#!/usr/bin/perl
use say;
use strict;
use warnings;
use Data::Dumper;

my @keys_input_file =
    ('scenario', 'pins', 'threshold-1', 'threshold-2', 'subtraction', 'notation');

my @keys_filter_file =
    ('pins', 'threshold-1', 'threshold-2', 'justification', 'date');

my %HoH_Input;
my %HoH_Filter;
# reset line numbering on each input file
while (<>) {
    chomp;
    next if /^\s*$/; # skip empty lines
    my @values;
    if (/,/) {
	@values = split /,/, $_;
	@{$HoH_Filter{$ARGV}{$.}}{@keys_filter_file} = @values;
    }
    else {
	@values = split /\s+/, $_;
	@{$HoH_Input{$ARGV}{$.}}{@keys_input_file} = @values;
    }
} continue {
    close ARGV if eof;  # Not eof()!
}

# print Dumper \%HoH_Input, \%HoH_Filter;

my $result = 'output.txt';
open my $output, '>>', $result
    or die "Could not open ".$result.": $!";

foreach my $file ( sort { keys %{ $HoH_Input{$b} } <=>
			      keys %{ $HoH_Input{$a} } } keys %HoH_Input ) {
    foreach my $line ( sort { $HoH_Input{$file}{$a} <=>
				  $HoH_Input{$file}{$b} } keys %{ $HoH_Input{$file} } ) {
	foreach my $filter ( sort { keys %{ $HoH_Filter{$b} } <=>
					keys %{ $HoH_Filter{$a} } } keys %HoH_Filter ) {
	    foreach my $filter_line ( sort { $HoH_Filter{$filter}{$a} <=>
						 $HoH_Filter{$filter}{$b} } keys %{ $HoH_Filter{$filter} } ) {
		if ( $HoH_Input{$file}{$line}{'pins'}
		    eq
		    $HoH_Filter{$filter}{$filter_line}{'pins'} ) {

		    my $subtraction = sprintf('%2.2f',
					      $HoH_Filter{$filter}{$filter_line}{'threshold-1'} -
					      $HoH_Filter{$filter}{$filter_line}{'threshold-2'});

		    say $output join (' ',
				      $HoH_Input{$file}{$line}{'scenario'},
				      $HoH_Input{$file}{$line}{'pins'},
				      $HoH_Filter{$filter}{$filter_line}{'threshold-1'},
				      $HoH_Filter{$filter}{$filter_line}{'threshold-2'},
				      $subtraction,
				      '(WAIVED)',
			);
		    next;
		}
		say $output join (' ',
				  $HoH_Input{$file}{$line}{'scenario'},
				  $HoH_Input{$file}{$line}{'pins'},
				  $HoH_Input{$file}{$line}{'threshold-1'},
				  $HoH_Input{$file}{$line}{'threshold-2'},
				  $HoH_Input{$file}{$line}{'subtraction'},
				  $HoH_Input{$file}{$line}{'notation'},
		    );
	    }
	}
    }
}

close $output
    or warn "Could not close ".$result.": $!";

__END__

$ cat output.txt 
abcd124 klmn124 100.00 2500.00 -2400.00 (WAIVED)
abcd123 klmn123 100.00 1000.00 -900.00 (VIOLATED)