<?php
if (!defined('_CAN_LOAD_FILES_'))
	exit;

require_once dirname(__FILE__). '/classes/seourl.php';

class SeoUrl extends Module {

	public function __construct() {
		$this->name = 'seourl';
		$this->tab = 'front_office_features';
		$this->version = '1.0';
		$this->author = 'Antadis';
		$this->need_instance = 0;

		parent::__construct();

		$this->displayName = $this->l('SEO Url');
		$this->description = $this->l('Manage Seo Url');
		$this->secure_key = Tools::encrypt($this->name);

		$this->confirmUninstall = $this->l('Are you sure ?');
	}

	public function install() {
	if (Shop::isFeatureActive())
		Shop::setContext(Shop::CONTEXT_ALL);
		
		if (!parent::install()  || !$this->registerHook('actionProductDelete') 
								|| !$this->registerHook('seoUrlCmsCategory') 
								|| !$this->registerHook('seoUrlCmsPost') 
								|| !$this->registerHook('seoUrlCmsEdito') 
								|| !$this->registerHook('actionObjectCmsUpdateAfter') 
								|| !$this->registerHook('actionObjectCmsDeleteAfter') 
								|| !$this->registerHook('displayHeader') 
								|| !$this->registerHook('actionCategoryUpdate')
								|| !$this->registerHook('addFeatureProduct')
								|| !$this->registerHook('actionCategoryAdd')
								|| !$this->registerHook('actionProductSave') )
			return false;

		$res = Db::getInstance()->execute('
			CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'seourl` (
				`id_seourl` int(11) NOT NULL AUTO_INCREMENT,
				`type` tinyint(10) NOT NULL,
				`id_element` int(11) NOT NULL,				
			PRIMARY KEY (`id_seourl`))
			ENGINE='._MYSQL_ENGINE_.' DEFAULT CHARSET=utf8');

		if (!$res)
			return false;

		$res = Db::getInstance()->execute('
			CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'seourl_lang` (
				`id_seourl` int(11) NOT NULL,
				`id_lang` int(11) NOT NULL,
				`id_shop` int(11) NOT NULL,
				`link_rewrite` VARCHAR(255) NOT NULL,
				`redirect` text,
				`canonical` text,
			PRIMARY KEY (`id_seourl`, `id_lang`))
			ENGINE='._MYSQL_ENGINE_.' DEFAULT CHARSET=utf8');
		
		if (!$res)
			return false;

		$res = Db::getInstance()->execute('
			CREATE TABLE IF NOT EXISTS `'._DB_PREFIX_.'seourl_shop` (
				`id_seourl` int(11) NOT NULL,
				`id_shop` int(11) NOT NULL,
			PRIMARY KEY (`id_seourl`, `id_shop`))
			ENGINE='._MYSQL_ENGINE_.' DEFAULT CHARSET=utf8');

		return $res;
	}

	public function uninstall(){
	$res = Db::getInstance()->execute('DROP TABLE IF EXISTS `'._DB_PREFIX_.'seourl_lang`');
	$res = Db::getInstance()->execute('DROP TABLE IF EXISTS `'._DB_PREFIX_.'seourl_shop`');
	$res &= Db::getInstance()->execute('DROP TABLE IF EXISTS `'._DB_PREFIX_.'seourl`');
		if (!$res || !parent::uninstall())
			return false;
		return true;
	}

	/**
	* Hook ajout/modification url catégorie de CMS
	*/
	public function hookseoUrlCmsCategory($params) {
		$id_shop = Context::getContext()->shop->id;
		$seo_url = ManageSeoUrl::getByType($params['object']->id, ManageSeoUrl::TYPE_CATEGORY_CMS, FALSE, NULL, $id_shop);
		$urls = array();

		//Check parent
		if ($params['object']->id_parent) {
			$seo_url_parent = ManageSeoUrl::getByType($params['object']->id_parent, ManageSeoUrl::TYPE_CATEGORY_CMS, FALSE, NULL, $id_shop);
			foreach (Language::getLanguages() as $language) {
				$id_lang = (int)$language['id_lang'];
				$urls[$id_lang] = $seo_url_parent->link_rewrite[$id_lang].$params['object']->id.'-'.$params['object']->slug[$id_lang].'/';				
			}
		} else {
			foreach (Language::getLanguages() as $language) {
				$id_lang = (int)$language['id_lang'];
				$urls[$id_lang] = $params['object']->id.'-'.$params['object']->slug[$id_lang].'/';				
			}
		}

		if (!Validate::isLoadedObject($seo_url)) {
			ManageSeoUrl::createUrl(ManageSeoUrl::TYPE_CATEGORY_CMS, $params['object']->id, $urls);
		} else {
			$seo_url->link_rewrite = $urls;
			$seo_url->save();
		}
	}

	/**
	* Hook ajout/modification url post de CMS
	*/
	public function hookseoUrlCmsPost($params) {
		$id_shop = Context::getContext()->shop->id;
		$seo_url = ManageSeoUrl::getByType($params['object']->id, ManageSeoUrl::TYPE_POST_CMS, FALSE, NULL, $id_shop);
		$urls = array();

		$url_category = ManageSeoUrl::getByType($params['object']->id_category, ManageSeoUrl::TYPE_CATEGORY_CMS, FALSE, NULL, $id_shop);
		foreach (Language::getLanguages() as $language) {
			$id_lang = (int)$language['id_lang'];
			$urls[$id_lang] = $url_category->link_rewrite[$id_lang].$params['object']->id.'-'.$params['object']->slug[$id_lang].'.php';
		}

		if (!$seo_url instanceOf ManageSeoUrl) {
			ManageSeoUrl::createUrl(ManageSeoUrl::TYPE_POST_CMS, $params['object']->id, $urls);
		} else {
			$seo_url->link_rewrite = $urls;
			$seo_url->save();
		}
	}

	public function hookseoUrlCmsEdito($params) {
		$id_shop = Context::getContext()->shop->id;
		$seo_url = ManageSeoUrl::getByType($params['object']->id, ManageSeoUrl::TYPE_POST_EDITO, FALSE, NULL, $id_shop);
		
		$urls = array();
		$canonicals = array();

		foreach (Language::getLanguages() as $language) {
			$id_lang = (int)$language['id_lang'];
			$urls[$id_lang] = ManageSeoUrl::PREFIX_EDITO.$params['object']->id.'-'.$params['object']->slug[$id_lang].'.php';
			$canonicals[$id_lang] = $params['canonical'];
		}

		if (!$seo_url instanceOf ManageSeoUrl) {
			ManageSeoUrl::createUrl(ManageSeoUrl::TYPE_POST_EDITO, $params['object']->id, $urls, $params['canonical']);
		} else {
			$seo_url->link_rewrite = $urls;
			$seo_url->canonical = $canonicals;
			$seo_url->save();
		}
	}

	public function hookdisplayHeader()
	{	
		if (Tools::getValue('seo_canonical')) {
			$url = Tools::getValue('seo_canonical');
			return "<link rel='canonical' href='$url'/>";
		}
	}

}