<?php
include_once(_PS_MODULE_DIR_. 'seourl/classes/seourl.php');

class Dispatcher extends DispatcherCore {
	
	public function dispatch()
	{
		$controller_class = '';

		// Get current controller
		$this->getController();
		if (!$this->controller)
			$this->controller = $this->useDefaultController();
		// Dispatch with right front controller
		switch ($this->front_controller)
		{
			// Dispatch front office controller
			case self::FC_FRONT :
				$controllers = Dispatcher::getControllers(array(_PS_FRONT_CONTROLLER_DIR_, _PS_OVERRIDE_DIR_.'controllers/front/'));
				$controllers['index'] = 'IndexController';
				if (isset($controllers['auth']))
					$controllers['authentication'] = $controllers['auth'];
				if (isset($controllers['compare']))
					$controllers['productscomparison'] = $controllers['compare'];
				if (isset($controllers['contact']))
					$controllers['contactform'] = $controllers['contact'];


				// SEOURL
				if ($this->controller == 'pagenotfound') { 
					$request = substr($this->request_uri, 1, strlen($this->request_uri));
					$request = strtok($request,'?');

					$context = Context::getContext();
					$current_uri = ManageSeoUrl::getUrl($request, $context->language->id, $context->shop->id);

					if(!empty($current_uri['redirect']) 
						&& $current_uri != 'notfound') {
						header("Status: 301 Moved Permanently", false, 301);
						header("Location:" . $current_uri['redirect']);
						exit();
					}
					if(!empty($current_uri['canonical'])){
						$_POST['seo_canonical'] = $current_uri['canonical'];
					}

					if(isset($current_uri['type']))
					{
						if ($current_uri['type'] == ManageSeoUrl::TYPE_PRODUCT) {
							$this->controller = 'product';
							$_POST['id_product'] = $current_uri['id_element'];
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_CATEGORY) {
							$this->controller = 'category';
							$_POST['id_category'] = $current_uri['id_element'];
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_CATEGORY_CMS) {
							$this->controller = 'categorycms';
							$_POST['id_category_cms'] = $current_uri['id_element'];
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_POST_CMS) {
							$this->controller = 'postcms';
							$_POST['id_post_cms'] = $current_uri['id_element'];
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_POST_EDITO) {
							$this->controller = 'postedito';
							$_POST['id_post_edito'] = $current_uri['id_element'];
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_HOME_EDITO) {
							$this->controller = 'homeedito';
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_STORE_HOME) {
							$this->controller = 'homestore';
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_VIDEO) {
							$this->controller = 'videos';
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_CMS) {
							$this->controller = 'cms';
							$_POST['id_cms'] = $current_uri['id_element'];
						}
						elseif ($current_uri['type'] == ManageSeoUrl::TYPE_301) {
							header("Status: 301 Moved Permanently", false, 301);
							header("Location:" . $current_uri['redirect']);
							exit();
						}
					} else {
						// redirect 301 article
						$res = substr($request, strlen($request) - 4);
						if ($res == ManageSeoUrl::SUFFIX_PHP) {
							$segments = explode('/', $request);
							if (sizeof($segments) >= 2) {
								$last = $segments[(sizeof($segments)-1)];
								$data_url = explode('-', $last);
								if (Validate::isInt($data_url[0])) {
									$url = ManageSeoUrl::getByType($data_url[0], ManageSeoUrl::TYPE_POST_CMS, false, Context::getContext()->language->id);
									$redirect = "http://".Context::getContext()->shop->domain.__PS_BASE_URI__;
									if (Validate::isLoadedObject($url)) {
										header("Status: 301 Moved Permanently", false, 301);
										header("Location:" .  $redirect.$url->link_rewrite);
										exit();
									}
								}
							}
						}
					}
				}

				if (!isset($controllers[strtolower($this->controller)]))
					$this->controller = $this->controller_not_found;
				$controller_class = $controllers[strtolower($this->controller)];
				$params_hook_action_dispatcher = array('controller_type' => self::FC_FRONT, 'controller_class' => $controller_class, 'is_module' => 0);
			break;

