<?php
/*
* 2007-2017 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2017 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

/**
 * @property Category $object
 */
class AdminCategoriesControllerCore extends AdminController
{
    /**
     *  @var object Category() instance for navigation
     */
    protected $_category = null;
    protected $position_identifier = 'id_category_to_move';

    /** @var bool does the product have to be removed during the delete process */
    public $remove_products = true;

    /** @var bool does the product have to be disable during the delete process */
    public $disable_products = false;

    private $original_filter = '';

    public function __construct()
    {
        $this->bootstrap = true;
        $this->table = 'category';
        $this->className = 'Category';
        $this->lang = true;
        $this->deleted = false;
        $this->explicitSelect = true;
        $this->_defaultOrderBy = 'position';
        $this->allow_export = true;

        $this->context = Context::getContext();

        $this->fieldImageSettings = array(
            'name' => 'image',
            'dir' => 'c'
        );

        $this->fields_list = array(
            'id_category' => array(
                'title' => $this->l('ID'),
                'align' => 'center',
                'class' => 'fixed-width-xs'
            ),
            'name' => array(
                'title' => $this->l('Name')
            ),
            'description' => array(
                'title' => $this->l('Description'),
                'callback' => 'getDescriptionClean',
                'orderby' => false
            ),
            'position' => array(
                'title' => $this->l('Position'),
                'filter_key' => 'sa!position',
                'position' => 'position',
                'align' => 'center'
            ),
            'active' => array(
                'title' => $this->l('Displayed'),
                'active' => 'status',
                'type' => 'bool',
                'class' => 'fixed-width-xs',
                'align' => 'center',
                'ajax' => true,
                'orderby' => false
            )
        );

        $this->bulk_actions = array(
            'delete' => array(
                'text' => $this->l('Delete selected'),
                'icon' => 'icon-trash',
                'confirm' => $this->l('Delete selected items?')
            )
        );
        $this->specificConfirmDelete = false;

        parent::__construct();
    }

    public function init()
    {
        parent::init();

        // context->shop is set in the init() function, so we move the _category instanciation after that
        if (($id_category = Tools::getvalue('id_category')) && $this->action != 'select_delete') {
            $this->_category = new Category($id_category);
        } else {
            if (Shop::getContext() == Shop::CONTEXT_SHOP) {
                $this->_category = new Category($this->context->shop->id_category);
            } elseif (count(Category::getCategoriesWithoutParent()) > 1 && Configuration::get('PS_MULTISHOP_FEATURE_ACTIVE') && count(Shop::getShops(true, null, true)) != 1) {
                $this->_category = Category::getTopCategory();
            } else {
                $this->_category = new Category(Configuration::get('PS_HOME_CATEGORY'));
            }
        }

        $count_categories_without_parent = count(Category::getCategoriesWithoutParent());

        if (Tools::isSubmit('id_category')) {
            $id_parent = $this->_category->id;
        } elseif (!Shop::isFeatureActive() && $count_categories_without_parent > 1) {
            $id_parent = (int)Configuration::get('PS_ROOT_CATEGORY');
        } elseif (Shop::isFeatureActive() && $count_categories_without_parent == 1) {
            $id_parent = (int)Configuration::get('PS_HOME_CATEGORY');
        } elseif (Shop::isFeatureActive() && $count_categories_without_parent > 1 && Shop::getContext() != Shop::CONTEXT_SHOP) {
            if (Configuration::get('PS_MULTISHOP_FEATURE_ACTIVE') && count(Shop::getShops(true, null, true)) == 1) {
                $id_parent = $this->context->shop->id_category;
            } else {
                $id_parent = (int)Configuration::get('PS_ROOT_CATEGORY');
            }
        } else {
            $id_parent = $this->context->shop->id_category;
        }
        $this->_select = 'sa.position position';
        $this->original_filter = $this->_filter .= ' AND `id_parent` = '.(int)$id_parent.' ';
        $this->_use_found_rows = false;

        if (Shop::getContext() == Shop::CONTEXT_SHOP) {
            $this->_join .= ' LEFT JOIN `'._DB_PREFIX_.'category_shop` sa ON (a.`id_category` = sa.`id_category` AND sa.id_shop = '.(int)$this->context->shop->id.') ';
        } else {
            $this->_join .= ' LEFT JOIN `'._DB_PREFIX_.'category_shop` sa ON (a.`id_category` = sa.`id_category` AND sa.id_shop = a.id_shop_default) ';
        }


        // we add restriction for shop
        if (Shop::getContext() == Shop::CONTEXT_SHOP && Shop::isFeatureActive()) {
            $this->_where = ' AND sa.`id_shop` = '.(int)Context::getContext()->shop->id;
        }

