<?php


namespace app\api\service;


use think\Env;
use WeChatPay\Builder;
use WeChatPay\Crypto\Rsa;
use WeChatPay\Formatter;
use WeChatPay\Util\PemUtil;

class WxService extends BaseService
{

    private static function wxAppConfig()
    {
        return array_merge([
            "appid" => Env::get("wxpay.wx_app_appid") ?? "",
            "app_secret" => Env::get("wxpay.wx_app_secret") ?? "",
        ], WxService::wxMchConfig());
    }

    private static function wxWebConfig()
    {
        return array_merge([
            "appid" => Env::get("wxpay.wx_h5_appid") ?? "",
            "app_secret" => Env::get("wxpay.wx_h5_secret") ?? "",
        ], WxService::wxMchConfig());
    }

    private static function wxAppletConfig()
    {
        return array_merge([
            "appid" => Env::get("wxpay.wx_applet_appid") ?? "",
            "app_secret" => Env::get("wxpay.wx_applet_secret") ?? "",
        ], WxService::wxMchConfig());
    }

    private static function wxMchConfig()
    {
        return [
            "mch_id" => Env::get("wxpay.wx_mch_id") ?? "",
            "mch_v3_api" => Env::get("wxpay.wx_mch_v3_api") ?? "",
            "mch_certificate_serial" => Env::get("wxpay.wx_mch_certificate_serial") ?? "",
            "mch_private_key_file_path" => ROOT_PATH . "certificate" . DS . "wx" . DS . "apiclient_key.pem",
            "platform_certificate_file_path" => ROOT_PATH . "certificate" . DS . "wx" . DS . "apiclient_cert.pem"
        ];
    }

    public static function wxPayConfigByType($type = "app")
    {
        if ($type == "app")
            return self::wxAppConfig();
        if ($type == "web")
            return self::wxWebConfig();
        return self::wxAppletConfig();
    }

    /**
     * h5获取微信用户信息
     * @param $code
     * @return \SResult
     */
    public function wxLoginByWeb($code)
    {
        if (!$code)
            return $this->fail("code不存在!");
        $config = WxService::wxWebConfig();
        $s_result = $this->curl_get("https://api.weixin.qq.com/sns/oauth2/access_token?appid={$config["appid"]}&secret={$config["app_secret"]}&code={$code}&grant_type=authorization_code");
        if (0 === $s_result->code())
            return $s_result;
        $code_of_data = $s_result->data();
        // 请求用户信息
        $userinfo_result = $this->curl_get("https://api.weixin.qq.com/sns/userinfo?access_token={$code_of_data['access_token']}&openid={$code_of_data['openid']}");
        if (0 === $userinfo_result->code())
            return $userinfo_result;
        $userinfo_of_data = $userinfo_result->data();
        $merge_array = array_merge($code_of_data, $userinfo_of_data);
        return $this->ok($merge_array);
    }

    /**
     * Applet获取微信用户信息
     * @param $code
     * @return \SResult
     */
    public function wxLoginByApplet($code)
    {
        if (!$code)
            return $this->fail("code不存在!");
        $config = WxService::wxAppletConfig();
        $s_result = $this->curl_get("https://api.weixin.qq.com/sns/jscode2session?appid={$config["appid"]}&secret={$config["app_secret"]}&js_code={$code}&grant_type=authorization_code");
        if (0 === $s_result->code())
            return $s_result;
        return $this->ok($s_result->data());
    }

    // curl get请求
    private function curl_get($url)
    {
        $curl = curl_init();
        // 设置抓取的url
        curl_setopt($curl, CURLOPT_URL, $url);
        // 设置头文件的信息作为数据流输出
        curl_setopt($curl, CURLOPT_HEADER, false);
        // 超时设置,以秒为单位
        curl_setopt($curl, CURLOPT_TIMEOUT, 1);
        // 设置请求头
        curl_setopt($curl, CURLOPT_HTTPHEADER, [
            'Accept: application/json',
        ]);
        // 设置获取的信息以文件流的形式返回，而不是直接输出。
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        // 执行命令
        $data = curl_exec($curl);
        $error = curl_error($curl);
        curl_close($curl);
        // 显示错误信息
        if ($error)
            return $this->fail($error);
        $response = json_decode($data, true);
        if (isset($response["errcode"]) && $response["errcode"] !== 0)
            return $this->fail($response["errmsg"]);
        return $this->ok($response);
    }

    private function sign($message, $key_path)
    {
        $mch_private_key = file_get_contents($key_path);
        openssl_sign($message, $raw_sign, $mch_private_key, 'sha256WithRSAEncryption');
        return base64_encode($raw_sign);
    }

