<?php

namespace app\api\controller;

use app\common\controller\Api;
use think\Db;
use app\common\library\Transaction;
/**
 * 充值配置与充值订单
 */
class Payios extends Api
{
    protected $noNeedLogin = ['auto_renewal_vip_notify'];
    protected $noNeedRight = ['*'];

    //vip ios用的
    public function vip_config_ios(){
        $list = Db::name('payvip_config_ios')->field('id,money,days,title,info,bundle_id,is_lianxu')->where('is_show',1)->order('weight asc,id asc')->select();
        $data['vipconfig'] = $list;
        $data['vip_endtime'] = model('wallet')->getWallet($this->auth->id,'vip_endtime');
        $data['is_vip'] = $data['vip_endtime'] > time() ? 1 : 0;
        $data['avatar'] = localpath_to_netpath($this->auth->avatar);
        $this->success('success',$data);
    }

    //vip用的，创建订单
    public function vip_recharge_ios(){
        $rc_id = input('rc_id',0);
        $platform = 'app';
        $uid = $this->auth->id;

        if(!$rc_id){
            $this->error('请选择会员套餐');
        }

        if(!$this->user_auth_limit()){
            $this->error('请先完成实名认证');
        }

        //赋值money
        $recharge_config = Db::name('payvip_config_ios')->where('id',$rc_id)->find();
        $money = $recharge_config['money'];

        if($money<=0)
        {
            $this->error('支付金额必须大于0');
        }
        if($money > 10000){
            $this->error('支付金额太大');
        }

        //创建订单
        $data = [];
        $data['user_id'] = $uid;
        $data['out_trade_no'] = createUniqueNo('V',$uid); // 数据库订单号加密
        $data['order_amount'] = $money;
        $data['createtime'] = time();

        $data['pay_type'] = 'ios';
        $data['platform'] = $platform;
        $data['order_status'] = 0;
        $data['table_name'] = 'vip_recharge';
        $data['table_id'] = 0;
        $data['args'] = json_encode(['days'=>$recharge_config['days']]);
        $data['bundle_id'] = $recharge_config['bundle_id'];
        $data['is_lianxu'] = $recharge_config['is_lianxu'];

        $orderid = Db::name('pay_order')->insertGetId($data);

        $this->success('success',$data['out_trade_no']);
    }


////////////////////////////////

    //金币充值
    public function gold_config_ios(){
        $list = Db::name('paygold_webcon_ios')->field('id,money,gold,bundle_id')->where('is_show',1)->order('weigh asc,id asc')->select();
        $data['goldconfig'] = $list;

        $wallet = model('wallet')->getWallet($this->auth->id);
        $data['wallet'] = $wallet;
        $data['money_to_gold'] = config('site.money_to_gold');
        $this->success('success',$data);
    }

    //充值金币 创建订单
    public function gold_recharge_ios(){

        $rc_id     = input_post('rc_id',0);
        $pay_type  = 'ios';
        $platform  = 'app';
        $uid = $this->auth->id;

        if(!$rc_id){
            $this->error('请选择充值金额');
        }

        if(!$this->user_auth_limit()){
            $this->error('请先完成实名认证');
        }

        //赋值money
        $recharge_config = Db::name('paygold_webcon_ios')->where('id',$rc_id)->find();
        $money = $recharge_config['money'] ?: 0;
        $gold  = $recharge_config['gold'] ?: 0;


        //
        if($money<=0)
        {
            $this->error('支付金额必须大于0');
        }
        if($money > 10000){
            $this->error('支付金额太大');
        }

        //创建订单
        $data['user_id'] = $uid;
        $data['out_trade_no'] = createUniqueNo('P',$uid); // 数据库订单号加密
        $data['order_amount'] = $money;
        $data['createtime'] = time();

        $data['pay_type'] = $pay_type;
        $data['platform'] = $platform;
        $data['order_status'] = 0;
        $data['table_name'] = 'gold_recharge';
        $data['table_id'] = 0;
        $data['args'] = json_encode(['gold'=>$gold]);
        $data['bundle_id'] = $recharge_config['bundle_id'];

