<?php
namespace common\services;

use common\helpers\FuncHelper;
use yii\base\Exception;
use yii\helpers\Json;

class EplPayService
{
    private static $instance = null;
    public $eplConfig;
    public $wechatConfig;

    private function __clone()
    {

    }

    private function __construct($module = null)
    {
        $eplConfig = \Yii::$app->params['eplpay'];
        if(!$eplConfig['customerCode'] || !$eplConfig['url']){
            throw new Exception('缺少易票联相关配置');
        }
        $this->eplConfig   = $eplConfig;
        $this->wechatConfig = \Yii::$app->params['wechat'];
    }


    public static function getInstance($module = null)
    {
        if(empty(self::$instance)){
            self::$instance = new self($module);
        }
        return self::$instance;
    }

    // 微信小程序支付
    public function WxJsapiPayment($params){
        $url = $this->eplConfig['url'].'/api/txs/pay/WxJSAPIPayment';
        $param = [
            'outTradeNo' => $params['order_no'],
            'customerCode' => $this->eplConfig['customerCode'],
            'appId' => $this->wechatConfig['app_id'],
            'openId' => $params['openId'],
            'orderInfo' => $params['orderInfo'],
            'payAmount' => bcmul($params['total_pay_price'], 100, 0),
            'payCurrency' => 'CNY',
            'payMethod' => 35,
            'notifyUrl' => $this->eplConfig['pay_notify_url'],
            'transactionStartTime' => date('YmdHis'),
            'areaInfo' => '330102',
            'nonceStr' => FuncHelper::uuid(),
            'version' => '3.0'
        ];
        $sign = $this->sign(Json::encode($param));
        $result = $this->http_post_json($url,Json::encode($param),$sign);
//        ds(['url' => $url, 'param' => Json::encode($param), 'sign' => $sign, 'time' => date('YmdHis'), 'result' => $result]);
        if(!$result || $result[0] != 200){
            throw new Exception('获取支付参数失败');
        }
        return Json::decode($result[1]);
    }

    //查询支付结果
    public function queryPayment($params){
        $url = $this->eplConfig['url'].'/api/txs/pay/PaymentQuery';
        $param = [
            'outTradeNo' => $params['pay_order_no'],
            'customerCode' => $this->eplConfig['customerCode'],
            'nonceStr' => FuncHelper::uuid()
        ];
        $sign = $this->sign(Json::encode($param));
        $result = $this->http_post_json($url,Json::encode($param),$sign);
        if(!$result || $result[0] != 200){
            throw new Exception('查询支付结果失败');
        }
        return Json::decode($result[1]);
    }

    // 退款
    public function refund($params){
        $url = $this->eplConfig['url'].'/api/txs/pay/Refund/V2';
        $param = [
            'outRefundNo' => $params['refund_no'],
            'customerCode' => $this->eplConfig['customerCode'],
            'transactionNo' => $params['transaction_id'],
            'amount' => bcmul($params['total_pay_price'], 100, 0),
            'refundAmount' => bcmul($params['refund_price'], 100, 0),
            'notifyUrl' => $this->eplConfig['refund_notify_url'],
            'transactionStartTime' => date('YmdHis'),
            'nonceStr' => FuncHelper::uuid(),
            'version' => '3.0'
        ];
        $sign = $this->sign(Json::encode($param));
        $result = $this->http_post_json($url,Json::encode($param),$sign);
        if(!$result || $result[0] != 200){
            throw new Exception('退款失败');
        }
        return Json::decode($result[1]);
    }

    //查询退款结果
    public function queryRefund($params){
        $url = $this->eplConfig['url'].'/api/txs-query/refundOrderQuery';
        $param = [
            'outRefundNo' => $params['refund_no'],
            'customerCode' => $this->eplConfig['customerCode'],
            'nonceStr' => FuncHelper::uuid()
        ];
        $sign = $this->sign(Json::encode($param));
        $result = $this->http_post_json($url,Json::encode($param),$sign);
        if(!$result || $result[0] != 200){
            throw new Exception('查询退款结果失败');
        }
        return Json::decode($result[1]);
    }

    //单笔提现
    public function withDraw($params){
        // 构建请求提现接口的URL
        $url = $this->eplConfig['url'].'/api/txs/pay/withdrawalToCard';

