[plack-app-gruntmaster.git] / lib / Plack / App / Gruntmaster / HTML.pm

package Plack::App::Gruntmaster::HTML;
use v5.14;
use parent qw/Exporter/;
our @EXPORT = qw/render render_article/;

use File::Slurp qw/read_file/;
use HTML::Element::Library;
use HTML::TreeBuilder;
use POSIX qw//;
use Data::Dumper qw/Dumper/;

my $optional_end_tags = {%HTML::Tagset::optionalEndTag, tr => 1, td => 1, th => 1};

sub ftime ($)   { POSIX::strftime '%c', localtime shift }
sub literal ($) {
	my ($html) = @_;
	return unless $html;
	my $b = HTML::TreeBuilder->new;
	$b->ignore_unknown(0);
	$b->parse($html);
	HTML::Element::Library::super_literal $b->guts->as_HTML(undef, undef, $optional_end_tags);
}

sub HTML::Element::edit_href {
	my ($self, $sub) = @_;
	local $_ = $self->attr('href');
	$sub->();
	$self->attr(href => $_);
}

sub HTML::Element::iter3 {
	my ($self, $data, $code) = @_;
	my $orig = $self;
	my $prev = $orig;
	for my $el (@$data) {
		my $current = $orig->clone;
		$code->($el, $current);
		$prev->postinsert($current);
		$prev = $current;
	}
	$orig->detach;
}

sub HTML::Element::fid    { shift->look_down(id    => shift) }
sub HTML::Element::fclass { shift->look_down(class => qr/\b$_[0]\b/) }

sub HTML::Element::namedlink {
	my ($self, $id, $name) = @_;
	$name = $id unless $name =~ /[[:graph:]]/;
	$self = $self->find('a');
	$self->edit_href(sub {s/id/$id/});
	$self->replace_content($name);
}

my %page_cache;
for (<tmpl/*>) {
	my ($tmpl, $lang) = m,tmpl/(\w+)\.(\w+),;
	my $builder = HTML::TreeBuilder->new;
	$builder->ignore_unknown(0);
	$page_cache{$tmpl, $lang} = $builder->parse_file($_);
}

sub render {
	my ($tmpl, $lang, %args) = @_;
	$lang //= 'en';
	my $meat = _render($tmpl, $lang, %args);
	_render('skel', $lang, %args, meat => $meat)
}

sub render_article {
	my ($art, $lang, %args) = @_;
	$lang //= 'en';
	my $title = read_file "a/$art.$lang.title";
	chomp $title;
	my $meat  = read_file "a/$art.$lang";
	_render('skel', $lang, title => $title , meat => $meat, %args)
}

sub _render {
	my ($tmpl, $lang, %args) = @_;
	my $tree = $page_cache{$tmpl, $lang}->clone or die "No such template/language combination: $tmpl/$lang\n";
	$tree = $tree->guts unless $tmpl eq 'skel';
	$tree->defmap(smap => \%args);
	my $process = __PACKAGE__->can("process_$tmpl");
	$process->($tree, %args) if $process;
	$_->detach for $tree->look_down(static => $args{static} ? 'no' : 'yes');
	$_->attr('static', undef) for $tree->look_down(sub {$_[0]->attr('static')});
	$_->attr('smap', undef) for $tree->look_down(sub {$_[0]->attr('smap')});
	$tree->as_HTML(undef, undef, $optional_end_tags);
}

my $logo = read_file 'mclogo.svg';
$logo =~ y/\n//d;
$logo =~ s/(\s+)/ /g;

sub process_skel {
	my ($tree, %args) = @_;
	$tree->fid('logo')->replace_with(HTML::Element::Library::super_literal $logo);
	$tree->content_handler(
		title   =>         $args{title},
		content => literal $args{meat});
}