        // if we are not in a shop context, we remove the position column
        if (Shop::isFeatureActive() && Shop::getContext() != Shop::CONTEXT_SHOP) {
            unset($this->fields_list['position']);
        }
        // shop restriction : if category is not available for current shop, we redirect to the list from default category
        if (Validate::isLoadedObject($this->_category) && !$this->_category->isAssociatedToShop() && Shop::getContext() == Shop::CONTEXT_SHOP) {
            $this->redirect_after = self::$currentIndex.'&id_category='.(int)$this->context->shop->getCategory().'&token='.$this->token;
            $this->redirect();
        }
    }

    public function initPageHeaderToolbar()
    {
        parent::initPageHeaderToolbar();

        if ($this->display != 'edit' && $this->display != 'add') {
            if (Configuration::get('PS_MULTISHOP_FEATURE_ACTIVE')) {
                $this->page_header_toolbar_btn['new-url'] = array(
                    'href' => self::$currentIndex.'&add'.$this->table.'root&token='.$this->token,
                    'desc' => $this->l('Add new root category', null, null, false)
                );
            }

            $id_category = (Tools::isSubmit('id_category')) ? '&id_parent='.(int)Tools::getValue('id_category') : '';
            $this->page_header_toolbar_btn['new_category'] = array(
                'href' => self::$currentIndex.'&addcategory&token='.$this->token.$id_category,
                'desc' => $this->l('Add new category', null, null, false),
                'icon' => 'process-icon-new'
            );
        }
    }

    public function initContent()
    {
        if ($this->action == 'select_delete') {
            $this->context->smarty->assign(array(
                'delete_form' => true,
                'url_delete' => htmlentities($_SERVER['REQUEST_URI']),
                'boxes' => $this->boxes,
            ));
        }

        parent::initContent();
    }

    public function setMedia()
    {
        parent::setMedia();
        $this->addJqueryUi('ui.widget');
        $this->addJqueryPlugin('tagify');
    }

    public function renderList()
    {
        if (isset($this->_filter) && trim($this->_filter) == '') {
            $this->_filter = $this->original_filter;
        }

        $this->addRowAction('view');
        $this->addRowAction('add');
        $this->addRowAction('edit');
        $this->addRowAction('delete');


        $count_categories_without_parent = count(Category::getCategoriesWithoutParent());
        $categories_tree = $this->_category->getParentsCategories();

        if (empty($categories_tree)
            && ($this->_category->id != (int)Configuration::get('PS_ROOT_CATEGORY') || Tools::isSubmit('id_category'))
            && (Shop::getContext() == Shop::CONTEXT_SHOP && !Shop::isFeatureActive() && $count_categories_without_parent > 1)) {
            $categories_tree = array(array('name' => $this->_category->name[$this->context->language->id]));
        }


        $categories_tree = array_reverse($categories_tree);

        $this->tpl_list_vars['categories_tree'] = $categories_tree;
        $this->tpl_list_vars['categories_tree_current_id'] = $this->_category->id;

        if (Tools::isSubmit('submitBulkdelete'.$this->table) || Tools::isSubmit('delete'.$this->table)) {
            $category = new Category(Tools::getValue('id_category'));
            if ($category->is_root_category) {
                $this->tpl_list_vars['need_delete_mode'] = false;
            } else {
                $this->tpl_list_vars['need_delete_mode'] = true;
            }
            $this->tpl_list_vars['delete_category'] = true;
            $this->tpl_list_vars['REQUEST_URI'] = $_SERVER['REQUEST_URI'];
            $this->tpl_list_vars['POST'] = $_POST;
        }

        return parent::renderList();
    }

    public function getList($id_lang, $order_by = null, $order_way = null, $start = 0, $limit = null, $id_lang_shop = false)
    {
        parent::getList($id_lang, $order_by, $order_way, $start, $limit, Context::getContext()->shop->id);
        // Check each row to see if there are combinations and get the correct action in consequence

        $nb_items = count($this->_list);
        for ($i = 0; $i < $nb_items; $i++) {
            $item = &$this->_list[$i];
            $category_tree = Category::getChildren((int)$item['id_category'], $this->context->language->id, false);
            if (!count($category_tree)) {
                $this->addRowActionSkipList('view', array($item['id_category']));
            }
        }
    }

    public function renderView()
    {
        $this->initToolbar();
        return $this->renderList();
    }

    public function initToolbar()
    {
        if (empty($this->display)) {
            $this->toolbar_btn['new'] = array(
                'href' => self::$currentIndex.'&add'.$this->table.'&token='.$this->token,
                'desc' => $this->l('Add New')
            );

