<?php
/**
 * @category	Fishpig
 * @package		Fishpig_Bolt
 * @license		http://fishpig.co.uk/license.txt
 * @author		Ben Tideswell <help@fishpig.co.uk>
 */

class Fishpig_Bolt_Helper_Data extends Mage_Core_Helper_Abstract
{	
	/**
	 * Store the current store ID/code in the session
	 *
	 * @param Mage_Core_Mode_Store|null $store
	 * @return $this
	 */	
	public function setSessionData($store = null)
	{
		if (is_null($store)) {
			$store = Mage::app()->getStore();
		}

		Mage::getSingleton('core/session')
			->setWebsiteId($store->getWebsiteId())
			->setWebsiteCode($store->getWebsite()->getCode())
			->setStoreGroupId($store->getGroupId())
			->setStoreCode($store->getCode())
			->setStoreId($store->getId())
			->setCurrencyCode($store->getCurrencyCode())
			->setCartItemCount(
				Mage::getSingleton('checkout/cart')->getItemsCount()
			);

		return $this;
	}
	
	/**
	 * Refresh the cache files for the given store/url combinations
	 *
	 * @param array $urlsByStore
	 * @return $this
	 */
	public function refreshCache(array $urlsByStore)
	{
		Fishpig_Bolt_Cache::setCachePath(
			Mage::getStoreConfig('bolt/cache_file/path', 0)
		);
				
		foreach($urlsByStore as $storeId => $urls) {
			$currencies = explode(',', Mage::getStoreConfig('currency/options/allow', $storeId));

			foreach($urls as $url) {
				Fishpig_Bolt_Cache::deleteById(Fishpig_Bolt::createCacheId($url, $storeId));

				foreach($currencies as $currency) {
					Fishpig_Bolt_Cache::deleteById(Fishpig_Bolt::createCacheId($url, $storeId, $currency));
				}
			}
		}
		
		return $this;		
	}

	/**
	 * Refresh the config file
	 *
	 * @return array|false
	 */
	public function refreshConfig()
	{
		$file = Mage::getBaseDir('etc') . DS . 'bolt.config';

		if (Mage::app()->useCache('bolt')) {
			$container = array(
				'websites' => array(),
				'admin_route' => (string)Mage::getConfig()->getNode('admin/routers/adminhtml/args/frontName'),
				'use_cache' => (int)Mage::app()->useCache('bolt'),
			);
			
			$defaults = (array)Mage::app()->getConfig()->getNode('default/bolt')->asArray();
			$websites = Mage::getResourceModel('core/website_collection')->load();

			foreach($websites as $website) {
				$isDefaultStore = false;

				if (count(($groups = $website->getGroups())) > 0) {
					$container['websites'][$website->getId()] = array(
						'code' => $website->getCode(),
						'default_group_id' => $website->getDefaultGroupId(),
						'is_default' => $website->getIsDefault(),
						'groups' => array(),
					);
					
					if ($website->getIsDefault()) {
						$container['default_website_code'] = $website->getCode();
						$container['default_website_id'] = $website->getId();	
					}

					foreach($groups as $group) {
						$stores = Mage::getResourceModel('core/store_collection')
							->addFieldToFilter('group_id', $group->getId())
							->setOrder('sort_order', 'ASC')
							->load();

						if (count($stores) > 0) {
							$container['websites'][$website->getId()]['groups'][$group->getId()] = array(
								'default_store_id' => $group->getDefaultStoreId(),
								'stores' => array(),
							);
							
							foreach($stores as $store) {
								$buffer = array(
									'website_id' => $website->getId(),
									'website_code' => $website->getCode(),
									'store_group_id' => $group->getId(),
									'store_id' => $store->getId(),
									'store_code' => $store->getCode(),
									'base_url' => Mage::getUrl('', array('_store' => $store->getCode())),
									'currency_code' => $store->getCurrentCurrencyCode(),
									'is_default' => $group->getDefaultStoreId() === $store->getId(),
								);
								
								foreach($defaults as $area => $values) {
									foreach($values as $field => $value) {
										if (($configValue = trim(Mage::getStoreConfig('bolt/' . $area . '/' . $field, $store))) !== '') {
											$buffer[$area][$field] = $configValue;
										}
									}
								}
								
								if (isset($buffer['exclude']['uris'])) {
									$uris = array();
									
									foreach(unserialize($buffer['exclude']['uris']) as $uri) {
										$uris[] = array_shift($uri);
									}
									
									$buffer['exclude']['uris'] = serialize($uris);
								}

								$container['websites'][$website->getId()]['groups'][$group->getId()]['stores'][$store->getId()] = $buffer;
							}
						}
					}
					
					if (count($container['websites'][$website->getId()]['groups']) === 0) {
						unset($container['websites'][$website->getId()]);
					}
				}
			}

			@file_put_contents($file, serialize($container));
			
			return $container;
		}
		else {
			@unlink($file);
		}

		return false;
	}
	
	/**
	 * Retrieve the config file name and path
	 *
	 * @return string
	 */
	public function getConfigFile()
	{
		return Mage::getBaseDir('etc') . DS . 'bolt.config';
	}
	
	/**
	 * Determine whether the config file exists
	 *
	 * @return bool
	 */
	public function configFileExists()
	{
		return is_file($this->getConfigFile());
	}
}