<?php
require_once(__DIR__.'/classes/GuideCategory.php');
require_once(__DIR__.'/classes/FormBuilder.php');

class AdminGuideCategories extends AdminTab
{
	const IMG_WIDTH = 300;
	const IMG_HEIGHT = 200;

	private static $current_category = 0;
	private static $category_parent = 0;
	private $maxImageBytes = 0;

	public function __construct()
	{
		global $cookie;
		$this->maxImageBytes = (Configuration::get('PS_LIMIT_UPLOAD_IMAGE_VALUE') * 1000000);

		$this->table = 'guide_category';
	 	$this->className = 'GuideCategory';
	 	$this->lang = true;
	 	$this->edit = true;
	 	$this->delete = true;
	 	$this->view = true;


		$this->fieldsDisplay = array(
			'id_guide_category' => array(
				'title' => $this->l('ID'), 
				'align' => 'center', 
				'width' => 30
				),
			'name' => array(
				'title' => $this->l('Title'), 
				'width' => 100
				),
			'description' => array(
				'title' => $this->l('Description'), 
				'width' => 500, 
				'maxlength' => 90, 
				'orderby' => false
				),
			'position' => array(
				'title' => $this->l('Position'), 
				'width' => 40,
				'filter_key' => 'position', 
				'align' => 'center', 
				'position' => 'position'
				),
			'active' => array(
				'title' => $this->l('Displayed'), 
				'active' => 'status', 
				'align' => 'center', 
				'type' => 'bool', 
				'orderby' => false
				)
			);
		
		if (isset($_GET['delete'.$this->table])) {
			self::$current_category = new GuideCategory(
				(int)(Tools::getValue('id_guide_category_parent', 0))
				);
		}
		else {
			self::$current_category = new GuideCategory(
				(int)(
					Tools::getValue('id_guide_category', 
						Tools::getValue('id_guide_category_parent', 0))
					)
				);
		}

		$this->_select = 'position ';
		$this->_filter = 'AND a.`id_parent` = '.(int)(self::$current_category->id);
		$this->_orderBy = 'position';
		$this->_orderWay = 'DESC';
		$this->identifiersDnd['id_guide_category'] = 'id_guide_category';

		parent::__construct();
	}

	public static function getCurrentCategory()
	{
		return self::$current_category;
	}

	public function displayForm($token = NULL)
	{
		global $currentIndex, $cookie, $smarty;
		parent::displayForm();

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


		$langs = Language::getLanguages(false);

		$form = new FormBuilder('AdminGuideCategories', $this->table, 'id_guide_category', 'Add');

		$this->fieldsForm = array(
			'id_parent' => array(
				'title' => $this->l('Catégorie parent'),
				'type' => 'select',
				'options_raw' => GuideCategory::findCategoriesTree($cookie->id_lang, $obj->id),
				'options_map' => ['id_guide_category', 'name', 'level'],
				'empty_option' => ['value'=>'0', 'label'=>$this->l('No parent category')],
				'initial_value' => $obj->id_parent?$obj->id_parent:self::$current_category->id
				),		
			'id_category_family' => array(
				'title' => $this->l('Famille'),
				'type' => 'select',
				'options_raw' => GuideCategory::findFamiliesTree($cookie->id_lang),
				'options_map' => ['id_category_family', 'name', 'level'],
				'initial_value' => $obj->id_category_family
				),			
			'name' => array(
				'title' => $this->l('Title'), 
				'type' => 'text',
				'required' => true,
				'translatable' => true,
				'attrs' => [
					'onkeyup' =>  'copy2friendlyURL();'
					]
				),
			'description' => array(
				'title' => $this->l('Description'),
				'type' => 'textarea',
				'translatable' => true,
				),
			'image' => array(
				'title' => $this->l('Image'),
				'type' => 'file',
				'file_attrs' => [
					'max_bytes' => $this->maxImageBytes,
					'allowed_format' => 'JPEG',
					'html_file' => "img",
					'path' => $obj->getImageFileUrl().'?rand='.time()
					]
				),
			'active' => array(
				'title' => $this->l('Displayed'),
				'type' => 'yesno',
				'required' => true,
				),
			'link_rewrite' => array(
				'title' => $this->l('Simplified URL'), 
				'type' => 'text',
				'required' => true,
				),
			'meta_title' => array(
				'title' => $this->l('Title (META)'), 
				'type' => 'text',
				'translatable' => true,
				),
			'meta_description' => array(
				'title' => $this->l('Description (META)'), 
				'type' => 'textarea',
				'translatable' => true,
				),
			);