            if ($this->can_import) {
                $this->toolbar_btn['import'] = array(
                    'href' => $this->context->link->getAdminLink('AdminImport', true).'&import_type=categories',
                    'desc' => $this->l('Import')
                );
            }
        }
        // be able to edit the Home category
        if (count(Category::getCategoriesWithoutParent()) == 1 && !Tools::isSubmit('id_category')
            && ($this->display == 'view' || empty($this->display))) {
            $this->toolbar_btn['edit'] = array(
                'href' => self::$currentIndex.'&update'.$this->table.'&id_category='.(int)$this->_category->id.'&token='.$this->token,
                'desc' => $this->l('Edit')
            );
        }
        if (Tools::getValue('id_category') && !Tools::isSubmit('updatecategory')) {
            $this->toolbar_btn['edit'] = array(
                'href' => self::$currentIndex.'&update'.$this->table.'&id_category='.(int)Tools::getValue('id_category').'&token='.$this->token,
                'desc' => $this->l('Edit')
            );
        }

        if ($this->display == 'view') {
            $this->toolbar_btn['new'] = array(
                'href' => self::$currentIndex.'&add'.$this->table.'&id_parent='.(int)Tools::getValue('id_category').'&token='.$this->token,
                'desc' => $this->l('Add New')
            );
        }
        parent::initToolbar();
        if ($this->_category->id == (int)Configuration::get('PS_ROOT_CATEGORY') && isset($this->toolbar_btn['new'])) {
            unset($this->toolbar_btn['new']);
        }
        // after adding a category
        if (empty($this->display)) {
            $id_category = (Tools::isSubmit('id_category')) ? '&id_parent='.(int)Tools::getValue('id_category') : '';
            $this->toolbar_btn['new'] = array(
                'href' => self::$currentIndex.'&add'.$this->table.'&token='.$this->token.$id_category,
                'desc' => $this->l('Add New')
            );

            if (Tools::isSubmit('id_category')) {
                $back = Tools::safeOutput(Tools::getValue('back', ''));
                if (empty($back)) {
                    $back = self::$currentIndex.'&token='.$this->token;
                }
                $this->toolbar_btn['back'] = array(
                    'href' => $back,
                    'desc' => $this->l('Back to list')
                );
            }
        }
        if (!$this->lite_display && isset($this->toolbar_btn['back']['href']) && $this->_category->level_depth > 1
            && $this->_category->id_parent && $this->_category->id_parent != (int)Configuration::get('PS_ROOT_CATEGORY')) {
            $this->toolbar_btn['back']['href'] .= '&id_category='.(int)$this->_category->id_parent;
        }
    }

    public function initProcess()
    {
        if (Tools::isSubmit('add'.$this->table.'root')) {
            if ($this->tabAccess['add']) {
                $this->action = 'add'.$this->table.'root';
                $obj = $this->loadObject(true);
                if (Validate::isLoadedObject($obj)) {
                    $this->display = 'edit';
                } else {
                    $this->display = 'add';
                }
            } else {
                $this->errors[] = Tools::displayError('You do not have permission to edit this.');
            }
        }

        parent::initProcess();

        if ($this->action == 'delete' || $this->action == 'bulkdelete') {
            if (Tools::getIsset('cancel')) {
                Tools::redirectAdmin(self::$currentIndex.'&token='.Tools::getAdminTokenLite('AdminCategories'));
            } elseif (Tools::getValue('deleteMode') == 'link' || Tools::getValue('deleteMode') == 'linkanddisable' || Tools::getValue('deleteMode') == 'delete') {
                $this->delete_mode = Tools::getValue('deleteMode');
            } else {
                $this->action = 'select_delete';
            }
        }
    }

    public function renderKpis()
    {
        $time = time();
        $kpis = array();

        /* The data generation is located in AdminStatsControllerCore */

        $helper = new HelperKpi();
        $helper->id = 'box-disabled-categories';
        $helper->icon = 'icon-off';
        $helper->color = 'color1';
        $helper->title = $this->l('Disabled Categories', null, null, false);
        if (ConfigurationKPI::get('DISABLED_CATEGORIES') !== false) {
            $helper->value = ConfigurationKPI::get('DISABLED_CATEGORIES');
        }
        $helper->source = $this->context->link->getAdminLink('AdminStats').'&ajax=1&action=getKpi&kpi=disabled_categories';
        $helper->refresh = (bool)(ConfigurationKPI::get('DISABLED_CATEGORIES_EXPIRE') < $time);
        $kpis[] = $helper->generate();

        $helper = new HelperKpi();
        $helper->id = 'box-empty-categories';
        $helper->icon = 'icon-bookmark-empty';
        $helper->color = 'color2';
        $helper->href = $this->context->link->getAdminLink('AdminTracking');
        $helper->title = $this->l('Empty Categories', null, null, false);
        if (ConfigurationKPI::get('EMPTY_CATEGORIES') !== false) {
            $helper->value = ConfigurationKPI::get('EMPTY_CATEGORIES');
        }
        $helper->source = $this->context->link->getAdminLink('AdminStats').'&ajax=1&action=getKpi&kpi=empty_categories';
        $helper->refresh = (bool)(ConfigurationKPI::get('EMPTY_CATEGORIES_EXPIRE') < $time);
        $kpis[] = $helper->generate();

