<?php


namespace app\api\controller;

use app\common\model\User;
use app\common\model\Order;
use app\common\model\ShopConfig;
use Exception;
use think\Request;
use think\response\Json;
use tools\Crypt;
use tools\WxxiaopayApi;
use think\facade\Log;

class PaymentController extends Controller
{
    protected $authExcept = [
        'wxnotify'
    ];

    /**
     * Notes: 预支付
     */
    public function prepay(Request $request,Order $omodel)
    {
        $param = $request->param();
        $user_id = $param['uid']?Crypt::decrypt($param['uid']):'';
        if(!$user_id){
            return unauthorized('请先授权');
        }
        $order_sn=$param['order_sn']??'';
        if(!isset($order_sn)) {
            return client_error('订单不存在');
        }
        $order = $omodel
                    ->alias('o')
                    ->field("order_status,openid")
                    ->join('user u', 'u.id = o.user_id')
                    ->where(array('order_sn'=>$order_sn,'user_id'=>$user_id))
                    ->find();
         //找不到订单
        if (empty($order)) {
            return client_error('订单不存在');
        }
        if ($order['order_status'] !='0') {
            return client_error('该订单无法进行支付，请查看订单状态');
        }
        $order_wechatsn =$order_sn.str_pad(mt_rand(1, 999), 3, '0', STR_PAD_LEFT);
        $WXPAYKEY=ShopConfig::get('website', 'WXPAYKEY');
        $MCHID=ShopConfig::get('website', 'MCHID');
        $APPID=ShopConfig::get('website', 'APPID');
        $notify_url=ShopConfig::get('website', 'notify_url');
        $WxxiaopayApi = new WxxiaopayApi($APPID,$MCHID,$WXPAYKEY,$notify_url);
        $log_ip=$request->ip();
        $wxData =$WxxiaopayApi->prePay($order_sn,$order_wechatsn,$order_sn,$order['openid'],$log_ip);
        return success($wxData);
    }

    //微信小程序回调
    public function wxnotify(Request $request,FrontMemberLog $fmlmodel,FrontUserMember $fummodel)
    {
        $xml = file_get_contents('php://input', 'r');
        $data = $this->toArray($xml);
        Log::write('微信回调2：'.var_export($data, true));
        if($data['result_code']==='SUCCESS' && $data['return_code']==='SUCCESS'){
            $order_sn = mb_substr($data['out_trade_no'],0,18);
            $parameter['transaction_id']= $data['transaction_id'];          //支付宝交易号
            $parameter['pay_time']    =time();
            $parameter['is_pay']    =1;
            $order_info = $fmlmodel
                            ->alias('fml')
                            ->field('fml.*,fm.days as days')
                            ->where(array('order_sn'=>$order_sn))
                            ->join('front_member fm', 'fm.id = fml.member_id')
                            ->find();
            if($order_info){
                $fummodel_info=$fummodel->where(array('user_id'=>$order_info['user_id'],'cid'=>$order_info['cid']))->find();
                $days_num=(60*60*24)*$order_info['days'];
                $data_info['end_time']=time()+$days_num;
                if($fummodel_info){
                    $fummodel->where(array('id'=>$fummodel_info['id']))->update($data_info);
                }else{
                    $data_info['user_id']=$order_info['user_id'];
                    $data_info['cid']=$order_info['cid'];
                    $fummodel::create($data_info);
                }
                $fmlmodel->where(array('order_sn'=>$order_sn))->update($parameter);
                exit('success');
            }
        }
        exit('fail');
    }

    /**
     * 将xml转为array
     * @param  string $xml xml字符串
     * @return array       转换得到的数组
     */
    public function toArray($xml) {
        //禁止引用外部xml实体
        libxml_disable_entity_loader(true);
        $result= json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
        return $result;
    }
}