if matches[i-1].teams.first %>
+					Team <%= matches[i-1].teams.first.id %>
+				<% end %>
+			</text>
+			<text x="<%= rx + 1.3*rw/3  %>%" y="<%= ry + 5.2*rh/9 %>%" font-size="<%= rh %>"> VS </text>
+			<rect width="<%= rw-5 %>%" height="<%= rh/4 %>%" x="<%= rx + 2.5 %>%" y="<%= ry + 3*rh/5 %>%" fill="<%= matches[i-1].teams[1] and matches[i-1].teams[1].users.include?(current_user) ? "#BCED91" : "white" %>" />
+			<text x="<%= rx + rw/4 %>%" y="<%= ry + 4*rh/5 %>%" font-size="<%= rh %>">
+				<% if matches[i-1].teams[1] %>
+					Team <%= matches[i-1].teams[1].id %>
+				<% end %>
+			</text>
+			<% if i > 1 %>
+				<line x1="<%= rx+rw %>%" y1="<%= ry+rh/2 %>%" x2="<%= lastrx %>%" y2="<%= lastry+lastrh/2 %>%" stroke="black" stroke-width="2" >
+			<% end %>
+			<% if Math.log2(i+1) == Math.log2(i+1).ceil %>
+				<% lastrx = rx
+				   lastry = ry
+				   lastrh = rh
+				   lastrw = rw %>
+			<% end %>
+		</a>
+	<% end %>
+</svg>
-- 
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