        $helper = new HelperKpi();
        $helper->id = 'box-top-category';
        $helper->icon = 'icon-money';
        $helper->color = 'color3';
        $helper->title = $this->l('Top Category', null, null, false);
        $helper->subtitle = $this->l('30 days', null, null, false);
        if (ConfigurationKPI::get('TOP_CATEGORY', $this->context->employee->id_lang) !== false) {
            $helper->value = ConfigurationKPI::get('TOP_CATEGORY', $this->context->employee->id_lang);
        }
        $helper->source = $this->context->link->getAdminLink('AdminStats').'&ajax=1&action=getKpi&kpi=top_category';
        $helper->refresh = (bool)(ConfigurationKPI::get('TOP_CATEGORY_EXPIRE', $this->context->employee->id_lang) < $time);
        $kpis[] = $helper->generate();

        $helper = new HelperKpi();
        $helper->id = 'box-products-per-category';
        $helper->icon = 'icon-search';
        $helper->color = 'color4';
        $helper->title = $this->l('Average number of products per category', null, null, false);
        if (ConfigurationKPI::get('PRODUCTS_PER_CATEGORY') !== false) {
            $helper->value = ConfigurationKPI::get('PRODUCTS_PER_CATEGORY');
        }
        $helper->source = $this->context->link->getAdminLink('AdminStats').'&ajax=1&action=getKpi&kpi=products_per_category';
        $helper->refresh = (bool)(ConfigurationKPI::get('PRODUCTS_PER_CATEGORY_EXPIRE') < $time);
        $kpis[] = $helper->generate();

        $helper = new HelperKpiRow();
        $helper->kpis = $kpis;
        return $helper->generate();
    }

    public function renderForm()
    {
        $this->initToolbar();

        /** @var Category $obj */
        $obj = $this->loadObject(true);
        $context = Context::getContext();
        $id_shop = $context->shop->id;
        $selected_categories = array((isset($obj->id_parent) && $obj->isParentCategoryAvailable($id_shop))? (int)$obj->id_parent : (int)Tools::getValue('id_parent', Category::getRootCategory()->id));
        $unidentified = new Group(Configuration::get('PS_UNIDENTIFIED_GROUP'));
        $guest = new Group(Configuration::get('PS_GUEST_GROUP'));
        $default = new Group(Configuration::get('PS_CUSTOMER_GROUP'));

        $unidentified_group_information = sprintf($this->l('%s - All people without a valid customer account.'), '<b>'.$unidentified->name[$this->context->language->id].'</b>');
        $guest_group_information = sprintf($this->l('%s - Customer who placed an order with the guest checkout.'), '<b>'.$guest->name[$this->context->language->id].'</b>');
        $default_group_information = sprintf($this->l('%s - All people who have created an account on this site.'), '<b>'.$default->name[$this->context->language->id].'</b>');

        if (!($obj = $this->loadObject(true))) {
            return;
        }

        $image = _PS_CAT_IMG_DIR_.$obj->id.'.'.$this->imageType;
        $image_url = ImageManager::thumbnail($image, $this->table.'_'.(int)$obj->id.'.'.$this->imageType, 350, $this->imageType, true, true);

        $image_size = file_exists($image) ? filesize($image) / 1000 : false;
        $images_types = ImageType::getImagesTypes('categories');
        $format = array();
        $thumb = $thumb_url = '';
        $formated_category= ImageType::getFormatedName('category');
        $formated_medium = ImageType::getFormatedName('medium');
        foreach ($images_types as $k => $image_type) {
            if ($formated_category == $image_type['name']) {
                $format['category'] = $image_type;
            } elseif ($formated_medium == $image_type['name']) {
                $format['medium'] = $image_type;
                $thumb = _PS_CAT_IMG_DIR_.$obj->id.'-'.$image_type['name'].'.'.$this->imageType;
                if (is_file($thumb)) {
                    $thumb_url = ImageManager::thumbnail($thumb, $this->table.'_'.(int)$obj->id.'-thumb.'.$this->imageType, (int)$image_type['width'], $this->imageType, true, true);
                }
            }
        }

        if (!is_file($thumb)) {
            $thumb = $image;
            $thumb_url = ImageManager::thumbnail($image, $this->table.'_'.(int)$obj->id.'-thumb.'.$this->imageType, 125, $this->imageType, true, true);
            ImageManager::resize(_PS_TMP_IMG_DIR_.$this->table.'_'.(int)$obj->id.'-thumb.'.$this->imageType, _PS_TMP_IMG_DIR_.$this->table.'_'.(int)$obj->id.'-thumb.'.$this->imageType, (int)$image_type['width'], (int)$image_type['height']);
        }

        $thumb_size = file_exists($thumb) ? filesize($thumb) / 1000 : false;

