<?php
/*
* 2007-2011 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>o
*  @copyright  2007-2011 PrestaShop SA
*  @version  Release: $Revision: 7466 $
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

class AdminModulesPositionsControllerCore extends AdminController
{
	private $displayKey = 0;

	public function postProcess()
	{
		// Getting key value for display
		if (Tools::getValue('show_modules') AND strval(Tools::getValue('show_modules')) != 'all')
			$this->displayKey = (int)(Tools::getValue('show_modules'));

		// Change position in hook
		if (array_key_exists('changePosition', $_GET))
		{
			if ($this->tabAccess['edit'] === '1')
		 	{
				$id_module = (int)(Tools::getValue('id_module'));
				$id_hook = (int)(Tools::getValue('id_hook'));
				$module = Module::getInstanceById($id_module);
				if (Validate::isLoadedObject($module))
				{
					$module->updatePosition($id_hook, (int)(Tools::getValue('direction')));
					Tools::redirectAdmin(self::$currentIndex.($this->displayKey ? '&show_modules='.$this->displayKey : '').'&token='.$this->token);
				}
				else
					$this->_errors[] = Tools::displayError('module cannot be loaded');
			}
			else
				$this->_errors[] = Tools::displayError('You do not have permission to edit here.');
		}

		// Add new module in hook
		elseif (Tools::isSubmit('submitAddToHook'))
		{
		 	if ($this->tabAccess['add'] === '1')
			{
				// Getting vars...
				$id_module = (int)(Tools::getValue('id_module'));
				$module = Module::getInstanceById($id_module);
				$id_hook = (int)(Tools::getValue('id_hook'));
				$hook = new Hook($id_hook);

				if (!$id_module OR !Validate::isLoadedObject($module))
					$this->_errors[] = Tools::displayError('module cannot be loaded');
				elseif (!$id_hook OR !Validate::isLoadedObject($hook))
					$this->_errors[] = Tools::displayError('Hook cannot be loaded.');
				elseif (Hook::getModulesFromHook($id_hook, $id_module))
					$this->_errors[] = Tools::displayError('This module is already transplanted to this hook.');
				elseif (!$module->isHookableOn($hook->name))
					$this->_errors[] = Tools::displayError('This module can\'t be transplanted to this hook.');
				// Adding vars...
				else
				{
					if (!$module->registerHook($hook->name, Context::getContext()->shop->getListOfID()))
						$this->_errors[] = Tools::displayError('An error occurred while transplanting module to hook.');
					else
					{
						$exceptions = Tools::getValue('exceptions');
						$exceptions = (isset($exceptions[0])) ? $exceptions[0] : array();
						$exceptions = explode(',', str_replace(' ', '', $exceptions));

						foreach ($exceptions AS $except)
							if (!Validate::isFileName($except))
								$this->_errors[] = Tools::displayError('No valid value for field exceptions');

						if (!$this->_errors && !$module->registerExceptions($id_hook, $exceptions, Context::getContext()->shop->getListOfID()))
							$this->_errors[] = Tools::displayError('An error occurred while transplanting module to hook.');
					}

					if (!$this->_errors)
						Tools::redirectAdmin(self::$currentIndex.'&conf=16'.($this->displayKey ? '&show_modules='.$this->displayKey : '').'&token='.$this->token);
				}
			}
			else
				$this->_errors[] = Tools::displayError('You do not have permission to add here.');
		}

		// Edit module from hook
		elseif (Tools::isSubmit('submitEditGraft'))
		{
		 	if ($this->tabAccess['add'] === '1')
			{
				// Getting vars...
				$id_module = (int)(Tools::getValue('id_module'));
				$module = Module::getInstanceById($id_module);
				$id_hook = (int)(Tools::getValue('id_hook'));
				$hook = new Hook($id_hook);

				if (!$id_module OR !Validate::isLoadedObject($module))
					$this->_errors[] = Tools::displayError('module cannot be loaded');
				elseif (!$id_hook OR !Validate::isLoadedObject($hook))
					$this->_errors[] = Tools::displayError('Hook cannot be loaded.');
				else
				{
					$exceptions = Tools::getValue('exceptions');
					if (is_array($exceptions))
					{
						foreach ($exceptions as $id => $exception)
						{
							$exception = explode(',', str_replace(' ', '', $exception));

