# Copyright (C) 2012 Patrick "P. J." McDermott
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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, see <http://www.gnu.org/licenses/>.

use strict;
use warnings;

use HTML::Element;

package MarkdownBook::Section::HTML;

our @ISA = qw(MarkdownBook::Section);

sub new
{
	my ($class, $doc, $num, $elem) = @_;
	my $self;
	my $child;
	my $i = -1;
	my $secid;
	my $sectitle;

	$class = ref($class) || $class;
	$self = {};
	bless($self, $class);

	$self->{'document'} = $doc;
	$self->{'number'} = $num;
	$self->{'element'} = $elem;

	foreach $child (MarkdownBook::HTMLTree::each_text($elem)) {

		++$i;

		# Set "id" attribute.
		if ($child =~ m/^[^\[\]]*\[([^\]]+)\][^\[\]]*$/) {
			$secid = $child;
			$secid =~ s/^[^\[\]]*\[([^\]]+)\][^\[\]]*$/$1/;
			$elem->attr('id', $secid);
		}

		# Prefix section title with section number.
		$child =~ s/^([^\[]+)[ ]*\[[^\]]+\]$/$1/;
		$child =~ s/[ ]*$//;

		# Set section title.
		$sectitle .= $child;
		$elem->splice_content($i, 1, $num . ' ' . $child);

	}

	return $self;
}

1;