        $this->fields_form = array(
            'tinymce' => true,
            'legend' => array(
                'title' => $this->l('Category'),
                'icon' => 'icon-tags'
            ),
            'input' => array(
                array(
                    'type' => 'text',
                    'label' => $this->l('Name'),
                    'name' => 'name',
                    'lang' => true,
                    'required' => true,
                    'class' => 'copy2friendlyUrl',
                    'hint' => $this->l('Invalid characters:').' <>;=#{}',
                ),
                array(
                    'type' => 'switch',
                    'label' => $this->l('Displayed'),
                    'name' => 'active',
                    'required' => false,
                    'is_bool' => true,
                    'values' => array(
                        array(
                            'id' => 'active_on',
                            'value' => 1,
                            'label' => $this->l('Enabled')
                        ),
                        array(
                            'id' => 'active_off',
                            'value' => 0,
                            'label' => $this->l('Disabled')
                        )
                    )
                ),
                array(
                    'type'  => 'categories',
                    'label' => $this->l('Parent category'),
                    'name'  => 'id_parent',
                    'tree'  => array(
                        'id'                  => 'categories-tree',
                        'selected_categories' => $selected_categories,
                        'disabled_categories' => (!Tools::isSubmit('add'.$this->table) && !Tools::isSubmit('submitAdd'.$this->table)) ? array($this->_category->id) : null,
                        'root_category'       => $context->shop->getCategory()
                    )
                ),
                array(
                    'type' => 'textarea',
                    'label' => $this->l('Description'),
                    'name' => 'description',
                    'autoload_rte' => true,
                    'lang' => true,
                    'hint' => $this->l('Invalid characters:').' <>;=#{}'
                ),
                array(
                    'type' => 'file',
                    'label' => $this->l('Category Cover Image'),
                    'name' => 'image',
                    'display_image' => true,
                    'image' => $image_url ? $image_url : false,
                    'size' => $image_size,
                    'delete_url' => self::$currentIndex.'&'.$this->identifier.'='.$this->_category->id.'&token='.$this->token.'&deleteImage=1',
                   'hint' => $this->l('This is the main image for your category, displayed in the category page. The category description will overlap this image and appear in its top-left corner.'),
                   'format' => $format['category']
                ),
                array(
                   'type' => 'file',
                   'label' => $this->l('Category thumbnail'),
                   'name' => 'thumb',
                   'display_image' => true,
                   'image' => $thumb_url ? $thumb_url : false,
                   'size' => $thumb_size,
                   'format' => $format['medium']
                ),
                array(
                    'type' => 'text',
                    'label' => $this->l('Meta title'),
                    'name' => 'meta_title',
                    'maxchar' => 70,
                    'lang' => true,
                    'rows' => 5,
                    'cols' => 100,
                    'hint' => $this->l('Forbidden characters:').' <>;=#{}'
                ),
                array(
                    'type' => 'textarea',
                    'label' => $this->l('Meta description'),
                    'name' => 'meta_description',
                    'maxchar' => 160,
                    'lang' => true,
                    'rows' => 5,
                    'cols' => 100,
                    'hint' => $this->l('Forbidden characters:').' <>;=#{}'
                ),
                array(
                    'type' => 'tags',
                    'label' => $this->l('Meta keywords'),
                    'name' => 'meta_keywords',
                    'lang' => true,
                    'hint' => $this->l('To add "tags," click in the field, write something, and then press "Enter."').'&nbsp;'.$this->l('Forbidden characters:').' <>;=#{}'
                ),
                array(
                    'type' => 'text',
                    'label' => $this->l('Friendly URL'),
                    'name' => 'link_rewrite',
                    'lang' => true,
                    'required' => true,
                    'hint' => $this->l('Only letters, numbers, underscore (_) and the minus (-) character are allowed.')
                ),
                array(
                    'type' => 'group',
                    'label' => $this->l('Group access'),
                    'name' => 'groupBox',
                    'values' => Group::getGroups(Context::getContext()->language->id),
                    'info_introduction' => $this->l('You now have three default customer groups.'),
                    'unidentified' => $unidentified_group_information,
                    'guest' => $guest_group_information,
                    'customer' => $default_group_information,
                    'hint' => $this->l('Mark all of the customer groups which you would like to have access to this category.')
                )
            ),
            'submit' => array(
                'title' => $this->l('Save'),
                'name' => 'submitAdd'.$this->table.($this->_category->is_root_category && !Tools::isSubmit('add'.$this->table) && !Tools::isSubmit('add'.$this->table.'root') ? '': 'AndBackToParent')
            )
        );

        $this->tpl_form_vars['shared_category'] = Validate::isLoadedObject($obj) && $obj->hasMultishopEntries();
        $this->tpl_form_vars['PS_ALLOW_ACCENTED_CHARS_URL'] = (int)Configuration::get('PS_ALLOW_ACCENTED_CHARS_URL');
        $this->tpl_form_vars['displayBackOfficeCategory'] = Hook::exec('displayBackOfficeCategory');