        $orderid = Db::name('pay_order')->insertGetId($data);

        $this->success('success',$data['out_trade_no']);
    }

////////////////////////////////////////

    //订阅信息处理，续订情况下，单独分支方法
    public function expires(){

        //苹果订阅的验证收据
        $original_transaction_id = input('original_transaction_id','','trim');
        $receipt_data = input('apple_receipt', '', 'trim');
        $transaction_id = input('transaction_id', '', 'trim');
        $out_trade_no = input('out_trade_no', '', 'trim');

        filePut("\r\n\r\n".'新请求VIP订阅');
        $prefix = 'iosVIP订阅登录user_id:'.$this->auth->id.',传入original_transaction_id:'.$original_transaction_id.',传入transaction_id:'.$transaction_id.'。';
        filePut($prefix.'参数apple_receipt:'.$receipt_data);

        if (!$receipt_data || !$original_transaction_id || !$transaction_id) {
            $this->error('缺少参数');
        }

        //检查重复订单
        $check_map = [
            'original_transaction_id' => $original_transaction_id,
            'transaction_id'          => $transaction_id,
        ];
        $check_order = Db::name('user_vipxufei_task')->where($check_map)->field('id')->find();
        if($check_order){
            filePut($prefix.'续费早已完成');
            $this->success('充值早已完成');
        }


        // 验证支付状态
        $result = $this->validate_apple_pay($receipt_data);
        if (!$result['status']) {// 验证不通过
            filePut($prefix.'验证'.$result['message']);
            $this->error($result['message']);
        }

        $in_app = $result['data']['receipt']['in_app'];

        $only_trans = [];
        foreach($in_app as $key => $trans){
            //非订阅信息，原始信息，不验证product_id因为可能换了新的套餐
            if($trans['transaction_id'] == $transaction_id && $original_transaction_id == $trans['original_transaction_id']/* && $trans['product_id'] == $order_info['bundle_id']*/){
                $only_trans = $trans;
                break;
            }
        }
        if(empty($only_trans)){
            filePut($prefix.'未找到匹配的交易');
            $this->error('未找到匹配的交易');
        }

        Db::startTrans();
        //查找订单，可能找到以前的，非当前用户的。根据原始id 和 用户id不是终生绑定
        $order_map = [
            'original_transaction_id' => $original_transaction_id,
        ];
        $order_info = Db::name('user_vipxufei_task')->where($order_map)->order('expires_date_ms desc')->find();
        if (!$order_info) {
            Db::rollback();
            filePut($prefix.'不存在的订单');
            $this->error('不存在的订单');
        }

        //续订，但是换了产品了,重新定义order_info
        //原始id换给别人用了
        $order_info_bundle_id = $order_info['bundle_id'];
        $order_info_user_id   = $order_info['user_id'];
        //在app里，不能连续购买同一个续费规格（bunder_id），可以升级或降级另一个续费规格。也可以在苹果商店直接修改规格（不产生新订单）。
        if($only_trans['product_id'] != $order_info['bundle_id'] || $order_info['user_id'] != $this->auth->id){

            $pay_order_map = [
                'user_id'   => ($order_info['user_id']   != $this->auth->id)           ? $this->auth->id           : $order_info['user_id'],
                'bundle_id' => ($order_info['bundle_id'] != $only_trans['product_id']) ? $only_trans['product_id'] : $order_info['bundle_id'],
                'order_status' => 0,
                'table_name' => 'vip_recharge',
            ];
            $pay_order = Db::name('pay_order')->where($pay_order_map)->order('id desc')->lock(true)->find();
            if(!$pay_order){
                /*Db::rollback();
                filePut($prefix.'未找到匹配的交易,新订单找不到');
                $this->error('未找到匹配的新订单');*/

