<?php

namespace app\common\library\pay;

use app\common\exception\Exception;
use think\Cache;

/**
 * 微信小程序虚拟支付服务类
 * 文档地址: https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/virtual-payment.html
 */
class VirtualPayService
{
    /**
     * 虚拟支付配置
     * @var array
     */
    protected $config;

    /**
     * 小程序配置
     * @var array
     */
    protected $miniappConfig;

    /**
     * 微信API基础地址
     * @var string
     */
    const API_BASE = 'https://api.weixin.qq.com';

    /**
     * 构造函数，初始化虚拟支付配置
     */
    public function __construct()
    {
        $this->config = \app\common\model\config\System::getConfig('virtual_pay');
        $this->miniappConfig = \app\common\model\config\System::getConfig('wxMiniProgram');

        if (!$this->config || !$this->miniappConfig) {
            throw new Exception('虚拟支付配置未初始化');
        }
    }

    /**
     * 获取access_token（使用稳定版API）
     * @param bool $forceRefresh 是否强制刷新
     * @return string
     * @throws Exception
     */
    public function getAccessToken($forceRefresh = false)
    {
        $cacheKey = 'virtual_pay_access_token:' . UNIACID;

        if (!$forceRefresh) {
            $token = Cache::get($cacheKey);
            if ($token) {
                return $token;
            }
        }

        $url = self::API_BASE . '/cgi-bin/stable_token';
        $params = [
            'grant_type' => 'client_credential',
            'appid'      => $this->miniappConfig['app_id'],
            'secret'     => $this->miniappConfig['secret'],
        ];

        $result = $this->httpPost($url, json_encode($params, JSON_UNESCAPED_UNICODE));

        if (isset($result['access_token'])) {
            Cache::set($cacheKey, $result['access_token'], $result['expires_in'] - 300);
            return $result['access_token'];
        }

        throw new Exception('获取access_token失败: ' . ($result['errmsg'] ?? '未知错误'));
    }

    /**
     * 查询用户代币余额
     * @param string $openid 用户openid
     * @return array
     */
    public function queryUserBalance($openid)
    {
        $uri = '/xpay/query_user_balance';
        $accessToken = $this->getAccessToken();
        $params = [
            'openid'  => $openid,
            'env'     => intval($this->config['env']),
            'user_ip' => request()->ip(),
        ];
        $body = $this->encodeBody($params);
        $paySig = $this->generatePaySig($uri, $body);
        $signature = $this->getServerSignature($openid, $body);

        $url = self::API_BASE . $uri;
        $url .= '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig) . '&signature=' . rawurlencode($signature);

        $result = $this->httpPost($url, $body);

        return $result;
    }

    /**
     * 扣减代币（代币支付）
     * @param string $openid 用户openid
     * @param int $amount 扣减数量
     * @param string $orderId 商户订单号
     * @param array $payItem 支付项信息
     * @return array
     */
    public function currencyPay($openid, $amount, $orderId, $payItem = [])
    {
        $uri = '/xpay/currency_pay';
        $accessToken = $this->getAccessToken();
        $params = [
            'openid'   => $openid,
            'env'      => intval($this->config['env']),
            'user_ip'  => request()->ip(),
            'amount'   => intval($amount),
            'order_id' => $orderId,
            'payitem'  => json_encode($payItem, JSON_UNESCAPED_UNICODE),
            'remark'   => '代币支付',
        ];
        $body = $this->encodeBody($params);
        $paySig = $this->generatePaySig($uri, $body);
        $signature = $this->getServerSignature($openid, $body);

        $url = self::API_BASE . $uri;
        $url .= '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig) . '&signature=' . rawurlencode($signature);