sub process_us_entry {
	my ($tree, %args) = @_;
	$tree->fid($_)->attr('href', "/$_/?owner=$args{id}") for qw/log pb/;
	$tree->fid('track_user')->attr('data-user', $args{id});
	my @solved = map { $_->{solved} ? ($_->{problem}) : () } @{$args{problems}};
	my @attempted = map { !$_->{solved} ? ($_->{problem}) : () } @{$args{problems}};

	my $pbiter = sub {
		my ($data, $li) = @_;
		$li->find('a')->namedlink($data);
	};
	$tree->fid('solved')->find('li')->iter3(\@solved, $pbiter);
	$tree->fid('attempted')->find('li')->iter3(\@attempted, $pbiter);
	$tree->fid('solved_count')->replace_content(scalar @solved);
	$tree->fid('attempted_count')->replace_content(scalar @attempted);

	my $ctiter = sub {
		my ($data, $td) = @_;
		$td->fclass('contest')->namedlink($data->{contest}, $data->{contest_name});
		$td->fclass('score')->replace_content($data->{score});
		$td->fclass('rank')->replace_content($data->{rank});
	};
	$tree->find('table')->find('tbody')->find('tr')->iter3($args{contests}, $ctiter);
}

sub process_us {
	my ($tree, %args) = @_;
	my $iter = sub {
		my ($data, $tr) = @_;
		$tr->fclass('user')->namedlink($data->{id}, $data->{name});
		$tr->fclass($_)->replace_content($data->{$_}) for qw/solved attempted contests/;
	};
	$tree->find('tbody')->find('tr')->iter3($args{us}, $iter);
}

sub process_ct_entry {
	my ($tree, %args) = @_;
	$_->edit_href (sub {s/contest_id/$args{id}/}) for $tree->find('a');
	$tree->fid('editorial')->detach unless $args{finished};
	$tree->fid('links')->detach unless $args{started};
	my $status = ($args{time} < $args{start} ? 'starts' : 'ends');
	$tree->fclass('timer')->attr('data-stop', $status eq 'ends' ? $args{stop} : $args{start});
	$tree->content_handler(
		start       => ftime   $args{start},
		stop        => ftime   $args{stop},
		status      => $status,
		description => literal $args{description});
	$tree->fid('ctcountdown')->detach if $args{time} >= $args{stop};
}

sub process_ct {
	my ($tree, %args) = @_;
	my $iter = sub {
		my ($data, $tr) = @_;
		$data->{$_} = ftime $data->{$_} for qw/start stop/;
		$tr->hashmap(class => $data, [qw/name owner/]);
		$tr->fclass('name')->namedlink($data->{id}, $data->{name});
		$tr->fclass('owner')->namedlink($data->{owner}, $data->{owner_name});
	};
	$args{$_} ? $tree->fid($_)->find('tbody')->find('tr')->iter3($args{$_}, $iter) : $tree->fid($_)->detach for qw/running pending finished/;
}

sub process_pb_entry {
	my ($tree, %args) = @_;
	$tree->fid('owner')->edit_href(sub{s/owner_id/$args{owner}/});
	$tree->fid('job_log')->edit_href(sub{s/problem_id/$args{id}/});
	$tree->fid('solution')->edit_href(sub{s/problem_id/$args{id}/});
	$tree->content_handler(
		statement => literal $args{statement},
		level     => ucfirst $args{level},
		author    =>         $args{author},
		owner     =>         $args{owner_name} || $args{owner});
	if ($args{limits}) {
		my @limits = (@{$args{limits}}, {format => 'Other', timeout => $args{timeout} });
		@limits = map { sprintf '%s (%s)', @{$_}{qw/timeout format/} } @limits;
		$tree->look_down(smap => 'timeout')->replace_content(join ', ', @limits);
	}
	if ($args{contest_stop}) {
		$tree->fid('solution')->detach;
		$tree->fid('solution_modal')->detach;
		$tree->fid('score')->replace_content($args{value});
		$tree->fid('countdown')->attr('data-stop' => $args{contest_stop});
	} else {
		$tree->fid('job_log')->edit_href(sub{$_ .= "&private=$args{private}"}) if $args{private};
		$tree->fid('solution')->detach unless $args{solution};
		$_->detach for $tree->fclass('rc'); # requires contest
		$tree->fid('solution_modal')->fclass('modal-body')->replace_content(literal $args{solution});
	}
	if ($args{cansubmit}) {
		$tree->fid('nosubmit')->detach;
		$tree->look_down(name => 'problem')->attr(value => $args{id});
		my $contest = $tree->look_down(name => 'contest');
		$contest->attr(value => $args{args}{contest}) if $args{args}{contest};
		$contest->detach unless $args{args}{contest}
	} else {
		$tree->fid('nosubmit')->find('a')->edit_href(sub{s/id/$args{id}/});
		$tree->fid('submit')->detach
	}
}