							// Check files name
							foreach ($exception AS $except)
								if (!Validate::isFileName($except))
									$this->_errors[] = Tools::displayError('No valid value for field exceptions');

							$exceptions[$id] = $exception;
						}

						// Add files exceptions
						if (!$module->editExceptions($id_hook, $exceptions))
							$this->_errors[] = Tools::displayError('An error occurred while transplanting module to hook.');

						if (!$this->_errors)
							Tools::redirectAdmin(self::$currentIndex.'&conf=16'.($this->displayKey ? '&show_modules='.$this->displayKey : '').'&token='.$this->token);
					}
					else
					{
						$exceptions = explode(',', str_replace(' ', '', $exceptions));

						// Check files name
						foreach ($exceptions AS $except)
							if (!Validate::isFileName($except))
								$this->_errors[] = Tools::displayError('No valid value for field exceptions');

						// Add files exceptions
						if (!$module->editExceptions($id_hook, $exceptions, Context::getContext()->shop->getListOfID()))
							$this->_errors[] = Tools::displayError('An error occurred while transplanting module to hook.');
						else
							Tools::redirectAdmin(self::$currentIndex.'&conf=16'.($this->displayKey ? '&show_modules='.$this->displayKey : '').'&token='.$this->token);
					}
				}
			}
			else
				$this->_errors[] = Tools::displayError('You do not have permission to add here.');
		}

		// Delete module from hook
		elseif (array_key_exists('deleteGraft', $_GET))
		{
		 	if ($this->tabAccess['delete'] === '1')
		 	{
				$id_module = (int)(Tools::getValue('id_module'));
				$module = Module::getInstanceById($id_module);
				$id_hook = (int)(Tools::getValue('id_hook'));
				$hook = new Hook($id_hook);
				if (!Validate::isLoadedObject($module))
					$this->_errors[] = Tools::displayError('module cannot be loaded');
				elseif (!$id_hook OR !Validate::isLoadedObject($hook))
					$this->_errors[] = Tools::displayError('Hook cannot be loaded.');
				else
				{
					if (!$module->unregisterHook($id_hook, Context::getContext()->shop->getListOfID()) OR !$module->unregisterExceptions($id_hook, Context::getContext()->shop->getListOfID()))
						$this->_errors[] = Tools::displayError('An error occurred while deleting module from hook.');
					else
						Tools::redirectAdmin(self::$currentIndex.'&conf=17'.($this->displayKey ? '&show_modules='.$this->displayKey : '').'&token='.$this->token);
				}
			}
			else
				$this->_errors[] = Tools::displayError('You do not have permission to delete here.');
		}
		elseif (Tools::isSubmit('unhookform'))
		{
			if (!($unhooks = Tools::getValue('unhooks')) OR !is_array($unhooks))
				$this->_errors[] = Tools::displayError('Select a module to unhook.');
			else
			{
				foreach ($unhooks as $unhook)
				{
					$explode = explode('_', $unhook);
					$id_hook = $explode[0];
					$id_module = $explode[1];
					$module = Module::getInstanceById((int)($id_module));
					$hook = new Hook((int)($id_hook));
					if (!Validate::isLoadedObject($module))
						$this->_errors[] = Tools::displayError('module cannot be loaded');
					elseif (!$id_hook OR !Validate::isLoadedObject($hook))
						$this->_errors[] = Tools::displayError('Hook cannot be loaded.');
					else
					{
						if (!$module->unregisterHook((int)($id_hook)) OR !$module->unregisterExceptions((int)($id_hook)))
							$this->_errors[] = Tools::displayError('An error occurred while deleting module from hook.');
					}
				}
				if (!sizeof($this->_errors))
					Tools::redirectAdmin(self::$currentIndex.'&conf=17'.($this->displayKey ? '&show_modules='.$this->displayKey : '').'&token='.$this->token);
			}
		}
	}

