package com.cybertogether.wx.notice.infrastructure;

import com.alibaba.fastjson.JSONObject;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHeaders;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.*;
import org.apache.http.config.*;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.ssl.SSLContexts;
import org.apache.http.util.EntityUtils;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.CodingErrorAction;
import java.security.KeyManagementException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.*;

/**
 * @description：
 * @author： TanJingyu
 * @create：2023-06-14 14:11:21
 **/
public class HttpClientUtils {

    static Log log = LogFactory.getLog(HttpClientUtils.class);

    private static CloseableHttpClient client;
    private static RequestConfig requestConfigDefault;
    private static PoolingHttpClientConnectionManager connManager = null;
    // 默认请求获取数据的超时时间
    private static Integer readTimeoutDefault = 15000;
    // 默认连接超时时间
    private static Integer connectTimeoutDefault = 5000;
    // 默认从connectManager获取Connection超时时间
    private static Integer getConnectionTimeoutDefault = 1000;
    // 默认的字符集
    private static String charsetDefault = "UTF-8";

    public static final String contentTypeJson = "application/json";
    public static final String contentTypeXml = "application/xml";

    private enum MethodType {
        GET, POST
    }

    static {
        try {
            SSLContext sslContext = SSLContexts.createDefault();
            sslContext.init(null, new TrustManager[]{new X509TrustManager() {

                public void checkClientTrusted(X509Certificate[] arg0, String arg1)
                        throws CertificateException {
                }

                public void checkServerTrusted(X509Certificate[] arg0, String arg1)
                        throws CertificateException {
                }

                public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
            }}, null);
            Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                    .register("http", PlainConnectionSocketFactory.INSTANCE)
                    .register("https", new SSLConnectionSocketFactory(sslContext)).build();
            connManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);
            SocketConfig socketConfig = SocketConfig.custom().setTcpNoDelay(true).build();
            connManager.setDefaultSocketConfig(socketConfig);
            MessageConstraints messageConstraints = MessageConstraints.custom().build();
            ConnectionConfig connectionConfig = ConnectionConfig.custom()
                    .setMalformedInputAction(CodingErrorAction.IGNORE)
                    .setUnmappableInputAction(CodingErrorAction.IGNORE).setCharset(Consts.UTF_8)
                    .setMessageConstraints(messageConstraints).build();
            connManager.setDefaultConnectionConfig(connectionConfig);
            connManager.setMaxTotal(1000);
            connManager.setDefaultMaxPerRoute(500);
            connManager.setValidateAfterInactivity(3000);
        } catch (KeyManagementException e) {
            log.error(e);
        }

        requestConfigDefault = RequestConfig.custom().setConnectionRequestTimeout(getConnectionTimeoutDefault)
                .setConnectTimeout(connectTimeoutDefault).setSocketTimeout(readTimeoutDefault).build();
        client = HttpClients.custom().useSystemProperties().setConnectionManager(connManager).setDefaultRequestConfig(requestConfigDefault)
                .build();

    }

    /**
     * get请求
     *
     * @param url 请求的url
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent get(String url) {
        return get(url, null, connectTimeoutDefault, readTimeoutDefault, null);
    }

    /**
     * @param url     请求的url
     * @param headers 请求需要携带的header信息
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent get(String url, Map<String, String> headers) {
        return get(url, null, connectTimeoutDefault, readTimeoutDefault, headers);
    }

    /**
     * get请求
     *
     * @param url         请求的url
     * @param contentType contentType，例如：text/plain
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent get(String url, String contentType) {
        return get(url, contentType, connectTimeoutDefault, readTimeoutDefault, null);
    }

    /**
     * get请求
     *
     * @param url            请求的url
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent get(String url, int connectTimeout, int readTimeout) {
        return get(url, null, connectTimeout, readTimeout, null);
    }

    /**
     * get请求
     *
     * @param url            请求的url
     * @param contentType    contentType，例如：text/plain
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @param headers        请求需要携带的header信息
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent get(String url, String contentType, int connectTimeout, int readTimeout, Map<String, String> headers) {
        return getOrPostUrl(MethodType.GET, url, contentType, connectTimeout, readTimeout, headers);
    }

    /**
     * post请求，参数在url中
     *
     * @param url 请求的url
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postUrl(String url) {
        return postUrl(url, null, connectTimeoutDefault, readTimeoutDefault);
    }