sub process_sol {
	my ($tree, %args) = @_;
	$tree->content_handler(solution => literal $args{solution});
}

sub process_pb {
	my ($tree, %args) = @_;
	my $titer = sub {
		my ($data, $tr) = @_;
		$tr->set_child_content(class => 'author', $data->{author});
		$tr->fclass('name')->namedlink($data->{id}, $data->{name});
		$tr->fclass('name')->find('a')->edit_href(sub {$_ .= "?contest=$args{contest}"}) if $args{contest};
		$tr->fclass('owner')->namedlink($data->{owner}, $data->{owner_name});
		$tr->find('td')->attr(class => $tr->find('td')->attr('class').' warning') if $data->{private} && !$args{contest};
	};
	my $iter = sub {
		my ($data, $div) = @_;
		$div->attr(id => $data);
		$div->find('h2')->replace_content(ucfirst $data);
		$div->find('tbody')->find('tr')->iter3($args{$data}, $titer);
	};
	$tree->fid('beginner')->iter3([grep {$args{$_}} qw/beginner easy medium hard/], $iter);
	$tree->fid('open-alert')->detach unless $args{contest};
}

sub process_log_entry {
	my ($tree, %args) = @_;
	$tree->fid('problem')->namedlink(@args{qw/problem problem_name/});
	$tree->fid('owner')->namedlink(@args{qw/owner owner_name/});
	$tree->fid('source')->namedlink("$args{id}.$args{extension}", sprintf '%.2fKB', $args{size}/1024);
	if ($args{contest}) {
		$tree->fid('contest')->namedlink(@args{qw/contest contest_name/});
		$tree->fid('problem')->find('a')->edit_href(sub {$_.="?contest=$args{contest}"});
	} else {
		$tree->fid('contest')->left->detach;
		$tree->fid('contest')->detach;
	}

	$args{errors} ? $tree->fid('errors')->find('pre')->replace_content($args{errors}) : $tree->fid('errors')->detach;
	my $iter = sub {
		my ($data, $tr) = @_;
		$data->{time} = sprintf '%.4fs', $data->{time};
		$tr->defmap(class => $data);
		$tr->fclass('result_text')->attr(class => "r$data->{result}")
	};
	$tree->fclass('result_text')->replace_content($args{result_text});
	$tree->fclass('result_text')->attr(class => "r$args{result}");
	$args{results} ? $tree->fid('results')->find('tbody')->find('tr')->iter3($args{results}, $iter) : $tree->fid('results')->detach;
	$tree->fid('no_results')->detach if $tree->fid('results') || $tree->fid('errors');
}

