<?php


namespace app\controller\api\util;


use think\facade\Cache;
use think\facade\Log;

class Signature
{
    private static $signKey = 'tdba@86868#';
    private static $thirdsignKey = 'tdyl@86868';

    /**
     * 二维数组根据某个字段排序
     * @param array $array 要排序的数组
     * @param string $keys 要排序的键字段
     * @param string $sort 排序类型  SORT_ASC     SORT_DESC
     * @return array 排序后的数组
     */
    static function arrSort($array, $keys, $sort = SORT_DESC)
    {
        $keysValue = [];
        foreach ($array as $k => $v) {
            $keysValue[$k] = $v[$keys];
        }
        array_multisort($keysValue, $sort, $array);
        return $array;
    }

    /** 校验sign
     * @param $data
     * @return false
     */
    static function checkSign($data)
    {
        if (empty($data['sign'])) {
            return false;
        }
        $originalSign = $data['sign'];
        unset($data['sign']);
        ksort($data);
        $params = '';
        foreach ($data as $key => $value) {
            $params .= '&' . $key . '=' . $value;
        }
        $params = ltrim($params, '&');
        $sign = md5($params . '&signKey=' . self::$signKey);
        Log::channel("gong")->info("参数sign：" . $originalSign . '，校验生成sign' . $sign);
        if ($originalSign != $sign) {
            return false;
        }
        return true;
    }

    /** 校验sign
     * @param $data
     * @return false
     */
    static function thirdCheckSign($data,$header)
    {
        if (empty($header['sign'])) {
            return false;
        }
        $originalSign = $header['sign'];
        $timestamp = $header['timestamp'];
        if (abs($timestamp - time()) > 10) return false;
        ksort($data);
        $params = '';
        foreach ($data as $key => $value) {
            $params .= '&' . $key . '=' . $value;
        }
        $params = ltrim($params, '&');
        $sign = strtoupper(md5($params . '&signKey=' . self::$thirdsignKey . '&timestamp=' . $timestamp));
        Log::channel("gong")->info("参数sign：" . $originalSign . '，校验生成sign' . $sign);
        if ($originalSign != $sign) {
            return false;
        }
        $redis = Cache::store('redis')->handler();
        if($redis->get('thirdCheckSign:'.$originalSign)){
            return false;
        }
        $redis->set('thirdCheckSign:'.$originalSign,3600);
        return true;
    }
}