                //创建订单
                $recharge_config = Db::name('payvip_config_ios')->where('bundle_id',$pay_order_map['bundle_id'])->find();
                $new_order = [
                   'user_id' => $pay_order_map['user_id'],
                   'out_trade_no'=> createUniqueNo('NV',$pay_order_map['user_id']), // 数据库订单号加密
                   'order_amount'=> $recharge_config['money'],
                   'createtime'=> time(),

                   'pay_type'=> 'ios',
                   'platform'=> 'app',
                   'order_status'=> 0,
                   'table_name'=> 'vip_recharge',
                   'table_id'=> 0,
                   'args'=> json_encode(['days'=>$recharge_config['days']]),
                   'bundle_id'=> $recharge_config['bundle_id'],
                   'is_lianxu'=> $recharge_config['is_lianxu'],
                ];
                $new_orderid = Db::name('pay_order')->insertGetId($new_order);
                if(!$new_orderid){
                    Db::rollback();
                    filePut($prefix.'未找到匹配的交易,创建新订单失败');
                    $this->error('创建新订单失败');
                }
                $pay_order = $new_order;
                $pay_order['id'] = $new_orderid;

            }
            // 修改订单状态
            $update_order = [
                'notifytime'=>time(),
                'order_status'=>1,
                'original_transaction_id' => $only_trans['original_transaction_id'],
                'in_app_one' => json_encode($only_trans),
            ];
            $ros = Db::name('pay_order')->where(['id' => $pay_order['id']])->update($update_order);
            if($ros === false) {
                filePut($prefix.'修改订单状态失败');
                Db::rollback();
                $this->error('充值失败');
            }
            $args = json_decode($pay_order['args'],true);

            //修改order_info
            $order_info['order_id'] = $pay_order['id'];
            $order_info['user_id']  = $pay_order['user_id'];
            $order_info['bundle_id'] = $pay_order['bundle_id'];
            $order_info['days'] = $args['days'];

            $order_info['original_transaction_id'] = $only_trans['original_transaction_id'];//多余
        }

        //验证时间，不得小于最新的一条预定信息
//        if($order_info_user_id == $this->auth->id){
            if($only_trans['purchase_date_ms'] <= $order_info['purchase_date_ms']/* || $only_trans['expires_date_ms'] <= $order_info['expires_date_ms']*/){
                Db::rollback();
                filePut($prefix.'时间对不上，返回成功，finish掉');
                $this->success('时间对不上，返回成功，finish掉');
            }
//        }

        //逻辑开始
        //先充值
        $user_info = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->lock(true)->find();
        if($user_info['vip_endtime'] < time()){
            //过期了
            $vip_endtime = time() + (intval($order_info['days']) * 86400);
            $vip_type = 1;
        }else{
            //追加vip
            $vip_endtime = $user_info['vip_endtime'] + (intval($order_info['days']) * 86400);
            $vip_type = 2;
        }
        $update_data = [
            'vip_endtime'=>$vip_endtime,
        ];
        $result = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->update($update_data);
        if($result === false)
        {
            filePut($prefix.'逻辑续费vip时间失败');
            Db::rollback();
            $this->error('充值失败');
        }
        //记录日志
        $log_data = [
            'user_id' => $order_info['user_id'],
            'before'  => $user_info['vip_endtime'],
            'change_value'  => intval($order_info['days']) * 86400,
            'remain'  => $vip_endtime,
            'remark'  => 'ios续费vip',
            'createtime'  => time(),
            'vip_type'  => $vip_type,
        ];
        Db::name('user_vip_log')->insertGetId($log_data);
        //逻辑结束

        //添加新的一个task
        $task_data = $order_info;
        unset($task_data['id']);
        unset($task_data['transaction_info']);
        $task_data['createtime'] = time();
        $task_data['apple_receipt'] = $receipt_data;
        $task_data['in_app_one'] = json_encode($only_trans);
        $task_data['transaction_id'] = $transaction_id;
        $task_data['times'] = $order_info['times'] + 1;
        $task_data['original_purchase_date_ms'] = $only_trans['original_purchase_date_ms'];
        $task_data['purchase_date_ms'] = $only_trans['purchase_date_ms'];
        $task_data['expires_date_ms']  = $only_trans['expires_date_ms'];

