<?php
/*
* 2007-2013 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  2007-2013 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class AdminLanguagesControllerCore extends AdminController
{
	public function __construct()
	{
	 	$this->table = 'lang';
		$this->className = 'Language';
	 	$this->lang = false;
		$this->deleted = false;
		$this->multishop_context = Shop::CONTEXT_ALL;

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

 		$this->fieldImageSettings = array(
 			array(
 				'name' => 'flag',
 				'dir' => 'l'
 			),
 			array(
 				'name' => 'no-picture',
 				'dir' => 'p'
 			)
 		);

		$this->fields_list = array(
			'id_lang' => array(
				'title' => $this->l('ID'),
				'align' => 'center',
				'width' => 25
			),
			'flag' => array(
				'title' => $this->l('Logo'),
				'align' => 'center',
				'image' => 'l',
				'orderby' => false,
				'search' => false
			),
			'name' => array(
				'title' => $this->l('Name'),
				'width' => 120
			),
			'iso_code' => array(
				'title' => $this->l('ISO code'),
				'width' => 70,
				'align' => 'center'
			),
			'language_code' => array(
				'title' => $this->l('Language code'),
				'width' => 70,
				'align' => 'center'
			),
			'date_format_lite' => array(
				'title' => $this->l('Date format')
			),
			'date_format_full' => array(
				'title' => $this->l('Date format (full)')
			),
			'active' => array(
				'title' => $this->l('Enabled'),
				'align' => 'center',
				'active' => 'status',
				'type' => 'bool'
			)
		);

		$this->bulk_actions = array(
			'delete' => array('text' => $this->l('Delete selected'), 'confirm' => $this->l('Delete selected items?')),
			'enableSelection' => array('text' => $this->l('Enable selection')),
			'disableSelection' => array('text' => $this->l('Disable selection'))
			);
		$this->specificConfirmDelete = $this->l('When you delete a language, all related translations in the database will be deleted. Are you sure you want to proceed?');

		parent::__construct();
	}

	public function renderList()
	{
		$this->addRowAction('edit');
		$this->addRowAction('delete');

		$this->displayWarning($this->l('When you delete a language, all related translations in the database will be deleted.'));
		if (!is_writable(_PS_ROOT_DIR_.'/.htaccess') && Configuration::get('PS_REWRITING_SETTINGS'))
			$this->displayInformation($this->l('Your .htaccess file must be writable.'));
		return parent::renderList();
	}

	public function renderForm()
	{
		$this->fields_form = array(
			'legend' => array(
				'title' => $this->l('Languages'),
				'image' => '../img/admin/world.gif'
			),
			'input' => array(
				array(
					'type' => 'hidden',
					'name' => 'ps_version'
				),
				array(
					'type' => 'text',
					'label' => $this->l('Name:'),
					'name' => 'name',
					'size' => 32,
					'maxlength' => 32,
					'required' => true
				),
				array(
					'type' => 'text',
					'label' => $this->l('ISO code:'),
					'name' => 'iso_code',
					'required' => true,
					'size' => 2,
					'maxlength' => 2,
					'desc' => $this->l('Two-letter ISO code (e.g. FR, EN, DE)')
				),
				array(
					'type' => 'text',
					'label' => $this->l('Language code:'),
					'name' => 'language_code',
					'required' => true,
					'size' => 2,
					'maxlength' => 5,
					'desc' => $this->l('IETF language tag (e.g. en-US, pt-BR).').' '.sprintf('<a href="http://en.wikipedia.org/wiki/IETF_language_tag" target="_blank">%s <img src="../img/admin/external_link.png" class="icon-top" /></a>', $this->l('IETF on Wikipedia'))
				),
				array(
					'type' => 'text',
					'label' => $this->l('Date format:'),
					'name' => 'date_format_lite',
					'required' => true,
					'size' => 15,
					'desc' => sprintf($this->l('Short date format (e.g., %s)'), '<a href="http://php.net/date" target="_blank">Y-m-d</a>')
				),
				array(
					'type' => 'text',
					'label' => $this->l('Date format (full):'),
					'name' => 'date_format_full',
					'required' => true,
					'size' => 25,
					'desc' => sprintf($this->l('Full date format (e.g., %s)'), '<a href="http://php.net/date" target="_blank">Y-m-d H:i:s</a>')
				),
				array(
					'type' => 'file',
					'label' => $this->l('Flag:'),
					'name' => 'flag',
					'required' => true,
					'desc' => $this->l('Upload the country flag from your computer')
				),
				array(
					'type' => 'file',
					'label' => $this->l('"No-picture" image:'),
					'name' => 'no-picture',
					'desc' => $this->l('Image is displayed when "no picture is found"')
				),
				array(
					'type' => 'radio',
					'label' => $this->l('Is RTL language:'),
					'name' => 'is_rtl',
					'required' => false,
					'class' => 't',
					'is_bool' => true,
					'values' => array(
						array(
							'id' => 'is_rtl_on',
							'value' => 1,
							'label' => $this->l('Enabled')
						),
						array(
							'id' => 'active_off',
							'value' => 0,
							'label' => $this->l('Disabled')
						)
					),
					'desc' => $this->l('Enable if this language is read from right to left').' '.
							$this->l('(Experimental: your theme must be compliant with RTL languages)')
				),
				array(
					'type' => 'radio',
					'label' => $this->l('Status:'),
					'name' => 'active',
					'required' => false,
					'class' => 't',
					'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')
						)
					),
					'desc' => $this->l('Activate this language')
				),
				array(
					'type' => 'special',
					'name' => 'resultCheckLangPack',
					'text' => $this->l('Check to see if a language pack is available for this ISO code.'),
					'img' => 'ajax-loader.gif'
				)
			)
		);

