improvements to active meetings

config/initializers/waiting_list.rb

@@ -0,0 +1,35 @@
+# Stores data on waiting users on the server side so
+# we can pass it to clients when they reload the page.
+
+class WaitingList
+  @waiting = {}
+  
+  def self.waiting
+    @waiting
+  end
+  
+  def self.add(room, user, meeting)
+    @waiting[room] = {} unless @waiting.has_key?(room)
+    @waiting[room][meeting] = [] unless @waiting[room].has_key?(meeting)
+    @waiting[room][meeting] << user
+  end
+  
+  def self.remove(room, user, meeting)
+    if @waiting.has_key?(room) then
+      if @waiting[room].has_key?(meeting) then
+        @waiting[room][meeting].slice!(@waiting[room][meeting].index(user))
+        @waiting[room].delete(meeting) if @waiting[room][meeting].length == 0
+        @waiting.delete(room) if @waiting[room].length == 0
+      end
+    end
+  end
+  
+  def self.empty(room, meeting)
+    if @waiting.has_key?(room) then
+      if @waiting[room].has_key?(meeting) then
+        @waiting[room].delete(meeting)
+        @waiting.delete(room) if @waiting[room].length == 0
+      end
+    end
+  end
+end