#!/usr/bin/perl
use strict;
use warnings;

use HTML::TokeParser;

my $file = 'school.html';
my $p = HTML::TokeParser->new($file) or die "Can't open: $!";

my %school;
while (my $tag = $p->get_tag('div', '/html')) {
	# first move to the right div that contains the information
	last if $tag->[0] eq '/html';
	next unless exists $tag->[1]{'id'} and $tag->[1]{'id'} eq 'inhalt_large';
	
	$p->get_tag('h1');
	$school{'location'} = $p->get_text('/h1');
	
	while (my $tag = $p->get_tag('div')) {
		last if exists $tag->[1]{'id'} and $tag->[1]{'id'} eq 'fusszeile';
		
		# get the school name from the heading
		next unless exists $tag->[1]{'class'} and $tag->[1]{'class'} eq 'fm_linkeSpalte';
		$p->get_tag('h2');
		$school{'name'} = $p->get_text('/h2');
		
		# verify format for school type
		$tag = $p->get_tag('span');
		unless (exists $tag->[1]{'class'} and $tag->[1]{'class'} eq 'schulart_text') {
			warn "unexpected format: parsing stopped";
			last;
		}
		$school{'type'} = $p->get_text('/span');
		
		# verify format for address
		$tag = $p->get_tag('p');
		unless (exists $tag->[1]{'class'} and $tag->[1]{'class'} eq 'einzel_text') {
			warn "unexpected format: parsing stopped";
			last;
		}
		$school{'address'} = clean_address($p->get_text('/p'));
		
		# find the description
		$tag = $p->get_tag('p');
		$school{'description'} = $p->get_text('/p');
	}
}

print qq/$school{'name'}\n/;
print qq/$school{'location'}\n/;
print qq/$school{'type'}\n/;

foreach (@{$school{'address'}}) {
	print "$_\n";
}

print qq/\nDescription: $school{'description'}\n/;

sub clean_address {
	my $text = shift;
	my @lines = split "\n", $text;
	foreach (@lines) {
		s/^\s+//;
		s/\s+$//;
	}
	return \@lines;
}