<?php

if (!defined('_CAN_LOAD_FILES_'))
	exit;

class FeaturedCategories extends Module
{
	const CATEGORY_PARENT = 22;

	public function __construct()
	{
		$this->name = 'featuredcategories';
		if (version_compare(_PS_VERSION_, '1.4.0.0') >= 0)
			$this->tab = 'front_office_features';
		else
			$this->tab = 'Blocks';
		$this->version = '1.0';
        $this->author = 'Antadis';
		$this->bootstrap = true;

		parent::__construct();

		$this->displayName = $this->l('Bloc liste des catégories');
		$this->description = $this->l('Affiche une liste des catégories/sous-catégories');
		$this->ps_versions_compliancy = array('min' => '1.6', 'max' => _PS_VERSION_);
	}

	public function install()
	{
		return parent::install() && $this->registerHook('displaySubCategories');
	}

	public function uninstall()
	{
		// Delete configuration
		return parent::uninstall();
	}

	public function hookHeader($params)
	{

	}

	public function getBlock($id_category)
	{
		$categories = self::getCategories($id_category);
		
		return $categories;
		
	}

	static function getCategories($id_parent, $limit = null) 
	{
		$context = Context::getContext();

		$query = '
			SELECT DISTINCT c.`id_category`, cl.`name`, c.`home`, cl.`description_univers`, cl.`liste_icons_univers`
			FROM `'._DB_PREFIX_.'category` c
			LEFT JOIN `'._DB_PREFIX_.'category_lang` cl ON cl.`id_category` = c.`id_category`
			LEFT JOIN `'._DB_PREFIX_.'category_shop` cs ON cs.`id_category` = c.`id_category`
			WHERE c.`id_parent` = '.$id_parent.'
			AND cl.`id_lang` = '.$context->language->id.'
			AND cs.`id_shop` = '.$context->shop->id.'
			AND cl.`id_shop` = '.$context->shop->id.'
			ORDER BY cs.`position` ASC
		';

		if ($limit) {
			$query .= 'LIMIT 0, '.$limit;
		}

		$categories = Db::getInstance()->executeS($query);
		
		if (!$categories) {
			return false;
		}

		foreach ($categories as $key => $category) {
			if($categories[$key]['home'] == 1) {
				$categories[$key]['hasImg'] = file_exists(_PS_CAT_IMG_DIR_ . 'home/' . $category['id_category'] . '.jpg');
				$categories[$key]['subcategories'] = Category::getChildren($category['id_category'], $context->language->id);
			} else {
				unset($categories[$key]);
			}
		}

		return $categories;
	}

	public function hookDisplaySubCategories($params)
	{
		$id_category = Tools::getValue('id_category', FeaturedCategories::CATEGORY_PARENT);
		if (!$this->isCached('featuredcategories.tpl', $this->getCacheId())) {
			$blocks = $this->getBlock($id_category);
			$this->context->smarty->assign(array(
				'blocks' => $blocks,
			));
		}
		return $this->display(__FILE__, 'featuredcategories.tpl', $this->getCacheId());
	}

	public function hookActionCategoryAdd($params)
	{
		$this->_clearCache('featuredcategories.tpl');
	}

	public function hookActionCategoryDelete($params)
	{
		$this->_clearCache('featuredcategories.tpl');
	}

	public function hookActionCategoryUpdate($params)
	{
		$this->_clearCache('featuredcategories.tpl');
	}

}