        $form->setTitle($this->l('Purchase guide category'));
		$form->setFields($this->fieldsForm);
		$form->enableSubmitAndBackToParent();
		$form->setSubmitButton($this->l('Save'));
		$form->display($smarty, $langs, $obj);

		$currentIndex .= '&id_guide_category='.($obj->id?$obj->id_parent:self::$current_category->id);
	}

	public function displayTop()
	{
		global $currentIndex, $cookie;
		$clean_currentIndex = $currentIndex;

		$parent_category = 0;
		if (Validate::isLoadedObject(self::$current_category)) {
			$parent_category = new GuideCategory(self::$current_category->id_parent);

			if (Validate::isLoadedObject($parent_category)) {
				echo '<a href="'.$clean_currentIndex.'&token='.$this->token.'&id_guide_category='.$parent_category->id.'"><img src="../img/admin/arrow2.gif" /> '.$this->l('back to').' '.$parent_category->name[$cookie->id_lang].'</a><br /><br />';
			}
			else {
				echo '<a href="'.$clean_currentIndex.'&token='.$this->token.'"><img src="../img/admin/arrow2.gif" /> '.$this->l('back').'</a><br /><br />';
			}

			echo $this->l('Current category').' : '.self::$current_category->name[$cookie->id_lang].'<br /><br />';
		}
	}
	
	public function displayList()
	{
		global $currentIndex;

		
		$this->displayTop();

		if ($this->edit AND (!isset($this->noAdd) OR !$this->noAdd))
			echo '<br /><a href="'.$currentIndex.'&id_guide_category_parent='.self::$current_category->id.'&add'.$this->table.'&token='.$this->token.'"><img src="../img/admin/add.gif" border="0" /> '.$this->l('Add new').'</a><br /><br />';
		// Append when we get a syntax error in SQL query
		if ($this->_list === false)
		{
			$this->displayWarning($this->l('Bad SQL query'));
			return false;
		}

		// Display list header (filtering, pagination and column names)
		$this->displayListHeader();
		if (!sizeof($this->_list))
			echo '<tr><td class="center" colspan="'.(sizeof($this->fieldsDisplay) + 2).'">'.$this->l('No items found').'</td></tr>';

		// Show the content of the table
		$this->displayListContent();

		// Close list table and submit button
		$this->displayListFooter();
		
		
	}


	public function viewguide_category()
	{
		global $cookie;
		$this->getList((int)($cookie->id_lang));
		$this->displayList();
		$this->displayOptionsList();
		$this->displayRequiredFields();
		$this->includeSubTab('display');
	}

	protected function _displayEditLink($token = NULL, $id)
	{
		global $currentIndex;

		$_cacheLang['Edit'] = $this->l('Edit');

		echo '
			<a href="'.$currentIndex.'&'.$this->identifier.'='.$id.'&update'.$this->table.'&token='.($token!=NULL ? $token : $this->token).'&id_guide_category_parent='.self::$current_category->id.'">
			<img src="../img/admin/edit.gif" alt="" title="'.$_cacheLang['Edit'].'" /></a>';
	}

	protected function _displayDeleteLink($token = NULL, $id)
	{
		global $currentIndex;