        $result = $this->httpPost($url, $body);

        return $result;
    }

    /**
     * 代币支付退款
     * @param string $openid 用户openid
     * @param int $amount 退还数量
     * @param string $orderId 原订单号
     * @param string $refundId 退款单号
     * @return array
     */
    public function cancelCurrencyPay($openid, $amount, $orderId, $refundId)
    {
        $uri = '/xpay/cancel_currency_pay';
        $accessToken = $this->getAccessToken();
        $params = [
            'openid'       => $openid,
            'env'          => intval($this->config['env']),
            'user_ip'      => request()->ip(),
            'pay_order_id' => $orderId,
            'order_id'     => $refundId,
            'amount'       => intval($amount),
        ];
        $body = $this->encodeBody($params);
        $paySig = $this->generatePaySig($uri, $body);
        $signature = $this->getServerSignature($openid, $body);

        $url = self::API_BASE . $uri;
        $url .= '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig) . '&signature=' . rawurlencode($signature);

        $result = $this->httpPost($url, $body);

        return $result;
    }

    /**
     * 查询订单（现金订单）
     * @param string $openid 用户openid
     * @param string $outTradeNo 商户订单号
     * @param string $wxOrderId 微信订单号
     * @param string $refundOrderId 退款单号（查询退款单状态时使用）
     * @return array
     */
    public function queryOrder($openid, $outTradeNo = '', $wxOrderId = '', $refundOrderId = '')
    {
        if (empty($outTradeNo) && empty($wxOrderId) && empty($refundOrderId)) {
            return ['errcode' => -1, 'errmsg' => '订单号不能为空'];
        }

        $uri = '/xpay/query_order';
        $params = [
            'openid' => $openid,
            'env'    => intval($this->config['env']),
        ];
        if (!empty($refundOrderId)) {
            $params['order_id'] = $refundOrderId;
        } elseif (!empty($outTradeNo)) {
            $params['order_id'] = $outTradeNo;
        } else {
            $params['wx_order_id'] = $wxOrderId;
        }
        $body = $this->encodeBody($params);

        $result = $this->callApiWithRetry(function ($accessToken) use ($uri, $body) {
            $paySig = $this->generatePaySig($uri, $body);
            $url = self::API_BASE . $uri . '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig);
            return $this->httpPost($url, $body);
        });

        return $result;
    }

    /**
     * 通知发货完成（现金订单）
     * @param string $outTradeNo 商户订单号
     * @return array
     */
    public function notifyProvideGoods($outTradeNo)
    {
        $uri = '/xpay/notify_provide_goods';
        $params = [
            'order_id' => $outTradeNo,
            'env'      => intval($this->config['env']),
        ];
        $body = $this->encodeBody($params);

        $result = $this->callApiWithRetry(function ($accessToken) use ($uri, $body) {
            $paySig = $this->generatePaySig($uri, $body);
            $url = self::API_BASE . $uri . '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig);
            return $this->httpPost($url, $body);
        });

        return $result;
    }

    /**
     * 启动订单退款任务（现金订单）
     * @param string $openid 下单用户openid
     * @param string $outTradeNo 商户订单号
     * @param string $refundOrderId 退款单号
     * @param int $leftFee 当前剩余可退金额（分）
     * @param int $refundFee 本次退款金额（分）
     * @param string $reason 退款原因枚举
     * @param string $reqFrom 退款来源枚举
     * @return array
     */
    public function refundOrder($openid, $outTradeNo, $refundOrderId, $leftFee, $refundFee, $reason = '0', $reqFrom = '3')
    {
        $uri = '/xpay/refund_order';
        $params = [
            'openid'          => $openid,
            'order_id'        => $outTradeNo,
            'refund_order_id' => $refundOrderId,
            'left_fee'        => intval($leftFee),
            'refund_fee'      => intval($refundFee),
            'biz_meta'        => $outTradeNo,
            'refund_reason'   => strval($reason),
            'req_from'        => strval($reqFrom),
            'env'             => intval($this->config['env']),
        ];
        $body = $this->encodeBody($params);

