<?php

namespace app\api\complex;

use think\Exception;

/**
 * 快手
 */
class Kuaishou implements ComplexInterface
{
    private $channel = 'jcyx';
    private $open_url = "https://open.kuaishou.com/";
    private $pay_url = "https://allin.kuaishoupay.com/";
    private $qmPrivateKey = ''; // 祈盟公钥
    private $ksPublicKey = ''; // 快手私钥

    // 渠道效验
    public function getSpecialParam($data,$polyChannelGame = []){

        if (!$paramArr = json_decode($polyChannelGame['param'], true)) {
            return false;
        }
        $param = [
            'app_id' => $paramArr['app_id'],
            'game_id' => $data['user_id'],
            'game_token' => $data['channel_token'],
        ];
        $result = getHttpGet($this->open_url . 'game/user_info/v2', $param);
        $res = json_decode($result, true);
        if ($res['result'] == 1) {
            return $data['user_id'];
        } else {
            return false;
        }
    }
    
    // 登陆效验
    public function checkLogin($data, $polyChannelGame = [])
    {
        return ['user_id' => $data['user_id']];
    }

    // ## 下单
    public function getOrder($data)
    {
        if (!$channelConfig = json_decode($data['channel_info']['param'], true)) {
            return false;
        }

        if(empty($data['extparam']) || empty($data['extparam']['user_id']) || empty($data['extparam']['channel_id'])){
            return ['code' => -200, 'msg' => '登录失效，请重新登录！', 'param' => []];
        }

        $requiredKeys = ['roleid', 'rolename', 'rolelevel', 'serverid', 'server_name', 'product_id', 'amount', 'notify_url'];
        $missingKeys = checkDataHasKeys($data, $requiredKeys);
        if (!empty($missingKeys)) {
            return ['code' => -200, 'msg' => '缺失参数：' . implode(', ', $missingKeys), 'param' => []];
        }

        try {
            $param = [
                "app_id" => $channelConfig['app_id'],
                "channel_id" => $data['extparam']['channel_id'],
                "game_id" => $data['extparam']['user_id'],
                "role_id" => $data['roleid'],
                "role_name" => $data['rolename'],
                "role_level" => $data['rolelevel'],
                "server_id" => $data['serverid'],
                "server_name" => $data['server_name'],
                "product_id" => $data['product_id'],
                "product_name" => $data['product_name']??'',
                "product_desc" => $data['product_desc']??'',
                "money" => formatYuanToFen($data['amount']),
                "currency_type" => 'CNY',
                "notify_url" => $data['notify_url'],
                "extension" => json_encode(['order_id' => $data['pay_info']['orderid']]),
                "user_ip" => $data['pay_info']['ip'],
                "third_party_trade_no" => $data['pay_info']['orderid'],
            ];
            $param['sign'] = $this->handleSIgn($param, $this->getKeyData('pay'));

        }catch (Exception $e){
            return ['code' => -200, 'msg' => $e->getMessage()];
        }
        return ['code' => 200, 'msg' => 'success', 'param' => $param];
    }
    
    // 回调订单参数
    public function getData($data)
    {
        $orderData = json_decode($data['extension'], true);
        if(empty($orderData['order_id'])){
            return false;
        }
        return [
            'orderid' => $orderData['order_id'],//我方聚合订单
            'amount' => formatFenToYuan($data['money']),  // 充值金额(单位：元)
            'sub_orderid' => $data['allin_trade_no'],//渠道订单
        ];
    }
    // 回调效验
    public function paySign($data, $polyChannelGame = [])
    {
        // 回调范例：{"app_id":"ks684828619578671316","role_id":"202005201314","server_id":"1","product_id":"kdzz_goods_001","money":"1","extension":"{\"order_id\":\"CMWL17452303393425188518\"}","allin_trade_no":"AI677228795252780746","data":"{\"environment\":\"PRODUCTION\"}","sign":"k0SSvITO06zSsC74nwWnePYe0cFyoneAlYeMGDSDx9ZZr4Lqal\/LWFRRMQbL1hxhQ4VcUpOyqpY+B5h7U1KsgO0gh\/6VQDK0ZbMrxP8RnGnalo5ua1d+FkiIYMcSlx\/5848XAC4GbHRCLUClAE+IQ4B4s6djxv5Usujvma\/4gIwW53TWJrbU+F3Pzi0G9arMoRFkl9fqgO1nEtSDeX8oZH1+cOHFoONIkZXa4z+Y7sErC0FuJHOKQSznzSa5iAcgEXqG1cfCvLo0nVRDoyJ\/AIb36GEerHzK0RomXd+5LrHyf\/zyE4VJzpgh\/JaslcSC7vQUf7MrqmJqDnHSHSCE4w=="}
        try {
            $requiredKeys = ['app_id', 'role_id', 'server_id', 'product_id', 'money', 'extension', 'allin_trade_no', 'sign'];
            $missingKeys = checkDataHasKeys($data, $requiredKeys);
            if (!empty($missingKeys)) {
                return "ERROR: 回调参数不匹配！";
            }