    public function instance($type = 'web')
    {
        $config = WxService::wxPayConfigByType($type);
        // 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["mch_private_key_file_path"];
        $merchantPrivateKeyInstance = Rsa::from($merchantPrivateKeyFilePath, Rsa::KEY_TYPE_PRIVATE);
        // 从本地文件中加载「微信支付平台证书」，用来验证微信支付应答的签名
        $platformCertificateFilePath = "file://" . $config["platform_certificate_file_path"];
        $platformPublicKeyInstance = Rsa::from($platformCertificateFilePath, Rsa::KEY_TYPE_PUBLIC);
        // 从「微信支付平台证书」中获取「证书序列号」
        $platformCertificateSerial = PemUtil::parseCertificateSerialNo($platformCertificateFilePath);
        // 构造一个 APIv3 客户端实例
        return Builder::factory([
            'mchid' => $config["mch_id"],// 商户号
            'serial' => $config["mch_certificate_serial"],// 「商户API证书」的「证书序列号」
            'privateKey' => $merchantPrivateKeyInstance,
            'certs' => [
                $platformCertificateSerial => $platformPublicKeyInstance,
            ],
        ]);
    }

    public function webPay($openid, $out_trade_no, $description, $amount)
    {
        try {
            $config = WxService::wxWebConfig();
            $body = [
                'appid' => $config["appid"],
                'mchid' => $config['mch_id'],
                'description' => $description,
                'out_trade_no' => $out_trade_no,
                'notify_url' => "https://billiards.xunsoftware.com/api.php/api/callback/wxpay",
                'amount' => [
                    'total' => fixed2Float($amount * 100),
                    'currency' => 'CNY'
                ],
                'payer' => [
                    "openid" => $openid
                ]
            ];
            $resp = $this->instance("web")
                ->chain('v3/pay/transactions/jsapi')
                ->post(['json' => $body]);
            if (200 === $resp->getStatusCode()) {
                $resp_data = json_decode($resp->getBody()->__toString(), true);
                $res = [
                    'appId' => $config['appid'],
                    'timeStamp' => time(),
                    'nonceStr' => Formatter::nonce(),
                    'package' => 'prepay_id=' . $resp_data['prepay_id'],
                    'signType' => 'RSA'
                ];
                $sign = $this->sign($res['appId'] . "\n" . $res["timeStamp"] . "\n" . $res["nonceStr"] . "\n" . $res["package"] . "\n", $config["mch_private_key_file_path"]);
                $res["paySign"] = $sign;
                return $this->ok($res);
            }
            return $this->fail("发起支付失败!");
        } catch (\Exception $e) {
            // 进行错误处理
            if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
                $r = $e->getResponse();
                return $this->fail($r->getBody()->__toString());
            }
            return $this->fail($e->getMessage());
        }
    }

    public function webRefund($out_trade_no, $description, $total_amount, $refund_amount)
    {
        try {
            $body = [
                'out_trade_no' => $out_trade_no,
                "out_refund_no" => $out_trade_no,
                "reason" => $description,
                'notify_url' => "https://billiards.xunsoftware.com/api.php/api/callback/wxrefund",
                'amount' => [
                    'refund' => fixed2Float($refund_amount * 100),
                    'total' => fixed2Float($total_amount * 100),
                    'currency' => 'CNY'
                ],
            ];
            $resp = $this->instance("web")
                ->chain('v3/refund/domestic/refunds')
                ->post(['json' => $body]);
            if (200 === $resp->getStatusCode()) {
                return $this->ok(json_decode($resp->getBody()->__toString(), true), "发起退款成功!");
            }
            return $this->fail("发起退款失败!");
        } catch (\Exception $e) {
            // 进行错误处理
            if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
                $response = json_decode($e->getResponse()->getBody()->__toString(), true);
                return $this->fail($response["message"]);
            }
            return $this->fail($e->getMessage());
        }
    }

    public function appletPay($openid, $out_trade_no, $description, $amount)
    {
        try {
            $config = WxService::wxAppletConfig();
            $resp = $this->instance("applet")
                ->chain('v3/pay/transactions/jsapi')
                ->post(['json' => [
                    'appid' => $config["appid"],
                    'mchid' => $config['mch_id'],
                    'description' => $description,
                    'out_trade_no' => $out_trade_no,
                    'notify_url' => "https://billiards.xunsoftware.com/api.php/api/callback/wxpay",
                    'amount' => [
                        'total' => fixed2Float($amount * 100),
                        'currency' => 'CNY'
                    ],
                    'payer' => [
                        "openid" => $openid
                    ]
                ]]);
            if (200 === $resp->getStatusCode()) {
                $resp_data = json_decode($resp->getBody()->__toString(), true);
                $res = [
                    'appId' => $config['appid'],
                    'timeStamp' => time(),
                    'nonceStr' => Formatter::nonce(),
                    'package' => 'prepay_id=' . $resp_data['prepay_id'],
                    'signType' => 'RSA'
                ];
                $sign = $this->sign($res['appId'] . "\n" . $res["timeStamp"] . "\n" . $res["nonceStr"] . "\n" . $res["package"] . "\n", $config["mch_private_key_file_path"]);
                $res["paySign"] = $sign;
                return $this->ok($res);
            }
            return $this->fail("发起支付失败!");
        } catch (\Exception $e) {
            // 进行错误处理
            if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
                $r = $e->getResponse();
                return $this->fail($r->getBody()->__toString());
            }
            return $this->fail($e->getMessage());
        }
    }

