use strict;
use warnings;
if ($#ARGV < 1) { die "usage csvout_compare.pl <csvoutout1> <csvout2> <csvoutout3>.....\n"};
my $f=0;

my %allhash;
my @indexes_to_print;
my %data;
my @line;
my $index;
foreach my $files (@ARGV) {
	$f++;
	open FILE,$files or die "Cannot open $files\n";
	print "Opened $files \n";
	while (<FILE>) {
		next if (/csvout_ID/);
		chomp;
		@line = split(/,/,$_);
		$index = $line[0].".".$line[1];
		$allhash{$index} = 1;

		$data{$f}{$index} = "$_";
			}
	close FILE;
}

foreach $index (keys %allhash) {
	my @temparray;
	my $flag = 0;
	#First lets take all those indexes which are not in all files
	foreach my $dataset (keys %data) {
		if (!(exists $data{$dataset}{$index})) {
			push (@indexes_to_print,$index);
			#delete $allhash{$index};
			$flag = 1;
		}
	}
	next if ($flag eq 1);

	#Now we take those indexes where the Final result is different
	for (my $i=1;$i<=$f;$i++) {
		my @temp = split(/,/,$data{$i}{$index});
		$temparray[$i] = $temp[2];
		if ($i>1) {
			if ($temparray[$i] !~ $temparray[$i-1]) {
				push (@indexes_to_print,$index);
			}
		}
	}
}
#uniquify @indexes_to_print
#
 my %seen   = map { $_, 1 } @indexes_to_print;
 my @unique_indexes = keys %seen;

 foreach my $index (@unique_indexes) {
	 print "$index";
	for (my $i=1;$i<=$f;$i++) {
		if (exists $data{$i}{$index}) {
			my @temp = split(/,/,$data{$i}{$index});
			#print ",$i,$temp[2]";
			print ",$i";
			foreach (my $j=2;$j<=10;$j++) {
				if (exists ($temp[$j])) {
					print ",$temp[$j]";
				} else {
					print ",";
				}
			}
		} else {
			print ",$i,NA,,,,,,,,";
		}
	}
	print "\n";
}