<?php
/*
|--------------------------------------------------------------------------
| aliyun.php 阿里云
|--------------------------------------------------------------------------
*/
namespace Token\Lib;

use Dever;

class Aliyun
{
	/**
	 * config
	 *
	 * @var array
	 */
	private $config;
	
	/**
	 * project
	 *
	 * @var string
	 */
	private $project;
	
	/**
	 * 构造函数　初始化
	 * 
	 * @return mixed
	 */
	public function __construct($project = false)
	{
		if (!$project) {
			$appid = Dever::input('appid');
			if ($appid) {
				$project = Dever::db('token/project')->one(array('option_type' => $type, 'option_appid' => $appid));
			}

			if (!$project) {
				$project = Dever::input('project', 1);
			}
		}

		if (is_numeric($project)) {
			$project = Dever::db('token/project')->one(array('option_type' => 8, 'option_id' => $project));
		}

		if (!$project) {
			Dever::alert('project is not exits!');
		}

		$this->project = $project;
	}
	
	/**
	 * 获取当前站点的配置
	 * 
	 * @return mixed
	 */
	public function project()
	{
		return $this->project;
	}

	/**
	 * 获取当前基本的配置
	 * 
	 * @return mixed
	 */
	public function config()
	{
		return $this->config;
	}

	/**
	 * 更新数据库
	 * state true为强制更新数据库中的token数据
	 * 
	 * @return mixed
	 */
	private function save($type = 'token', $state = false, $interval = 4000)
	{
		$db = Dever::db('token/token');
		
		$where['project_id'] = $this->project['id'];
		$info = $db->one($where);

		$update = false;
			
		if ($state == true) {
			$update = true;
		} elseif ($info && time() - $info['mdate'] >= $info['expires']) {
			$update = true;
		} elseif($info) {
			return $info;
		}
		if (!$info) {
			$update = false;
		}

		Dever::load('aliyun/');

		\AlibabaCloud\Client\AlibabaCloud::accessKeyClient($this->project['appid'],$this->project['secret'])->regionId("cn-shanghai")->asDefaultClient();

		$response = \AlibabaCloud\Client\AlibabaCloud::nlsCloudMeta()->v20180518()->createToken()->request();
		
		if ($response && isset($response['Token']) && $response['Token']) {
			$data['value'] = $response['Token']['Id'];
			$data['expires'] = $response['Token']['ExpireTime'];
			$data['project_id'] = $this->project['id'];
			$expires = $data['expires'] - time() - $interval;
			if ($expires <= 0) {
				$data['expires'] = $data['expires'] - 300;
			} else {
				$data['expires'] = $expires;
			}
			if ($update == true) {
				$data['where_id'] = $info['id'];
				$id = $info['id'];
				$db->update($data);
			} else {
				$id = $db->insert($data);
			}
			$data['id'] = $id;
		} elseif($info && $info['value']) {
			$data = $info;
			$data['value'] = $info['value'];
		}

		return $data;
	}

	/**
	 * 获取最新的token
	 * 
	 * @return mixed
	 */
	public function token($state = false)
	{
		$result = $this->save('token', $state);
		return $result['value'];
	}
}