#!/usr/bin/perl
package IkiWiki;

use warnings;
use strict;
use Test::More;

BEGIN {
        unless (eval { require XML::Twig }) {
                eval q{
                        use Test::More skip_all => "XML::Twig is not available"
                }
        }
}

BEGIN { use_ok("IkiWiki"); }
BEGIN { use_ok("IkiWiki::Render"); }
BEGIN { use_ok("IkiWiki::Plugin::map"); }
BEGIN { use_ok("IkiWiki::Plugin::mdwn"); }

ok(! system("rm -rf t/tmp; mkdir t/tmp"));

$config{verbose} = 1;
$config{srcdir} = 't/tmp';
$config{underlaydir} = 't/tmp';
$config{underlaydirbase} = '.';
$config{templatedir} = 'templates';
$config{usedirs} = 1;
$config{htmlext} = 'html';
$config{wiki_file_chars} = "-[:alnum:]+/.:_";
$config{userdir} = "users";
$config{tagbase} = "tags";
$config{default_pageext} = "mdwn";
$config{wiki_file_prune_regexps} = [qr/^\./];
$config{autoindex_commit} = 0;

is(checkconfig(), 1);

%oldrenderedfiles=%pagectime=();
%pagesources=%pagemtime=%oldlinks=%links=%depends=%typedlinks=%oldtypedlinks=
%destsources=%renderedfiles=%pagecase=%pagestate=();

my @pages = qw(
alpha
alpha/1
alpha/1/i
alpha/1/ii
alpha/1/iii
alpha/1/iv
alpha/2
alpha/2/a
alpha/2/b
alpha/3
beta
);

foreach my $page (@pages) {
	# we use a non-default extension for these, so they're distinguishable
	# from programmatically-created pages
	$pagesources{$page} = "$page.mdwn";
	$destsources{$page} = "$page.mdwn";
	$pagemtime{$page} = $pagectime{$page} = 1000000;
	writefile("$page.mdwn", "t/tmp", "your ad here");
}

sub comment {
	my $str = shift;
	$str =~ s/^/# /gm;
	print $str;
}

sub node {
	my $name = shift;
	my $kids = shift;
	my %stuff = @_;

	return { %stuff, name => $name, kids => $kids };
}

sub check_nodes {
	my $ul = shift;
	my $expected = shift;

	is($ul->tag, 'ul');

	# expected is a list of hashes
	# ul is a list of li
	foreach my $li ($ul->children) {
		my @kids = $li->children;

		is($li->tag, 'li');

		my $expectation = shift @$expected;

		is($kids[0]->tag, 'a');
		my $a = $kids[0];

		if ($expectation->{parent}) {
			is($a->att('class'), 'mapparent');
		}
		else {
			is($a->att('class'), 'mapitem');
		}

		is_deeply([$a->text], [$expectation->{name}]);

		if (@{$expectation->{kids}}) {
			is(scalar @kids, 2);

			check_nodes($kids[1], $expectation->{kids});
		}
		else {
			is_deeply([@kids], [$a]);
		}
	}
}

sub check {
	my $pagespec = shift;
	my $expected = shift;
	comment("*** $pagespec ***\n");

	my $html = IkiWiki::Plugin::map::preprocess(pages => $pagespec,
		page => 'map',
		destpage => 'map');
	comment($html);
	my $tree = XML::Twig->new(pretty_print => 'indented');
	eval {
		$tree->parse($html);
	};
	if ($@) {
		print "malformed XML: $@\n$html\n";
		ok(0);
	}
	my $fragment = $tree->root;

	is($fragment->tag, 'div');
	is($fragment->att('class'), 'map');

	if (@$expected) {
		check_nodes(($fragment->children)[0], $expected);
	}
	else {
		ok(! $fragment->children);
	}

	$tree->dispose;
}

check('doesnotexist', []);

check('alpha', [node('alpha', [])]);

check('alpha/*',
	[
		node('1', [
			node('i', []),
			node('ii', []),
			node('iii', []),
			node('iv', []),
		]),
		node('2', [
			node('a', []),
			node('b', []),
		]),
		node('3', []),
	]);

check('alpha or alpha/*',
	[
		node('alpha', [
			node('1', [
				node('i', []),
				node('ii', []),
				node('iii', []),
				node('iv', []),
			]),
			node('2', [
				node('a', []),
				node('b', []),
			]),
			node('3', []),
		]),
	]);

check('alpha or alpha/1 or beta',
	[
		node('alpha', [
			node('1', []),
		]),
		node('beta', []),
	]);

check('alpha/1 or beta',
	[
		node('alpha', [
			node('1', []),
		], parent => 1),
		node('beta', []),
	]);

check('alpha/1/i* or alpha/2/a or beta',
	[
		node('alpha', [
			node('1', [
				node('i', []),
				node('ii', []),
				node('iii', []),
				node('iv', []),
			], parent => 1),
			node('2', [
				node('a', []),
			], parent => 1),
		], parent => 1),
		node('beta', []),
	]);

check('alpha/1/i* or alpha/2/a',
	[
		node('1', [
			node('i', []),
			node('ii', []),
			node('iii', []),
			node('iv', []),
		], parent => 1),
		node('2', [
			node('a', []),
		], parent => 1),
	]);

check('alpha/1/i*',
	[
		node('i', []),
		node('ii', []),
		node('iii', []),
		node('iv', []),
	]);

done_testing;

1;