        //换了产品了，或者订单的user_id被改过了
        if($only_trans['product_id'] != $order_info_bundle_id || $order_info['user_id'] != $order_info_user_id){
            $task_data['times'] = 1;//回归1
        }

        $task_id = Db::name('user_vipxufei_task')->insertGetId($task_data);
        if(!$task_id)
        {
            filePut($prefix.'用户添加vipxufei_task失败');
            Db::rollback();
            $this->error('充值失败');
        }

        Db::commit();
        filePut($prefix.'充值成功'.$task_id);
        $this->success('充值成功'.$task_id);

        //逻辑结束
    }

    //金币+vip,苹果内购支付回调，app请求的接口
    public function gold_notify_iosnew(){

        $original_transaction_id = input('original_transaction_id','','trim');
        if(!empty($original_transaction_id)){
            //订阅信息
            $this->expires();
        }

        //苹果内购的验证收据
        $receipt_data = input('apple_receipt', '', 'trim');
        $out_trade_no = input('out_trade_no', '', 'trim');
        $transaction_id = input('transaction_id', '', 'trim');


        filePut("\r\n\r\n".'新请求');
        $prefix = 'ios充值,登录user_id:'.$this->auth->id.',out_trade_no:'.$out_trade_no.',传入transaction_id:'.$transaction_id.'。';
        filePut($prefix.'参数apple_receipt:'.$receipt_data);

        if (!$receipt_data || !$out_trade_no || !$transaction_id) {
            $this->error('缺少参数');
        }


        Db::startTrans();
        // 查找订单
        $order_map = [
//            'user_id' => $this->auth->id,
            'out_trade_no' => $out_trade_no,
            //'original_transaction_id' => $transaction_id,
        ];
        $order_info = Db::name('pay_order')->where($order_map)->lock(true)->find();
        if (!$order_info) {
            Db::rollback();
            filePut($prefix.'不存在的订单');
            $this->error('不存在的订单');
        }
        if ($order_info['order_status'] == 1) {
            Db::rollback();
            filePut($prefix.'充值早已完成');
            $this->success('充值已完成');
        }

        // 验证支付状态
        $result = $this->validate_apple_pay($receipt_data);
        if (!$result['status']) {// 验证不通过
            Db::rollback();
            filePut($prefix.'验证'.$result['message']);
            $this->error($result['message']);
        }

        $in_app = $result['data']['receipt']['in_app'];

        $only_trans = [];
        foreach($in_app as $key => $trans){
            //非订阅信息，原始信息
            // $trans['transaction_id'] == $transaction_id 这个不重要，重要的是后面2个。应该也重要，保证这次处理的是初始交易
            if($trans['transaction_id'] == $transaction_id && $transaction_id == $trans['original_transaction_id']){
                if($trans['product_id'] == $order_info['bundle_id']){
                    $only_trans = $trans;
                    break;
                }else{
                    //找上一个真正的订单
                    $order_map = [
                        'user_id' => $this->auth->id,
                        'order_status' => 0,
                        'bundle_id' => $trans['product_id']
                    ];
                    $order_info = Db::name('pay_order')->where($order_map)->lock(true)->find();
                    if (!$order_info) {
                        Db::rollback();
                        filePut($prefix.'不存在的正确产品订单');
                        $this->error('不存在的正确产品订单');
                    }

                    $only_trans = $trans;
                    break;
                }
            }
        }
        if(empty($only_trans)){
            Db::rollback();
            filePut($prefix.'未找到匹配的交易,产品id'.$order_info['bundle_id'].',原始交易id'.$transaction_id);
            $this->error('未找到匹配的交易,产品id'.$order_info['bundle_id'].',原始交易id'.$transaction_id);
        }

