<?php



/*

 * @copyright  Copyright (c) 2011 by  ESS-UA.

 */



class Ess_M2ePro_Model_Config_Abstract extends Ess_M2ePro_Model_Abstract

{

    const SORT_NONE = 0;

    const SORT_KEY_ASC = 1;

    const SORT_KEY_DESC = 2;

    const SORT_VALUE_ASC = 3;

    const SORT_VALUE_DESC = 4;



    // ########################################



    private $_ormConfig = '';

    private $_cacheData = array();



    // ########################################



    public function __construct()

    {

        $args = func_get_args();

        empty($args[0]) && $args[0] = array();

        $params = $args[0];



        if (empty($params['orm'])) {

            throw new Exception('ORM for config is not defined.');

        }



        $this->_ormConfig = $params['orm'];

        parent::__construct();

    }



    // ########################################



    public function getGlobalValue($key)

    {

        return $this->getValue(NULL, $key);

    }



    public function setGlobalValue($key, $value)

    {

        return $this->setValue(NULL, $key, $value);

    }



    public function deleteGlobalValue($key)

    {

        return $this->deleteValue(NULL, $key);

    }



    //----------------------------------------



    public function getAllGlobalValues($sort = self::SORT_NONE)

    {

        return $this->getAllValues(NULL,$sort);

    }



    public function deleteAllGlobalValues()

    {

        return $this->deleteAllValues(NULL);

    }



    // ########################################



    public function getGroupValue($group, $key)

    {

        $group = $this->prepareGroup($group);

        return $this->getValue($group, $key);

    }



    public function setGroupValue($group, $key, $value)

    {

        $group = $this->prepareGroup($group);

        return $this->setValue($group, $key, $value);

    }



    public function deleteGroupValue($group, $key)

    {

        $group = $this->prepareGroup($group);

        return $this->deleteValue($group, $key);

    }



    //----------------------------------------



    public function getAllGroupValues($group, $sort = self::SORT_NONE)

    {

        $group = $this->prepareGroup($group);

        return $this->getAllValues($group,$sort);

    }



    public function deleteAllGroupValues($group)

    {

        $group = $this->prepareGroup($group);

        return $this->deleteAllValues($group);

    }



    // ########################################



    private function getValue($group, $key)

    {

        $this->loadCacheData();



        if (!is_null($group) && empty($group)) {

            return NULL;

        }



        if (empty($key)) {

            return NULL;

        }



        return $this->getCacheValue($group, $key);

    }



    private function setValue($group, $key, $value)

    {

        $this->loadCacheData();



        if (!is_null($group) && empty($group)) {

            return false;

        }



        if (empty($key)) {

            return false;

        }



        $temp = $this->getCollection();



        if (is_null($group)) {

            $temp->addFieldToFilter('`group`', array('null' => true));

        } else {

            $temp->addFieldToFilter('`group`', $group);

        }



        $temp->addFieldToFilter('`key`', $key);

        $temp = $temp->toArray();



        if (count($temp['items']) > 0) {



            $existItem = $temp['items'][0];



            Mage::getModel($this->_ormConfig)

                         ->load($existItem['id'])

                         ->addData(array('value'=>$value))

                         ->save();

        } else {



            Mage::getModel($this->_ormConfig)

                         ->setData(array('group'=>$group,'key'=>$key,'value'=>$value))

                         ->save();

        }



        return $this->setCacheValue($group,$key,$value);

    }



    private function deleteValue($group, $key)

    {

        $this->loadCacheData();



        if (!is_null($group) && empty($group)) {

            return false;

        }



        if (empty($key)) {

            return false;

        }



        $temp = $this->getCollection();



        if (is_null($group)) {

            $temp->addFieldToFilter('`group`', array('null' => true));

        } else {

            $temp->addFieldToFilter('`group`', $group);

        }



        $temp->addFieldToFilter('`key`', $key);

        $temp = $temp->toArray();



        if (count($temp['items']) <= 0) {

            return false;

        }



        $existItem = $temp['items'][0];

        Mage::getModel($this->_ormConfig)->setId($existItem['id'])->delete();



        return $this->deleteCacheValue($existItem['group'], $existItem['key']);

