<?php

namespace loyalsoft;

/*
 * 操作内存数据库 Memcache工具类
 * version:
 *     2016.4.12  (gwang)改造出一个基类
 *     2016.4.12  以前的记录无
 */

/**
 * Description of MemCacheUtil
 * CMem工具类[APHP三大操作单元之一]
 * @deprecated since version 2017.08.08
 * @author jgao,gwang
 */
class CMemUtil extends CMemBase
{

    //put your code here
    public $mem = 0;
    public $keyDic = null;

    public function conn($host, $port, $pwd = "")
    {
        $this->keyDic = new \stdClass();
        $this->mem = new Memcache();
        return $this->mem->connect($host, $port);
    }

    /**
     *
     * @param string $key
     * @return any
     */
    public function get($key)
    {
        $cas_token = "";
        if ($GLOBALS['mem_version'] == "3.0") {
            $result = memcache_get($this->mem, $key, null, $cas_token);
        } else {
            $result = memcache_get($this->mem, $key);
        }
        if (!$result || $result == "" || $result == null) {
            return null;
        }
        if ($GLOBALS['mem_version'] == "3.0") {
            $this->keyDic->$key = $cas_token;
        }
        return JsonUtil::decode($result);
    }

    public function set($key, $value, $ts = 0)
    {
        if ($value == null || $value == "") {
            return false;
        }
        return memcache_set($this->mem, $key, JsonUtil::encode($value), MEMCACHE_COMPRESSED, $ts);
    }

    /**
     * 取没有进行json编码的数据
     * @param type $key
     * @return string
     */
    public function getWithoutJson($key)
    {
        $cas_token = "";
        if ($GLOBALS['mem_version'] == "3.0") {
            $result = memcache_get($this->mem, $key, null, $cas_token);
        } else {
            $result = memcache_get($this->mem, $key);
        }
        if (!$result || $result == "" || $result == null) {
            return null;
        }
        if ($GLOBALS['mem_version'] == "3.0") {
            $this->keyDic->$key = $cas_token;
        }
        return $result;
    }

    /**
     * 设置值,内部不加 json_encode
     * @param string $key
     * @param string $value
     * @param int $ts expirets Ps.当ts的值大于一个月的时候将被视为时间戳
     * @return boolean
     */
    public function setWithoutJson($key, $value, $ts = 0)
    {
        if ($value == null || $value == "") {
            return false;
        }
        return memcache_set($this->mem, $key, JsonUtil::encode($value), MEMCACHE_COMPRESSED, $ts);
    }

    public function add($key, $value, $ts = 0)
    {
        if ($value == null || $value == "") {
            return false;
        }
        return memcache_add($this->mem, $key, JsonUtil::encode($value), MEMCACHE_COMPRESSED, $ts);
    }

    public function replace($key, $value, $ts = 0)
    {
        if ($value == null || $value == "") {
            return false;
        }
        return memcache_replace($this->mem, $key, JsonUtil::encode($value), MEMCACHE_COMPRESSED, $ts);
    }

    public function delete($key)
    {
        return memcache_delete($this->mem, $key);
    }

    public function increment($key)
    {
        return memcache_increment($this->mem, $key);
    }

    public function getMulti($keys)
    {
        $retArray = array();
        foreach ($keys as $key) {
            $result = $this->get($key);
            if ($result == null) {
                $retArray[] = null;
            } else {
                $retArray[] = $result;
            }
        }
        return $retArray;
    }

    public function setMutlti($dict, $expireTs = 0)
    {
        ;
    }

    public function cas($key, $value, $ts)
    {
        if ($GLOBALS['mem_version'] == "3.0") {
            if ($value == null || $value == "") {
                return false;
            }
            if (!property_exists($this->keyDic, $key)) {
                return memcache_set($this->mem, $key, JsonUtil::encode($value), MEMCACHE_COMPRESSED, $ts);
            }
            $cas_token = $this->keyDic->$key;
            return memcache_cas($this->mem, $key, JsonUtil::encode($value), MEMCACHE_COMPRESSED, $ts, $cas_token);
        } else {
            return $this->set($key, $value, $ts);
        }
    }

    public function copy($surKey, $desKey)
    {
        return $this->set($desKey, $this->get($surKey));
    }

    public function close()
    {
        return memcache_close($this->mem);
    }

}