<?php
/**
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @since         3.0.0
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */
namespace Cake\View\Helper;

/**
 * Adds string template functionality to any class by providing methods to
 * load and parse string templates.
 */
trait StringTemplateTrait {

/**
 * StringTemplate instance.
 *
 * @var \Cake\View\StringTemplate
 */
	protected $_templater;

/**
 * Get/set templates to use.
 *
 * @param string|null|array $templates null or string allow reading templates. An array
 *   allows templates to be added.
 * @return $this|string|array
 */
	public function templates($templates = null) {
		if ($templates === null || is_string($templates)) {
			return $this->templater()->get($templates);
		}

		$this->templater()->add($templates);
		return $this;
	}

/**
 * Format a template string with $data
 *
 * @param string $name The template name.
 * @param array $data The data to insert.
 * @return string
 */
	public function formatTemplate($name, $data) {
		return $this->templater()->format($name, $data);
	}

/**
 * templater
 *
 * @return \Cake\View\StringTemplate
 */
	public function templater() {
		if (empty($this->_templater)) {
			$class = $this->config('templateClass') ?: 'Cake\View\StringTemplate';
			$this->_templater = new $class();

			$templates = $this->config('templates');
			if ($templates) {
				if (is_string($templates)) {
					$this->_templater->add($this->_defaultConfig['templates']);
					$this->_templater->load($templates);
				} else {
					$this->_templater->add($templates);
				}
			}
		}
		return $this->_templater;
	}

}