#######################################################################
# thumbnailing

sub is_ungainly
	{
	my $fn = shift; return $fn =~ /tif$/ || $fn =~ /bmp/;
	}
sub thumbnail_filename 
	{
	my ($filename) = @_;
	if (is_ungainly($filename))
		{
		$filename =~ s/\..*$/.jpg/;
		}
	return lc $filename;
	}
sub make_image_thumb
	{
	my ($args) = @_;

	my $file = $args->{file};
	my $key = $args->{key} || "t.";
	my $maxwidth = $args->{maxwidth} || 450;
	my $maxheight = $args->{maxheight} || 450;

	my $filename = $file->{filename};
	my $lcfilename = thumbnail_filename($filename);

	use integer;

	$key = "t." if (!defined($key));
	print $file->{filename} if ($DEBUG);

	my ($xold, $yold) = imgsize(qq!$data_path/$file->{thread}/$filename!);
	my $x = $xold;
	my $y = $yold;
	my @convert_args = ();

	push @convert_args, "$data_path/$file->{thread}/$filename";
	if ($filename =~ /.gif$/) {
		push @convert_args, "-coalesce";
	}
	push @convert_args, "-geometry";
	if ($maxheight < 1 && $maxwidth < 1)
		{ push @convert_args, "450x450"; }
	elsif ($maxwidth < 1 || $key eq "b.")
		{ push @convert_args, "450x".$maxheight; }
	elsif ($maxheight < 1)
		{ push @convert_args, $maxwidth; }
	else
		{ push @convert_args, $maxwidth."x".$maxheight; }

	print "\n$filename -> .thumb/$key$lcfilename\n" if ($DEBUG);
	print "old size: $xold x $yold\n" if ($DEBUG);

	if ($filename =~ /.gif$/) {
		push @convert_args, "+map";
	}
	push @convert_args, "$data_path/$file->{thread}/.thumb/$key$lcfilename";
	if ($DEBUG)
		{ print join " ", @convert_args; print "\n"; }
	system($CONVERT_PATH, @convert_args);
	system($CHMOD_PATH, 755, "$data_path/$file->{thread}/.thumb/$key$lcfilename");
	}

# make a square thumbnail:
# crop bottom if portrait, crop sides if landscape
sub make_square_thumb
	{
	my ($file, $maxwidth, $key) = @_;
	my $filename = $file->{filename};
	my $lcfilename = lc($file->{filename});
	my $_temp_thumb = $filename;
	use integer;

	$key = "t." if (!defined($key));

	# x = width, y = height
	my ($xold, $yold) = imgsize(qq!$data_path/$file->{thread}/$file->{filename}!);
	my $x = $xold;
	my $y = $yold;
	my $ydiff = 0;
	my $xdiff = 0;
	my @convert_args;

	if ($x != $y) # we must crop
		{
		if ($x < $y)
			{
			push @convert_args, "-crop", $x."x".$x;
			$y = $x;
			}
		elsif ($y < $x)
			{
			$xdiff = ($x - $y) / 2;
			push @convert_args, "-crop", $y."x".$y.'+'.$xdiff;
			$x = $y;
			}

		$_temp_thumb = ".thumb/temporary.jpg";
		push @convert_args, "$data_path/$file->{thread}/$filename";
		push @convert_args, "$data_path/$file->{thread}/$_temp_thumb";

		print "\n$filename -> .thumb/$key$lcfilename\n" if ($DEBUG);
		print "old size: $xold x $yold\n" if ($DEBUG);
		print "new size: $x x $y\n" if ($DEBUG);
		if ($DEBUG)
			{ print join " ", @convert_args; print "\n"; }

		system($CONVERT_PATH, @convert_args);

