package cc.mrbird.febs.pay.service.impl;

import cc.mrbird.febs.common.entity.FebsResponse;
import cc.mrbird.febs.pay.model.UnipayDto;
import cc.mrbird.febs.pay.service.UnipayService;
import cc.mrbird.febs.pay.util.HttpRequester;
import cc.mrbird.febs.pay.util.HttpRespons;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.io.IOException;
import java.util.*;

@Slf4j
@Service
public class UnipayServiceImpl implements UnipayService {

    public static final String notifyUrl = "http://47.111.90.145:8800/api/unipay/unipayCallBack";

    @Override
    @Transactional
    public String unipay(UnipayDto unipayDto) {
        String key = "2e95f6a3e11e47fa8a4386d6aefe1735";/** md5密钥商户后台-商户中心-商户设置-密钥管理获取 必填！*/
        Map<String, String> map = new HashMap<String, String>();
        map.put("p0_Version", "1.0");/** 版本号 */
        map.put("p1_MerchantNo", "888118000001971");/** 商户编号 */
        map.put("p2_OrderNo", unipayDto.getOrderNo()); /**商户订单号*/
        map.put("p3_Amount", unipayDto.getAmount().toString());/**订单金额*/
        map.put("p4_Cur", "1"); /**交易币种 */
        map.put("p5_ProductName", unipayDto.getProductName()); /** 商品名称 */
        map.put("p9_NotifyUrl", notifyUrl); /** 服务器异步通知地址 */
        map.put("q1_FrpCode", unipayDto.getFrpCode()); /** 交易类型*/
        map.put("qa_TradeMerchantNo",unipayDto.getTradeMerchantNo()); /** 777开头的报备商户号   必填！*/
        map.put("q7_AppId", "wx42ce0fbc27965fe9"); /** 777开头的报备商户号   必填！*/

        String Strmap = createLinkStringByGet(map);
        // 签名
        String sign = "";
        sign = SignByMD5(Strmap, key);
        map.put("hmac", sign);/** 签名数据 */
        System.out.println("发送:" + JSON.toJSONString(map).toString());

        // post请求参数内容
        HttpRequester hr = new HttpRequester();
        HttpRespons HP = null;
        try {
            HP = hr.sendPost("https://www.joinpay.com/trade/uniPayApi.action", map);
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("接收返回参数：" + HP.getContent());
        Boolean result = false;
        try {
            result = nosign(HP.getContent(), key);
        } catch (Exception e) {
            e.printStackTrace();
        }
        if(result){
            return HP.getContent();
        }else{
            return "fail";
        }
    }


    //参数的拼接整理
    private String createLinkStringByGet(Map<String, String> params){
        // TODO Auto-generated method stub
        List<String> keys = new ArrayList<String>(params.keySet());
        Collections.sort(keys);
        String str1 ="";
        for(int i=0;i<keys.size();i++) {
            String key = keys.get(i);

            Object value = params.get(key);//(String) 强制类型转换
            if(value instanceof Integer) {
                value = (Integer)value;
            }
            if(i==keys.size()-1) {

                str1 = str1+value.toString();
            }else {

                str1 = str1+value;
            }
        }
        System.out.println("整理"+str1);
        return str1;
    }

    /**
     * MD5签名
     *
     * @param requestSign 请求签名串
     * @param merchantKey 商户秘钥
     */
    private String SignByMD5(String requestSign, String merchantKey) {

        String reqHmac = "";
        try {
            reqHmac = DigestUtils.md5Hex(requestSign + merchantKey).toUpperCase();
        } catch (Exception e) {}

        return reqHmac;
    }

    /**
     * 验证返回参数
     * @param hp
     * @param key
     * @return
     * @throws Exception
     */
    private boolean nosign(String hp, String key){
        System.out.println("接收到：" + hp);
        JSONObject myJson = JSONObject.parseObject(hp);
        Map m = myJson;

        // 返回hmac
        String returnHmac = (String) m.remove("hmac");
        System.out.println(m.toString());
        String Strmap = createLinkStringByGet(m);

        // 返回参数组装hmac
        String hmac1 = SignByMD5(Strmap, key);
        return hmac1.equalsIgnoreCase(returnHmac);

    }

}