<?php

namespace App\Services;
use Illuminate\Support\Facades\Log;
use WeChatPay\Builder;
use WeChatPay\BuilderChainable;
use WeChatPay\Crypto\Rsa;

class WechatPayService
{
    /**
     * 初始化一个APIv3客户端
     * @return void
     */
    private function newClient(): BuilderChainable
    {
        // 商户号
        $merchantId = config("wechatpay.payment.mch_id");

        // 从本地文件中加载「商户API私钥」，「商户API私钥」会用来生成请求的签名
        $merchantPrivateKeyFilePath = 'file://' . config("wechatpay.payment.cert_key_path");
        $merchantPrivateKeyInstance = Rsa::from($merchantPrivateKeyFilePath, Rsa::KEY_TYPE_PRIVATE);

        // 「商户API证书」的「证书序列号」
        $merchantCertificateSerial = config("wechatpay.payment.serial");

        // 从本地文件中加载「微信支付平台证书」，可由内置CLI工具下载到，用来验证微信支付应答的签名
        $platformCertificateFilePath = 'file://' . config("wechatpay.payment.platform_cert_path");
        $onePlatformPublicKeyInstance = Rsa::from($platformCertificateFilePath, Rsa::KEY_TYPE_PUBLIC);

        // 「微信支付平台证书」的「平台证书序列号」
        // 可以从「微信支付平台证书」文件解析，也可以在 商户平台 -> 账户中心 -> API安全 查询到
        $platformCertificateSerial = config("wechatpay.payment.platform_cert_serial");

        // // 从本地文件中加载「微信支付公钥」，用来验证微信支付应答的签名
        // $platformPublicKeyFilePath = 'file://' . config("wechatpay.payment.public_key_path");
        // $twoPlatformPublicKeyInstance = Rsa::from($platformPublicKeyFilePath, Rsa::KEY_TYPE_PUBLIC);

        // // 「微信支付公钥」的「微信支付公钥ID」
        // // 需要在 商户平台 -> 账户中心 -> API安全 查询
        // $platformPublicKeyId = config("wechatpay.payment.public_key_id");

        // 构造一个 APIv3 客户端实例
        $instance = Builder::factory([
            'mchid' => $merchantId,
            'serial' => $merchantCertificateSerial,
            'privateKey' => $merchantPrivateKeyInstance,
            'certs' => [
                $platformCertificateSerial => $onePlatformPublicKeyInstance,
                // $platformPublicKeyId => $twoPlatformPublicKeyInstance,
            ],
        ]);
        return $instance;
    }

    /**
     * 转账零钱
     * @return void
     */
    public function officialUserTransfer(string $trade_no, string $scene_id, string $openid, int $amount, string $remark, array $transfer_scene_report_infos = []): array
    {
        // 发送请求
        if (empty(count($transfer_scene_report_infos))) {
            $transfer_scene_report_infos = [["info_type" => "报酬说明", "info_content" => "用户提取账户金额"]];
        }
        try {
            $appid = config("wechat.official_account.default.app_id");
            $data = [
                "appid" => $appid,
                "out_bill_no" => $trade_no,
                "transfer_scene_id" => (string) $scene_id,
                "openid" => $openid,
                "transfer_amount" => $amount,
                "transfer_remark" => $remark,
                "transfer_scene_report_infos" => $transfer_scene_report_infos
            ];
            Log::info("转账数据", $data);
            $instance = $this->newClient();
            $resp = $instance->chain('v3/fund-app/mch-transfer/transfer-bills')->post([
                "json" => $data
            ]);
            $res = json_decode($resp->getBody(), true);
            dd($res);
        } catch (\Exception $e) {
            // 进行异常捕获并进行错误判断处理
            Log::info($e->getMessage());
            if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
                $r = $e->getResponse();
                $res = json_decode($r->getBody());
                return ["code" => 1, "err_msg" => $res->message];
            }

            return ["code" => 1, "err_msg" => $e->getMessage()];
        }
    }

    /**
     * 转账银行卡
     * @return void
     */
    public function bankTransfer()
    {

    }
}