init

- 框架初始化
 - 安装插件
 - 修复PHP8.4报错

addons/epay/library/v2/Yansongda/Pay/Gateways/Alipay/Gateway.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Yansongda\Pay\Gateways\Alipay;
+
+use Yansongda\Pay\Contracts\GatewayInterface;
+use Yansongda\Pay\Exceptions\InvalidArgumentException;
+use Yansongda\Supports\Collection;
+
+abstract class Gateway implements GatewayInterface
+{
+    /**
+     * Mode.
+     *
+     * @var string
+     */
+    protected $mode;
+
+    /**
+     * Bootstrap.
+     *
+     * @author yansongda <me@yansongda.cn>
+     *
+     * @throws InvalidArgumentException
+     */
+    public function __construct()
+    {
+        $this->mode = Support::getInstance()->mode;
+    }
+
+    /**
+     * Pay an order.
+     *
+     * @author yansongda <me@yansongda.cn>
+     *
+     * @param string $endpoint
+     *
+     * @return Collection
+     */
+    abstract public function pay($endpoint, ?array $payload);
+}