        $result = $this->callApiWithRetry(function ($accessToken) use ($uri, $body) {
            $paySig = $this->generatePaySig($uri, $body);
            $url = self::API_BASE . $uri . '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig);
            return $this->httpPost($url, $body);
        });

        return $result;
    }

    /**
     * 查询退款单状态（现金订单退款）
     * 退款状态枚举：5-已退款 7-退款失败 8-用户退款完成
     * @param string $openid 用户openid
     * @param string $refundOrderId 退款单号
     * @return array 包含 status 和 order 信息
     */
    public function queryRefundOrder($openid, $refundOrderId)
    {
        $result = $this->queryOrder($openid, '', '', $refundOrderId);

        return $result;
    }

    /**
     * 轮询查询退款状态，直到退款完成或超时
     * @param string $openid 用户openid
     * @param string $refundOrderId 退款单号
     * @param int $maxRetries 最大重试次数
     * @param int $intervalMs 重试间隔（毫秒）
     * @return array ['success' => bool, 'status' => int, 'message' => string]
     */
    public function pollRefundStatus($openid, $refundOrderId, $maxRetries = 6, $intervalMs = 3000)
    {
        for ($i = 0; $i < $maxRetries; $i++) {
            usleep($intervalMs * 1000);

            $result = $this->queryOrder($openid, '', '', $refundOrderId);

            \think\Log::info('[VirtualPay] 轮询退款状态 refund_order_id=' . $refundOrderId . ', 第' . ($i + 1) . '次, result=' . json_encode($result));

            if (isset($result['errcode']) && $result['errcode'] !== 0) {
                if ($result['errcode'] === 268490011) {
                    continue;
                }
                return [
                    'success' => false,
                    'status'  => -1,
                    'message' => '查询退款状态失败：' . ($result['errmsg'] ?? '未知错误'),
                ];
            }

            $status = isset($result['order']['status']) ? intval($result['order']['status']) : -1;

            if ($status === 8) {
                return [
                    'success' => true,
                    'status'  => $status,
                    'message' => '退款完成',
                ];
            }

            if ($status === 7) {
                return [
                    'success' => false,
                    'status'  => $status,
                    'message' => '退款失败',
                ];
            }

            if ($status === 5) {
                return [
                    'success' => true,
                    'status'  => $status,
                    'message' => '订单已退款',
                ];
            }
        }

        return [
            'success' => false,
            'status'  => -1,
            'message' => '退款状态查询超时，退款可能仍在处理中',
        ];
    }

    /**
     * 查询商家账户可提现余额
     * @return array
     */
    public function queryBizBalance()
    {
        $uri = '/xpay/query_biz_balance';
        $accessToken = $this->getAccessToken();
        $params = [
            'env' => intval($this->config['env']),
        ];
        $body = $this->encodeBody($params);
        $paySig = $this->generatePaySig($uri, $body);

        $url = self::API_BASE . $uri;
        $url .= '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig);

        $result = $this->httpPost($url, $body);

        return $result;
    }

    /**
     * 创建提现单
     * @param string $withdrawId 提现单号（长度[8,32]，只允许字母、数字、_、-）
     * @param string $amount 提现金额（单位元，例如 "0.01"，不传则全额提现）
     * @return array
     */
    public function createWithdrawOrder($withdrawId, $amount = '')
    {
        $uri = '/xpay/create_withdraw_order';
        $accessToken = $this->getAccessToken();
        $params = [
            'withdraw_no' => $withdrawId,
            'env'         => intval($this->config['env']),
        ];

        if ($amount !== '') {
            $params['withdraw_amount'] = $amount;
        }
        $body = $this->encodeBody($params);
        $paySig = $this->generatePaySig($uri, $body);

        $url = self::API_BASE . $uri;
        $url .= '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig);

        $result = $this->httpPost($url, $body);

        return $result;
    }

    /**
     * 查询提现单
     * @param string $withdrawId 提现单号
     * @return array
     */
    public function queryWithdrawOrder($withdrawId)
    {
        $uri = '/xpay/query_withdraw_order';
        $accessToken = $this->getAccessToken();
        $params = [
            'withdraw_no' => $withdrawId,
            'env'         => intval($this->config['env']),
        ];
        $body = $this->encodeBody($params);
        $paySig = $this->generatePaySig($uri, $body);

