<?php 

namespace App\Services\Payment;

use GuzzleHttp\Client;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Psr7\Response;
use App\Services\BaseService;

class SanJinService extends BaseService
{
    const REQUEST_URL = 'https://jkapi-sanjin.jkcbb.com/';

    
    const PRODUCT_TEST = 'T888'; // 测试支付通道

    public static $CHANNEL = ['test' => '测试' ,'zfb' => '支付宝'];

    public static $PRODUCT = [
        'T888' => [
            'type' => 'test',
            'rate' => 0.02,
            'max' => 5000,
            'min' => 10
        ],
        'ZPB001' => [
            'type' => 'zfb',
            'rate' => 0.085,
            'max' => 200,
            'min' => 100
        ],
        'ZPB002' => [
            'type' => 'zfb',
            'rate' => 0.057,
            'max' => 200,
            'min' => 1000
        ],
        'ZPB003' => [
            'type' => 'zfb',
            'rate' => 0.052,
            'max' => 1000,
            'min' => 3000
        ],
        'ZPB004' => [
            'type' => 'zfb',
            'rate' => 0.042,
            'max' => 3000,
            'min' => 20000
        ],
    ];

    // 获取商户ID
    public static function getMerchantId()
    {
        return config('app.tree_pay_mch_id');
    }
    // 获取商户秘钥
    public static function getSecret()
    {
        return config('app.tree_pay_key');
    }

    // 获取异步的通知地址
    public static function getNotifyUrl()
    {
        $host = config('app.url');
        return $host.'/api/pay/harvest';
    }


    /**
     * @description: 获取请求客户端
     * @return {*}
     */
    public static function getClient(): Client
    {
        return new Client([
            'base_uri' => self::REQUEST_URL,
            'timeout' => 5.0,
        ]);
    }

    // 签名
    public static function signature($params = [],$must = [])
    {
        if($must){
            foreach($params as $k => $v){
                if(!in_array($k,$must)){
                    unset($params[$k]);
                }
            }
        }
        ksort($params, SORT_STRING);
     

        $parts = [];
        foreach($params as $k => $v){
            array_push($parts,$k.'='.$v);
        }
        $mch_key = self::getSecret();
        $parts[] = "key=".$mch_key;

        $sign = md5(implode('&',$parts));
        return $sign;
    }

    /**
     * @description: 发起支付订单
     * @param {*} $amount 金额单位分
     * @param {*} $orderNo  订单号
     * @param {*} $type 支付通道
     * @return {*}
     */    
    public static function pay($amount,$orderNo,$type = self::PRODUCT_TEST)
    {

        $must = ['mchId','productId','outTradeNo','amount','reqTime','notifyUrl'];
        $mch_id = self::getMerchantId();

        
        $data = [];
        $data['mchId'] = $mch_id;
        $data['amount'] = $amount;
        $data['outTradeNo'] = $orderNo;
        $data['notifyUrl'] = self::getNotifyUrl();
        $data['reqTime'] = time() * 1000;
        $data['productId'] = $type;

        
        $data['sign'] = self::signature($data,$must);
        $client = self::getClient();
        $response = $client->post('api/v1/pay/unifiedOrder', [
            'json' => $data,
            'headers' => [
                'Content-Type' => 'application/json',
            ]
        ]);

        $body = $response->getBody();
        return json_decode($body->getContents(), true);
    }
}