sub process_log {
	my ($tree, %args) = @_;
	my $iter = sub {
		my ($data, $tr) = @_;
		$tr->fclass('id')->namedlink($data->{id});
		$tr->fclass('problem')->namedlink($data->{problem}, $data->{problem_name});
		$tr->fclass('problem')->find('a')->edit_href(sub{$_ .= "?contest=$args{args}{contest}"}) if $args{args}{contest};
		$tr->fclass('contest')->namedlink($data->{contest}, $data->{contest_name}) if $data->{contest};
		$tr->fclass('contest')->replace_content('None') unless $data->{contest};
		$tr->fclass('date')->replace_content(ftime $data->{date});
		$tr->fclass('source')->namedlink("$data->{id}.$data->{extension}", sprintf "%.2fKB %s", $data->{size}/1024, Plack::App::Gruntmaster::FORMAT_EXTENSION()->{$data->{format}});
		$tr->fclass('owner')->namedlink($data->{owner}, $data->{owner_name});
		$tr->fclass('result_text')->replace_content($data->{result_text});
		$tr->fclass('result_text')->attr(class => "r$data->{result}");
		$tr->find('td')->attr(class => $tr->find('td')->attr('class').' warning') if $data->{private};
	};
	$tree->find('table')->find('tbody')->find('tr')->iter3($args{log}, $iter);
	$args{next_page} ? $tree->fclass('next')->namedlink($args{next_page}, 'Next') : $tree->fclass('next')->detach;
	$args{previous_page} ? $tree->fclass('previous')->namedlink($args{previous_page}, 'Previous') : $tree->fclass('previous')->detach;
	for my $cls (qw/next previous/) {
		my $elem = $tree->fclass($cls);
		next unless $elem;
		delete $args{args}{page};
		my $str = join '&', map { $_ . '=' . $args{args}{$_} } keys %{$args{args}};
		$elem->find('a')->edit_href(sub{s/$/&$str/}) if $str;
	}
	$tree->fclass('current')->replace_content("Page $args{current_page} of $args{last_page}");

	my @detach;
	push @detach, $args{args}{$_} ? $tree->fclass($_) : () for qw/problem contest owner/;
	$_->detach for @detach;
}

sub process_st {
	my ($tree, %args) = @_;
	$args{problems} //= [];
	my $pbiter = sub {
		my ($data, $th) = @_;
		$th->attr(class => undef);
		$th->namedlink(@$data);
		$th->find('a')->edit_href(sub{s/$/?contest=$args{args}{contest}/});
	};
	$tree->fclass('problem')->iter3($args{problems}, $pbiter);
	my $iter = sub {
		my ($st, $tr) = @_;
		$tr->set_child_content(class => 'rank', $st->{rank});
		$tr->set_child_content(class => 'score', $st->{score});
		$tr->fclass('user')->namedlink($st->{user}, $st->{user_name});
		my $pbscore = $tr->fclass('pbscore');
		$pbscore->iter($pbscore => @{$st->{scores}});
	};
	$tree->find('tbody')->find('tr')->iter3($args{st}, $iter);
}

sub process_ed {
	my ($tree, %args) = @_;
	$tree->content_handler(editorial => literal $args{editorial});
	my $iter = sub {
		my ($data, $div) = @_;
		$div->set_child_content(class => 'value', $data->{value});
		$div->set_child_content(class => 'solution', literal $data->{solution});
		$div->fclass('problem')->namedlink($data->{id}, $data->{name});
	};
	my @pb = map { @{$args{$_} // []} } qw/beginner easy medium hard/;
	$tree->fclass('well')->iter3(\@pb, $iter);
}