    /**
     * post请求，参数在url中
     *
     * @param url         请求的url
     * @param contentType contentType，例如：text/plain
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postUrl(String url, String contentType) {
        return postUrl(url, contentType, connectTimeoutDefault, readTimeoutDefault);
    }

    /**
     * post请求，参数在url中
     *
     * @param url            请求的url
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postUrl(String url, int connectTimeout, int readTimeout) {
        return postUrl(url, null, connectTimeout, readTimeout);
    }

    /**
     * post请求，参数在url中
     *
     * @param url            请求的url
     * @param contentType    contentType，例如：text/plain
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postUrl(String url, String contentType, int connectTimeout, int readTimeout) {
        return getOrPostUrl(MethodType.POST, url, contentType, connectTimeout, readTimeout);
    }

    /**
     * get或者post请求，参数在url中
     *
     * @param methodType     GET/POST
     * @param url            请求的url
     * @param contentType    contentType，例如：text/plain
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    private static HttpResponseContent getOrPostUrl(MethodType methodType, String url, String contentType,
                                                    int connectTimeout, int readTimeout) {
        return getOrPostUrl(methodType, url, contentType, connectTimeout, readTimeout, null);
    }

    private static HttpResponseContent getOrPostUrl(MethodType methodType, String url, String contentType,
                                                    int connectTimeout, int readTimeout, Map<String, String> extHeaders) {
        HttpRequestBase request = null;
        HttpResponseContent hrc = null;
        if (methodType == MethodType.GET) {
            request = new HttpGet(url);
        } else {
            request = new HttpPost(url);
        }
        // 设置contentType
        if (contentType != null) {
            request.addHeader(HttpHeaders.CONTENT_TYPE, contentType);
        }
        //add by nieqi since 2022-3-23
        if (Objects.nonNull(extHeaders)) {
            for (String s : extHeaders.keySet()) {
                if (Objects.nonNull(s)) {
                    String headerValue = extHeaders.get(s);
                    if (Objects.nonNull(headerValue)) {
                        request.addHeader(s, headerValue);
                    }
                }
            }
        }
        hrc = executeHttpRequest(request, connectTimeout, readTimeout);
        return hrc;
    }

    /**
     * post请求，请求数据在data中
     *
     * @param url  请求的url
     * @param data 请求数据
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postData(String url, String data) {
        return postData(url, data, null, connectTimeoutDefault, readTimeoutDefault);

    }

    /**
     * post请求，请求数据在data中
     *
     * @param url         请求的url
     * @param data        请求数据
     * @param contentType contentType，例如：text/plain
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postData(String url, String data, String contentType) {
        return postData(url, data, contentType, connectTimeoutDefault, readTimeoutDefault);
    }

    /**
     * post请求，请求数据在data中
     *
     * @param url            请求的url
     * @param data           请求数据
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postData(String url, String data, int connectTimeout, int readTimeout) {
        return postData(url, data, null, connectTimeout, readTimeout);
    }

    /**
     * post请求，请求数据在data中
     *
     * @param url            请求的url
     * @param data           请求数据
     * @param contentType    contentType，例如：text/plain
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postData(String url, String data, String contentType, int connectTimeout,
                                               int readTimeout) {
        Map<String, String> headerMap = new HashMap<String, String>();
        headerMap.put(HttpHeaders.CONTENT_TYPE, contentType);
        return postDataAddHeader(url, data, headerMap, connectTimeout, readTimeout);

    }

    /**
     * post请求，请求数据在data中
     *
     * @param url            请求的url
     * @param data           请求数据
     * @param headerMap      http请求头，key-value放在map中
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postDataAddHeader(String url, String data, Map<String, String> headerMap,
                                                        int connectTimeout, int readTimeout) {
        HttpRequestBase request = null;
        HttpResponseContent hrc = null;
        HttpPost httpPost = new HttpPost(url);
        httpPost.setEntity(new StringEntity(data, charsetDefault));
        request = httpPost;
        // 设置header
        if (headerMap != null) {
            for (Map.Entry<String, String> entry : headerMap.entrySet()) {
                request.addHeader(entry.getKey(), entry.getValue());
            }
        }
        hrc = executeHttpRequest(request, connectTimeout, readTimeout);
        return hrc;