		if (Shop::isFeatureActive())
		{
			$this->fields_form['input'][] = array(
				'type' => 'shop',
				'label' => $this->l('Shop association:'),
				'name' => 'checkBoxShopAsso',
			);
		}

		$this->fields_form['submit'] = array(
			'title' => $this->l('Save   '),
			'class' => 'button'
		);

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

		if ($obj->id && !$obj->checkFiles())
		{
			$this->fields_form['new'] = array(
				'legend' => array(
					'title' => $this->l('Warning'),
					'image' => '../img/admin/warning.gif'
				),
				'list_files' => array(
					array(
						'label' => $this->l('Translation files:'),
						'files' => Language::getFilesList($obj->iso_code, _THEME_NAME_, false, false, 'tr', true)
					),
					array(
						'label' => $this->l('Theme files:'),
						'files' => Language::getFilesList($obj->iso_code, _THEME_NAME_, false, false, 'theme', true)
					),
					array(
						'label' => $this->l('Mail files:'),
						'files' => Language::getFilesList($obj->iso_code, _THEME_NAME_, false, false, 'mail', true)
					)
				)
			);
		}

		$this->fields_value = array(
			'ps_version' => _PS_VERSION_
		);

		$this->addJS(_PS_JS_DIR_.'checkLangPack.js');

		return parent::renderForm();
	}

	public function processDelete()
	{
		$object = $this->loadObject();
		if (!$this->checkDeletion($object))
			return false;
		if (!$this->deleteNoPictureImages((int)$object->id))
			$this->errors[] = Tools::displayError('An error occurred while deleting the object.').' <b>'.$this->table.'</b> ';

		return parent::processDelete();
	}

	protected function processBulkDelete()
	{
		$can_bulk = true;
		if (is_array($this->boxes) && !empty($this->boxes))
		{
			foreach ($this->boxes as $id_lang)
			{
				$object = new Language((int)$id_lang);
				if (!$this->checkDeletion($object))
					return false;
				if (!$this->deleteNoPictureImages((int)$object->id))
				{
					$this->errors[] = Tools::displayError('An error occurred while deleting the object.').' <b>'.$this->table.'</b> ';
					return false;
				}
			}
		}
		return parent::processBulkDelete();
	}

	protected function checkDeletion($object)
	{
		if (Validate::isLoadedObject($object))
		{
			if ($object->id == Configuration::get('PS_LANG_DEFAULT'))
				$this->errors[] = $this->l('You cannot delete the default language.');
			elseif ($object->id == $this->context->language->id)
				$this->errors[] = $this->l('You cannot delete the language currently in use. Please select a different language.');
			else
				return true;
		}
		else	
			$this->errors[] = Tools::displayError('(cannot load object)');	