1;
__END__
Commit	Line	Data
	1	package Plack::App::Gruntmaster::HTML;
	2	use v5.14;
	3	use parent qw/Exporter/;
	4	our @EXPORT = qw/render render_article/;
	5
	6	use File::Slurp qw/read_file/;
	7	use HTML::Element::Library;
	8	use HTML::TreeBuilder;
	9	use POSIX qw//;
	10	use Data::Dumper qw/Dumper/;
	11
	12	my $optional_end_tags = {%HTML::Tagset::optionalEndTag, tr => 1, td => 1, th => 1};
	13
	14	sub ftime ($) { POSIX::strftime '%c', localtime shift }
	15	sub literal ($) {
	16	my ($html) = @_;
	17	return unless $html;
	18	my $b = HTML::TreeBuilder->new;
	19	$b->ignore_unknown(0);
	20	$b->parse($html);
	21	HTML::Element::Library::super_literal $b->guts->as_HTML(undef, undef, $optional_end_tags);
	22	}
	23
	24	sub HTML::Element::edit_href {
	25	my ($self, $sub) = @_;
	26	local $_ = $self->attr('href');
	27	$sub->();
	28	$self->attr(href => $_);
	29	}
	30
	31	sub HTML::Element::iter3 {
	32	my ($self, $data, $code) = @_;
	33	my $orig = $self;
	34	my $prev = $orig;
	35	for my $el (@$data) {
	36	my $current = $orig->clone;
	37	$code->($el, $current);
	38	$prev->postinsert($current);
	39	$prev = $current;
	40	}
	41	$orig->detach;
	42	}
	43
	44	sub HTML::Element::fid { shift->look_down(id => shift) }
	45	sub HTML::Element::fclass { shift->look_down(class => qr/\b$_[0]\b/) }
	46
	47	sub HTML::Element::namedlink {
	48	my ($self, $id, $name) = @_;
	49	$name = $id unless $name =~ /[[:graph:]]/;
	50	$self = $self->find('a');
	51	$self->edit_href(sub {s/id/$id/});
	52	$self->replace_content($name);
	53	}
	54
	55	my %page_cache;
	56	for (<tmpl/*>) {
	57	my ($tmpl, $lang) = m,tmpl/(\w+)\.(\w+),;
	58	my $builder = HTML::TreeBuilder->new;
	59	$builder->ignore_unknown(0);
	60	$page_cache{$tmpl, $lang} = $builder->parse_file($_);
	61	}
	62
	63	sub render {
	64	my ($tmpl, $lang, %args) = @_;
	65	$lang //= 'en';
	66	my $meat = _render($tmpl, $lang, %args);
	67	_render('skel', $lang, %args, meat => $meat)
	68	}
	69
	70	sub render_article {
	71	my ($art, $lang, %args) = @_;
	72	$lang //= 'en';
	73	my $title = read_file "a/$art.$lang.title";
	74	chomp $title;
	75	my $meat = read_file "a/$art.$lang";
	76	_render('skel', $lang, title => $title , meat => $meat, %args)
	77	}
	78
	79	sub _render {
	80	my ($tmpl, $lang, %args) = @_;
	81	my $tree = $page_cache{$tmpl, $lang}->clone or die "No such template/language combination: $tmpl/$lang\n";
	82	$tree = $tree->guts unless $tmpl eq 'skel';
	83	$tree->defmap(smap => \%args);
	84	my $process = __PACKAGE__->can("process_$tmpl");
	85	$process->($tree, %args) if $process;
	86	$_->detach for $tree->look_down(static => $args{static} ? 'no' : 'yes');
	87	$_->attr('static', undef) for $tree->look_down(sub {$_[0]->attr('static')});
	88	$_->attr('smap', undef) for $tree->look_down(sub {$_[0]->attr('smap')});
	89	$tree->as_HTML(undef, undef, $optional_end_tags);
	90	}
	91
	92	my $logo = read_file 'mclogo.svg';
	93	$logo =~ y/\n//d;
	94	$logo =~ s/(\s+)/ /g;
	95
	96	sub process_skel {
	97	my ($tree, %args) = @_;
	98	$tree->fid('logo')->replace_with(HTML::Element::Library::super_literal $logo);
	99	$tree->content_handler(
	100	title => $args{title},
	101	content => literal $args{meat});
	102	}
	103
	104	sub process_us_entry {
	105	my ($tree, %args) = @_;
	106	$tree->fid($_)->attr('href', "/$_/?owner=$args{id}") for qw/log pb/;