    }

    /**
     * post请求,form表单,不能包含二进制数据
     *
     * @param url       请求的url
     * @param paramsMap form表单参数map
     * @param headerMap form表单header
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postForm(String url, Map<String, String> paramsMap, Map<String, String> headerMap) {
        return postForm(url, paramsMap, connectTimeoutDefault, readTimeoutDefault, headerMap);
    }

    /**
     * post请求,form表单,不能包含二进制数据
     *
     * @param url            请求的url
     * @param paramsMap      form表单参数map
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @param headerMap      form表单header
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postForm(String url, Map<String, String> paramsMap, int connectTimeout,
                                               int readTimeout, Map<String, String> headerMap) {
        HttpRequestBase request = null;
        HttpResponseContent hrc = null;
        HttpPost httpPost = new HttpPost(url);
        List<NameValuePair> nvps = new ArrayList<NameValuePair>();
        if (Objects.nonNull(paramsMap)) {
            Iterator<String> iterator = paramsMap.keySet().iterator();
            while (iterator.hasNext()) {
                String key = iterator.next();
                Object value = paramsMap.get(key);
                nvps.add(new BasicNameValuePair(key, String.valueOf(value)));
            }
        }
        // 设置header
        if (headerMap != null) {
            for (Map.Entry<String, String> entry : headerMap.entrySet()) {
                httpPost.addHeader(entry.getKey(), entry.getValue());
            }
        }
        try {
            httpPost.setEntity(new UrlEncodedFormEntity(nvps, charsetDefault));
        } catch (UnsupportedEncodingException e) {
            log.error(e);
        }
        request = httpPost;
        hrc = executeHttpRequest(request, connectTimeout, readTimeout);
        return hrc;
    }

    /**
     * post请求，multipart,支持File，byte[]这两种二进制数据
     *
     * @param url       请求的url
     * @param paramsMap 请求参数map
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postMultipart(String url, Map<String, Object> paramsMap) {
        return postMultipart(url, paramsMap, connectTimeoutDefault, readTimeoutDefault, null);
    }

    public static HttpResponseContent postMultipart(String url, Map<String, Object> paramsMap, Map<String, String> headerMap) {
        return postMultipart(url, paramsMap, connectTimeoutDefault, readTimeoutDefault, headerMap);
    }

    /**
     * post请求，multipart,支持File，byte[]这两种二进制数据
     *
     * @param url            请求的url
     * @param paramsMap      请求参数map
     * @param connectTimeout 连接超时设置，毫秒
     * @param readTimeout    读取超时设置，毫秒
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    public static HttpResponseContent postMultipart(String url, Map<String, Object> paramsMap, int connectTimeout,
                                                    int readTimeout, Map<String, String> headerMap) {
        HttpRequestBase request = null;
        HttpResponseContent hrc = null;
        HttpPost httpPost = new HttpPost(url);
        MultipartEntityBuilder multipartEntityBuilder = MultipartEntityBuilder.create();
        multipartEntityBuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
        Iterator<String> iterator = paramsMap.keySet().iterator();
        while (iterator.hasNext()) {
            String key = iterator.next();
            Object value = paramsMap.get(key);
            if (value instanceof File) {
                multipartEntityBuilder.addBinaryBody(key, (File) value);
            } else if (value instanceof byte[]) {
                multipartEntityBuilder.addBinaryBody(key, (byte[]) value);
            } else {
                multipartEntityBuilder.addTextBody(key, String.valueOf(value),
                        ContentType.create("text/plain", charsetDefault));
            }
        }
        httpPost.setEntity(multipartEntityBuilder.build());
        // 设置header
        if (headerMap != null) {
            for (Map.Entry<String, String> entry : headerMap.entrySet()) {
                httpPost.addHeader(entry.getKey(), entry.getValue());
            }
        }
        request = httpPost;
        hrc = executeHttpRequest(request, connectTimeout, readTimeout);
        return hrc;
    }

    public static HttpResponseContent postRequestBody(String url, Object s, Map<String, String> headerMap) {
        HttpRequestBase request = null;
        HttpResponseContent hrc = null;
        HttpPost httpPost = new HttpPost(url);