        //逻辑开始
        $args = json_decode($order_info['args'],true);
        //先充值
        if($order_info['table_name'] == 'gold_recharge'){
            $result = model('Wallet')->lockChangeAccountRemain($order_info['user_id'],'gold',$args['gold'],10, '金币充值','pay_order',$order_info['id']);
            if($result['status']===false)
            {
                filePut($prefix.'逻辑添加金币失败');
                Db::rollback();
                $this->error('充值失败');
            }
        }
        //先充值
        if($order_info['table_name'] == 'vip_recharge'){
            $user_info = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->lock(true)->find();
            if($user_info['vip_endtime'] < time()){
                //过期了
                $vip_endtime = time() + (intval($args['days']) * 86400);
                $vip_type = 1;
            }else{
                //追加vip
                $vip_endtime = $user_info['vip_endtime'] + (intval($args['days']) * 86400);
                $vip_type = 2;
            }
            $update_data = [
                'vip_endtime'=>$vip_endtime,
            ];
            $result = Db::name('user_wallet')->where('user_id',$order_info['user_id'])->update($update_data);
            if($result === false)
            {
                filePut($prefix.'逻辑续费vip时间失败');
                Db::rollback();
                $this->error('充值失败');
            }
            //记录日志
            $log_data = [
                'user_id' => $order_info['user_id'],
                'before'  => $user_info['vip_endtime'],
                'change_value'  => intval($args['days']) * 86400,
                'remain'  => $vip_endtime,
                'remark'  => 'ios购买vip',
                'createtime'  => time(),
                'vip_type'  => $vip_type,
            ];
            Db::name('user_vip_log')->insertGetId($log_data);

            //订阅vip需要多加的逻辑
            if($order_info['is_lianxu'] == 1){
                $task_data = [
                    'order_id' => $order_info['id'],
                    'user_id' => $order_info['user_id'],
                    'bundle_id' => $order_info['bundle_id'],
                    'days' => $args['days'],
                    'createtime' => time(),
                    'apple_receipt' => $receipt_data,
                    'in_app_one' => json_encode($only_trans),
                    'original_transaction_id' => $only_trans['original_transaction_id'],
                    'transaction_id' => $only_trans['transaction_id'],
                    'status' => 1,
                    'times' => 1,
                    //'notification_type' => 'INITIAL_BUY'.',首次订阅',
                    'original_purchase_date_ms' => $only_trans['original_purchase_date_ms'],
                    'purchase_date_ms'          => $only_trans['purchase_date_ms'],
                    'expires_date_ms'           => $only_trans['purchase_date_ms'], //第一次借用购买时间戳
                ];
                $task_id = Db::name('user_vipxufei_task')->insertGetId($task_data);
                if(!$task_id)
                {
                    filePut($prefix.'用户添加vipxufei_task失败');
                    Db::rollback();
                    $this->error('充值失败');
                }
            }

        }

        // 修改订单状态
        $update_order = [
            'notifytime'=>time(),
            'order_status'=>1,
            'original_transaction_id' => $only_trans['original_transaction_id'],//理论上与 transaction_id 相等
            'in_app_one' => json_encode($only_trans),

        ];
        $ros = Db::name('pay_order')->where(['id' => $order_info['id']])->update($update_order);
        if($ros === false) {
            filePut($prefix.'修改订单状态失败');
            Db::rollback();
            $this->error('充值失败');
        }

        Db::commit();
        filePut($prefix.'充值成功');
        $this->success('充值成功');

        //逻辑结束
    }


////////////////////////////////////

    /**
     * ios 事件通知
     * @return bool
     */
    public function auto_renewal_vip_notify()
    {
        $this->notify_log_start('ios');

        try {

            $raw = file_get_contents("php://input");
            //filePut("\r\n\r\n".'入口:'.$raw);
            $raw = json_decode($raw,true);

