<?php

namespace phpcommon;

class Redis
{
    private $_host = '';
    private $_port = 0;
    private $_passwd = '';

    private $_conn = null;
    private $_result = null;

    public function __construct($configs){
        $this->_host = array_key_exists('host', $configs) ? $configs['host'] : $this->_host;
        $this->_port = array_key_exists('port', $configs) ? $configs['port'] : $this->_port;
        $this->_passwd = array_key_exists('passwd', $configs) ? $configs['passwd'] : $this->_passwd;
        $this->_redis = new \Redis();
        $this->_redis->connect($this->_host,
                               $this->_port);
        if (!empty($this->_passwd)) {
            $this->_redis->auth($this->_passwd);
        }
    }

    public function __destruct(){
        $this->_redis = null;
    }

    private function rawcommand() {
        $args = func_get_args();
        return call_user_func_array(array($this->_redis, 'rawCommand'), $args);
    }

    public function hget($key, $hash_key){
        return $this->_redis->hGet($key, $hash_key);
    }

    public function hlen($key){
        return $this->_redis->hLen($key);
    }

    public function hexists($key, $hash_key){
        return $this->_redis->hExists($key, $hash_key);
    }

    public function hdel($key, $hash_key){
        return $this->_redis->hDel($key, $hash_key);
    }

    public function hset($key, $hash_key, $value){
        return $this->_redis->hSet($key, $hash_key, $value);
    }

    public function get($key){
        return $this->_redis->get($key);
    }

    public function exists($key){
        return $this->_redis->exists($key);
    }

    public function del($key){
        return $this->_redis->del($key);
    }

    public function set($key, $value){
        return $this->_redis->set($key, $value);
    }

    public function pexpire($key, $mill_sec){
        return $this->_redis->pexpire($key, $mill_sec);
    }

    public function incrBy($key, $num){
        return $this->_redis->incrby($key, $num);
    }

    public function setNxPx($key, $val, $mill_sec) {
        return $this->rawcommand('SET', $key, $val, 'NX', 'PX', $mill_sec);
    }

    public function execScript($script, $args, $num_keys) {
        return $this->_redis->eval($script, $args, $num_keys);
    }

}

?>