            $param = [
                'app_id' => $data['app_id'],
                'role_id' => $data['role_id'],
                'server_id' => $data['server_id'],
                'product_id' => $data['product_id'],
                'money' => $data['money'],
                'extension' => $data['extension'],
                'allin_trade_no' => $data['allin_trade_no'],
                'data' => $data['data']??'',
                'notify_detail' => $data['notify_detail']??'',
                'sign' => $data['sign'],
            ];

            $result = $this->handleSignVerify($param, $this->getKeyData('notify'), $param['sign']);
            if ($result) {
                return true;
            }
        } catch (Exception $e){
            return "ERROR: ".$e->getMessage();
        }
        return false;
    }
    public function getFail($msg = '')
    {
        echo 'fail:'.$msg;
        exit();
    }
    public function getSuccess($msg = '')
    {
        echo 'success';
        exit();
    }


    /**
     * 设置需要存储的数据
     *
     * @param $input 请求参数
     * @return array
     */
    public function setParam($input){
        if($input == '' || is_null($input)) return "";

        return [
            "user_id" => $input['user_id'],
            "channel_id" => $input['extparam'],
        ];
    }

    /**
     * 获取签名秘钥
     *
     * @param $type 类型 pay|notify
     * @return string
     */
    public function getKeyData($type = 'pay')
    {
        $key_file = APP_PATH . 'common/config/complex/qm_private_key.pem';
        if ($type == 'notify') {
            $key_file = APP_PATH . 'common/config/complex/kuaishou_public.pem';
        }

        if (!file_exists($key_file)) {
            throw new Exception('签名秘钥文件不存在');
        }

        return file_get_contents($key_file);
    }

    /**
     * 处理签名数据
     *
     * @param $data
     *
     * @return string
     */
    public function handleSignData($data){
        ksort($data);
        $signString = '';
        foreach ($data as $key => $value) {
            if($key == 'sign' || $value == ''){
                continue;
            }
            if ($signString !== '') {
                $signString .= '&';
            }
            $signString .= $key . '=' . $value;
        }
        return $signString;
    }
    /**
     * 使用 RSA 私钥 + SHA512 签名数组
     *
     * @param array $data 要签名的数组
     * @param string $privateKey 私钥内容（PEM格式）
     * @return string Base64 编码签名字符串
     */
    function handleSign(array $data, string $privateKey): string
    {

        $signString = $this->handleSignData($data);
        $pkey = openssl_pkey_get_private($privateKey);
        if (!$pkey) {
            throw new Exception('无效的 RSA 私钥');
        }

        $signature = '';
        $success = openssl_sign($signString, $signature, $pkey, OPENSSL_ALGO_SHA512);
        openssl_free_key($pkey);

        if (!$success) {
            throw new Exception('签名失败');
        }

        // 6. 返回 Base64 编码后的签名
        return base64_encode($signature);
    }

    /**
     * 签名效验
     *
     * @param array  $data
     * @param string $publicKey
     * @param string $signstr
     *
     * @return string
     */
    function handleSignVerify(array $data, string $publicKey, string $signstr): string
    {
        $signString = $this->handleSignData($data);
        $public_key_res = openssl_get_publickey($publicKey);
        $res = openssl_verify($signString, base64_decode($signstr), $public_key_res, OPENSSL_ALGO_SHA512);
        if($res == 1){
            return true;
        }
        return false;
    }
}