hainan/app/Http/Controllers/Api/WxpayController.php

<?php

namespace App\Http\Controllers\Api;
use App\Http\Controllers\Controller;
use App\Models\Order;
use EasyWeChat\Factory;
use EasyWeChat\Kernel\Exceptions\Exception;
use Illuminate\Support\Facades\DB;
use App\Service\OrderStatus;

class WxpayController extends Controller
{
	//微信支付 支付结果通知网址
	public function notify()
	{
		// {"sign": "3F99E6044C503B0E0131F95A1410B630", "appid": "wxb35ef055a4dd8ad4", "mch_id": "1606181693", "openid": "oBYj55W0gLv5MYUnsYUuJfzYzmsg", "cash_fee": "1", "fee_type": "CNY", "time_end": "20210623222330", "bank_type": "OTHERS", "nonce_str": "60d343d820e94", "total_fee": "1", "trade_type": "JSAPI", "result_code": "SUCCESS", "return_code": "SUCCESS", "is_subscribe": "N", "out_trade_no": "2842908479209865216", "transaction_id": "4200001210202106237487333085"}

		$config = config('wechat.payment.default');
		$app = Factory::payment($config);
		try {
			$response = $app->handlePaidNotify(function ($message, $fail) {
				// 请求成功
				if ($message['return_code'] === 'SUCCESS') {
					$order = Order::query()
						->where(['order_no' => $message['out_trade_no']])
						->first();

					//已经处理过的订单直接返回true
					if ($order && $order->paid_at) {
						return true;
					}

					// 支付成功
					if ($message['result_code'] === 'SUCCESS') {
						DB::beginTransaction();
						try {
							//TODO 需要判断尾款和全款
							$order->status = OrderStatus::PAID;
							$order->paid_at = time();

							$snowflake = resolve('snowflake');
							$confirmCode = $snowflake->id(); // TODO 这个码太长后续可以找方案搞短些
							$order->confirm_code = isset($params['platform:']) && $params['platform']
								? $params['platform:'] . '|' . $confirmCode
								: $confirmCode;

							$order->save();

							// 计算销量
							GoodsSpecs::query()
								->where([
									'id' => $order->goods_specs_id,
									'goods_id' => $order->goods_id,
								])
								->update([
									'sold_stock' => DB::raw('sold_stock+' . $order->number . ''),
								]);

							DB::commit();
							return true;
						} catch (\Exception $e) {
							DB::rollBack();
							$fail('Unknown error');
						}


					} // 支付失败
					elseif ($message['result_code'] === 'FAIL') {
						$order->state = UserGoodsOrder::PAID_FAIL;
						$order->save();
						return true;
					}
				}

				// 希望微信重试
				$fail('Order not exists.');
			});
		} catch (Exception $e) {
			$time = time();
			$filename = storage_path('/wxpay/notify/') . date('Y-m-d-H', $time) . '.log';
			$data = '[' . date('Y-m-d H:i:s', $time) . ']' . PHP_EOL;
			$data .= '[message]:' . $e->getMessage() . PHP_EOL . PHP_EOL;
			file_put_contents($filename, $data, FILE_APPEND);
		}

		return $response;
	}

	//退款通知
	public function refund()
	{

		// {"sign": "3F99E6044C503B0E0131F95A1410B630", "appid": "wxb35ef055a4dd8ad4", "mch_id": "1606181693", "openid": "oBYj55W0gLv5MYUnsYUuJfzYzmsg", "cash_fee": "1", "fee_type": "CNY", "time_end": "20210623222330", "bank_type": "OTHERS", "nonce_str": "60d343d820e94", "total_fee": "1", "trade_type": "JSAPI", "result_code": "SUCCESS", "return_code": "SUCCESS", "is_subscribe": "N", "out_trade_no": "2842908479209865216", "transaction_id": "4200001210202106237487333085"}

		$config = config('wechat.payment.default');
		$app = Factory::payment($config);
		$response = $app->handleRefundedNotify(function ($message, $reqInfo, $fail) {
			// 记录一下本地调试
			file_put_contents(storage_path('/wxpay/refund'.date('Y-m-d-H').'.log'), date('Y-m-d H:i:s').PHP_EOL.json_encode($message).PHP_EOL.json_encode($reqInfo), FILE_APPEND);
			// 请求成功
			if ($message['return_code'] === 'SUCCESS') {
				$order = UserGoodsOrder::query()
					->where(['order_sn' => $reqInfo['out_trade_no']])
					->first();

				// 退款成功
				if ($reqInfo['refund_status'] === 'SUCCESS') {
					DB::beginTransaction();
					try {

						$apply = RefundApply::query()
							->where('refund_sn', $reqInfo['out_refund_no'])
							->first();

						if (!$apply) {
							$fail('退款单没找到');
						}

						$apply->state = 2;
						$apply->save();

						$order->state = UserGoodsOrder::REFUNDED;
						$order->save();

						// 退库存
						GoodsSpecs::query()
							->where([
								'id' => $order->goods_specs_id,
								'goods_id' => $order->goods_id,
							])
							->update([
								'stock' => DB::raw('stock+'.$order->number.''),
							]);

						DB::commit();
						return true;
					} catch (\Exception $e) {
						DB::rollBack();
						$fail('Unknown error');
					}
				}
			}

			$fail('Unknown error');
		});

		return $response;
	}
}