package com.gear.oa.utils;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONArray;
import com.alibaba.fastjson2.JSONObject;
import com.gear.oa.domain.vo.OaExpressVo;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.digest.DigestUtils;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;

public class StoRouteQueryUtil {
    // 请填写你自己的key/secret
    private static final String APP_KEY = "CAKDSqybdwbzlUC";
    private static final String APP_SECRET = "wGRMVXwIf8sp4m4W6tWJcOaDfY7EPblQ";
    private static final String FROM_CODE = "CAKDSqybdwbzlUC"; // 你的from_code
    private static final String API_URL = "https://cloudinter-linkgateway.sto.cn/gateway/link.do";

    // 申通签名算法 body+appSecret，MD5后Base64
    public static String sign(String body, String secret) {
        String text = body + secret;
        byte[] md5 = DigestUtils.md5(text);
        return Base64.encodeBase64String(md5);
    }

    /**
     * 查询申通轨迹，支持批量单号
     * @param waybillNos 运单号集合
     * @return 查询结果JSON
     */
    public static String queryRoute(List<String> waybillNos) {
        try {
            // 构造content参数
            JSONObject content = new JSONObject();
            content.put("order", "asc");
            JSONArray waybillNoList = new JSONArray();
            for (String no : waybillNos) waybillNoList.add(no);
            content.put("waybillNoList", waybillNoList);
            String contentStr = content.toJSONString();

            // 构造表单参数字符串
            StringBuilder form = new StringBuilder();
            form.append("api_name=STO_TRACE_QUERY_COMMON");
            form.append("&content=").append(URLEncoder.encode(contentStr, "UTF-8"));
            form.append("&from_appkey=").append(APP_KEY);
            form.append("&from_code=").append(APP_KEY);
            form.append("&to_appkey=sto_trace_query");
            form.append("&to_code=sto_trace_query");
            form.append("&data_digest=").append(URLEncoder.encode(sign(contentStr, APP_SECRET), "UTF-8"));

            System.out.println("申通表单请求体：" + form);

            URL url = new URL(API_URL);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setUseCaches(false);
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
            OutputStream out = conn.getOutputStream();
            out.write(form.toString().getBytes(StandardCharsets.UTF_8));
            out.flush();
            out.close();
            StringBuilder sbResult = new StringBuilder();
            if (200 == conn.getResponseCode()) {
                BufferedReader responseReader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
                String readLine;
                while ((readLine = responseReader.readLine()) != null) {
                    sbResult.append(readLine).append("\n");
                }
                responseReader.close();
            }
            return sbResult.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 解析申通返回数据，转为OaExpressVo列表
     */
    public static OaExpressVo parseData(String result) {
        if (result == null || result.trim().isEmpty()) {
            return null;
        }
        // 新增：如果返回是XML，直接打印并返回null
        if (result.trim().startsWith("<")) {
            System.err.println("申通返回XML错误：" + result);
            return null;
        }
        try {
            JSONObject json = JSON.parseObject(result);
            JSONObject data = json.getJSONObject("data");
            if (data == null) return null;
            for (String waybillNo : data.keySet()) {
                JSONArray arr = data.getJSONArray(waybillNo);
                if (arr == null || arr.isEmpty()) continue;
                JSONObject last = arr.getJSONObject(arr.size() - 1);
                OaExpressVo vo = new OaExpressVo();
                vo.setExpressCode(last.getString("waybillNo"));
                // 设置时间
                String opTime = last.getString("opTime");
                if (opTime != null) {
                    try {
                        // 解析时间格式 "2025-07-27 13:01:00"
                        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
                        vo.setAcceptTime(sdf.parse(opTime));
                    } catch (Exception e) {
                        vo.setAcceptTime(null);
                    }
                }
                // 设置状态 - 使用scanType作为状态
                vo.setFirstStatusName(last.getString("memo"));
                // 设置备注 - 使用memo作为备注
                vo.setRemark(last.getString("scanType"));
                return vo;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    // main方法测试
    public static void main(String[] args) {
        List<String> waybillNos = new ArrayList<>();
        waybillNos.add("777326763655544"); // 测试单号
        String result = queryRoute(waybillNos);
        System.out.println("申通原始返回：" + result);
        OaExpressVo vo = parseData(result);
        if (vo != null) {
            System.out.println("解析后：" + vo);
        } else {
            System.out.println("未解析到数据");
        }
    }
}