	107	$tree->fid('track_user')->attr('data-user', $args{id});
	108	my @solved = map { $_->{solved} ? ($_->{problem}) : () } @{$args{problems}};
	109	my @attempted = map { !$_->{solved} ? ($_->{problem}) : () } @{$args{problems}};
	110
	111	my $pbiter = sub {
	112	my ($data, $li) = @_;
	113	$li->find('a')->namedlink($data);
	114	};
	115	$tree->fid('solved')->find('li')->iter3(\@solved, $pbiter);
	116	$tree->fid('attempted')->find('li')->iter3(\@attempted, $pbiter);
	117	$tree->fid('solved_count')->replace_content(scalar @solved);
	118	$tree->fid('attempted_count')->replace_content(scalar @attempted);
	119
	120	my $ctiter = sub {
	121	my ($data, $td) = @_;
	122	$td->fclass('contest')->namedlink($data->{contest}, $data->{contest_name});
	123	$td->fclass('score')->replace_content($data->{score});
	124	$td->fclass('rank')->replace_content($data->{rank});
	125	};
	126	$tree->find('table')->find('tbody')->find('tr')->iter3($args{contests}, $ctiter);
	127	}
	128
	129	sub process_us {
	130	my ($tree, %args) = @_;
	131	my $iter = sub {
	132	my ($data, $tr) = @_;
	133	$tr->fclass('user')->namedlink($data->{id}, $data->{name});
	134	$tr->fclass($_)->replace_content($data->{$_}) for qw/solved attempted contests/;
	135	};
	136	$tree->find('tbody')->find('tr')->iter3($args{us}, $iter);
	137	}
	138
	139	sub process_ct_entry {
	140	my ($tree, %args) = @_;
	141	$_->edit_href (sub {s/contest_id/$args{id}/}) for $tree->find('a');
	142	$tree->fid('editorial')->detach unless $args{finished};
	143	$tree->fid('links')->detach unless $args{started};
	144	my $status = ($args{time} < $args{start} ? 'starts' : 'ends');
	145	$tree->fclass('timer')->attr('data-stop', $status eq 'ends' ? $args{stop} : $args{start});
	146	$tree->content_handler(
	147	start => ftime $args{start},
	148	stop => ftime $args{stop},
	149	status => $status,
	150	description => literal $args{description});
	151	$tree->fid('ctcountdown')->detach if $args{time} >= $args{stop};
	152	}
	153
	154	sub process_ct {
	155	my ($tree, %args) = @_;
	156	my $iter = sub {
	157	my ($data, $tr) = @_;
	158	$data->{$_} = ftime $data->{$_} for qw/start stop/;
	159	$tr->hashmap(class => $data, [qw/name owner/]);
	160	$tr->fclass('name')->namedlink($data->{id}, $data->{name});
	161	$tr->fclass('owner')->namedlink($data->{owner}, $data->{owner_name});
	162	};
	163	$args{$_} ? $tree->fid($_)->find('tbody')->find('tr')->iter3($args{$_}, $iter) : $tree->fid($_)->detach for qw/running pending finished/;
	164	}
	165
	166	sub process_pb_entry {
	167	my ($tree, %args) = @_;
	168	$tree->fid('owner')->edit_href(sub{s/owner_id/$args{owner}/});
	169	$tree->fid('job_log')->edit_href(sub{s/problem_id/$args{id}/});
	170	$tree->fid('solution')->edit_href(sub{s/problem_id/$args{id}/});
	171	$tree->content_handler(
	172	statement => literal $args{statement},
	173	level => ucfirst $args{level},
	174	author => $args{author},
	175	owner => $args{owner_name} \|\| $args{owner});
	176	if ($args{limits}) {
	177	my @limits = (@{$args{limits}}, {format => 'Other', timeout => $args{timeout} });
	178	@limits = map { sprintf '%s (%s)', @{$_}{qw/timeout format/} } @limits;
	179	$tree->look_down(smap => 'timeout')->replace_content(join ', ', @limits);
	180	}
	181	if ($args{contest_stop}) {
	182	$tree->fid('solution')->detach;