			// Dispatch module controller for front office
			case self::FC_MODULE :
				$module_name = Validate::isModuleName(Tools::getValue('module')) ? Tools::getValue('module') : '';
				$module = Module::getInstanceByName($module_name);
				$controller_class = 'PageNotFoundController';
				if (Validate::isLoadedObject($module) && $module->active)
				{
					$controllers = Dispatcher::getControllers(_PS_MODULE_DIR_.$module_name.'/controllers/front/');
					if (isset($controllers[strtolower($this->controller)]))
					{
						include_once(_PS_MODULE_DIR_.$module_name.'/controllers/front/'.$this->controller.'.php');
						$controller_class = $module_name.$this->controller.'ModuleFrontController';
					}
				}
				$params_hook_action_dispatcher = array('controller_type' => self::FC_FRONT, 'controller_class' => $controller_class, 'is_module' => 1);
			break;

			// Dispatch back office controller + module back office controller
			case self::FC_ADMIN :
				if ($this->use_default_controller && !Tools::getValue('token') && Validate::isLoadedObject(Context::getContext()->employee) && Context::getContext()->employee->isLoggedBack())
					Tools::redirectAdmin('index.php?controller='.$this->controller.'&token='.Tools::getAdminTokenLite($this->controller));

				$tab = Tab::getInstanceFromClassName($this->controller, Configuration::get('PS_LANG_DEFAULT'));
				$retrocompatibility_admin_tab = null;

				if ($tab->module)
				{
					if (file_exists(_PS_MODULE_DIR_.$tab->module.'/'.$tab->class_name.'.php'))
						$retrocompatibility_admin_tab = _PS_MODULE_DIR_.$tab->module.'/'.$tab->class_name.'.php';
					else
					{
						$controllers = Dispatcher::getControllers(_PS_MODULE_DIR_.$tab->module.'/controllers/admin/');
						if (!isset($controllers[strtolower($this->controller)]))
						{
							$this->controller = $this->controller_not_found;
							$controller_class = 'AdminNotFoundController';
						}
						else
						{
							// Controllers in modules can be named AdminXXX.php or AdminXXXController.php
							include_once(_PS_MODULE_DIR_.$tab->module.'/controllers/admin/'.$controllers[strtolower($this->controller)].'.php');
							$controller_class = $controllers[strtolower($this->controller)].(strpos($controllers[strtolower($this->controller)], 'Controller') ? '' : 'Controller');
						}
					}
					$params_hook_action_dispatcher = array('controller_type' => self::FC_ADMIN, 'controller_class' => $controller_class, 'is_module' => 1);
				}
				else
				{
					$controllers = Dispatcher::getControllers(array(_PS_ADMIN_DIR_.'/tabs/', _PS_ADMIN_CONTROLLER_DIR_, _PS_OVERRIDE_DIR_.'controllers/admin/'));
					if (!isset($controllers[strtolower($this->controller)]))
					{
						// If this is a parent tab, load the first child
						if (Validate::isLoadedObject($tab) && $tab->id_parent == 0 && ($tabs = Tab::getTabs(Context::getContext()->language->id, $tab->id)) && isset($tabs[0]))
							Tools::redirectAdmin(Context::getContext()->link->getAdminLink($tabs[0]['class_name']));
						$this->controller = $this->controller_not_found;
					}

					$controller_class = $controllers[strtolower($this->controller)];
					$params_hook_action_dispatcher = array('controller_type' => self::FC_ADMIN, 'controller_class' => $controller_class, 'is_module' => 0);

					if (file_exists(_PS_ADMIN_DIR_.'/tabs/'.$controller_class.'.php'))
						$retrocompatibility_admin_tab = _PS_ADMIN_DIR_.'/tabs/'.$controller_class.'.php';
				}

				// @retrocompatibility with admin/tabs/ old system
				if ($retrocompatibility_admin_tab)
				{
					include_once($retrocompatibility_admin_tab);
					include_once(_PS_ADMIN_DIR_.'/functions.php');
					runAdminTab($this->controller, !empty($_REQUEST['ajaxMode']));
					return;
				}
			break;

			default :
				throw new PrestaShopException('Bad front controller chosen');
		}

		// Instantiate controller
		try
		{
			// Loading controller
			$controller = Controller::getController($controller_class);

			// Execute hook dispatcher
			if (isset($params_hook_action_dispatcher))
				Hook::exec('actionDispatcher', $params_hook_action_dispatcher);

			// Running controller
			$controller->run();
		}
		catch (PrestaShopException $e)
		{
			$e->displayMessage();
		}
	}


}