        // Display this field only if multistore option is enabled
        if (Configuration::get('PS_MULTISHOP_FEATURE_ACTIVE') && Tools::isSubmit('add'.$this->table.'root')) {
            $this->fields_form['input'][] = array(
                'type' => 'switch',
                'label' => $this->l('Root Category'),
                'name' => 'is_root_category',
                'required' => false,
                'is_bool' => true,
                'values' => array(
                    array(
                        'id' => 'is_root_on',
                        'value' => 1,
                        'label' => $this->l('Yes')
                    ),
                    array(
                        'id' => 'is_root_off',
                        'value' => 0,
                        'label' => $this->l('No')
                    )
                )
            );
            unset($this->fields_form['input'][2], $this->fields_form['input'][3]);
        }
        // Display this field only if multistore option is enabled AND there are several stores configured
        if (Shop::isFeatureActive()) {
            $this->fields_form['input'][] = array(
                'type' => 'shop',
                'label' => $this->l('Shop association'),
                'name' => 'checkBoxShopAsso',
            );
        }

        // remove category tree and radio button "is_root_category" if this category has the root category as parent category to avoid any conflict
        if ($this->_category->id_parent == (int)Configuration::get('PS_ROOT_CATEGORY') && Tools::isSubmit('updatecategory')) {
            foreach ($this->fields_form['input'] as $k => $input) {
                if (in_array($input['name'], array('id_parent', 'is_root_category'))) {
                    unset($this->fields_form['input'][$k]);
                }
            }
        }

        if (!($obj = $this->loadObject(true))) {
            return;
        }

        $image = ImageManager::thumbnail(_PS_CAT_IMG_DIR_.'/'.$obj->id.'.'.$this->imageType, $this->table.'_'.(int)$obj->id.'.'.$this->imageType, 350, $this->imageType, true);

        $this->fields_value = array(
            'image' => $image ? $image : false,
            'size' => $image ? filesize(_PS_CAT_IMG_DIR_.'/'.$obj->id.'.'.$this->imageType) / 1000 : false
        );

        // Added values of object Group
        $category_groups_ids = $obj->getGroups();

        $groups = Group::getGroups($this->context->language->id);
        // if empty $carrier_groups_ids : object creation : we set the default groups
        if (empty($category_groups_ids)) {
            $preselected = array(Configuration::get('PS_UNIDENTIFIED_GROUP'), Configuration::get('PS_GUEST_GROUP'), Configuration::get('PS_CUSTOMER_GROUP'));
            $category_groups_ids = array_merge($category_groups_ids, $preselected);
        }
        foreach ($groups as $group) {
            $this->fields_value['groupBox_'.$group['id_group']] = Tools::getValue('groupBox_'.$group['id_group'], (in_array($group['id_group'], $category_groups_ids)));
        }

        $this->fields_value['is_root_category'] = (bool)Tools::isSubmit('add'.$this->table.'root');

        return parent::renderForm();
    }

    public function postProcess()
    {
        if (!in_array($this->display, array('edit', 'add'))) {
            $this->multishop_context_group = false;
        }
        if (Tools::isSubmit('forcedeleteImage') || (isset($_FILES['image']) && $_FILES['image']['size'] > 0) || Tools::getValue('deleteImage')) {
            $this->processForceDeleteImage();
            $this->processForceDeleteThumb();
            if (Tools::isSubmit('forcedeleteImage')) {
                Tools::redirectAdmin(self::$currentIndex.'&token='.Tools::getAdminTokenLite('AdminCategories').'&conf=7');
            }
        }
        return parent::postProcess();
    }

    public function processForceDeleteThumb()
    {
        $category = $this->loadObject(true);

        if (Validate::isLoadedObject($category)) {
            if (file_exists(_PS_TMP_IMG_DIR_.$this->table.'_'.$category->id.'-thumb.'.$this->imageType)
                && !unlink(_PS_TMP_IMG_DIR_.$this->table.'_'.$category->id.'-thumb.'.$this->imageType)) {
                return false;
            }
            if (file_exists(_PS_CAT_IMG_DIR_.$category->id.'_thumb.'.$this->imageType)
                && !unlink(_PS_CAT_IMG_DIR_.$category->id.'_thumb.'.$this->imageType)) {
                return false;
            }

            $images_types = ImageType::getImagesTypes('categories');
            $formated_medium = ImageType::getFormatedName('medium');
            foreach ($images_types as $k => $image_type) {
                if ($formated_medium == $image_type['name'] &&
                    file_exists(_PS_CAT_IMG_DIR_.$category->id.'-'.$image_type['name'].'.'.$this->imageType) &&
                    !unlink(_PS_CAT_IMG_DIR_.$category->id.'-'.$image_type['name'].'.'.$this->imageType)
                ) {
                    return false;
                }
            }
        }
        return true;
    }

    public function processForceDeleteImage()
    {
        $category = $this->loadObject(true);
        if (Validate::isLoadedObject($category)) {
            $category->deleteImage(true);
        }
    }

    public function processAdd()
    {
        $id_category = (int)Tools::getValue('id_category');
        $id_parent = (int)Tools::getValue('id_parent');