	public function initContent()
	{
		if (array_key_exists('addToHook', $_GET) OR array_key_exists('editGraft', $_GET) OR (Tools::isSubmit('submitAddToHook') AND $this->_errors))
		{
			$this->display = 'edit';
			$this->content .= $this->renderForm();
		}
		else
			$this->content .= $this->initMain();

		$this->context->smarty->assign(array(
			'content' => $this->content
		));
	}

	public function initMain()
	{
		// Init toolbar
		$this->initToolbarTitle();

		$admin_dir = basename(_PS_ADMIN_DIR_);
		$modules = Module::getModulesInstalled();

		$assoc_modules_id = array();
		foreach ($modules as $module)
			if ($tmpInstance = Module::getInstanceById((int)$module['id_module']))
			{
				// We want to be able to sort modules by display name
				$module_instances[$tmpInstance->displayName] = $tmpInstance;
				// But we also want to associate hooks to modules using the modules IDs
				$assoc_modules_id[(int)$module['id_module']] = $tmpInstance->displayName;
			}
		ksort($module_instances);
		$hooks = Hook::getHooks(!(int)(Tools::getValue('hook_position')));
		foreach ($hooks as $key => $hook)
		{
			// Get all modules for this hook or only the filtered module
			$hooks[$key]['modules'] = Hook::getModulesFromHook($hook['id_hook'], $this->displayKey);
			$hooks[$key]['module_count'] = count($hooks[$key]['modules']);
			// If modules were found, link to the previously created Module instances
			if (is_array($hooks[$key]['modules']) && !empty($hooks[$key]['modules']))
				foreach($hooks[$key]['modules'] as $module_key => $module)
					$hooks[$key]['modules'][$module_key]['instance'] = $module_instances[$assoc_modules_id[$module['id_module']]];
		}

		$this->addJqueryPlugin("tablednd");

		$this->toolbar_btn['save'] = array(
			'href' => self::$currentIndex.'&addToHook'.($this->displayKey ? '&show_modules='.$this->displayKey : '').'&token='.$this->token,
			'desc' => $this->l('Transplant a module')
		);

		$this->context->smarty->assign(array(
			'show_toolbar' => true,
			'toolbar_btn' => $this->toolbar_btn,
			'title' => $this->toolbar_title,
			'toolbar_fix' => 'false',
			'token' => $this->token,
			'url_show_modules' => self::$currentIndex.'&token='.$this->token.'&show_modules=',
			'modules' => $module_instances,
			'url_show_invisible' => self::$currentIndex.'&token='.$this->token.'&show_modules='.(int)(Tools::getValue('show_modules')).'&hook_position=',
			'hook_position' => Tools::getValue('hook_position'),
			'live_edit' => Shop::isFeatureActive() && $this->context->shop->getContextType() != Shop::CONTEXT_SHOP,
			'url_live_edit' => $this->context->link->getPageLink('index', false, null, 'live_edit&ad='.$admin_dir.'&liveToken='.sha1($admin_dir._COOKIE_KEY_).((Shop::isFeatureActive()) ? '&id_shop='.Context::getContext()->shop->getID() : '')),
			'display_key' => $this->displayKey,
			'hooks' => $hooks,
			'url_submit' => self::$currentIndex.'&token='.$this->token,
			'can_move' => (Shop::isFeatureActive() && $this->context->shop->getContextType() != Shop::CONTEXT_SHOP) ? false : true,
		));

		return $this->context->smarty->fetch('modules_positions/list_modules.tpl');
	}

	public function renderForm()
	{
		// Init toolbar
		$this->initToolbarTitle();
		// toolbar (save, cancel, new, ..)
		$this->initToolbar();
		$id_module = (int)(Tools::getValue('id_module'));
		$id_hook = (int)(Tools::getValue('id_hook'));
		if (Tools::isSubmit('editGraft'))
		{
			// Check auth for this page
			if (!$id_module || !$id_hook)
				Tools::redirectAdmin(self::$currentIndex . '&token='.$this->token);

