class MonitorController < ApplicationController
def start_choices
[]
end
def extras
@choices=[]
limitip=params[:id] ? params[:id].gsub('-','.') : client_ip
logfile="log/#{RAILS_ENV}.log"
controlstr= "teacher:"
r=%r~#{controlstr}(.*)~
newsum={}
@title= translate("results")+': ip '+limitip
@displayed=''
	IO.foreach(logfile) do |nk|
#useful lines look like:
#For teacher: new problem 3+2 for 127.0.0.1 at Fri Feb 24 16:24:59 +0530 2012/1330080899
#teacher: wrong answer 4 to 3+2 from 127.0.0.1 at Fri Feb 24 16:45:15 +0530 2012/1330082115

#		p nk
		if nk.match(r) #controlstr found in string
#			p "raw #{$1}"
			s=$1
			if s=~ /(.*)for ([\d\.]+)(.*)\/(\d+)$/ || s=~ /(.*)from ([\d\.]+)(.*)\/(\d+)$/
				ip=$2
				secs=$4
				between=$1+$3
#				p ip+secs
				if !limitip || (limitip == ip)
					if s=~/new problem/ 
						#a new sum was generated for an ip of interest
						newsum[ip]= secs
	#					p s
					elsif start=newsum[ip] 
						time_spent= secs.to_i - start.to_i
						@displayed+= "After #{time_spent} seconds: #{between} <br> "
					end
				end
			end
		end
	end
	
#	@displayed=p
end
end