hainan/app/AdminAgent/Extensions/Grid/AuditRefund.php

<?php

namespace App\AdminAgent\Extensions\Grid;
use App\Common\OrderStatus;
use App\Common\PayType;
use App\Models\AdminSetting;
use App\Models\Order;
use App\Models\UserMoneyLog;
use Dcat\Admin\Admin;
use Dcat\Admin\Grid\RowAction;
use EasyWeChat\Factory;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

/**
 * 退款审核
 * Class AuditRefund
 * @package App\AdminAgent\Extensions\Grid
 */
class AuditRefund extends RowAction
{
	private $action;

	public function __construct($title = null, $action = 1)
	{
		parent::__construct($title);
		$this->action = $action; //$action：1=通过；2=拒绝
		$this->title = $action == 1 ? '通过' : '拒绝';
	}

	protected function html()
	{
		$class = $this->action == 1 ? 'btn btn-sm btn-success' : 'btn btn-sm btn-danger';
		$this->appendHtmlAttribute('class', $class);
		$this->defaultHtmlAttribute('href', 'javascript:;');

		return "<a {$this->formatHtmlAttributes()}>{$this->title}</a>";
	}

	public function handle(Request $request)
	{
		return $request->action == 1 ? $this->pass() : $this->refuse();
	}

	//通过退款
	private function pass()
	{
		$agent = Admin::user();
		DB::beginTransaction();
		try {
			//修改订单状态
			$order = Order::firstWhere(['id' => $this->getKey(), 'agent_id' => $agent->id, 'status' => OrderStatus::REFUNDING]);
			if (!$order) {
				throw new \Exception("退款订单不存在或已处理过了");
			}

			/**
			 * 【注意】线下付款退款暂不支持，若要开启，需要同时扣回供应商的余额，否则供应商可以白嫖
			 * 详见：App\AdminAgent\Extensions\Grid\ChangeOrderStatus
			 */
			if ($order->pay_type == PayType::OFFLINE) {
				throw new \Exception("线下支付退款功能暂未开放");
			}

			//查看原来的支付信息，可能存在多条支付记录
			$log = UserMoneyLog::query()
				->where(['user_id' => $order->user_id, 'order_id' => $order->id, 'type' => 1])
				->where('transaction_id', '<>', '')
				->get();
			if ($log->isEmpty()) {
				throw new \Exception('未查询到该笔订单的支付信息，退款失败');
			}

			$setting = AdminSetting::val(['payee_appid', 'payee_mchid', 'payee_mchkey']);
			if (!isset($setting['payee_appid'], $setting['payee_mchid'], $setting['payee_mchkey'])) {
				throw new \Exception('获取系统配置失败');
			}

			//向微信发起退款申请
			$config = config('wechat.payment.default');
			$config = array_merge($config, [
				'app_id' => $setting['payee_appid'],
				'mch_id' => $setting['payee_mchid'],
				'key' => $setting['payee_mchkey'],
				'notify_url' => route('wxpay_refund', $agent->id),
				'cert_path' => env('WECHAT_CERT'),
				'key_path' => env('WECHAT_KEY'),
			]);
			$app = Factory::payment($config);

			// 参数分别为：微信订单号、商户退款单号、订单金额、退款金额、其他参数
			$refund_money = 0;
			foreach ($log as $k=>$v) {
				$refund_money = $refund_money + $v->money;
				$refund_no = $order->refund_info['refund_no'] . '-' . $v['id'];
				$money = intval($v->money * 100);
				$result = $app->refund->byTransactionId($v->transaction_id, $refund_no, $money, $money);

				//存入UserMoneyLog
				if (isset($result['return_code'], $result['result_code']) && $result['return_code'] == 'SUCCESS' && $result['result_code'] == 'SUCCESS') {
					UserMoneyLog::query()->insert([
						'user_id' => $order->user_id,
						'agent_id' => $order->agent_id,
						'money' => $result['refund_fee'] / 100,
						'order_id' => $order->id,
						'type' => 2,
						'desc' => DB::raw("LEFT('退款：{$order->title}', 250)"),
						'transaction_id' => $result['transaction_id'],
						'created_at' => now(), //模型没有updated_at，无法自动写入时间
					]);
				} else {
					throw new \Exception("操作失败，失败原因：" . ($result['return_msg']??'未知'));
				}
			}

			//保存到订单表
			$order->verify_code = ''; //清空核销码
			$order->status = OrderStatus::REFUNDED;
			$order->paid_money = DB::raw('`paid_money` - ' . $refund_money);
			$order->save();

			DB::commit();
			return $this->response()->success("操作成功，款项将原路退还")->refresh();
		} catch (\Exception $e) {
			DB::rollBack();
			return $this->response()->error($e->getMessage())->refresh();
		}
	}

	//拒绝退款
	private function refuse()
	{
		try {
			$order = Order::firstWhere(['id' => $this->getKey(), 'agent_id' => Admin::user()->id, 'status' => OrderStatus::REFUNDING]);
			if (!$order) {
				return $this->response()->error("退款订单不存在或已处理过了")->refresh();
			}
			$order->status = OrderStatus::REFUSED_REFUND;
			$order->save();
			return $this->response()->success("操作成功，退款已拒绝")->refresh();
		} catch (\Exception $e) {
			return $this->response()->error($e->getMessage());
		}
	}

	public function confirm()
	{
		return ['确定要'.$this->title.'该用户的退款吗？', ''];
	}

	public function parameters()
	{
		return ['action' => $this->action];
	}
}