<?php
namespace Core\Payment;

use App\Models\Setting;

/**
 * 支付网关工厂：根据后台「支付设置」构建对应通道
 */
class GatewayFactory
{
    public static function make(string $channel): Gateway
    {
        $s = new Setting();
        $mode = $s->get('pay_mode', 'demo');
        $enabled = $s->get('pay_enabled', '1');

        if ($channel === 'alipay') {
            return new AlipayGateway([
                'mode'         => $mode,
                'enabled'      => $enabled,
                'appid'        => $s->get('pay_alipay_appid', ''),
                'private_key'  => $s->get('pay_alipay_private_key', ''),
                'public_key'   => $s->get('pay_alipay_public_key', ''),
                'gateway'      => $s->get('pay_alipay_gateway', 'https://openapi.alipay.com/gateway.do'),
            ]);
        }
        return new WechatGateway([
            'mode'    => $mode,
            'enabled' => $enabled,
            'mchid'   => $s->get('pay_wechat_mchid', ''),
            'appid'   => $s->get('pay_wechat_appid', ''),
            'key'     => $s->get('pay_wechat_key', ''),
        ]);
    }
}