package tqq9.lc123.cloud.app.api.utils;

import com.fasterxml.jackson.databind.ObjectMapper;
import kd.bos.logging.Log;
import kd.bos.logging.LogFactory;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;


import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;

public class GyOpenApiUtil {

    private static final ObjectMapper objectMapper = new ObjectMapper();
    private static String apiUrl = "http://v2.api.guanyierp.com/rest/erp_open";
    private static String appKey = "142232";
    private static String appSecret = "0140a81d7c814924a7148ff54c2dd859";
    private static String sessionKey = "1ac2c2eb69bc4626b13f2fa8255e728f";

    private final static Log logger = LogFactory.getLog(GyOpenApiUtil.class);

    /**
     * 生成管易云API签名
     */
    public static String generateSign(Map<String, Object> params, String appSecret) {
        try {
            // 参数按字母顺序排序
            Map<String, Object> sortedParams = new TreeMap<>(params);
            // 转换为紧凑JSON
            String paramJson = objectMapper.writeValueAsString(sortedParams);
            // 生成签名：appSecret + JSON + appSecret，然后MD5加密并转为大写
            String signString = appSecret + paramJson + appSecret;
            return DigestUtils.md5Hex(signString).toUpperCase();
        } catch (Exception e) {
            throw new RuntimeException("签名生成失败", e);
        }
    }

    /**
     * 构建请求参数
     */
    public static Map<String, Object> buildRequestParams(Map<String, Object> request) {
        request.put("session", sessionKey);
        Map<String, Object> params = new HashMap<>();

        params.putAll(request);

        // 生成签名
        String sign = generateSign(params, appSecret);
        params.put("sign", sign);

        return params;
    }

    /**
     * 调用管易云API
     */
    public static String callGuanyiApi(Map<String, Object> params) {
        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
            HttpPost httpPost = new HttpPost(apiUrl);

            // 设置请求头
            httpPost.setHeader("Content-Type", "application/json; charset=utf-8");

            // 设置请求体
            String jsonParams = objectMapper.writeValueAsString(params);
            logger.debug("管易云API请求参数: {}", jsonParams);

            httpPost.setEntity(new StringEntity(jsonParams, "UTF-8"));

            // 执行请求
            try (CloseableHttpResponse response = httpClient.execute(httpPost)) {
                HttpEntity entity = response.getEntity();
                String responseString = EntityUtils.toString(entity, "UTF-8");
                logger.debug("管易云API响应: {}", responseString);

                if (response.getStatusLine().getStatusCode() != 200) {
                    throw new RuntimeException("API调用失败，状态码: " + response.getStatusLine().getStatusCode());
                }

                return responseString;
            }
        } catch (Exception e) {
            logger.error("调用管易云API异常", e);
            throw new RuntimeException("API调用异常", e);
        }
    }

    public static void main(String[] args) {
        Map<String, Object> params = new HashMap<>();
        params.put("method", "gy.erp.trade.get");

        Map<String, Object> stringObjectMap = GyOpenApiUtil.buildRequestParams(params);
        String callGuanyiApi = GyOpenApiUtil.callGuanyiApi(stringObjectMap);
        System.out.println(callGuanyiApi);
    }

}