#!/usr/bin/perl -w

# usage: copyscandirs <TargetDir> <ScanDirPattern>
# 	note that you must not be in <TargetDir> but in the directory in which the 
# 	scna dirs are, which should be moved!
#
# algorithm: 
# get list of scan dirs 
# parse scan dir names (base name + number)
# check largest number in goal dir
# move and rename the scandirs

use Getopt::Std;

getopts('uhn');

$TargetDir = "exexrangedurscan" ;
$BaseFileName = "scan" ;

if ($opt_u) {
	print "usage: copyscandirs <TargetDir> <ScanDirPattern>\n";
	
}

print "**************************\n";
print "copyscandirs\n";

$NumCmdArgs = $#ARGV+1 ;
print "Number of command line arguments: $NumCmdArgs \n" ;
if ($#ARGV >= 0)  
{
	$TmpTargetDir = $ARGV[0];
	# check existence of target dir: http://www.pageresource.com/cgirec/ptut17.htm
	if (-e $TmpTargetDir) {
		$TargetDir = $TmpTargetDir ;
	} else {
		print "TargetDir $TmpTargetDir doesn't exist \n" ;
		print "     --> using default $TargetDir \n";
	}
}

if ($#ARGV >=1)
{
	$BaseFileName = $ARGV[1] ;
}

print "TargetDir = $TargetDir \n";



my(@DirNames) = glob "$BaseFileName*" ;
my(@TargetScanDirs) = glob "$TargetDir/$BaseFileName*" ;




$MaxTargetNumber = 0;
foreach $Dir (@TargetScanDirs)
{
#	print "$Dir\n" ;
	$_ = $Dir ;
	$Pattern = "$TargetDir/$BaseFileName";
	/$Pattern(.*)/ ;
	if ($1 > $MaxTargetNumber) {
		$MaxTargetNumber = $1 ;
	}
}

print "MaxTargetNumber = $MaxTargetNumber \n";

$NextTargetNumber = $MaxTargetNumber + 1;
foreach $Dir (@DirNames)
{	
	print "move $Dir to $TargetDir/$BaseFileName$NextTargetNumber\n" ;
	system ("mv $Dir $TargetDir/$BaseFileName$NextTargetNumber") ;
	++$NextTargetNumber ;
}