		$_cacheLang['Delete'] = $this->l('Delete');
		$_cacheLang['DeleteItem'] = $this->l('Delete item #', __CLASS__, TRUE, FALSE);

		echo '
			<a href="'.$currentIndex.'&'.$this->identifier.'='.$id.'&delete'.$this->table.'&token='.($token!=NULL ? $token : $this->token).'&id_guide_category_parent='.self::$current_category->id.'" onclick="return confirm(\''.$_cacheLang['DeleteItem'].$id.' ?'.
					(!is_null($this->specificConfirmDelete) ? '\r'.$this->specificConfirmDelete : '').'\');">
			<img src="../img/admin/delete.gif" alt="'.$_cacheLang['Delete'].'" title="'.$_cacheLang['Delete'].'" /></a>';
	}


	public function postProcess()
	{	
		if (isset($_GET['delete'.$this->table]) ||
			Tools::getValue('submitDel'.$this->table)) {
			$this->postProcessDelete();
			return;
	    }

		parent::postProcess();
	}


	protected function afterUpdate()
	{
		return $this->afterAdd();
	}


	protected function afterAdd()
	{
		if (isset($_FILES['image']['tmp_name']) &&
			$_FILES['image']['tmp_name'] != NULL) {
			
			$object = $this->loadObject();
			$error = checkImage( $_FILES['image'], $this->maxImageSize);
			if ($error) {
	            $this->_errors[] = $error;
	            return false;
			}

			$tmpName = tempnam(_PS_TMP_IMG_DIR_, 'PS');

            if (!$tmpName OR !move_uploaded_file($_FILES['image']['tmp_name'], $tmpName)) {
                $this->_errors[] = Tools::displayError('An error occurred during the image upload');
                return false;
            }

            $new_path = $object->getImageFilePath();

            if (file_exists($new_path)) {
            	@unlink($new_path);
            }
            if (!imageResize($tmpName, $new_path, self::IMG_WIDTH, self::IMG_HEIGHT)) {
                $this->_errors[] = Tools::displayError('An error occurred while copying image.');
                return false;
            }

            @unlink($tmpName);
            
		}
        return true;
	}

	private function postProcessDelete()
	{
		global $currentIndex;
		
		if ($this->tabAccess['delete'] === '1')
		{
			if (isset($_GET['delete'.$this->table])) {
				$object = $this->loadObject();

				if (Validate::isLoadedObject($object)) {
					$result = $object->delete();

					if (!$result) {
						if ($object->getDeleteError()==1) {
							$this->_errors[] = Tools::displayError($this->l('The category has at least one sub category'));
						}
						else if ($object->getDeleteError()==2) {
							$this->_errors[] = Tools::displayError($this->l('The category contains at least one page'));
						}
						else {
							$this->_errors[] = Tools::displayError('An error occurred during deletion.');
						}
					}
					else {
						Tools::redirectAdmin($currentIndex.'&id_guide_category_parent='.self::$current_category->id.'&conf=1&token='.$this->token);
					}
				}	
				else {
					$this->_errors[] = Tools::displayError('An error occurred while deleting object.').' <b>'.$this->table.'</b> '.Tools::displayError('(cannot load object)');
				}
				return;
			}
			elseif (Tools::getValue('submitDel'.$this->table)) {
				$object = new GuideCategory();
				$result = $object->deleteSelection(Tools::getValue($this->table.'Box'));

				if (!$result) {
					if ($object->getDeleteError()==1) {
						$this->_errors[] = Tools::displayError($this->l('One of the selected categories has at least one sub category'));
					}
					elseif ($object->getDeleteError()==2) {
						$this->_errors[] = Tools::displayError($this->l('One of the selected categories contains at least one page'));
					}
					else {
						$this->_errors[] = Tools::displayError('An error occurred while deleting selection.');						
					}
				}
				else {
					Tools::redirectAdmin($currentIndex.'&id_guide_category_parent='.self::$current_category->id.'&conf=1&token='.$this->token);
				}
				return;
			}
		}
	}
}