        $url = self::API_BASE . $uri;
        $url .= '?access_token=' . rawurlencode($accessToken) . '&pay_sig=' . rawurlencode($paySig);

        $result = $this->httpPost($url, $body);

        return $result;
    }

    /**
     * 生成提现单号
     * @return string
     */
    public function generateWithdrawNo()
    {
        return 'WD' . date('YmdHis') . str_pad(mt_rand(1, 99999), 5, '0', STR_PAD_LEFT);
    }

    /**
     * 获取虚拟支付客户端配置（供小程序端调用wx.requestVirtualPayment）
     * @param string $openid 用户openid
     * @param string $sessionKey 用户session_key
     * @param string $outTradeNo 商户订单号
     * @param int $amount 支付金额（分）
     * @param string $mode 支付模式 short_series_goods|short_series_coin
     * @param string $productId 道具ID（道具直购时必填）
     * @return array
     */
    public function getClientPayConfig($openid, $sessionKey, $outTradeNo, $amount, $mode = 'short_series_coin', $productId = '')
    {
        $env = $this->getClientPayEnv();
        $signData = [
            'offerId'      => $this->config['offer_id'],
            'buyQuantity'  => $this->getBuyQuantity($amount, $mode),
            'env'          => $env,
            'currencyType' => 'CNY',
            'outTradeNo'   => $outTradeNo,
            'attach'       => $outTradeNo,
        ];

        if ($mode === 'short_series_goods') {
            if (empty($productId)) {
                throw new Exception('道具直购模式缺少product_id');
            }
            $signData['productId'] = $productId;
            $signData['goodsPrice'] = $this->yuanToFen($amount);
        }

        $signDataJson = $this->encodeClientSignData($signData);
        $paySig = $this->generatePaySig('requestVirtualPayment', $signDataJson, $env);

        if (empty($sessionKey)) {
            throw new Exception('用户session_key不存在，请重新登录');
        }

        $signature = $this->generateUserSignature($sessionKey, $signDataJson);

        return [
            'signData'  => $signDataJson,
            'paySig'    => $paySig,
            'signature' => $signature,
            'mode'      => $mode,
        ];
    }

    /**
     * 生成支付签名（pay_sig）
     * @param string $uri 请求路径
     * @param string $body 实际请求体或signData字符串
     * @return string
     */
    public function generatePaySig($uri, $body, $env = null)
    {
        $appKey = $this->getAppKey($env);
        $signStr = $uri . '&' . $body;

        return hash_hmac('sha256', $signStr, $appKey);
    }

    /**
     * 获取当前环境的AppKey。
     * 沙箱AppKey未配置时兼容使用正式AppKey，和后台配置提示保持一致。
     * @return string
     * @throws Exception
     */
    protected function getAppKey($env = null)
    {
        $env = $env === null ? intval($this->config['env'] ?? 0) : intval($env);
        $appKey = $env === 0
            ? ($this->config['app_key'] ?? '')
            : ($this->config['sandbox_app_key'] ?? '');

        if ($env !== 0 && trim((string)$appKey) === '') {
            $appKey = $this->config['app_key'] ?? '';
        }

        $appKey = trim((string)$appKey);
        if ($appKey === '') {
            throw new Exception('虚拟支付AppKey未配置');
        }

        return $appKey;
    }

    /**
     * 获取客户端拉起虚拟支付环境。
     * iOS端由微信路由到Apple支付，而Apple支付不支持沙箱环境，只能使用现网环境。
     * @return int
     */
    protected function getClientPayEnv()
    {
        if (\app\common\library\Platform::getDeviceEnd() === 'ios') {
            return 0;
        }

        return intval($this->config['env'] ?? 0);
    }

    /**
     * 获取服务端用户态签名（需要从数据库获取session_key）
     * @param string $openid 用户openid
     * @param string $body 实际请求体
     * @return string
     */
    protected function getServerSignature($openid, $body)
    {
        $oauth = \app\common\model\user\Oauth::where([
            'openid'   => $openid,
            'provider' => 'Wechat',
            'platform' => 'wxMiniProgram'
        ])->find();

        if (!$oauth || empty($oauth->session_key)) {
            throw new Exception('用户session_key不存在，请重新登录');
        }

        return $this->generateUserSignature($oauth->session_key, $body);
    }

    /**
     * 生成用户态签名（signature）
     * @param string $sessionKey 用户session_key
     * @param string $body 实际请求体或signData字符串
     * @return string
     */
    public function generateUserSignature($sessionKey, $body)
    {
        return hash_hmac('sha256', $body, $sessionKey);
    }

