#!/usr/local/bin/perl

use strict;
use Cwd;
my $MAX_SCORE;
my $PPT;
my $NUM_TC;
#my $NUM_Prob;
#my $GTYPE;

my @list;
my $dir;
my $totalScore;
my @score;
my $SPT; # score per thread
my @tcscore;
my $prefscore;
my $fail_info;

my $line;
my $isMemTestSuccess;
my $isMaTestSuccess;
my $i;
my $j;
my $base = 0;
my $time_margin = 1.5;

# Set maximum possible scores
$MAX_SCORE = $ARGV[0];
# Finds number of testcase to be run and calculates number of
# points per testcase

#@list = `ls expected/expected*`;
$NUM_TC = $ARGV[2];
#$NUM_Prob = $#ARGV - 1;

if($ARGV[1] == 1){
    $PPT =  (0.95 * $MAX_SCORE) / $NUM_TC;
}
elsif($ARGV[1] == 2){
    $PPT =  $MAX_SCORE / $NUM_TC;
}

#correct directory path
#$dir = quotemeta($_);

#Run executable and tests in testing directory	
print "GRADING RESULTS\n";
print "\nChecking Correctness.\n";
	
my @host = `hostname`;
my @currline;
my @numthreads = (3,3,3,4,5,6,7,8,9,4, 1,2,3,4,5,6,7,8,9,10, 4,4,4,4,5,6,7);
#my @PPT_ARRAY = (.2, .2, .2, .2, .2, .2, .2, .2, .5, .3, .3, .3,.4,.3,.3);
	
#initalize score
for($i = 0; $i < $NUM_TC; $i++) {
	$score[$i] = 0;
}

$totalScore = 0;
	
if($ARGV[1] == 1){
	for($i = $NUM_TC; $i <= $NUM_TC+1; $i++) {
		if((system("make corrtest$i") == 512)) {
			#print "make corrtest$i passes\n";
			$score[$i] = 0.025 * $MAX_SCORE;	
		} else {
			$fail_info = `make corrtest$i 2>&1`;
			print "corrtest$i fails\n";
			print "$fail_info\n\n";
		}
	}
}
	
print "Running $NUM_TC tests\n";
for($i = 0; $i < $NUM_TC; $i++) {
	if(system("make corrtest$i") == 0) {
		print "Correctness Test $i passes\n";
		#$score[$i] = $PPT_ARRAY[$i];
		$PPT =  $MAX_SCORE / $NUM_TC;
		$score[$i] = $PPT;
		$isMemTestSuccess = 0;
		$isMaTestSuccess = 0;
		if(-e "memoutput$i"){
			open(MEM, "<memoutput$i");
			while ($line = <MEM>) {
				if ($line =~ m/All heap blocks were freed -- no leaks are possible/){
					#print "memory management test passes\n";
					$isMemTestSuccess = 1;
				}
				elsif ($line =~ m/ERROR SUMMARY: 0 errors from 0 contexts/){
					#print "memory access test passes\n";
					$isMaTestSuccess = 1;
				}
			}
			close(MEM);
				
			if ($isMemTestSuccess == 0) {
				print "memory management test $i fails\n";
				#$score[$i] = $score[$i] - ($PPT_ARRAY[$i]/2);
				$score[$i] = $score[$i] - ($PPT/2); 
			}
				
			if ($isMaTestSuccess == 0) {
				print "memory access test $i fails.  Check memoutput$i to see whtat the errors are\n";
				#$score[$i] = $score[$i] - ($PPT/2); 
			}
				
				
		}
		
		if($host[0] =~ m/quatro/){
			if(system("make perftest$i") == 0) {
				$prefscore = 0;
				my $missedcount = 0;
				#$PPT = $score[$i] / $numthreads[$i];
				$SPT = $score[$i] / $numthreads[$i];
				if(-e "outputs/timeinfo$i"){
					my @stutimes;
					my @exptimes;
					open(TIMEINFO, "<outputs/timeinfo$i");
										
					while ($line = <TIMEINFO>) {
						if ($line =~ m/run/){
							@currline = split(" ", $line);
							push(@stutimes, $currline[4]);
						}
					}
					close(TIMEINFO);					
					
					open(EXPECTED, "<expected/exptime$i");
					
					while ($line = <EXPECTED>) {
						if ($line =~ m/run/){
							@currline = split(" ", $line);
							push(@exptimes, $currline[4]);
						}
					}
					close(EXPECTED);
					
					for($j = 0; $j < scalar(@stutimes); $j++){
						if($stutimes[$j] > $time_margin * $exptimes[$j]){
							$missedcount++;
							$tcscore[$j] = (($time_margin * $exptimes[$j]) / $stutimes[$j]) * $SPT;
						}
						else{
							$tcscore[$j] = $SPT;
						}
					}
				}
				
				for($j = 0; $j < $numthreads[$i]; $j++){
					$prefscore += $tcscore[$j];
				}
				
				if($missedcount > 3){
					$score[$i] = $prefscore;
					print "missedcount is $missedcount\n";
					print "One or more threads runs longer than the allowed maximum\n";

				}
				else{
					print "Performance test $i passes\n";
				}
				
				
				
			} else {
				$fail_info = `make perftest$i 2>&1`;
				print "perftest$i fails\n";
				print "$fail_info\n";
			}
		}
		
		else{
			print "Performance test needs to be run on quatro01 or quatro02\n";
		}
			
			
	} else {
		$fail_info = `make corrtest$i 2>&1`;
		print "corrtest$i fails\n";
		print "$fail_info\n";
	}
}
	
	
for ($i = 0; $i < $NUM_TC; $i++) {
	$totalScore = $totalScore + $score[$i];
}	

if($host[0] =~ m/quatro/){
}
else{
	$totalScore = 0;
}
#print student's score on screen
printf("\n\nTOTAL SCORE = %.2f/%.2f\n", $totalScore, $MAX_SCORE);
print "\nYour Program will be manually graded for styling and implementation correctness\n";
print "This manual grading can have affect on your final grade\n";
print "DONE\n\n";