	183	$tree->fid('solution_modal')->detach;
	184	$tree->fid('score')->replace_content($args{value});
	185	$tree->fid('countdown')->attr('data-stop' => $args{contest_stop});
	186	} else {
	187	$tree->fid('job_log')->edit_href(sub{$_ .= "&private=$args{private}"}) if $args{private};
	188	$tree->fid('solution')->detach unless $args{solution};
	189	$_->detach for $tree->fclass('rc'); # requires contest
	190	$tree->fid('solution_modal')->fclass('modal-body')->replace_content(literal $args{solution});
	191	}
	192	if ($args{cansubmit}) {
	193	$tree->fid('nosubmit')->detach;
	194	$tree->look_down(name => 'problem')->attr(value => $args{id});
	195	my $contest = $tree->look_down(name => 'contest');
	196	$contest->attr(value => $args{args}{contest}) if $args{args}{contest};
	197	$contest->detach unless $args{args}{contest}
	198	} else {
	199	$tree->fid('nosubmit')->find('a')->edit_href(sub{s/id/$args{id}/});
	200	$tree->fid('submit')->detach
	201	}
	202	}
	203
	204	sub process_sol {
	205	my ($tree, %args) = @_;
	206	$tree->content_handler(solution => literal $args{solution});
	207	}
	208
	209	sub process_pb {
	210	my ($tree, %args) = @_;
	211	my $titer = sub {
	212	my ($data, $tr) = @_;
	213	$tr->set_child_content(class => 'author', $data->{author});
	214	$tr->fclass('name')->namedlink($data->{id}, $data->{name});
	215	$tr->fclass('name')->find('a')->edit_href(sub {$_ .= "?contest=$args{contest}"}) if $args{contest};
	216	$tr->fclass('owner')->namedlink($data->{owner}, $data->{owner_name});
	217	$tr->find('td')->attr(class => $tr->find('td')->attr('class').' warning') if $data->{private} && !$args{contest};
	218	};
	219	my $iter = sub {
	220	my ($data, $div) = @_;
	221	$div->attr(id => $data);
	222	$div->find('h2')->replace_content(ucfirst $data);
	223	$div->find('tbody')->find('tr')->iter3($args{$data}, $titer);
	224	};
	225	$tree->fid('beginner')->iter3([grep {$args{$_}} qw/beginner easy medium hard/], $iter);
	226	$tree->fid('open-alert')->detach unless $args{contest};
	227	}
	228
	229	sub process_log_entry {
	230	my ($tree, %args) = @_;
	231	$tree->fid('problem')->namedlink(@args{qw/problem problem_name/});
	232	$tree->fid('owner')->namedlink(@args{qw/owner owner_name/});
	233	$tree->fid('source')->namedlink("$args{id}.$args{extension}", sprintf '%.2fKB', $args{size}/1024);
	234	if ($args{contest}) {
	235	$tree->fid('contest')->namedlink(@args{qw/contest contest_name/});
	236	$tree->fid('problem')->find('a')->edit_href(sub {$_.="?contest=$args{contest}"});
	237	} else {
	238	$tree->fid('contest')->left->detach;
	239	$tree->fid('contest')->detach;
	240	}
	241
	242	$args{errors} ? $tree->fid('errors')->find('pre')->replace_content($args{errors}) : $tree->fid('errors')->detach;
	243	my $iter = sub {
	244	my ($data, $tr) = @_;
	245	$data->{time} = sprintf '%.4fs', $data->{time};
	246	$tr->defmap(class => $data);
	247	$tr->fclass('result_text')->attr(class => "r$data->{result}")
	248	};
	249	$tree->fclass('result_text')->replace_content($args{result_text});
	250	$tree->fclass('result_text')->attr(class => "r$args{result}");
	251	$args{results} ? $tree->fid('results')->find('tbody')->find('tr')->iter3($args{results}, $iter) : $tree->fid('results')->detach;
	252	$tree->fid('no_results')->detach if $tree->fid('results') \|\| $tree->fid('errors');
