<?php

/**
 * Action Helper for loading forms
 *
 * @uses Zend_Controller_Action_Helper_Abstract
 */
class My_Helper_FormLoader extends Zend_Controller_Action_Helper_Abstract
{
	/**
	 * @var Zend_Loader_PluginLoader
	 */
	public $pluginLoader;

	/**
	 * Constructor: initialize plugin loader
	 *
	 * @return void
	 */
	public function __construct()
	{
		$this->pluginLoader = new Zend_Loader_PluginLoader();
	}

	/**
	 * Load a form with the provided options
	 *
	 * @param  string $name
	 * @param  array|Zend_Config $options
	 * @return Zend_Form
	 */
	public function loadForm($name, $options = null)
	{
		$module  = $this->getRequest()->getModuleName();
		$front   = $this->getFrontController();
		$default = $front->getDispatcher()
		->getDefaultModule();
		if (empty($module)) {
			$module = $default;
		}
		$moduleDirectory = $front->getControllerDirectory($module);
		$formsDirectory  = dirname($moduleDirectory) . '/forms';

		$prefix = (ucfirst($module) . '_') . 'Form_';
		$this->pluginLoader->addPrefixPath($prefix, $formsDirectory);

		$name      = ucfirst((string) $name);
		$formClass = $this->pluginLoader->load($name);
		return new $formClass($options);
	}

	/**
	 * Strategy pattern: call helper as broker method
	 *
	 * @param  string $name
	 * @param  array|Zend_Config $options
	 * @return Zend_Form
	 */
	public function direct($name, $options = null)
	{
		return $this->loadForm($name, $options);
	}
}