    }



    // ----------------------------------------



    private function getAllValues($group = NULL, $sort = self::SORT_NONE)

    {

        $this->loadCacheData();



        if (!is_null($group) && empty($group)) {

            return array();

        }



        $result = array();



        $temp = $this->getCollection();



        if (is_null($group)) {

            $temp->addFieldToFilter('`group`', array('null' => true));

        } else {

            $temp->addFieldToFilter('`group`', $group);

        }



        $temp = $temp->toArray();



        foreach ($temp['items'] as $item) {

            $result[$item['key']] = $item['value'];

        }



        $this->sortResult($result,$sort);



        return $result;

    }



    private function deleteAllValues($group = NULL)

    {

        $this->loadCacheData();



        if (!is_null($group) && empty($group)) {

            return false;

        }



        $temp = $this->getCollection();



        if (is_null($group)) {

            $temp->addFieldToFilter('`group`', array('null' => true));

        } else {

            $temp->addFieldToFilter('`group`', array("like"=>$group.'%'));

        }



        $temp = $temp->toArray();



        foreach ($temp['items'] as $item) {

            Mage::getModel($this->_ormConfig)->setId($item['id'])->delete();

            $this->deleteCacheValue($item['group'], $item['key']);

        }



        return true;

    }



    // ########################################



    private function prepareGroup($group = NULL)

    {

        if (is_null($group)) {

            return NULL;

        }



        if (empty($group)) {

            return false;

        }



        return '/'.trim($group,'/').'/';

    }



    private function sortResult(&$array, $sort)

    {

        switch ($sort)

        {

            case self::SORT_KEY_ASC:

                ksort($array);

                break;



            case self::SORT_KEY_DESC:

                krsort($array);

                break;



            case self::SORT_VALUE_ASC:

                asort($array);

                break;



            case self::SORT_VALUE_DESC:

                arsort($array);

                break;

        }

    }



    //-----------------------------------------



    private function getCacheValue($group = NULL, $key)

    {

        empty($group) && $group = 'global';



        if (empty($key)) {

            return NULL;

        }



        $group = strtolower($group);

        $key = strtolower($key);



        if (isset($this->_cacheData[$group][$key])) {

            return $this->_cacheData[$group][$key];

        }



        return NULL;

    }



    private function setCacheValue($group = NULL, $key, $value)

    {

        empty($group) && $group = 'global';



        if (empty($key)) {

            return false;

        }



        $group = strtolower($group);

        $key = strtolower($key);



        if (!isset($this->_cacheData[$group])) {

            $this->_cacheData[$group] = array();

        }



        $this->_cacheData[$group][$key] = $value;

        $this->updatePermanentCacheData();



        return true;

    }



    private function deleteCacheValue($group = NULL, $key)

    {

        empty($group) && $group = 'global';



        if (empty($key)) {

            return false;

        }



        $group = strtolower($group);

        $key = strtolower($key);



        unset($this->_cacheData[$group][$key]);

        $this->updatePermanentCacheData();



        return true;

    }



    //-----------------------------------------



    private function loadCacheData()

    {

        if (!empty($this->_cacheData)) {

            return;

        }



        $key = $this->_ormConfig.'_data';

        $this->_cacheData = Mage::helper('M2ePro')->getCacheValue($key);



        if ($this->_cacheData === false || Mage::helper('M2ePro/Server')->isDeveloper()) {

            $this->_cacheData = $this->buildCacheData();

            $this->updatePermanentCacheData();

        }

    }



    private function buildCacheData()

    {

        $tempData = $this->getCollection()->toArray();



        $newCache = array();

        foreach ($tempData['items'] as $item) {



            if (empty($item['group'])) {

                $item['group'] = 'global';

            }



            $item['group'] = strtolower($item['group']);

            $item['key'] = strtolower($item['key']);



            if (!isset($newCache[$item['group']])) {

                $newCache[$item['group']] = array();

            }



            $newCache[$item['group']][$item['key']] = $item['value'];

        }



        return $newCache;

    }



    private function updatePermanentCacheData()

    {

        $key = $this->_ormConfig.'_data';

        Mage::helper('M2ePro')->setCacheValue($key,$this->_cacheData,array(),60*60);

    }



    // ########################################

}