    /**
     * 带自动重试的API调用（access_token失效时自动刷新重试）
     * @param callable $apiCall API调用闭包，接收 access_token 参数
     * @return array
     */
    protected function callApiWithRetry($apiCall)
    {
        $accessToken = $this->getAccessToken();
        $result = $apiCall($accessToken);

        if (isset($result['errcode']) && in_array($result['errcode'], [40001, 40014, 42001], true)) {
            \think\Log::warning('[VirtualPay] access_token失效，强制刷新重试 errcode=' . $result['errcode']);
            $accessToken = $this->getAccessToken(true);
            $result = $apiCall($accessToken);
        }

        return $result;
    }

    /**
     * 使用同一份JSON字符串参与签名和实际请求，避免序列化差异导致验签失败。
     * @param array $params
     * @return string
     */
    protected function encodeBody($params)
    {
        return json_encode($params, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    }

    /**
     * 编码wx.requestVirtualPayment使用的signData。
     * signData会逐字节参与paySig和signature计算，必须把同一个字符串原样传给前端。
     * @param array $params
     * @return string
     */
    protected function encodeClientSignData($params)
    {
        $items = [];
        foreach ($params as $key => $value) {
            $items[] = json_encode((string)$key, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)
                . ': '
                . json_encode($value, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
        }

        return '{' . implode(', ', $items) . '}';
    }

    /**
     * 获取wx.requestVirtualPayment购买数量。
     * 代币模式下需要带上后台配置的兑换比例，否则微信侧仍会按旧比例展示金币数量。
     * @param mixed $amount
     * @param string $mode
     * @return int
     * @throws Exception
     */
    protected function getBuyQuantity($amount, $mode)
    {
        if ($mode === 'short_series_goods') {
            return 1;
        }

        $originalPrice = floatval($amount);
        if ($originalPrice < 1 && $originalPrice > 0) {
            $originalPrice = 1;
        }

        $quantity = (int)round($originalPrice * self::getExchangeRate());
        if ($quantity <= 0) {
            throw new Exception('虚拟支付金额不合法');
        }

        return $quantity;
    }

    /**
     * 将系统订单金额（元）转换为微信接口要求的分。
     * @param mixed $amount
     * @return int
     */
    protected function yuanToFen($amount)
    {
        return intval(round(floatval($amount) * 100));
    }

    /**
     * 生成随机字符串
     * @param int $length 长度
     * @return string
     */
    protected function generateNonce($length = 32)
    {
        return \fast\Random::alnum($length);
    }

    /**
     * 生成商户订单号
     * @return string
     */
    public function generateOutTradeNo()
    {
        return 'VP' . date('YmdHis') . str_pad(mt_rand(1, 99999), 5, '0', STR_PAD_LEFT);
    }

    /**
     * HTTP GET 请求
     * @param string $url 请求地址
     * @param array $query 查询参数
     * @return array
     */
    protected function httpGet($url, $query = [])
    {
        if (!empty($query)) {
            $url .= (strpos($url, '?') !== false ? '&' : '?') . http_build_query($query);
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

        $response = curl_exec($ch);
        $error = curl_error($ch);
        curl_close($ch);

        if ($error) {
            return ['errcode' => -1, 'errmsg' => 'HTTP请求失败: ' . $error];
        }

        return json_decode($response, true);
    }

    /**
     * HTTP POST 请求
     * @param string $url 请求地址
     * @param string $body 请求体
     * @return array
     */
    protected function httpPost($url, $body)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_HTTPHEADER, [
            'Content-Type: application/json',
        ]);

