package Padre::Plugin::HTML;

use warnings;
use strict;

our $VERSION = '0.10';

use base 'Padre::Plugin';
use Padre::Wx ();

sub padre_interfaces {
	'Padre::Plugin'   => 0.43,
	'Padre::Document' => 0.21,
}

sub registered_documents {
	'text/html' => 'Padre::Plugin::HTML::Document',
}

sub menu_plugins_simple {
	my $self = shift;
	return ('HTML' => [
		'Tidy HTML', sub { $self->tidy_html },
		'HTML Lint', sub { $self->html_lint },
		'Validate HTML',  sub { $self->validate_html },
		'Docs'=> [
			'HTML 4.01 Specification', sub { Padre::Wx::launch_browser('http://www.w3.org/TR/html401/'); },
		],
	]);
}

sub validate_html {
	my ( $self ) = @_;
	my $main = $self->main;
	
	my $doc  = $main->current->document;
	my $code = $doc->text_get;
	
	unless ( $code and length($code) ) {
		Wx::MessageBox( 'No Code', 'Error', Wx::wxOK | Wx::wxCENTRE, $main );
	}
	
	require WebService::Validator::HTML::W3C;
	my $v = WebService::Validator::HTML::W3C->new(
		detailed => 1
	);

	if ( $v->validate_markup($code) ) {
        if ( $v->is_valid ) {
			$self->_output( "HTML is valid\n" );
        } else {
			my $error_text = "HTML is not valid\n";
            foreach my $error ( @{$v->errors} ) {
                $error_text .= sprintf("%s at line %d\n", $error->msg, $error->line);
            }
            $self->_output( $error_text );
        }
    } else {
        my $error_text = sprintf("Failed to validate the code: %s\n", $v->validator_error);
        $self->_output( $error_text );
    }
}

sub _output {
	my ( $self, $text ) = @_;
	my $main = $self->main;
	
	$main->show_output(1);
	$main->output->clear;
	$main->output->AppendText($text);
}

sub tidy_html {
	my ( $self ) = @_;
	my $main = $self->main;
	
	my $src = $main->current->text;
	my $doc = $main->current->document;
	return unless $doc;
	my $code = ( $src ) ? $src : $doc->text_get;
	
	return unless ( defined $code and length($code) );
	
	require HTML::Tidy;
	my $tidy = HTML::Tidy->new;

	my $cleaned_code = $tidy->clean( $code );

	my $text;
    for my $message ( $tidy->messages ) {
        $text .= $message->as_string . "\n";
    }
    
    $text = 'OK' unless ( length($text) );
	$self->_output($text);
	
	if ( $src ) {
		my $editor = $main->current->editor;
	    $editor->ReplaceSelection( $cleaned_code );
	} else {
		$doc->text_set( $cleaned_code );
	}
}

sub html_lint {
	my ( $self ) = @_;
	my $main = $self->main;
	
	my $src = $main->current->text;
	my $doc = $main->current->document;
	return unless $doc;
	my $code = ( $src ) ? $src : $doc->text_get;
	
	return unless ( defined $code and length($code) );
	
	require HTML::Lint;
	my $lint = HTML::Lint->new;

	$lint->parse( $code );

	my $text;
	my $error_count = $lint->errors;

	foreach my $error ( $lint->errors ) {
		$text .= $error->as_string . "\n";
	}
    
	$text = 'OK' unless ( length($text) );
	$self->_output($text);
}

1;
__END__

=head1 NAME

Padre::Plugin::HTML - L<Padre> and HTML

=head1 Validate HTML

use L<WebService::Validator::HTML::W3C> to validate the HTML

=head1 Tidy HTML

use L<HTML::Tidy> to tidy HTML

=head1 HTML Lint

use L<HTML::Lint> to ?????

=head1 AUTHOR

Fayland Lam, C<< <fayland at gmail.com> >>

=head1 COPYRIGHT & LICENSE

Copyright 2008 Fayland Lam, all rights reserved.

This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.

=cut