			$sql = 'SELECT id_module
					FROM '._DB_PREFIX_.'hook_module
					WHERE id_module = '.$id_module.'
						AND id_hook = '.$id_hook.'
						AND id_shop IN('.implode(', ', Context::getContext()->shop->getListOfID()).')';
			if (!Db::getInstance()->getValue($sql))
				Tools::redirectAdmin(self::$currentIndex . '&token='.$this->token);

			$slModule = Module::getInstanceById($id_module);
			$exceptsList = $slModule->getExceptions($id_hook, true);
			$exceptsDiff = false;
			$excepts = '';
			if ($exceptsList)
			{
				$first = current($exceptsList);
				foreach ($exceptsList as $k => $v)
					if (array_diff($v, $first) || array_diff($first, $v))
						$exceptsDiff = true;

				if (!$exceptsDiff)
					$excepts = implode(', ', $first);
			}
		}
		else
		{
			$exceptsDiff = false;
			$exceptsList = Tools::getValue('exceptions', array(array()));
		}
		$modules = Module::getModulesInstalled(0);

		$instances = array();
		foreach ($modules AS $module)
			if ($tmpInstance = Module::getInstanceById($module['id_module']))
				$instances[$tmpInstance->displayName] = $tmpInstance;
		ksort($instances);
		$modules = $instances;
		$hooks = Hook::getHooks(0);

		$exception_list_diff = array();
		foreach ($exceptsList as $shopID => $fileList)
			$exception_list_diff[] = $this->displayModuleExceptionList($fileList, $shopID);

		$tpl = $this->context->smarty->createTemplate('modules_positions/form.tpl');
		$tpl->assign(array(
			'url_submit' => self::$currentIndex.'&token='.$this->token,
			'edit_graft' => Tools::isSubmit('editGraft'),
			'id_module' => (int)Tools::getValue('id_module'),
			'id_hook' => (int)Tools::getValue('id_hook'),
			'show_modules' => Tools::getValue('show_modules'),
			'hooks' => $hooks,
			'exception_list' => $this->displayModuleExceptionList(array_shift($exceptsList), 0),
			'exception_list_diff' => $exception_list_diff,
			'except_diff' => isset($exceptsDiff) ? $exceptsDiff : null,
			'display_key' => $this->displayKey,
			'modules' => $modules,
			'show_toolbar' => true,
			'toolbar_btn' => $this->toolbar_btn,
			'title' => $this->toolbar_title,
			'table' => 'hook_module',
		));

		return $tpl->fetch();
	}

	public function displayModuleExceptionList($fileList, $shopID)
	{
		if (!is_array($fileList))
			$fileList = ($fileList) ? array($fileList) : array();

		$content = '<input type="text" name="exceptions['.$shopID.']" size="40" value="' . implode(', ', $fileList) . '" id="em_text_'.$shopID.'">';
		if ($shopID)
			$content .= ' ('.Shop::getInstance($shopID)->name.')';
		$content .= '<br /><select id="em_list_'.$shopID.'">';

		// @todo do something better with controllers
		$controllers = Dispatcher::getControllers(_PS_FRONT_CONTROLLER_DIR_);
		ksort($controllers);
		foreach ($controllers as $k => $v)
		{
			$content .= '<option value="'.$k.'">'.$k.'</option>';
		}
		$content .= '</select> <input type="button" class="button" value="'.$this->l('Add').'" onclick="position_exception_add('.$shopID.')" />
				<input type="button" class="button" value="'.$this->l('Remove').'" onclick="position_exception_remove('.$shopID.')" /><br /><br />';

		return $content;
	}
}