    public function appletRefund($out_trade_no, $description, $total_amount, $refund_amount)
    {
        try {
            $body = [
                'out_trade_no' => $out_trade_no,
                'out_refund_no' => $out_trade_no,
                'reason' => $description,
                'notify_url' => 'https://billiards.xunsoftware.com/api.php/api/callback/wxrefund',
                'amount' => [
                    'refund' => fixed2Float($refund_amount * 100),
                    'total' => fixed2Float($total_amount * 100),
                    'currency' => 'CNY'
                ],
            ];
            $resp = $this->instance("applet")
                ->chain('v3/refund/domestic/refunds')
                ->post(['json' => $body]);
            if (200 === $resp->getStatusCode()) {
                return $this->ok(json_decode($resp->getBody()->__toString(), true), "发起退款成功!");
            }
            return $this->fail("发起退款失败!");
        } catch (\Exception $e) {
            // 进行错误处理
            if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
                $response = json_decode($e->getResponse()->getBody()->__toString(), true);
                return $this->fail($response["message"]);
            }
            return $this->fail($e->getMessage());
        }
    }

    public function appPay($openid, $out_trade_no, $description, $amount)
    {
        try {
            $config = WxService::wxAppConfig();
            $resp = $this->instance('app')
                ->chain('v3/pay/transactions/app')
                ->post(['json' => [
                    'appid' => $config["appid"],
                    'mchid' => $config['mch_id'],
                    'description' => $description,
                    'out_trade_no' => $out_trade_no,
                    'notify_url' => "https://billiards.xunsoftware.com/api.php/api/callback/wxpay",
                    'amount' => [
                        'total' => fixed2Float($amount * 100),
                        'currency' => 'CNY'
                    ],
                ]]);
            if (200 === $resp->getStatusCode()) {
                $resp_data = json_decode($resp->getBody()->__toString(), true);
                $res = [
                    "appid" => $config['appid'],
                    "partnerid" => $config['mch_id'],
                    "prepayid" => $resp_data['prepay_id'],
                    "package" => "Sign=WXPay",
                    "noncestr" => Formatter::nonce(),
                    "timestamp" => time(),
                ];
                $res['sign'] = $this->sign($res['appid'] . "\n" . $res["timestamp"] . "\n" . $res["noncestr"] . "\n" . $res["prepayid"] . "\n", $config["mch_private_key_file_path"]);
                return $this->ok($res);
            }
            return $this->fail("发起支付失败!");
        } catch (\Exception $e) {
            // 进行错误处理
            if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
                $r = $e->getResponse();
                $body = json_decode($r->getBody()->__toString(), true);
                return $this->fail($body['message']);
            }
            return $this->fail($e->getMessage());
        }
    }

    public function appRefund($out_trade_no, $description, $total_amount, $refund_amount)
    {
        try {
            $config = WxService::wxAppConfig();
            $body = [
                'appid' => $config["appid"],
                'mchid' => $config['mch_id'],
                'description' => $description,
                'out_trade_no' => $out_trade_no,
                "out_refund_no" => $out_trade_no,
                "reason" => $description,
                'notify_url' => "https://billiards.xunsoftware.com/api.php/api/callback/wxrefund",
                'amount' => [
                    'refund' => $refund_amount * 100,
                    "total" => $total_amount * 100,
                    'currency' => 'CNY'
                ]
            ];
            $resp = $this->instance("web")
                ->chain('v3/refund/domestic/refunds')
                ->post(['json' => $body]);
            if (200 === $resp->getStatusCode()) {
                return $this->ok(true, "发起退款成功!");
            }
            return $this->fail("发起退款失败!");
        } catch (\Exception $e) {
            // 进行错误处理
            if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
                $r = $e->getResponse();
                return $this->fail($r->getBody()->__toString());
            }
            return $this->fail($e->getMessage());
        }
    }


    public function deposit($openid, $out_batch_no, $batch_name, $batch_remark, $total_amount)
    {
        $config = self::wxWebConfig();
        try {
            $resp = $this->instance("web")
                ->chain('/v3/transfer/batches')
                ->post(['json' => [
                    'appid' => $config["mch_id"],
                    "out_batch_no" => $out_batch_no,
                    "batch_name" => $batch_name,
                    "batch_remark" => $batch_remark,
                    "total_amount" => fixed2Float($total_amount * 100),
                    'total_num' => 1,
                    'transfer_detail_list' => [
                        [
                            "out_detail_no" => $out_batch_no,
                            "transfer_amount" => fixed2Float($total_amount * 100),
                            "transfer_remark" => $batch_remark,
                            "openid" => $openid,
                        ]
                    ],
                ]]);
            if (200 === $resp->getStatusCode()) {
                return $this->ok(json_decode($resp->getBody()->__toString(), true), "提现成功!");
            }
            return $this->fail("提现失败!");
        } catch (\Exception $e) {
            // 进行错误处理
            if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
                $r = $e->getResponse();
                return $this->fail(json_decode($r->getBody()->__toString(), true));
            }
            return $this->fail($e->getMessage());
        }
    }


}