            $token = isset($raw['signedPayload']) ? $raw['signedPayload'] : '';
            $data  = $this->verifyAppleToken($token);
            dump($data);


            if (empty($data)) {
                //timbao add
                //记录苹果通知逻辑中的bug
                exit;
            }

            $transaction_info = $this->verifyAppleToken($data['data']['signedTransactionInfo']);
            dump($transaction_info);

            $rs = '默认';
            switch ($data['notificationType']) {
                case 'DID_RENEW': // 续订
                    $rs = Transaction::autoRenew($transaction_info);
                    break;
                case 'REFUND': // 退款
                    $rs = Transaction::refund($transaction_info);
                    break;
                case 'DID_CHANGE_RENEWAL_STATUS': // 连续续订状态 变更
                    $rs = Transaction::changeRenewStatus($transaction_info, $data['subtype']);
                    break;
                case 'EXPIRED': // 过期通知
                    $rs = Transaction::updateExpiredTrans($transaction_info);
                    break;
                case 'SUBSCRIBED': // 订阅通知
                    $rs = Transaction::updateSubscribed($transaction_info, $data['subtype']);
                    break;
                case 'DID_FAIL_TO_RENEW': // 续订失败
                    $rs = Transaction::updateRenewFailTrans($transaction_info);
                    break;
                case 'DID_CHANGE_RENEWAL_PREF': //升级 降级
                    if ($data['subtype'] == 'UPGRADE') {
                        $rs = Transaction::autoRenew($transaction_info, true);
                    }
                    break;
            }

            dump($rs);

            exit;
        }catch (Exception $e) {
            echo $e->getMessage();
            exit;
        }
    }

////////////////////////////////私有方法///////////////////////////////////////////////////////////////
    //异步日志
    private function notify_log_start($paytype = 'ios'){
        //记录支付回调数据
        ignore_user_abort(); // run script in background
        set_time_limit(30);
        // 日志文件 start
        $log_base_dir = '../paylog/'.$paytype.'/';
        if (!is_dir($log_base_dir))
        {
            mkdir($log_base_dir, 0770, true);
            @chmod($log_base_dir, 0770);
        }
        $notify_file = $log_base_dir.'notify.txt';
        if(!file_exists($notify_file)) {
            @touch($notify_file);
            @chmod($notify_file, 0770);
        }
        if(filesize($notify_file)>5242880)//大于5M自动切换
        {
            rename($notify_file, $log_base_dir.'notify_'.date('Y_m_d_H_i_s').'.txt');
        }
        if(!file_exists($notify_file)) {
            @touch($notify_file);
            @chmod($notify_file, 0770);
        }
        // 日志文件 end
        //开始写入
        $_REQUEST = isset($_REQUEST) ? $_REQUEST : array();
        if($_REQUEST && $paytype == 'alipay') {
            file_put_contents($notify_file, "\r\n\r\n".date('Y-m-d H:i:s')." [notify][入口接收request]".json_encode($_REQUEST), FILE_APPEND);
        } else {
            $xml = file_get_contents("php://input");
            file_put_contents($notify_file, "\r\n\r\n".date('Y-m-d H:i:s')." [notify][入口接收php://input流原始数据] \n".$xml, FILE_APPEND);
            /*$xmlObj = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
            file_put_contents($notify_file, "\r\n\r\n".date('Y-m-d H:i:s')." [notify][入口接收php://input流] ".json_encode($xmlObj), FILE_APPEND);*/
        }

        ini_set('display_errors','On');

        return $notify_file;

    }


    public function test(){
        $a = input('apple_receipt');
        $b = $this->validate_apple_pay($a);
        echo json_encode($b);
    }