		for ($i = 0; $i < 4; $i++)
			{
			my $_temp_thumb_cropped = $_temp_thumb;
			$_temp_thumb_cropped =~ s/.jpg$/-$i.jpg/;
			($xold, $yold) = imgsize(qq!$data_path/$file->{thread}/$_temp_thumb_cropped!);
			if ($xold == $x)
				{
				$_temp_thumb = $_temp_thumb_cropped;
				last;
				}
			}
		}
	@convert_args = ();
	push @convert_args, "-geometry";
	push @convert_args, $maxwidth."x".$maxwidth;
	push @convert_args, "$data_path/$file->{thread}/$_temp_thumb";
	push @convert_args, "$data_path/$file->{thread}/.thumb/$key$lcfilename";
	if ($DEBUG)
		{ print join " ", @convert_args; print "\n"; }
	system($CONVERT_PATH, @convert_args);
	system($CHMOD_PATH, 755, "$data_path/$file->{thread}/.thumb/$key$lcfilename");
	system($RM_PATH, "$data_path/$file->{parent_id}/.thumb/temporary.jpg");
	system($RM_PATH, "$data_path/$file->{parent_id}/.thumb/temporary-0.jpg");
	system($RM_PATH, "$data_path/$file->{parent_id}/.thumb/temporary-1.jpg");
	system($RM_PATH, "$data_path/$file->{parent_id}/.thumb/temporary-2.jpg");
	}

sub print_image_thumb
	{
	my ($file, $thumb_token, $string) = @_;

	my $lcfilename = thumbnail_filename($file->{filename});

	$thumb_token = "t." if (!defined($thumb_token));

	print qq!<td align=center valign=middle>!;

	my $keyword = $file->{keyword} || "details";
	if ( $keyword == -1 )
		{ $keyword = "details"; }

	if ($string == -1)
		{ print qq!<a href="$BUCKY/!.details_link().qq!/$file->{thread}">!; }
	else
		{ print qq!<a href="$live_path/$file->{thread}/$file->{filename}">!; }

	print qq!<img class="thumb" border=0 src="$live_path/$file->{thread}/.thumb/$thumb_token!.$lcfilename.qq!">!;
	print qq(</a>);

	if ($string != -1)
		{
		print qq(<br><small>);
		if (length($file->{title}))
			{ print $file->{title}; }
		else
			{ print clean_image_filename($file->{filename}); }
		print qq! (! . profile_link($file->{username}) . qq!,&nbsp;! . get_age($file->{date}) . qq!)!;
		print qq(</small>);
		}

	print qq!</a>!;
	print qq!</td>!;
	}

sub clean_image_filename
	{
	my ($filename) = @_;
	return if ($filename =~ /IMG|DSC/);
	$filename =~ s/[-_]/ /g;
	$filename =~ s/\....$//;
	return $filename;
	}

sub curt_filename
	{
	my ($fn) = @_;
	if (length($fn->{filename}) > 27 && $fn->{filename} !~ / /)
		{
		my $filen = substr $fn->{filename}, 0, 24;
		my $filext = substr $fn->{filename}, -4, 4;
		return "$filen..$filext";
		}
	else
		{ return $fn->{filename}; }
	}

sub print_flagged_jpeg
	{
	my ($f) = @_;
	my $lcfilename = thumbnail_filename($f->{filename});
	make_image_thumb(
		{
		file => $f,
		maxwidth => 390,
		# maxheight => 305,
		key => "s."
		} ) if (! -e qq!$data_path/$f->{thread}/.thumb/s.$lcfilename!);
	print qq!<a href="$live_path/$f->{thread}/$f->{filename}"><img src="$live_path/$f->{thread}/.thumb/s.!.$lcfilename.qq!" class="thumb"></a>!;
	}

#######################################################################################
# image gallery building

sub get_profile_image
    {
    my ($username, $prefix) = @_;
    if (defined($prefix))
      {
      if (-e $data_path."/profile/.thumb/$prefix$username.jpg")
        { qq($live_path/profile/.thumb/$prefix$username.jpg) }
      else
        { qq($live_path/profile/.thumb/$prefix)."default".qq(.jpg) }
      }
    elsif (-e $data_path."/profile/$username.jpg")
        { qq($live_path/profile/$username.jpg) }
    else
        { -1 }
    }

sub image_gallery
	{
	my ($files, $flagged, $many_jpgs) = @_;
	my $i = 0;
	my $j = 0;
	print "<table border=0 cellpadding=3 cellspacing=0 width=100%>";
	foreach my $f (sort { $a->{date} <=> $b->{date} } @$files)
		{
		next if ($f->{filename} !~ /(jpe?g|gif|png|bmp|tif)$/i);
		next if (($f->{id} == $flagged->{id}) && ($many_jpgs % 3) == 1);

		my $lcfilename = thumbnail_filename($f->{filename});
		make_image_thumb( { file => $f, maxwidth => 145, maxheight => 120, key => "t." })
			if (! -e qq($data_path/$f->{thread}/.thumb/t.).$lcfilename);
		make_image_thumb( { file => $f, maxwidth => 210, maxheight => 110, key => "b." })
			if (! -e qq($data_path/$f->{thread}/.thumb/b.).$lcfilename);

		print "<tr>\n" if ($j == 0);
		print_image_thumb($f, "t.");
		print "</tr>\n" if ($j == 2);

