<?php

/*
 * © 2016 IRSTEA
 * Guillaume Perréal <guillaume.perreal@irstea.fr>
 * Tous droits réservés.
 */

namespace Irstea\PlantUmlBundle\Model\Namespace_\Php;

use Irstea\PlantUmlBundle\Model\ArrowInterface;
use Irstea\PlantUmlBundle\Model\NamespaceInterface;
use Irstea\PlantUmlBundle\Writer\WriterInterface;

/**
 * Description of Namespace
 *
 * @author Guillaume Perréal <guillaume.perreal@irstea.fr>
 */
class Namespace_ extends AbstractHierachicalNamespace
{
    /**
     * @var AbstractNamespace
     */
    private $parent;

    /**
     * @var string
     */
    private $name;

    public function __construct(AbstractHierachicalNamespace $parent, $name)
    {
        $this->parent = $parent;
        $this->name = $name;
    }

    /**
     * @param ArrowInterface $arrow
     * @return self
     */
    public function addArrow(ArrowInterface $arrow)
    {
        $this->parent->addArrow($arrow);
        return $this;
    }

    /**
     * @return string
     */
    protected function getNamespacePrefix()
    {
        return $this->parent->getNamespacePrefix() . $this->name . '\\';
    }

        /**
     * @param resource WriterInterface $writer
     * @return self
     */
    public function outputTo(WriterInterface $writer)
    {
        if ($this->isEmpty()) {
            return;
        }

        $writer
            ->printf("namespace %s {\n", $this->name)
            ->indent();
        $this
            ->outputNodesTo($writer)
            ->outputChildrenTo($writer);
        $writer
            ->dedent()
            ->write("}\n");

        return $this;
    }
}