        $response = curl_exec($ch);
        $error = curl_error($ch);
        curl_close($ch);

        if ($error) {
            return ['errcode' => -1, 'errmsg' => 'HTTP请求失败: ' . $error];
        }

        return json_decode($response, true);
    }

    /**
     * 判断当前是否为虚拟支付商品
     * @param string $goodsType 商品类型
     * @return bool
     */
    public static function isVirtualPayGoods($goodsType)
    {
        $config = \app\common\model\config\System::getConfig('virtual_pay');
        if (!$config) {
            return false;
        }

        $virtualGoodsTypes = self::normalizeVirtualGoodsTypes($config['virtual_goods_types'] ?? []);

        return in_array($goodsType, $virtualGoodsTypes, true);
    }

    /**
     * 判断当前平台和商品是否应使用虚拟支付
     * @param string $goodsType 商品类型
     * @return int 1-使用虚拟支付 0-不使用
     */
    public static function isUseVirtualPay($goodsType)
    {
        $config = \app\common\model\config\System::getConfig('virtual_pay');
        if (!$config || ($config['status'] ?? 'close') !== 'open') {
            return 0;
        }

        if (\app\common\library\Platform::getPlatform() !== 'wxMiniProgram') {
            return 0;
        }

        $virtualGoodsTypes = self::normalizeVirtualGoodsTypes($config['virtual_goods_types'] ?? []);
        if (empty($virtualGoodsTypes)) {
            return 0;
        }

        $result = in_array($goodsType, $virtualGoodsTypes, true) ? 1 : 0;

        \think\Log::info('[VirtualPay] isUseVirtualPay 判断 goods_type=' . $goodsType . ', virtual_goods_types=' . json_encode($virtualGoodsTypes) . ', result=' . $result);

        return $result;
    }

    /**
     * 获取人民币与代币兑换比例。
     * @return int
     */
    public static function getExchangeRate()
    {
        $config = \app\common\model\config\System::getConfig('virtual_pay');
        $rate = isset($config['exchange_rate']) ? intval($config['exchange_rate']) : 1;

        return in_array($rate, [1, 10, 100], true) ? $rate : 1;
    }

    /**
     * 按虚拟支付兑换比例转换价格。
     * @param mixed $price
     * @return string
     */
    public static function convertPrice($price)
    {
        $originalPrice = floatval($price);
        if ($originalPrice < 1 && $originalPrice > 0) {
            $originalPrice = 1;
        }
        return number_format($originalPrice * self::getExchangeRate(), 2, '.', '');
    }

    /**
     * 按虚拟支付兑换比例批量转换数组中的价格字段。
     * @param array $data
     * @param array $fields
     * @return array
     */
    public static function convertPriceFields($data, $fields = ['price', 'price_marking'])
    {
        foreach ($fields as $field) {
            if (isset($data[$field]) && $data[$field] !== '') {
                $data[$field] = self::convertPrice($data[$field]);
            }
        }

        return $data;
    }

    /**
     * 兼容历史配置中复选框值为数组、JSON字符串或逗号字符串的情况。
     * @param mixed $value
     * @return array
     */
    protected static function normalizeVirtualGoodsTypes($value)
    {
        if (is_string($value)) {
            $value = trim($value);
            $decoded = json_decode($value, true);
            if (json_last_error() === JSON_ERROR_NONE && is_array($decoded)) {
                $value = $decoded;
            } elseif ($value === '') {
                $value = [];
            } else {
                $value = explode(',', $value);
            }
        }

        if (!is_array($value)) {
            return [];
        }

        $list = [];
        foreach ($value as $item) {
            $item = trim((string)$item);
            if ($item !== '') {
                $list[] = $item;
            }
        }

        return array_values(array_unique($list));
    }

    /**
     * 获取虚拟支付配置
     * @return array|false
     */
    public function getConfig()
    {
        return $this->config;
    }
}