        // if true, we are in a root category creation
        if (!$id_parent) {
            $_POST['is_root_category'] = $_POST['level_depth'] = 1;
            $_POST['id_parent'] = $id_parent = (int)Configuration::get('PS_ROOT_CATEGORY');
        }

        if ($id_category) {
            if ($id_category != $id_parent) {
                if (!Category::checkBeforeMove($id_category, $id_parent)) {
                    $this->errors[] = Tools::displayError('The category cannot be moved here.');
                }
            } else {
                $this->errors[] = Tools::displayError('The category cannot be a parent of itself.');
            }
        }
        $object = parent::processAdd();

        //if we create a you root category you have to associate to a shop before to add sub categories in. So we redirect to AdminCategories listing
        if ($object && Tools::getValue('is_root_category')) {
            Tools::redirectAdmin(self::$currentIndex.'&id_category='.(int)Configuration::get('PS_ROOT_CATEGORY').'&token='.Tools::getAdminTokenLite('AdminCategories').'&conf=3');
        }
        return $object;
    }

    protected function setDeleteMode()
    {
        if ($this->delete_mode == 'link' || $this->delete_mode == 'linkanddisable') {
            $this->remove_products = false;
            if ($this->delete_mode == 'linkanddisable') {
                $this->disable_products = true;
            }
        } elseif ($this->delete_mode != 'delete') {
            $this->errors[] = Tools::displayError('Unknown delete mode:'.' '.$this->deleted);
        }
    }

    protected function processBulkDelete()
    {
        if ($this->tabAccess['delete'] === '1') {
            $cats_ids = array();
            foreach (Tools::getValue($this->table.'Box') as $id_category) {
                $category = new Category((int)$id_category);
                if (!$category->isRootCategoryForAShop()) {
                    $cats_ids[$category->id] = $category->id_parent;
                }
            }

            if (parent::processBulkDelete()) {
                $this->setDeleteMode();
                foreach ($cats_ids as $id => $id_parent) {
                    $this->processFatherlessProducts((int)$id_parent);
                }
                return true;
            } else {
                return false;
            }
        } else {
            $this->errors[] = Tools::displayError('You do not have permission to delete this.');
        }
    }

    public function processDelete()
    {
        if ($this->tabAccess['delete'] === '1') {
            /** @var Category $category */
            $category = $this->loadObject();
            if ($category->isRootCategoryForAShop()) {
                $this->errors[] = Tools::displayError('You cannot remove this category because one of your shops uses it as a root category.');
            } elseif (parent::processDelete()) {
                $this->setDeleteMode();
                $this->processFatherlessProducts((int)$category->id_parent);
                return true;
            }
        } else {
            $this->errors[] = Tools::displayError('You do not have permission to delete this.');
        }
        return false;
    }

    public function processFatherlessProducts($id_parent)
    {
        /* Delete or link products which were not in others categories */
        $fatherless_products = Db::getInstance()->executeS('
			SELECT p.`id_product` FROM `'._DB_PREFIX_.'product` p
			'.Shop::addSqlAssociation('product', 'p').'
			WHERE NOT EXISTS (SELECT 1 FROM `'._DB_PREFIX_.'category_product` cp WHERE cp.`id_product` = p.`id_product`)');

        foreach ($fatherless_products as $id_poor_product) {
            $poor_product = new Product((int)$id_poor_product['id_product']);
            if (Validate::isLoadedObject($poor_product)) {
                if ($this->remove_products || $id_parent == 0) {
                    $poor_product->delete();
                } else {
                    if ($this->disable_products) {
                        $poor_product->active = 0;
                    }
                    $poor_product->id_category_default = (int)$id_parent;
                    $poor_product->addToCategories((int)$id_parent);
                    $poor_product->save();
                }
            }
        }
    }

    public function processPosition()
    {
        if ($this->tabAccess['edit'] !== '1') {
            $this->errors[] = Tools::displayError('You do not have permission to edit this.');
        } elseif (!Validate::isLoadedObject($object = new Category((int)Tools::getValue($this->identifier, Tools::getValue('id_category_to_move', 1))))) {
            $this->errors[] = Tools::displayError('An error occurred while updating the status for an object.').' <b>'.
                $this->table.'</b> '.Tools::displayError('(cannot load object)');
        }
        if (!$object->updatePosition((int)Tools::getValue('way'), (int)Tools::getValue('position'))) {
            $this->errors[] = Tools::displayError('Failed to update the position.');
        } else {
            $object->regenerateEntireNtree();
            Tools::redirectAdmin(self::$currentIndex.'&'.$this->table.'Orderby=position&'.$this->table.'Orderway=asc&conf=5'.(($id_category = (int)Tools::getValue($this->identifier, Tools::getValue('id_category_parent', 1))) ? ('&'.$this->identifier.'='.$id_category) : '').'&token='.Tools::getAdminTokenLite('AdminCategories'));
        }
    }

