package com.nova.sankuai.infra.utils.huifubao.common;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.http.HttpEntity;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
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.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;



public class HttpUtil {

    private RequestConfig requestConfig = RequestConfig.custom()
            .setSocketTimeout(30000)
            .setConnectTimeout(30000)
            .setConnectionRequestTimeout(30000)
            .build();

    /**
     * 发送 post请求
     *
     * @param httpUrl 地址
     * @param params  参数(Json格式)
     */
    public String sendJsonHttpPost(String httpUrl, String params) {
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        try {
            //设置参数
            StringEntity stringEntity = new StringEntity(params, "UTF-8");
            stringEntity.setContentType("text/json");
            httpPost.setEntity(stringEntity);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return sendHttpPost(httpPost);
    }

    /**
     * 发送Post请求
     *
     * @param httpPost
     * @return
     */
    public String sendHttpPost(HttpPost httpPost) {
        CloseableHttpClient httpClient = null;
        CloseableHttpResponse response = null;
        HttpEntity entity = null;
        String responseContent = null;
        try {
            // 创建默认的httpClient实例.
            httpClient = HttpClients.createDefault();
            httpPost.setConfig(requestConfig);
            // 执行请求
            response = httpClient.execute(httpPost);
            entity = response.getEntity();
            responseContent = EntityUtils.toString(entity, "UTF-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                // 关闭连接,释放资源
                if (response != null) {
                    response.close();
                }
                if (httpClient != null) {
                    httpClient.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return responseContent;
    }


    /**
     * 发送Post  x-www-form-urlencoded请求
     *
     * @param httpPost
     * @return
     */
    public static String sendPost(String url, Map<String, String> params){
        CloseableHttpClient httpClient = null;
        HttpPost httpPost = null;
        CloseableHttpResponse response = null;
        String result = "";
        try {
            httpClient = HttpClientBuilder.create().build();
            httpPost = new HttpPost(url);
            // 设置参数
            if (null != params && params.size() > 0){
                List<BasicNameValuePair> pairList = new ArrayList<>();
                params.forEach((x,y) -> pairList.add(new BasicNameValuePair(x,y)));
                UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(pairList,"utf-8");
                httpPost.setEntity(urlEncodedFormEntity);
            }
            response = httpClient.execute(httpPost);
            result = EntityUtils.toString(response.getEntity());
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }


    public static JsonNode parseJsonResponse(String jsonResponse) throws Exception {
        ObjectMapper objectMapper = new ObjectMapper();
        return objectMapper.readTree(jsonResponse);
    }
}