package org.dromara.system.uitil;

import cn.hutool.json.JSON;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.dromara.common.oss.entity.SynchronousRequest;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;

public class HttpUtils {
    public static String sendPostWithJson(String url, String jsonStr, HashMap<String,String> headers) {
        // 返回的结果
        String jsonResult = "";
        try {
            HttpClient client = new HttpClient();
            // 连接超时
            client.getHttpConnectionManager().getParams().setConnectionTimeout(3*1000);
            // 读取数据超时
            client.getHttpConnectionManager().getParams().setSoTimeout(3*60*1000);
            client.getParams().setContentCharset("UTF-8");
            PostMethod postMethod = new PostMethod(url);

            postMethod.setRequestHeader("content-type", headers.get("content-type"));

            // 非空
            if (null != jsonStr && !"".equals(jsonStr)) {
                StringRequestEntity requestEntity = new StringRequestEntity(jsonStr, headers.get("content-type"), "UTF-8");
                postMethod.setRequestEntity(requestEntity);
            }
            int status = client.executeMethod(postMethod);
            if (status == HttpStatus.SC_OK) {
                jsonResult = postMethod.getResponseBodyAsString();
            } else {
                throw new RuntimeException("接口连接失败！");
            }
        } catch (Exception e) {
            throw new RuntimeException("接口连接失败！");
        }
        return jsonResult;
    }

    private static final String BOUNDARY = "----WebKitFormBoundary7MA4YWxkTrZu0gW";
    private static final String LINE_FEED = "\r\n";
    private static final String CHARSET = "UTF-8";

    public static File convert(MultipartFile multipartFile) throws IOException {
        File file = new File(multipartFile.getOriginalFilename());
        multipartFile.transferTo(file);
        return file;
    }

    public static void sendPostRequest(String url, String stringParam, File fileParam) throws Exception {

        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // 设置POST请求
        con.setRequestMethod("POST");
        con.setDoOutput(true);
        con.setDoInput(true);
        con.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);

        // 构建请求体
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes("--" + BOUNDARY + LINE_FEED);
        wr.writeBytes("Content-Disposition: form-data; name=\"stringParam\"" + LINE_FEED);
        wr.writeBytes(LINE_FEED);
        wr.writeBytes(stringParam + LINE_FEED);

        wr.writeBytes("--" + BOUNDARY + LINE_FEED);
        wr.writeBytes("Content-Disposition: form-data; name=\"fileParam\"; filename=\"" + fileParam.getName() + "\"" + LINE_FEED);
        wr.writeBytes("Content-Type: " + HttpURLConnection.guessContentTypeFromName(fileParam.getName()) + LINE_FEED);
        wr.writeBytes("Content-Transfer-Encoding: binary" + LINE_FEED);
        wr.writeBytes(LINE_FEED);

        FileInputStream inputStream = new FileInputStream(fileParam);
        byte[] buffer = new byte[4096];
        int bytesRead = -1;
        while ((bytesRead = inputStream.read(buffer)) != -1) {
            wr.write(buffer, 0, bytesRead);
        }
        wr.writeBytes(LINE_FEED);
        wr.writeBytes("--" + BOUNDARY + "--" + LINE_FEED);

        wr.flush();
        wr.close();

        // 发送请求并获取响应
        int responseCode = con.getResponseCode();
        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        // 打印响应结果
        System.out.println("Response Code : " + responseCode);
        System.out.println("Response : " + response.toString());
    }

    /**
     * 上传同步
     * @param url
     * @param entity
     * @return
     * @throws IOException
     */
    public static String sendPostRequest(String url, SynchronousRequest entity) throws IOException {
        org.apache.http.client.HttpClient httpClient = HttpClientBuilder.create().build();
        HttpPost httpPost = new HttpPost(url);

        ContentType contentType = ContentType.create("multipart/form-data", StandardCharsets.UTF_8);
        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

        // 添加MultipartFile参数
        builder.addBinaryBody("file", entity.getFile().getBytes(), ContentType.MULTIPART_FORM_DATA, entity.getFile().getOriginalFilename());

        // 添加String参数
        builder.addTextBody("path", entity.getPath(), ContentType.TEXT_PLAIN);
        builder.addTextBody("ossId", entity.getOssId(), ContentType.TEXT_PLAIN);
        builder.addTextBody("createBy", entity.getCreateBy(), ContentType.TEXT_PLAIN);
        builder.addTextBody("password", entity.getPassword(), ContentType.TEXT_PLAIN);
        builder.addTextBody("fileName", entity.getFileName(),contentType);
//        builder.addTextBody("createTime", entity.getCreateTime(),);

        HttpEntity multipart = builder.build();
        httpPost.setEntity(multipart);

        HttpResponse response = httpClient.execute(httpPost);
        String responseBody = EntityUtils.toString(response.getEntity());
        System.out.println("Response: " + responseBody);
        return responseBody;
    }

    /**
     * 删除同步
     * @param url
//     * @param parameter
     * @throws Exception
     */
    public static String sendDeleteRequest(String url, String ossId) throws IOException {
        org.apache.http.client.HttpClient httpClient = HttpClientBuilder.create().build();
        HttpPost httpPost = new HttpPost(url);

        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

        // 添加MultipartFile参数
//        builder.addBinaryBody("file", entity.getFile().getBytes(), ContentType.MULTIPART_FORM_DATA, entity.getFile().getOriginalFilename());

        // 添加String参数
        builder.addTextBody("ossId", ossId, ContentType.TEXT_PLAIN);

        HttpEntity multipart = builder.build();
        httpPost.setEntity(multipart);

        HttpResponse response = httpClient.execute(httpPost);
        String responseBody = EntityUtils.toString(response.getEntity());
        System.out.println("Response: " + responseBody);
        return responseBody;
    }
}