#! /usr/bin/perl
# 
# $Id$
# List of projects Perl template.
# Copyright (C) 2003 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::Index;
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;

BEGIN{ open F,"Makefile"; our $top_dir=pop @{[split /\s/,(grep /^top_srcdir/,<F>)[0]]}; eval "use lib '$top_dir'"; close F; }
use My::Web;
require 'CGI';
require 'My::Project';

use constant ENTRIES=>"CVS/Entries";
use constant ENTRIES_LOG=>"CVS/Entries.Log";


My::Web->init(
		"__PACKAGE__"=>__PACKAGE__,
		"title"=>'Project List',
		);
My::Web->heading();

my $CGI=CGI->new();

print <<'HERE';
<h1>Project List of <a href="mailto:web-www.jankratochvil.net@jankratochvil.net">Jan Kratochvil</a></h1>

<form action="Index.html.pl" method="get"><p>
<select name="description_opt" onchange="this.form.submit();">
HERE
print '<option value="0"'.(!$CGI->param("description_opt") ? ' selected="selected"' : '').'>only list</option>'."\n";
print '<option value="1"'.( $CGI->param("description_opt") ? ' selected="selected"' : '').'>incl. descriptions</option>'."\n";
print <<'HERE';
</select>
<input type="submit" value="Update" />
</p></form>
HERE

my %dirs;
for my $ENTRIES (ENTRIES,ENTRIES_LOG) {
	local *E;
	next if !open E,$ENTRIES;
	while (<E>) {
		chomp;
		do { $dirs{$1}=1; next; } if m#^(?:A )?D/([^/]*)/#;
		next if m#^/([^/]*)/# ;
		next if /^D$/;
		warn "File $ENTRIES contains invalid line \"$_\": $!";
		}
	close E;
	}

my %item;
for my $dir (keys(%dirs)) {
	require "project::${dir}::ListItem";
	my $item=eval('\@project::'.$dir.'::ListItem::ListItem');
	do { warn "Broken project/$dir/ListItem.pm"; next; } if !defined $item;
	$item{$dir}={ My::Project::project_arr_to_hash(@$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 {
		$_[0]=~s#<a\s[^>]*>([^<]*)</a>#$1#g;
		return "<a href=\"".$_[1]."/\">".$_[0]."</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)))}}));
	}

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];
				my $r=($item{$a}{$order_by} cmp $item{$b}{$order_by});
				$r=-$r if $minus;
				return $r if $r;
				}
			return 0;
			} keys(%item);
	for my $row (@rows_ordered) {
		print '<tr>';
		for my $col (@col_order) {
			next if defined $col{$col}{"show"} && !$col{$col}{"show"};
			print '<td>';
			if (!$col{$col}{"format"}) {
				print(($item{$row}{$col} || ""));
				}
			else {
				print(&{$col{$col}{"format"}}($item{$row}{$col},$row));
				}
			print '</td>';
			}
		print '</tr>'."\n";
		if ($CGI->param("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";

My::Web->footer();