		$j = $j == 2 ? 0 : $j+1;

		$i++;
		}
	print qq!</table>\n!;
	return $i;
	}

sub image_column
	{
	my ($files, $flagged, $many_jpgs) = @_;
	my $i = 0;
	my $j = 0;
	if ($many_jpgs > 5)
		{ $thumb_token = "t."; }
	else
		{ $thumb_token = "b."; }
	print qq(<table border=0 cellpadding=0 cellspacing=0>);
	foreach my $f (sort { $a->{date} <=> $b->{date} } @$files)
		{
		next if ($f->{filename} !~ /(jpe?g|gif|png|bmp|tif)$/i);
		next if ($f->{id} == $flagged->{id});

		my $lcfilename = thumbnail_filename($f->{filename});
		make_image_thumb( { file => $f, maxwidth => 145, maxheight => 120, key => "t." })
			if (! -e qq($data_path/$f->{thread}/.thumb/t.).$lcfilename);
		make_image_thumb( { file => $f, maxwidth => 210, maxheight => 110, key => "b." })
			if (! -e qq($data_path/$f->{thread}/.thumb/b.).$lcfilename);

		if ($many_jpgs-1 == 4)  # tile in a square
			{
			if ($i % 2 == 0)
				{
				print qq(<tr>\n);
				print_image_thumb($f, $thumb_token);
				}
			else
				{
				print_image_thumb($f, $thumb_token);
				print qq(</tr>\n);
				}
			}
		else
			{
			print qq(<tr>\n);
			print_image_thumb($f, $thumb_token);
			print qq(</tr>\n);
			}

		$i++;
		}
	print qq!</table>\n!;
	return $i;
	}

sub index_photostream
  {
  my ($keyword,$tag) = @_;
if (2 != 1) 
     {
     photostream({ recent => 1, vertical => 0, count => $INDEX_GALLERY_IMAGE_COUNT });
     return;
     }
else {
	print "<table border=0 cellpadding=3 cellspacing=0 width=100%>";
$i = 4;
print <<__CROWS__;
<td align=center valign=middle><a href="/cgi-bin/bucky/details/246"><img class="thumb" border=0 src="/bucky/data/246/.thumb/t.dsc_0253.jpg"></a></a></td>
<td align=center valign=middle><a href="/cgi-bin/bucky/details/246"><img class="thumb" border=0 src="/bucky/data/246/.thumb/t.dsc_0265.jpg"></a></a></td>
<td align=center valign=middle><a href="/cgi-bin/bucky/details/246"><img class="thumb" border=0 src="/bucky/data/246/.thumb/t.dsc_0240.jpg"></a></a></td>
<td align=center valign=middle><a href="/cgi-bin/bucky/details/246"><img class="thumb" border=0 src="/bucky/data/246/.thumb/t.dsc_0234.jpg"></a></a></td>
__CROWS__
	print "</table>\n";
return;
}
    if (check_key($USER->{boxes}, "photostream") || ($USER == -1) )
        {
        if ( $keyword ne "all" )
            { photostream({ keyword => $keyword, vertical => 0, count => 4 }); }
        elsif ( $tag )
            { photostream({ tag => $tag, vertical => 0, count => 4 }); }
        else
            { photostream({ user => 1, vertical => 0, count => 4 }); }
        }
  }

sub photostream
	{
	my ($args) = @_;
	my $vertical = $args->{vertical};
	my $count = $args->{count};
	my $user = $args->{user};
	my $recent = $args->{recent};
	my $keyword = $args->{keyword};
	my $tag = $args->{tag};
	if ( $recent )
		{
		$args->{files} = get_recent_files();
		recent_image_gallery( $args );
		}
	elsif ( $keyword )
		{
		# TODO: privacy check
		$args->{files} = get_keyword_files( $keyword );
		if ($args->{files} != -1)
			{
			user_image_gallery( $args );
			}
		}
	elsif ( $tag )
		{
		$args->{files} = get_tag_files( $tag );
		if ($args->{files} != -1)
			{
			user_image_gallery( $args );
			}
		}
	else
		{
		for (my $i = 0; $i < 3; $i++)
			{
			my $username = get_random_user();
			$username = $BUCKY_ADMINISTRATOR if ($i == 2);
			my ($count, $size) = count_user_files($username);
			next unless ($count > 3);
			$args->{files} = get_user_files( $username );
			if ($args->{files} != -1)
				{
				user_image_gallery( $args );
				return;
				}
			}
		}
	}

