<?php
/*
* 2007-2014 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Academic Free License (AFL 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/afl-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  2007-2014 PrestaShop SA
*  @license    http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

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

class BlockBanner extends Module
{
	public function __construct()
	{
		$this->name = 'blockbanner';
		$this->tab = 'front_office_features';
		$this->version = '1.3.3';
		$this->author = 'PrestaShop';
		$this->need_instance = 0;

		$this->bootstrap = true;
		parent::__construct();	

		$this->displayName = $this->l('Banner block');
		$this->description = $this->l('Displays a banner at the top of the shop.');
		$this->ps_versions_compliancy = array('min' => '1.6', 'max' => _PS_VERSION_);
	}

	public function install()
	{
		return 
			parent::install() && 
			$this->registerHook('displayBanner') && 
			$this->registerHook('displayHeader') && 
			$this->registerHook('actionObjectLanguageAddAfter') &&
			$this->installFixtures() &&
			$this->disableDevice(Context::DEVICE_MOBILE);
	}
	
	public function hookActionObjectLanguageAddAfter($params)
	{
		return $this->installFixture((int)$params['object']->id, Configuration::get('BLOCKBANNER_IMG', (int)Configuration::get('PS_LANG_DEFAULT')));
	}
	
	protected function installFixtures()
	{
		$languages = Language::getLanguages(false);
		foreach ($languages as $lang)
			$this->installFixture((int)$lang['id_lang'], 'sale70.png');

		return true;
	}
	
	protected function installFixture($id_lang, $image = null)
	{
		$values['BLOCKBANNER_IMG'][(int)$id_lang] = $image;
		$values['BLOCKBANNER_LINK'][(int)$id_lang] = '';
		$values['BLOCKBANNER_DESC'][(int)$id_lang] = '';
		Configuration::updateValue('BLOCKBANNER_IMG', $values['BLOCKBANNER_IMG']);
		Configuration::updateValue('BLOCKBANNER_LINK', $values['BLOCKBANNER_LINK']);
		Configuration::updateValue('BLOCKBANNER_DESC', $values['BLOCKBANNER_DESC']);
	}

	public function uninstall()
	{
		Configuration::deleteByName('BLOCKBANNER_IMG');
		Configuration::deleteByName('BLOCKBANNER_LINK');
		Configuration::deleteByName('BLOCKBANNER_DESC');
		return parent::uninstall();
	}

	public function hookDisplayTop($params)
	{
		if (!$this->isCached('blockbanner.tpl', $this->getCacheId()))
		{
			$imgname = Configuration::get('BLOCKBANNER_IMG', $this->context->language->id);

			if ($imgname && file_exists(_PS_MODULE_DIR_.$this->name.DIRECTORY_SEPARATOR.'img'.DIRECTORY_SEPARATOR.$imgname))
				$this->smarty->assign('banner_img', $this->context->link->protocol_content.Tools::getMediaServer($imgname).$this->_path.'img/'.$imgname);

			$this->smarty->assign(array(
				'banner_link' => Configuration::get('BLOCKBANNER_LINK', $this->context->language->id),
				'banner_desc' => Configuration::get('BLOCKBANNER_DESC', $this->context->language->id)
			));
		}

		return $this->display(__FILE__, 'blockbanner.tpl', $this->getCacheId());
	}

	public function hookDisplayBanner($params)
	{
		return $this->hookDisplayTop($params);
	}

	public function hookDisplayFooter($params)
	{
		return $this->hookDisplayTop($params);
	}

	public function hookDisplayHeader($params)
	{
		$this->context->controller->addCSS($this->_path.'blockbanner.css', 'all');
	}

	public function postProcess()
	{
		if (Tools::isSubmit('submitStoreConf'))
		{
			$languages = Language::getLanguages(false);
			$values = array();
			$update_images_values = false;

			foreach ($languages as $lang)
			{
				if (isset($_FILES['BLOCKBANNER_IMG_'.$lang['id_lang']])
					&& isset($_FILES['BLOCKBANNER_IMG_'.$lang['id_lang']]['tmp_name'])
					&& !empty($_FILES['BLOCKBANNER_IMG_'.$lang['id_lang']]['tmp_name']))
				{
					if ($error = ImageManager::validateUpload($_FILES['BLOCKBANNER_IMG_'.$lang['id_lang']], 4000000))
						return $error;
					else
					{
						$ext = substr($_FILES['BLOCKBANNER_IMG_'.$lang['id_lang']]['name'], strrpos($_FILES['BLOCKBANNER_IMG_'.$lang['id_lang']]['name'], '.') + 1);
						$file_name = md5($_FILES['BLOCKBANNER_IMG_'.$lang['id_lang']]['name']).'.'.$ext;

						if (!move_uploaded_file($_FILES['BLOCKBANNER_IMG_'.$lang['id_lang']]['tmp_name'], dirname(__FILE__).DIRECTORY_SEPARATOR.'img'.DIRECTORY_SEPARATOR.$file_name))
							return $this->displayError($this->l('An error occurred while attempting to upload the file.'));
						else
						{
							if (Configuration::hasContext('BLOCKBANNER_IMG', $lang['id_lang'], Shop::getContext())
								&& Configuration::get('BLOCKBANNER_IMG', $lang['id_lang']) != $file_name)
								@unlink(dirname(__FILE__).DIRECTORY_SEPARATOR.'img'.DIRECTORY_SEPARATOR.Configuration::get('BLOCKBANNER_IMG', $lang['id_lang']));

