#!/usr/bin/perl -w

use strict;
use DirHandle;
use File::Basename;
use File::stat;
use Getopt::Long;
use POSIX qw(strftime);
use POSIX qw(locale_h);
use locale;

my $rcs = '$Id: listfiles.pl,v 1.15 2003/03/16 13:19:41 gilles Exp gilles $ ';


my $myself = $0;
my $debug  = 0;
my $dots   = 19;
my $date   = scalar(localtime());

my $title;

GetOptions(
	   "debug"     => \$debug,
	   "dots:i"    => \$dots,
	  ) or exit 1;

my @files;
@files = @ARGV;

$debug and print join("\n", 
		      "<pre>FILES:",
		      @files,
		      "</pre>");

my (%files, @list, %done);


$debug and print "<pre>\n";

$debug and print "---- first pass\n";
foreach my $file (@files) {
	$debug and print "-- $file\n";
	next unless (-f $file);
	
	my ($dir,$base,$lang,$type) = split_name($file);
	next unless defined($dir);
	$debug and print "($dir,$base,$lang,$type)\n";
	my $source = get_depend($file);
	$debug and print "source $source\n";
	my $inode;
	if (-f $source) {
		$inode = stat($source);
	}else{
		$inode = stat($file);
	}
	my $inode_file = stat($file);
	my $size     = int(($inode_file->size / 1024) + 0.5);
	my $size_str = sprintf("%3dk", $size);
	my $mtime    = $inode->mtime;
	setlocale(LC_ALL, $lang);
	my $mtime_str = strftime "%Y %b %e", localtime($mtime);
	$debug and print "LANG $lang $mtime_str\n";
	$debug and print "SIZE $size $size_str\n";
	$files{$file}{'dir'} = $dir;
	$files{$file}{'base'} = $base;
	$files{$file}{'lang'} = $lang;
	$files{$file}{'ext'}  = $type;
	$files{$file}{'size'} = $size_str; 
	$files{$file}{'mtime_str'} = $mtime_str;
	$files{$file}{'mtime'} = $mtime;

}
$debug and print "</pre>\n";

foreach my $file (sort 
		  { $files{$a}{'base'} cmp $files{$b}{'base'}
		      ||
			$files{$a}{'lang'} cmp $files{$b}{'lang'}
			  || 
			    $files{$a}{'ext'} cmp $files{$b}{'ext'}
		    }
		  keys %files) {
	
	my $dir  = $files{$file}{'dir'} ;
	my $base = $files{$file}{'base'} ;
	my $lang = $files{$file}{'lang'} ;
	my $ext  = $files{$file}{'ext'};
	my $size = $files{$file}{'size'};
	my $mtime_str = $files{$file}{'mtime_str'};
	my $mtime = $files{$file}{'mtime'};
	my $date;
	if ((time - $mtime) <= 60*60*24*30) {
		$date = "<b>$mtime_str</b>";
	}else{
		$date = $mtime_str;
	}
	
	push(@list,
	     "\n$date "
	     . $lang
	     . ") <b>$base</b> "
	     . space($dots,$base)
	    )
	  unless exists($done{"$base\/$lang"});
	
	push (@list, "$size <a href=\"$file\">$ext</a>");
	$done{"$base\/$lang"}++;
	$debug and print
	  "$base\/$lang", " : ",
	  $done{"$base\/$lang"}, "\n";
	
}

print <<EOF;
<pre>@list
</pre>
EOF



sub get_depend {
	my $file = shift;
	my $source;

	my ($dir,$base,$lang,$type) = split_name($file);
	return "" unless defined $dir;
	
	my $source_base = "$base.$lang";
	my $source_m4   = "$dir/../sgml/$source_base.m4";
	my $source_sgml = "$dir/../sgml/$source_base.sgml";
	if (-f $source_m4) {
		$source = $source_m4;
	}
	elsif (-f $source_sgml) {
		$source = $source_sgml;
	}
	else {
		$source = "";
	}
	return $source;
}

sub split_name {
	my $file = shift;
	
	my $dirname  = dirname($file);
	my $basename = basename($file);

	
	unless ($basename =~ /(.*)\.(..)\.(.*)/) {
		return(());
	}
	else{
		$debug and print "split_name : ($1, $2, $3)\n";
		my $dir  = $dirname;
		my $base = $1;
		my $lang = $2;
		my $type  = $3;
		return($dir,$base,$lang,$type);
	}
}

sub space {
	my $num    = shift;
	my $string = shift;

	my $diff = $num - length($string);
	unless ($diff > 0) {
		return "";
	}else{
		return("." x $diff);
	}
}