#!/usr/bin/perl -w

use File::Copy;

if(!$ARGV[0] || !-f $ARGV[0])
{
        print "error: need input file\n";
        exit;
}

if(!$ARGV[1] || !-d $ARGV[1])
{
        print "error: need dir to process\n";
        exit;
}
$input_dir = $ARGV[1];
$input_dir =~ s/\/$//;  # trim trailing /

# read dir to process
opendir(DIR, "$input_dir") or die "can't open dir \"$input_dir\": $!";
@dirlist = CORE::readdir(DIR);
closedir DIR;

# open config file to process
open(FILE, $ARGV[0]) or die "coudnt open input file\n";
while(<FILE>)
{
        # make sure line is what we expect
        if(/(.*?)\t+(.*?)(\s|\r|\n)*$/)
        {
                $regexp = $1;
                $dest_dir = $2;

                if($dest_dir =~ /^DELETE=(\d+)/)
                {
                        $delage = $1;
                }
                elsif(!-d $dest_dir)
                {
                        print "*** error: dir \"$dest_dir\" listed in cofig does not exist\n";
                        exit;
                }

                for my $file(@dirlist)
                {
                        if(!-f "$input_dir/$file")
                        {
                                # file has already been moved
                        }
                        else
                        {
                                $f = "$input_dir/$file";
                                $fileage = int(-M $f);
                                if($f =~ /$regexp/i)
                                {
                                        if($dest_dir =~ /^DELETE=(\d+)/)
                                        {
                                                if($fileage > $delage)
                                                {
                                                        print "> DELETING $f",
                                                        " because file age $fileage is > delete age $delage\n";
                                                        unlink($f);
                                                }
                                        }
                                        else
                                        {
                                                print "> moving \"$f\" to \"$dest_dir\"\n";
                                                #move($f, $dest_dir)  or die "File cannot be copied.:\n***\n$!\n***\n";
                                                system("mv \"$f\" \"$dest_dir\"")
                                        }
                                }
                        }
                }
        }
        else
        {
                next;
        }
}