package Padre::Plugin::LaTeX;
BEGIN {
  $Padre::Plugin::LaTeX::VERSION = '0.08';
}

# ABSTRACT: LaTeX Support for Padre

use warnings;
use strict;

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

sub plugin_name {
	Wx::gettext('LaTeX');
}

sub padre_interfaces {
	'Padre::Plugin' => 0.47, 'Padre::Document' => 0.47,;
}

sub registered_documents {
	'application/x-latex'  => 'Padre::Document::LaTeX',
	'application/x-bibtex' => 'Padre::Document::BibTeX',;
}

sub menu_plugins_simple {
	my $self = shift;
	return $self->plugin_name => [
		Wx::gettext('About')             => sub { $self->show_about },
		Wx::gettext('Create/Update PDF') => sub { $self->create_pdf },
		Wx::gettext('View PDF')          => sub { $self->view_pdf },
		Wx::gettext('Run BibTeX')        => sub { $self->run_bibtex },

		# 'Another Menu Entry' => sub { $self->about },
		# 'A Sub-Menu...' => [
		#     'Sub-Menu Entry' => sub { $self->about },
		# ],
	];
}

#####################################################################
# Custom Methods

sub show_about {
	my $self = shift;

	# Generate the About dialog
	my $about = Wx::AboutDialogInfo->new;
	$about->SetName(Wx::gettext('LaTeX Plug-in'));
	my $authors     = 'Zeno Gantner, Ahmad M. Zawawi';
	my $description = Wx::gettext( <<'END' );
LaTeX support for Padre

For syntax highlighting of BibTeX files install the Kate plugin: Padre::Plugin::Kate

Copyright 2010 %s
This plug-in is free software; you can redistribute it and/or modify it under the same terms as Padre.
END
	$about->SetDescription( sprintf( $description, $authors ) );

	# Show the About dialog
	Wx::AboutBox($about);

	return;
}

sub create_pdf {
	my $self = shift;

	my $pdflatex = 'pdflatex -interaction nonstopmode -file-line-error';

	my $main     = $self->main;
	my $doc      = $main->current->document;
	my $tex_dir  = $doc->dirname;
	my $tex_file = $doc->get_title;

	if ( !$doc->isa('Padre::Document::LaTeX') ) {
		$main->message( Wx::gettext('Creating PDF files is only supported for LaTeX documents.') );
		return;
	}

	# TODO autosave or ask or use temporary file

	chdir $tex_dir;
	my $output_text = `$pdflatex $tex_file`;
	$self->_output($output_text);

	return;
}

sub run_bibtex {
	my $self = shift;

	my $bibtex = 'bibtex';

	my $main = $self->main;
	my $doc  = $main->current->document;

	my $tex_dir  = $doc->dirname;
	my $aux_file = $doc->filename;
	$aux_file =~ s/\.tex/.aux/;

	if ( !$doc->isa('Padre::Document::LaTeX') ) {
		$main->message( Wx::gettext('Running BibTeX is only supported for LaTeX documents.') );
		return;
	}

	# TODO autosave (or ask)

	chdir $tex_dir;
	my $output_text = `$bibtex $aux_file`;
	$self->_output($output_text);

	return;
}

sub view_pdf {
	my $self = shift;

	my $main = $self->main;
	my $doc  = $main->current->document;

	if ( !$doc->isa('Padre::Document::LaTeX') ) {
		$main->message( Wx::gettext('Viewing PDF files is only supported for LaTeX documents.') );
		return;
	}

	# TODO find PDF viewer from system settings
	my $pdf_viewer = 'evince';

	my $pdf_file = $doc->filename;
	$pdf_file =~ s/\.tex$/.pdf/;

	if ( !-f $pdf_file ) {

	}

	system "$pdf_viewer $pdf_file &";

	# TODO check for errors

	return;
}


sub editor_enable {
	my $self     = shift;
	my $editor   = shift;
	my $document = shift;

	if ( $document->isa('Padre::Document::LaTeX') ) {

		# TODO
	}

	return 1;
}

sub _output {
	my ( $self, $text ) = @_;
	my $main = $self->main;

	$main->show_output(1);
	$main->output->clear;
	$main->output->AppendText($text);
}


1;


=pod

=head1 NAME

Padre::Plugin::LaTeX - LaTeX Support for Padre

=head1 VERSION

version 0.08

=head1 DESCRIPTION

LaTeX support for Padre, the Perl Application Development and Refactoring
Environment.

Syntax highlighting for LaTeX is supported by Padre out of the box.
This plug-in adds some more features to deal with LaTeX files.
If you also want syntax highlighting for BibTeX files, try the Kate
plugin.

=head1 AUTHORS

=over 4

=item *

Zeno Gantner <zenog@cpan.org>

=item *

Ahmad M. Zawawi <ahmad.zawawi@gmail.com>

=back

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2010 by Zeno Gantner, Ahmad M. Zawawi.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut


__END__