		return false;
	}

	protected function checkDisableStatus($object)
	{
		if (!Validate::isLoadedObject($object))
			$this->errors[] = Tools::displayError('An error occurred while updating the status for an object.').' <b>'.$this->table.'</b> '.Tools::displayError('(cannot load object)');
		else
		{
			if ($object->id == (int)Configuration::get('PS_LANG_DEFAULT'))
					$this->errors[] = Tools::displayError('You cannot change the status of the default language.');
			else
				return true;
		}
		return false;
	}

	public function processStatus()
	{
		$object = $this->loadObject();
		if ($this->checkDisableStatus($object))
		{
			$this->checkEmployeeIdLang($object->id);
			return parent::processStatus();
		}
		return false;
	}

	protected function processBulkDisableSelection()
	{
		if (is_array($this->boxes) && !empty($this->boxes))
		{
			foreach ($this->boxes as $id_lang)
			{
				$object = new Language((int)$id_lang);
				if (!$this->checkDisableStatus($object))
					return false;
				$this->checkEmployeeIdLang($object->id);
			}
		}
		return parent::processBulkDisableSelection();
	}

	public function processAdd()
	{
		if (isset($_POST['iso_code']) && !empty($_POST['iso_code']) && Validate::isLanguageIsoCode(Tools::getValue('iso_code')) && Language::getIdByIso($_POST['iso_code']))
			$this->errors[] = Tools::displayError('This ISO code is already linked to another language.');
		if ((!empty($_FILES['no-picture']['tmp_name']) || !empty($_FILES['flag']['tmp_name'])) && Validate::isLanguageIsoCode(Tools::getValue('iso_code')))
		{
			if ($_FILES['no-picture']['error'] == UPLOAD_ERR_OK)
				$this->copyNoPictureImage(strtolower(Tools::getValue('iso_code')));
			unset($_FILES['no-picture']);
		}
		else
			$this->errors[] = Tools::displayError('Flag and "No picture" image fields are required.');

		return parent::processAdd();
	}

	public function processUpdate()
	{
		if (( isset($_FILES['no-picture']) && !$_FILES['no-picture']['error'] || isset($_FILES['flag']) && !$_FILES['flag']['error'])
				&& Validate::isLanguageIsoCode(Tools::getValue('iso_code')))
			{
				if ($_FILES['no-picture']['error'] == UPLOAD_ERR_OK)
					$this->copyNoPictureImage(strtolower(Tools::getValue('iso_code')));
						// class AdminTab deal with every $_FILES content, don't do that for no-picture
					unset($_FILES['no-picture']);
			}
			$object = $this->loadObject();
			if (Tools::getValue('active') != (int)$object->active)
				if (!$this->checkDisableStatus($object))
					return false;

		$this->checkEmployeeIdLang($object->id);
		return parent::processUpdate();
	}

	/**
	 * Copy a no-product image
	 *
	 * @param string $language Language iso_code for no-picture image filename
	 */
	public function copyNoPictureImage($language)
	{
		if (isset($_FILES['no-picture']) && $_FILES['no-picture']['error'] === 0)
			if ($error = ImageManager::validateUpload($_FILES['no-picture'], Tools::getMaxUploadSize()))
				$this->errors[] = $error;
			else
			{
				if (!($tmp_name = tempnam(_PS_TMP_IMG_DIR_, 'PS')) || !move_uploaded_file($_FILES['no-picture']['tmp_name'], $tmp_name))
					return false;
				if (!ImageManager::resize($tmp_name, _PS_IMG_DIR_.'p/'.$language.'.jpg'))
					$this->errors[] = Tools::displayError('An error occurred while copying "No Picture" image to your product folder.');
				if (!ImageManager::resize($tmp_name, _PS_IMG_DIR_.'c/'.$language.'.jpg'))
					$this->errors[] = Tools::displayError('An error occurred while copying "No picture" image to your category folder.');
				if (!ImageManager::resize($tmp_name, _PS_IMG_DIR_.'m/'.$language.'.jpg'))
					$this->errors[] = Tools::displayError('An error occurred while copying "No picture" image to your manufacturer folder.');
				else
				{
					$images_types = ImageType::getImagesTypes('products');
					foreach ($images_types as $k => $image_type)
					{
						if (!ImageManager::resize($tmp_name, _PS_IMG_DIR_.'p/'.$language.'-default-'.stripslashes($image_type['name']).'.jpg', $image_type['width'], $image_type['height']))
							$this->errors[] = Tools::displayError('An error occurred while resizing "No picture" image to your product directory.');
						if (!ImageManager::resize($tmp_name, _PS_IMG_DIR_.'c/'.$language.'-default-'.stripslashes($image_type['name']).'.jpg', $image_type['width'], $image_type['height']))
							$this->errors[] = Tools::displayError('An error occurred while resizing "No picture" image to your category directory.');
						if (!ImageManager::resize($tmp_name, _PS_IMG_DIR_.'m/'.$language.'-default-'.stripslashes($image_type['name']).'.jpg', $image_type['width'], $image_type['height']))
							$this->errors[] = Tools::displayError('An error occurred while resizing "No picture" image to your manufacturer directory.');
					}
				}
				unlink($tmp_name);
			}
	}