    /**
     * 验证AppStore内付
     * @param string $receipt_data 付款后凭证
     * @return array                验证是否成功
     * https://juejin.cn/post/7049626884765646884 报错代码
     */
    function validate_apple_pay($receipt_data = '') {
        // 验证参数
        if (strlen($receipt_data) < 20) {
            $result = array(
                'status' => false,
                'message' => '非法参数'
            );
            return $result;
        }
        // 请求验证
        $html = $this->curl($receipt_data);
        $data = json_decode($html, true);
        $data['sandbox'] = '0';
//        p($data);die;

        if ($data['status'] == '21002') {
            $result = array(
                'status' => false,
                'message' => 'status:21002'
            );
            return $result;
        }

        // 如果是沙盒数据 则验证沙盒模式 21008;正式数据 21007
        if ($data['status'] == '21007') {
            // 请求验证
            $html = $this->curl($receipt_data, 1);
            $data = json_decode($html, true);
            $data['sandbox'] = '1';
        }

        if (isset($_GET['debug'])) {
            exit(json_encode($data));
        }

        if ($data['receipt']['bundle_id'] != 'com.jianxun.company') {
            $result = array(
                'status' => false,
                'message' => '非法请求',
                'data' => $data
            );
            return $result;
        }
        // 判断是否购买成功
        if (intval($data['status']) === 0) {
            $result = array(
                'status' => true,
                'message' => '购买成功',
                'data' => $data
            );
        } else {
            $result = array(
                'status' => false,
                'message' => '购买失败 status:' . $data['status']
            );
        }
//        dump($result);
        return $result;
    }

    /**
     * 0	票据校验成功
     * 21000 App Store不能读取你提供的JSON对象25
     * 21002 receipt-data域的数据有问题
     * 21003 receipt无法通过验证
     * 21004 提供的shared secret不匹配你账号中的shared secret
     * 21005 receipt服务器当前不可用
     * 21006 receipt合法，但是订阅已过期。服务器接收到这个状态码时，receipt数据仍然会解码并一起发送
     * 21007 receipt是Sandbox receipt，但却发送至生产系统的验证服务
     * 21008 receipt是生产receipt，但却发送至Sandbox环境的验证服务
     */

    //苹果也是建议这个校验逻辑由服务端完成。服务器需要先去请求正式环境。如果receipt是正式环境的，那么这个时候苹果会返回（21007）告诉我们这个是沙盒的receipt，那么服务器再去请求sandbox环境。
    function curl($receipt_data,$sandbox = 0) {
        //小票信息
        $POSTFIELDS = [
            'receipt-data' => $receipt_data,
            'password'     => 'd6c4cae953804133b40e44418dce2afb'
        ];

        $POSTFIELDS = json_encode($POSTFIELDS, 320);

        //正式购买地址 沙盒购买地址
        $url_buy = "https://buy.itunes.apple.com/verifyReceipt";
        $url_sandbox = "https://sandbox.itunes.apple.com/verifyReceipt";

        //默认后台控制
        if (config('site.ios_pay_sandbox') > 0 ) {
            $url = $url_buy;
        } else {
            $url = $url_sandbox;
        }
        //强制沙盒
        if($sandbox == 1){
            $url = $url_sandbox;
        }

        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $POSTFIELDS);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);  //这两行一定要加，不加会报SSL 错误
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        $response = curl_exec($ch);
        $errno = curl_errno($ch);
        curl_close($ch);

        if ($errno != 0) {
            return $errno;
        } else {
            return $response;
        }
    }

    /**
     * 苹果token解密
     *
     * @param $token
     * @return array|bool|mixed|string
     */
    private function verifyAppleToken($token)
    {
        $arr = explode('.',$token);
        if(count($arr) != 3){
            return [];
        }
        $header = $arr[0];
        $header = base64_decode($header);
        $header = json_decode($header,true);
        if(empty($header)){
            return [];
        }
        if($header['alg'] != 'ES256'){
            return [];
        }
        $data = $arr[1];
        $data = base64_decode($data);
        $data = json_decode($data,true);
        if(empty($data)){
            return [];
        }
        $sign = $arr[2];
        if(empty($sign)){
            return [];
        }
        return $data;
    }

}