        // 构建请求参数数组
        $param = [
            // 设置商户订单号
            'outTradeNo' => $params['order_no'],
            // 设置客户代码
            'customerCode' => $this->eplConfig['customerCode'],
            // 设置提现金额，将申请的现金金额乘以100，转换为分
            'amount' => bcmul($params['apply_cash'], 100, 0),
            // 设置到账类型，0表示当日到账
            'arrivalType' => 0,
            // 设置手续费扣除方式，内扣或外扣 inner内扣  outer外扣
            'procedureType' => 'inner',
            // 设置开户人姓名，使用公钥加密
            'bankUserName' => $this->public_encrypt($params['bank_user_name']),
            // 设置银行卡号，使用公钥加密
            'bankCardNo' => $this->public_encrypt($params['bank_card']),
            // 设置银行名称
            'bankName' => $params['bank_name'],
            // 设置账户类型，对公、对私或存折 1对公 2对私 5存折
            'bankAccountType' => $params['bank_account_type'],
            // 设置服务器回调通知URL
            'notifyUrl' => $this->eplConfig['withdraw_notify_url'],
            // 设置支付货币类型
            'payCurrency' => 'CNY',
            // 设置随机字符串
            'nonceStr' => FuncHelper::uuid()
        ];

        // 根据银行账户类型和银行卡号的前两位判断是否需要设置银行代码
        if($params['bank_account_type'] != '2' || substr($params['bank_card'],0,2) != '62'){
            $param['bankNo'] = $params['bank_no'];
        }

        // 生成请求的签名
        $sign = $this->sign(Json::encode($param));

        // 发起提现请求
        $result = $this->http_post_json($url,Json::encode($param),$sign);

        // 验证请求结果，如果结果为空或HTTP状态码不是200，则抛出异常
        if(!$result || $result[0] != 200){
            throw new Exception('提现失败');
        }

        // 解析并返回提现请求的结果
        return Json::decode($result[1]);
    }

    //查询提现结果
    public function queryWithdraw($params){
        $url = $this->eplConfig['url'].'/api/txs/pay/withdrawalToCardQuery';
        $param = [
            'outTradeNo' => $params['withdraw_order_no'],
            'customerCode' => $this->eplConfig['customerCode'],
            'nonceStr' => FuncHelper::uuid()
        ];
        $sign = $this->sign(Json::encode($param));
        $result = $this->http_post_json($url,Json::encode($param),$sign);
        if(!$result || $result[0] != 200){
            throw new Exception('查询提现结果失败');
        }
        return Json::decode($result[1]);
    }

    protected function sign($data) {
        $certs = [];
        openssl_pkcs12_read(file_get_contents($this->eplConfig['rsaPrivateKeyFilePath']), $certs, $this->eplConfig['password']); //其中password为你的证书密码
    
        if(!$certs){
            throw new Exception('请检查RSA私钥配置'. openssl_error_string());
        }
        
        openssl_sign($data, $sign, $certs['pkey'], OPENSSL_ALGO_SHA256);
        
        $sign = base64_encode($sign);
        return $sign;
    }

    protected function http_post_json($url, $jsonStr, $sign)
    {
        $ch = curl_init();
        $headers = array(
            'Content-Type: application/json; charset=utf-8',
            'Content-Length: ' . strlen($jsonStr),
            'x-efps-sign-no:'.$this->eplConfig['signNo'],
            'x-efps-sign-type:SHA256withRSA',
            'x-efps-sign:'.$sign,
            'x-efps-timestamp:'.date('YmdHis'),
        );
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonStr);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);  // 跳过检查        
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);  // 跳过检查
        //curl_setopt($ch, CURLOPT_HEADER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        
        $response = curl_exec($ch);
        
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        
        return [$httpCode, $response];
    }

    // 公钥加密
    protected function public_encrypt($data)
    {
        //读取公钥文件
        $pubKey = file_get_contents($this->eplConfig['publicKeyFilePath']);
        
        $res = openssl_get_publickey($pubKey);
        
        if(!$res){
            throw new Exception('RSA公钥错误。请检查公钥文件格式是否正确');
        }
        
        $crypttext = "";
        
        openssl_public_encrypt($data,$crypttext, $res );
       
        if(!$this->checkEmpty($this->eplConfig['publicKeyFilePath'])) {
            //释放资源
            if (PHP_VERSION_ID < 80000) {
                openssl_free_key($res);
            }
        }
        
        return(base64_encode($crypttext));
    }

    /**
     * 校验$value是否非空
     *  if not set ,return true;
     *    if is null , return true;
     **/
    protected function checkEmpty($value) {
        if (!isset($value))
            return true;
            if ($value === null)
                return true;
                if (trim($value) === "")
                    return true;
                    
                    return false;
    }

}