	/**
	 * deleteNoPictureImages will delete all default image created for the language id_language
	 *
	 * @param string $id_language
	 * @return boolean true if no error
	 */
	protected function deleteNoPictureImages($id_language)
	{
	 	$language = Language::getIsoById($id_language);
		$images_types = ImageType::getImagesTypes('products');
		$dirs = array(_PS_PROD_IMG_DIR_, _PS_CAT_IMG_DIR_, _PS_MANU_IMG_DIR_, _PS_SUPP_IMG_DIR_, _PS_MANU_IMG_DIR_);
		foreach ($dirs as $dir)
		{
			foreach ($images_types as $k => $image_type)
				if (file_exists($dir.$language.'-default-'.stripslashes($image_type['name']).'.jpg'))
					if (!unlink($dir.$language.'-default-'.stripslashes($image_type['name']).'.jpg'))
						$this->errors[] = Tools::displayError('An error occurred during image deletion process.');

			if (file_exists($dir.$language.'.jpg'))
				if (!unlink($dir.$language.'.jpg'))
					$this->errors[] = Tools::displayError('An error occurred during image deletion process.');
		}

		return !count($this->errors) ? true : false;
	}

	protected function copyFromPost(&$object, $table)
	{
		if ($object->id && ($object->iso_code != $_POST['iso_code']))
			if (Validate::isLanguageIsoCode($_POST['iso_code']))
				$object->moveToIso($_POST['iso_code']);
		parent::copyFromPost($object, $table);
	}

	public function ajaxProcessCheckLangPack()
	{
		$this->json = true;
		if (!Tools::getValue('iso_lang') || !Validate::isLanguageIsoCode(Tools::getValue('iso_lang')))
		{
			$this->status = 'error';
			$this->errors[] = $this->l('Iso code is not valid');
			return;
		}
		if (!Tools::getValue('ps_version') || !Validate::isPrestaShopVersion(Tools::getValue('ps_version')))
		{
			$this->status = 'error';
			$this->errors[] = $this->l('Technical Error: ps_version is not valid');
			return;
		}

		// Get all iso code available
		if ($lang_packs = Tools::file_get_contents('http://www.prestashop.com/download/lang_packs/get_language_pack.php?version='.Tools::getValue('ps_version').'&iso_lang='.Tools::strtolower(Tools::getValue('iso_lang'))))
		{
			$result = Tools::jsonDecode($lang_packs);
			if ($lang_packs !== '' && $result && !isset($result->error))
			{
				$this->status = 'ok';
				$this->content = $lang_packs;
			}
			else
			{
				$this->status = 'error';
				$this->errors[] = $this->l('Wrong ISO code, or the selected language pack is unavailable.');
			}
		}
		else
		{
			$this->status = 'error';
			$this->errors[] = $this->l('Technical Error: translation server unreachable');
		}
	}

	protected function checkEmployeeIdLang($current_id_lang)
	{
		//update employee lang if current id lang is disabled
		Db::getInstance()->execute('UPDATE `'._DB_PREFIX_.'employee` set `id_lang`='.(int)Configuration::get('PS_LANG_DEFAULT').' WHERE `id_lang`='.(int)$current_id_lang);
	}
}