							$values['BLOCKBANNER_IMG'][$lang['id_lang']] = $file_name;
						}
					}

					$update_images_values = true;
				}

				$values['BLOCKBANNER_LINK'][$lang['id_lang']] = Tools::getValue('BLOCKBANNER_LINK_'.$lang['id_lang']);
				$values['BLOCKBANNER_DESC'][$lang['id_lang']] = Tools::getValue('BLOCKBANNER_DESC_'.$lang['id_lang']);
			}

			if ($update_images_values)
				Configuration::updateValue('BLOCKBANNER_IMG', $values['BLOCKBANNER_IMG']);

			Configuration::updateValue('BLOCKBANNER_LINK', $values['BLOCKBANNER_LINK']);
			Configuration::updateValue('BLOCKBANNER_DESC', $values['BLOCKBANNER_DESC']);

			$this->_clearCache('blockbanner.tpl');
			return $this->displayConfirmation($this->l('The settings have been updated.'));
		}
		return '';
	}

	public function getContent()
	{
		return $this->postProcess().$this->renderForm();
	}
	
	public function renderForm()
	{
		$fields_form = array(
			'form' => array(
				'legend' => array(
					'title' => $this->l('Settings'),
					'icon' => 'icon-cogs'
				),
				'input' => array(
					array(
						'type' => 'file_lang',
						'label' => $this->l('Top banner image'),
						'name' => 'BLOCKBANNER_IMG',
						'desc' => $this->l('Upload an image for your top banner. The recommended dimensions are 1170 x 65px if you are using the default theme.'),
						'lang' => true,
					),
					array(
						'type' => 'text',
						'lang' => true,
						'label' => $this->l('Banner Link'),
						'name' => 'BLOCKBANNER_LINK',
						'desc' => $this->l('Enter the link associated to your banner. When clicking on the banner, the link opens in the same window. If no link is entered, it redirects to the homepage.')
					),			
					array(
						'type' => 'text',
						'lang' => true,
						'label' => $this->l('Banner description'),
						'name' => 'BLOCKBANNER_DESC',
						'desc' => $this->l('Please enter a short but meaningful description for the banner.')
					)
				),
				'submit' => array(
					'title' => $this->l('Save')
				)
			),
		);

		$helper = new HelperForm();
		$helper->show_toolbar = false;
		$helper->table =  $this->table;
		$lang = new Language((int)Configuration::get('PS_LANG_DEFAULT'));
		$helper->default_form_language = $lang->id;
		$helper->module = $this;
		$helper->allow_employee_form_lang = Configuration::get('PS_BO_ALLOW_EMPLOYEE_FORM_LANG') ? Configuration::get('PS_BO_ALLOW_EMPLOYEE_FORM_LANG') : 0;
		$helper->identifier = $this->identifier;
		$helper->submit_action = 'submitStoreConf';
		$helper->currentIndex = $this->context->link->getAdminLink('AdminModules', false).'&configure='.$this->name.'&tab_module='.$this->tab.'&module_name='.$this->name;
		$helper->token = Tools::getAdminTokenLite('AdminModules');
		$helper->tpl_vars = array(
			'uri' => $this->getPathUri(),
			'fields_value' => $this->getConfigFieldsValues(),
			'languages' => $this->context->controller->getLanguages(),
			'id_language' => $this->context->language->id
		);

		return $helper->generateForm(array($fields_form));
	}
	
	public function getConfigFieldsValues()
	{
		$languages = Language::getLanguages(false);
		$fields = array();

		foreach ($languages as $lang)
		{
			$fields['BLOCKBANNER_IMG'][$lang['id_lang']] = Tools::getValue('BLOCKBANNER_IMG_'.$lang['id_lang'], Configuration::get('BLOCKBANNER_IMG', $lang['id_lang']));
			$fields['BLOCKBANNER_LINK'][$lang['id_lang']] = Tools::getValue('BLOCKBANNER_LINK_'.$lang['id_lang'], Configuration::get('BLOCKBANNER_LINK', $lang['id_lang']));
			$fields['BLOCKBANNER_DESC'][$lang['id_lang']] = Tools::getValue('BLOCKBANNER_DESC_'.$lang['id_lang'], Configuration::get('BLOCKBANNER_DESC', $lang['id_lang']));
		}

		return $fields;
	}
}