    protected function postImage($id)
    {
        $ret = parent::postImage($id);
        if (($id_category = (int)Tools::getValue('id_category')) && isset($_FILES) && count($_FILES)) {
            $name = 'image';
            if ($_FILES[$name]['name'] != null && file_exists(_PS_CAT_IMG_DIR_.$id_category.'.'.$this->imageType)) {
                $images_types = ImageType::getImagesTypes('categories');
                foreach ($images_types as $k => $image_type) {
                    if (!ImageManager::resize(
                        _PS_CAT_IMG_DIR_.$id_category.'.'.$this->imageType,
                        _PS_CAT_IMG_DIR_.$id_category.'-'.stripslashes($image_type['name']).'.'.$this->imageType,
                        (int)$image_type['width'],
                        (int)$image_type['height']
                    )) {
                        $this->errors = Tools::displayError('An error occurred while uploading category image.');
                    }
                }
            }

            $name = 'thumb';
            if ($_FILES[$name]['name'] != null) {
                if (!isset($images_types)) {
                    $images_types = ImageType::getImagesTypes('categories');
                }
                $formated_medium = ImageType::getFormatedName('medium');
                foreach ($images_types as $k => $image_type) {
                    if ($formated_medium == $image_type['name']) {
                        if ($error = ImageManager::validateUpload($_FILES[$name], Tools::getMaxUploadSize())) {
                            $this->errors[] = $error;
                        } elseif (!($tmpName = tempnam(_PS_TMP_IMG_DIR_, 'PS')) || !move_uploaded_file($_FILES[$name]['tmp_name'], $tmpName)) {
                            $ret = false;
                        } else {
                            if (!ImageManager::resize(
                                $tmpName,
                                _PS_CAT_IMG_DIR_.$id_category.'-'.stripslashes($image_type['name']).'.'.$this->imageType,
                                (int)$image_type['width'],
                                (int)$image_type['height']
                            )) {
                                $this->errors = Tools::displayError('An error occurred while uploading thumbnail image.');
                            } elseif (($infos = getimagesize($tmpName)) && is_array($infos)) {
                                ImageManager::resize(
                                    $tmpName,
                                    _PS_CAT_IMG_DIR_.$id_category.'_'.$name.'.'.$this->imageType,
                                    (int)$infos[0],
                                    (int)$infos[1]
                                );
                            }
                            if (count($this->errors)) {
                                $ret = false;
                            }
                            unlink($tmpName);
                            $ret = true;
                        }
                    }
                }
            }
        }
        return $ret;
    }

    public static function getDescriptionClean($description)
    {
        return Tools::getDescriptionClean($description);
    }

    public function ajaxProcessUpdatePositions()
    {
        $id_category_to_move = (int)Tools::getValue('id_category_to_move');
        $id_category_parent = (int)Tools::getValue('id_category_parent');
        $way = (int)Tools::getValue('way');
        $positions = Tools::getValue('category');
        $found_first = (bool)Tools::getValue('found_first');
        if (is_array($positions)) {
            foreach ($positions as $key => $value) {
                $pos = explode('_', $value);
                if ((isset($pos[1]) && isset($pos[2])) && ($pos[1] == $id_category_parent && $pos[2] == $id_category_to_move)) {
                    $position = $key;
                    break;
                }
            }
        }

        $category = new Category($id_category_to_move);
        if (Validate::isLoadedObject($category)) {
            if (isset($position) && $category->updatePosition($way, $position)) {
                /* Position '0' was not found in given positions so try to reorder parent category*/
                if (!$found_first) {
                    $category->cleanPositions((int)$category->id_parent);
                }

                die(true);
            } else {
                die('{"hasError" : true, errors : "Cannot update categories position"}');
            }
        } else {
            die('{"hasError" : true, "errors" : "This category cannot be loaded"}');
        }
    }

    public function ajaxProcessStatusCategory()
    {
        if (!$id_category = (int)Tools::getValue('id_category')) {
            die(Tools::jsonEncode(array('success' => false, 'error' => true, 'text' => $this->l('Failed to update the status'))));
        } else {
            $category = new Category((int)$id_category);
            if (Validate::isLoadedObject($category)) {
                $category->active = $category->active == 1 ? 0 : 1;
                $category->save() ?
                die(Tools::jsonEncode(array('success' => true, 'text' => $this->l('The status has been updated successfully')))) :
                die(Tools::jsonEncode(array('success' => false, 'error' => true, 'text' => $this->l('Failed to update the status'))));
            }
        }
    }
}
