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<?php
/*
 * Spring Signage Ltd - http://www.springsignage.com
 * Copyright (C) 2015 Spring Signage Ltd
 * (TransNode.php)
 */

namespace Xibo\Twig;

class TransNode extends \Twig_Node
{
    public function __construct(\Twig_Node $body, \Twig_Node $plural = null, \Twig_Node_Expression $count = null, \Twig_Node $notes = null, $lineno, $tag = null)
    {
        parent::__construct(array('count' => $count, 'body' => $body, 'plural' => $plural, 'notes' => $notes), array(), $lineno, $tag);
    }

/**
     * Compiles the node to PHP.
     *
     * @param \Twig_Compiler $compiler A Twig_Compiler instance
     */
    public function compile(\Twig_Compiler $compiler)
    {
        $compiler->addDebugInfo($this);

list($msg, $vars) = $this->compileString($this->getNode('body'));

if (null !== $this->getNode('plural')) {
            list($msg1, $vars1) = $this->compileString($this->getNode('plural'));

$vars = array_merge($vars, $vars1);
        }

$function = null === $this->getNode('plural') ? '__' : 'n__';

if (null !== $notes = $this->getNode('notes')) {
            $message = trim($notes->getAttribute('data'));

// line breaks are not allowed cause we want a single line comment
            $message = str_replace(array("\n", "\r"), ' ', $message);
            $compiler->write("// notes: {$message}\n");
        }

if ($vars) {
            // Add a hint for xgettext so that poedit goes not treat the variable substitution as PHP format
            // https://github.com/xibosignage/xibo/issues/1284
            $compiler
                ->write('/* xgettext:no-php-format */')
                ->write('echo strtr(' . $function . '(')
                ->subcompile($msg);

if (null !== $this->getNode('plural')) {
                $compiler
                    ->raw(', ')
                    ->subcompile($msg1)
                    ->raw(', abs(')
                    ->subcompile($this->getNode('count'))
                    ->raw(')');
            }

$compiler->raw('), array(');

foreach ($vars as $var) {
                if ('count' === $var->getAttribute('name')) {
                    $compiler
                        ->string('%count%')
                        ->raw(' => abs(')
                        ->subcompile($this->getNode('count'))
                        ->raw('), ');
                } else {
                    $compiler
                        ->string('%' . $var->getAttribute('name') . '%')
                        ->raw(' => ')
                        ->subcompile($var)
                        ->raw(', ');
                }
            }

$compiler->raw("));\n");
        } else {
            $compiler
                ->write('echo ' . $function . '(')
                ->subcompile($msg);

$compiler->raw(");\n");
        }
    }

/**
     * @param \Twig_Node $body A Twig_Node instance
     *
     * @return array
     */
    protected function compileString(\Twig_Node $body)
    {
        if ($body instanceof \Twig_Node_Expression_Name || $body instanceof \Twig_Node_Expression_Constant || $body instanceof \Twig_Node_Expression_TempName) {
            return array($body, array());
        }

$vars = array();
        if (count($body)) {
            $msg = '';

foreach ($body as $node) {
                if (get_class($node) === 'Twig_Node' && $node->getNode(0) instanceof \Twig_Node_SetTemp) {
                    $node = $node->getNode(1);
                }

if ($node instanceof \Twig_Node_Print) {
                    $n = $node->getNode('expr');
                    while ($n instanceof \Twig_Node_Expression_Filter) {
                        $n = $n->getNode('node');
                    }
                    $msg .= sprintf('%%%s%%', $n->getAttribute('name'));
                    $vars[] = new \Twig_Node_Expression_Name($n->getAttribute('name'), $n->getLine());
                } else {
                    $msg .= $node->getAttribute('data');
                }
            }
        } else {
            $msg = $body->getAttribute('data');
        }

return array(new \Twig_Node(array(new \Twig_Node_Expression_Constant(trim($msg), $body->getLine()))), $vars);
    }
}