init

- 框架初始化
 - 安装插件
 - 修复PHP8.4报错

addons/epay/library/v2/Yansongda/Pay/Gateways/Wechat/RefundGateway.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Yansongda\Pay\Gateways\Wechat;
+
+use Yansongda\Pay\Exceptions\InvalidArgumentException;
+
+class RefundGateway extends Gateway
+{
+    /**
+     * Find.
+     *
+     * @author yansongda <me@yansongda.cn>
+     *
+     * @param $order
+     */
+    public function find($order): array
+    {
+        return [
+            'endpoint' => 'pay/refundquery',
+            'order' => is_array($order) ? $order : ['out_trade_no' => $order],
+            'cert' => false,
+        ];
+    }
+
+    /**
+     * Pay an order.
+     *
+     * @author yansongda <me@yansongda.cn>
+     *
+     * @param string $endpoint
+     *
+     * @throws InvalidArgumentException
+     */
+    public function pay($endpoint, ?array $payload)
+    {
+        throw new InvalidArgumentException('Not Support Refund In Pay');
+    }
+
+    /**
+     * Get trade type config.
+     *
+     * @author yansongda <me@yansongda.cn>
+     *
+     * @throws InvalidArgumentException
+     */
+    protected function getTradeType()
+    {
+        throw new InvalidArgumentException('Not Support Refund In Pay');
+    }
+}