sub recent_image_gallery
	{
	my ($args) = @_;
	my $files = $args->{files};
	my $count = $args->{count} || 4;
	my %seen;
	print qq(<table border=0 cellpadding=0 cellspacing=0 width="100%" style='margin:0 0 10px 0'>);
	print "<tr>";
	my $i = 0;
	for my $f (@$files)
		{
		if (lc($f->{filename}) =~ /(jpe?g|gif|png)$/) {
			if (! -e qq($data_path/$f->{thread}/.thumb/t.).lc($f->{filename})) {
  				make_image_thumb( { file => $f, maxwidth => 145, maxheight => 120, key => "t." })
			}
			print_image_thumb($f, "t.", -1);
			$i++;
			last if ($i == $count);
			}
		}
	print "</tr>" if (!$vertical);
	print qq!</table>\n!;
	}

sub user_image_gallery
	{
	my ($args) = @_;
	my $files = $args->{files};
	my $vertical = $args->{vertical} ? 1 : 0;
	my $count = $args->{count} || 4;
	my %seen;
	print qq(<table border=0 cellpadding=3 cellspacing=3 width="100%">);
	print "<tr>" if (!$vertical);
	for (my $i = 0; $i < $count; $i++)
		{
		my $f = get_random_image($files, \%seen, $i);
		last if ($f == -1);
		make_image_thumb( { file => $f, maxwidth => 145, maxheight => 120, key => "t." })
			if (! -e qq($data_path/$f->{thread}/.thumb/t.).lc($f->{filename}));
		print "<tr>" if ($vertical);
		print_image_thumb($f, "t.", -1);
		print "</tr>" if ($vertical);
		print "\n";
		}
	print "</tr>" if (!$vertical);
	print qq!</table>\n!;
	}

sub get_random_image
	{
	my ($files, $seen, $i) = @_;
	my $f;
	$c = 0;
	while ($f = $files->[(int rand @$files)])
		{
		return -1 if ((++$c) == 69);
		print "$i/$c: $f->{id} -- $f->{private} -- $seen->{$f->{id}}<br>" if ($DEBUG);
		next if (exists($seen->{$f->{id}}));
		$seen->{$f->{id}} = 1;
		next if ($f->{filename} !~ /(jpe?g|gif|png|bmp|tif)$/i);
		last if (    ( $USER == -1 && $f->{private} > 0 )
				  || ( ref($USER)  && $f->{private} > 1 ) );
		last;
		}
	return $f;
	}

sub find_jpeg
	{
	my ($files, $flagged_id) = @_;
	my $flagged = -1;
	my $fagid = -1;
	my $i = 0;
	my $j = 0;
	foreach my $f (@$files)
		{
		if ($$f{filename} =~ /(jpe?g|gif|png|bmp|tif)$/i)
			{
			if ($$f{id} == $flagged_id || $flagged == -1)
				{
				$fagid = $$f{id};
				$flagged = $i;
				}
			$j++;
			}
		$i++;
		}
	if ($flagged > -1)
		{
		print_flagged_jpeg($files->[$flagged])
		}
	return ($j, $fagid);
	}

sub find_jpeg_v2
	{
	my ($files, $flagged_id) = @_;
	my $flagged = -1;
	my $fagid = -1;
	my $i = 0;
	my $j = 0;
	foreach my $f (@$files)
		{
		if ($$f{filename} =~ /(jpe?g|gif|png|bmp|tif)$/i)
			{
			if ($$f{id} == $flagged_id || $flagged == -1)
				{
				$fagid = $$f{id};
				$flagged = $i;
				}
			$j++;
			}
		$i++;
		}
	if ($flagged > -1)
		{ return ($j, $files->[$flagged]); }
	else
		{ return ($j, -1); }
	}

1;