	253	}
	254
	255	sub process_log {
	256	my ($tree, %args) = @_;
	257	my $iter = sub {
	258	my ($data, $tr) = @_;
	259	$tr->fclass('id')->namedlink($data->{id});
	260	$tr->fclass('problem')->namedlink($data->{problem}, $data->{problem_name});
	261	$tr->fclass('problem')->find('a')->edit_href(sub{$_ .= "?contest=$args{args}{contest}"}) if $args{args}{contest};
	262	$tr->fclass('contest')->namedlink($data->{contest}, $data->{contest_name}) if $data->{contest};
	263	$tr->fclass('contest')->replace_content('None') unless $data->{contest};
	264	$tr->fclass('date')->replace_content(ftime $data->{date});
	265	$tr->fclass('source')->namedlink("$data->{id}.$data->{extension}", sprintf "%.2fKB %s", $data->{size}/1024, Plack::App::Gruntmaster::FORMAT_EXTENSION()->{$data->{format}});
	266	$tr->fclass('owner')->namedlink($data->{owner}, $data->{owner_name});
	267	$tr->fclass('result_text')->replace_content($data->{result_text});
	268	$tr->fclass('result_text')->attr(class => "r$data->{result}");
	269	$tr->find('td')->attr(class => $tr->find('td')->attr('class').' warning') if $data->{private};
	270	};
	271	$tree->find('table')->find('tbody')->find('tr')->iter3($args{log}, $iter);
	272	$args{next_page} ? $tree->fclass('next')->namedlink($args{next_page}, 'Next') : $tree->fclass('next')->detach;
	273	$args{previous_page} ? $tree->fclass('previous')->namedlink($args{previous_page}, 'Previous') : $tree->fclass('previous')->detach;
	274	for my $cls (qw/next previous/) {
	275	my $elem = $tree->fclass($cls);
	276	next unless $elem;
	277	delete $args{args}{page};
	278	my $str = join '&', map { $_ . '=' . $args{args}{$_} } keys %{$args{args}};
	279	$elem->find('a')->edit_href(sub{s/$/&$str/}) if $str;
	280	}
	281	$tree->fclass('current')->replace_content("Page $args{current_page} of $args{last_page}");
	282
	283	my @detach;
	284	push @detach, $args{args}{$_} ? $tree->fclass($_) : () for qw/problem contest owner/;
	285	$_->detach for @detach;
	286	}
	287
	288	sub process_st {
	289	my ($tree, %args) = @_;
	290	$args{problems} //= [];
	291	my $pbiter = sub {
	292	my ($data, $th) = @_;
	293	$th->attr(class => undef);
	294	$th->namedlink(@$data);
	295	$th->find('a')->edit_href(sub{s/$/?contest=$args{args}{contest}/});
	296	};
	297	$tree->fclass('problem')->iter3($args{problems}, $pbiter);
	298	my $iter = sub {
	299	my ($st, $tr) = @_;
	300	$tr->set_child_content(class => 'rank', $st->{rank});
	301	$tr->set_child_content(class => 'score', $st->{score});
	302	$tr->fclass('user')->namedlink($st->{user}, $st->{user_name});
	303	my $pbscore = $tr->fclass('pbscore');
	304	$pbscore->iter($pbscore => @{$st->{scores}});
	305	};
	306	$tree->find('tbody')->find('tr')->iter3($args{st}, $iter);
	307	}
	308
	309	sub process_ed {
	310	my ($tree, %args) = @_;
	311	$tree->content_handler(editorial => literal $args{editorial});
	312	my $iter = sub {
	313	my ($data, $div) = @_;
	314	$div->set_child_content(class => 'value', $data->{value});
	315	$div->set_child_content(class => 'solution', literal $data->{solution});
	316	$div->fclass('problem')->namedlink($data->{id}, $data->{name});
	317	};
	318	my @pb = map { @{$args{$_} // []} } qw/beginner easy medium hard/;
	319	$tree->fclass('well')->iter3(\@pb, $iter);
	320	}
	321
	322	1;
	323	__END__