/*
   * 微信支付
   */
   'payment' => [
     'merchant_id'    => env('WECHAT_PAYMENT_MERCHANT_ID', 'your-mch-id'),//商家號(hào)ID，請(qǐng)將其放在.env文件中
     'key'        => env('WECHAT_PAYMENT_KEY', 'key-for-signature'),//商家支付key，請(qǐng)將其放在.env文件中
     'cert_path'     => env('WECHAT_PAYMENT_CERT_PATH', storage_path('app/public/apiclient_cert.pem')), //微信支付證書apiclient_cert.pem的絕對(duì)路徑，我放在storage/app/public/下
     'key_path'      => env('WECHAT_PAYMENT_KEY_PATH', storage_path('app/public/apiclient_key.pem')),   //微信支付證書apiclient_key.pem的絕對(duì)路徑，我放在storage/app/public/下徑
     // 'device_info'   => env('WECHAT_PAYMENT_DEVICE_INFO', ''),
     // 'sub_app_id'   => env('WECHAT_PAYMENT_SUB_APP_ID', ''),
     // 'sub_merchant_id' => env('WECHAT_PAYMENT_SUB_MERCHANT_ID', ''),
     // ...
   ],

//以下路由我放在api.php路由里，如果你放在web.php路由，請(qǐng)自行調(diào)整！
Route::middleware('api')->post('wxpay','BillsController@wxpay');
Route::middleware('api')->post('wx_notify','BillsController@wxnotify');

 /**
  * 這是我自己項(xiàng)目的內(nèi)部代碼示例，具體根據(jù)自己的業(yè)務(wù)邏輯調(diào)整，切不可直接拷貝！
  */
  public function wxpay(Request $request)
  {
    //本實(shí)例傳遞的參數(shù)為user_id 和 broadcast_id，具體
    if($request->has('user_id') && $request->has('broadcast_id')){
      $out_trade_no = md5(Carbon::now().str_random(8));
      $user_id = $request->get('user_id');
      $broadcast_id = $request->get('broadcast_id');
      $num = $request->get('num');
      $flag = $request->get('flag');

      $openid = $this->user->getOpenid($user_id);
      $broadcast = $this->broadcast->getById($broadcast_id);
      $speaker_id = $broadcast->speaker_id;
      $body = $broadcast->title;
      $detail = '';
      $paid_at = null;

      $status = 'pre_paid';
      $amount = ($broadcast->price)*$num;

      $attributes = [
        'trade_type'    => 'JSAPI', // JSAPI，NATIVE，APP...
        'body'       => $body, 
        'detail'      => $detail,
        'out_trade_no'   => $out_trade_no,
        'total_fee'    => $amount, // 單位：分
        'notify_url'    => $_ENV['APP_URL'].'/api/wx_notify', // 支付結(jié)果通知網(wǎng)址，如果不設(shè)置則會(huì)使用配置里的默認(rèn)地址
        'openid'      => $openid, // trade_type=JSAPI，此參數(shù)必傳，用戶在商戶appid下的唯一標(biāo)識(shí)，
        // ...
      ];

      $order = new Order($attributes);
      $result = $this->wechat->payment->prepare($order);
      if ($result->return_code == 'SUCCESS' && $result->result_code == 'SUCCESS'){
        //創(chuàng)建預(yù)訂單
        $param = [
          'out_trade_no'=>$out_trade_no,
          'user_id'=>$user_id,
          'broadcast_id'=>$broadcast_id,
          'speaker_id'=>$speaker_id,
          'body'=>$body,
          'detail'=>$detail,
          'paid_at'=>$paid_at,
          'amount'=>$amount,
          'flag'=>$flag,
          'status'=>$status,
          'num'=>$num
        ];
        $this->bill->store($param);
        //返回
        $prepayId = $result->prepay_id;
        $config = $this->wechat->payment->configForPayment($prepayId,false);

        return response()->json($config);
      }
    }

  }

   /**
   * 這是我自己項(xiàng)目的內(nèi)部代碼示例，具體根據(jù)自己的業(yè)務(wù)邏輯調(diào)整，切不可直接拷貝！
   */
  public function wxnotify()
  {
    $response = $this->wechat->payment->handleNotify(function($notify, $successful){
      $order = $this->bill->getBillByOrderno($notify->out_trade_no);//查詢訂單($notify->out_trade_no);
      if (!$order) { // 如果訂單不存在
        return 'Order not exist.'; // 告訴微信，我已經(jīng)處理完了，訂單沒(méi)找到，別再通知我了
      }
      // 如果訂單存在
      // 檢查訂單是否已經(jīng)更新過(guò)支付狀態(tài)
      if ($order->paid_at) { // 假設(shè)訂單字段“支付時(shí)間”不為空代表已經(jīng)支付
        return true; // 已經(jīng)支付成功了就不再更新了
      }
      // 用戶是否支付成功
      if ($successful) {
        // 不是已經(jīng)支付狀態(tài)則修改為已經(jīng)支付狀態(tài)
        $order->paid_at = Carbon::now(); // 更新支付時(shí)間為當(dāng)前時(shí)間
        $order->status = 'paid';
      } else { // 用戶支付失敗
        $order->status = 'paid_fail';
      }
      $order->save(); // 保存訂單
      return true; // 返回處理完成
    });
    return $response; 
  }

   wechatpay(){
    var param = {
     'user_id':this.getStorage(),
     'broadcast_id':this.id,
     'num':1,
     'flag':'buy',
    }
    this.$http.post(this.GLOBAL.apiUrl+'/wxpay',param).then((response) => {
     WeixinJSBridge.invoke(
      'getBrandWCPayRequest', response.data,
      function(res){
       if(res.err_msg == "get_brand_wcpay_request:ok" ) {
        # 回調(diào)成功后跳轉(zhuǎn)
        # router.push({name: 'Room',params:{id:this.id}});
       }
      }
     );
    })
   },