# $Id$
# List of projects Perl template.
# Copyright (C) 2003-2005 Jan Kratochvil <project-www.jankratochvil.net@jankratochvil.net>
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; exactly version 2 of June 1991 is required
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


package project::List;
require 5.6.0;	# at least 'use warnings;' but we need some 5.6.0+ modules anyway
our $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
our $CVS_ID=q$Id$;
use strict;
use warnings;

use My::Web;
Wrequire 'project::Lib';
use Carp qw(confess cluck);


sub handler
{
My::Web->init(
		"title"=>'Project List',
		"args_check"=>{
				"platform"=>'^(?:platform)?$',
				},
#		"rel_up"=>"/",	# TODO:homepage
#		"rel_start"=>"/",	# TODO:homepage
		# Not used if no full listing is done:
		#"footer_ids"=>0,
		);
My::Web->heading();


print(project::Lib->views(($W->{"args"}{"platform"} ? "BriefPlatform" : "BriefUnified")));
print(project::Lib->platforms(undef(),"novskip"=>1)) if $W->{"args"}{"platform"};

my %item=project::Lib->name_to_hashref();
my %item_unused=%item;

# $col{"name"}{"show"}=1
# $col{"name"}{"format"}=sub { "<".$_[0].">"; }
# $col{"name"}{""}="Project name";
# @col_order

my @row_order=qw(-priority);
my @col_order=qw(name summary license maintenance language);
my %col;

sub format_url ($) { return (!$_[0] ? "" : '<a href="'.$_[0].'">X</a>'); }

$col{"name"}{"format"}=sub {
		local $_=$_[0];
		s#<a\s[^>]*>([^<]*)</a>#$1#g;
		return "<a href=\"".$_[1]."/\">"
				.(!$My::Web::W->{"args"}{"W"} ? "" : $item{$_[1]}{"priority"}.":")
				.$_."</a>";
		};

$col{"license"}{"format"}=sub {
		my %known=(
				"PD"=>"<a href=\"http://www.gnu.org/philosophy/categories.html#PublicDomainSoftware\">PD</a>",
				"GPL"=>"<a href=\"http://www.gnu.org/licenses/gpl.html\">GPL</a>",
				"LGPL"=>"<a href=\"http://www.gnu.org/licenses/lgpl.html\">LGPL</a>",
				);
		return $known{$_[0]} if $known{$_[0]};
		return $_[0];
		};

$col{"maintenance"}{"format"}=sub {
		return ($_[0]=~/^([^-]*)/)[0];
		};

$col{"online-demo"}{"format"}=\&format_url;
$col{"download"}{"format"}=\&format_url;
$col{"name"}{""}="Project Name";
$col{"summary"}{""}="Abstract";
$col{"license"}{""}="Copying";
$col{"maintenance"}{""}="State";
$col{"language"}{""}="Language";

# Fill in cols not contained in @col_order
if (0) {
	my %col_order=map(($_=>1),@col_order);
	push @col_order,map({ ($col_order{$_} ? () : $_); } keys(%{{ map(($_=>1),map((keys(%{$item{$_}})),keys(%item)))}}));
	}

my $print_one_platform=sub ($)
{
my($platform)=@_;

	print '<table border="1">'."\n";
		print '<tr>';
			for my $col (@col_order) {
				next if defined $col{$col}{"show"} && !$col{$col}{"show"};
				print '<th>'.($col{$col}{""} || "[$col]").'</th>';
				}
		print '</tr>'."\n";
		my @rows_ordered=sort {
				for my $order_by (@row_order,"name") {
					my $order_by=$order_by;
					my $minus=($order_by=~s/^(-)//)[0];
					# FIXME: 'cmp' or '<=>'?
					# Currently it complains on "name" not <=>able if two projects have the same 'priority'.
					my $r=($item{$a}{$order_by} <=> $item{$b}{$order_by});
					$r=-$r if $minus;
					return $r if $r;
					}
				return 0;
				} map(($platform && $item{$_}{"platform"} ne $platform ? () : ($_)),keys(%item));
		for my $row (@rows_ordered) {
			print '<tr>';
			for my $col (@col_order) {
				next if defined $col{$col}{"show"} && !$col{$col}{"show"};
				delete $item_unused{$row};
				print '<td>';
				if (!$col{$col}{"format"}) {
					print(($item{$row}{$col} || ""));
					}
				else {
					print(&{$col{$col}{"format"}}($item{$row}{$col},$row));
					}
				print '</td>';
				}
			print '</tr>'."\n";
			if ($W->{"args"}{"description_opt"}) {
				print '<tr><td style="border: none;"></td>';
				print '<td colspan="'.(scalar(@col_order)-1).'"><blockquote>'.$item{$row}{"description"}.'</blockquote></td>';
				print '</tr>'."\n";
				print '<tr><td style="border: none;" colspan="'.scalar(@col_order).'">&nbsp;</td></tr>'."\n";
				}
			}
	print '</table>'."\n";
};


if (!$W->{"args"}{"platform"}) {
	&{$print_one_platform}(undef());
	}
else {
	my @platforms=@project::Lib::platforms;
	while (@platforms) {
		my $platform_sym =shift @platforms;
		my $platform_name=shift @platforms;
		print '<h2 id="'.$platform_sym.'">'.$platform_name.'</h2>'."\n";
		&{$print_one_platform}($platform_sym);
		}
	}
cluck "INVALID 'platform': $_" for keys(%item_unused);


exit;
}
1;