        StringEntity stringEntity = new StringEntity((s instanceof String) ? (String) s : JSONObject.toJSONString(s), Consts.UTF_8);
        stringEntity.setContentEncoding(Consts.UTF_8.name());
        stringEntity.setContentType("application/json");
        httpPost.setEntity(stringEntity);
        // 设置header
        if (headerMap != null) {
            for (Map.Entry<String, String> entry : headerMap.entrySet()) {
                httpPost.addHeader(entry.getKey(), entry.getValue());
            }
        }
        request = httpPost;
        hrc = executeHttpRequest(request, connectTimeoutDefault, readTimeoutDefault);
        return hrc;
    }

    public static HttpResponseContent deleteRequestBody(String url, Object s, HashMap<String, String> headerMap) {
        HttpRequestBase request = null;
        HttpResponseContent hrc = null;
        HttpDeleteExpand httpDelete = new HttpDeleteExpand(url);

        StringEntity stringEntity = new StringEntity(JSONObject.toJSONString(s), Consts.UTF_8);
        stringEntity.setContentEncoding(Consts.UTF_8.name());
        stringEntity.setContentType("application/json");
        httpDelete.setEntity(stringEntity);
        // 设置header
        if (headerMap != null) {
            for (Map.Entry<String, String> entry : headerMap.entrySet()) {
                httpDelete.addHeader(entry.getKey(), entry.getValue());
            }
        }
        request = httpDelete;
        hrc = executeHttpRequest(request, connectTimeoutDefault, readTimeoutDefault);
        return hrc;
    }

    public static HttpResponseContent putRequestBody(String url, Object s, HashMap<String, String> headerMap) {
        HttpRequestBase request = null;
        HttpResponseContent hrc = null;
        HttpPut httpPut = new HttpPut(url);

        StringEntity stringEntity = new StringEntity(JSONObject.toJSONString(s), Consts.UTF_8);
        stringEntity.setContentEncoding(Consts.UTF_8.name());
        stringEntity.setContentType("application/json");
        httpPut.setEntity(stringEntity);
        // 设置header
        if (headerMap != null) {
            for (Map.Entry<String, String> entry : headerMap.entrySet()) {
                httpPut.addHeader(entry.getKey(), entry.getValue());
            }
        }
        request = httpPut;
        hrc = executeHttpRequest(request, connectTimeoutDefault, readTimeoutDefault);
        return hrc;
    }

    /**
     * 执行Http请求
     *
     * @param request
     * @param connectTimeout
     * @param readTimeout
     * @return HttpResponseContent对象，如果http请求出现异常，返回null
     */
    private static HttpResponseContent executeHttpRequest(HttpRequestBase request, int connectTimeout,
                                                          int readTimeout) {
        CloseableHttpResponse response = null;
        HttpResponseContent hrc = null;
        try {
            // 设置请求配置
            RequestConfig.Builder configBuilder = RequestConfig.custom();
            // 设置连接超时
            configBuilder.setConnectTimeout(connectTimeout);
            // 设置读取超时
            configBuilder.setSocketTimeout(readTimeout);
            // 设置从连接池获取连接实例的超时
            configBuilder.setConnectionRequestTimeout(getConnectionTimeoutDefault);
            RequestConfig requestConfig = configBuilder.build();
            request.setConfig(requestConfig);
            log.debug("开始执行Http请求, uri:" + request.getURI());
            response = client.execute(request);
            hrc = getHttpResponseContent(response);
            return hrc;
        } catch (Exception e) {
            log.error("执行Http请求异常, uri:" + request.getURI(), e);
        } finally {
            close(request, response);
        }
        return hrc;

    }

    /**
     * 封装HTTP响应报文
     *
     * @param response
     * @return
     */
    private static HttpResponseContent getHttpResponseContent(CloseableHttpResponse response) {
        // 获取响应实体
        HttpEntity entity = response.getEntity();
        if (entity == null) {
            return null;
        }
        HttpResponseContent hrc = new HttpResponseContent();
        hrc.setHeaders(response.getAllHeaders());
        hrc.setStatusCode(response.getStatusLine().getStatusCode());
        ContentType contentType = ContentType.getOrDefault(entity);
        hrc.setMimeType(contentType.getMimeType());
        if (contentType.getCharset() != null) {
            hrc.setCharsetName(contentType.getCharset().name());
        }
        try {
            hrc.setContentBytes(EntityUtils.toByteArray(entity));
        } catch (IOException e) {
            log.error("封装HTTP响应报文异常", e);
        }
        return hrc;

    }

    /**
     * 关闭资源
     *
     * @param request
     * @param response
     */
    private static void close(HttpRequestBase request, CloseableHttpResponse response) {
        try {
            if (request != null)
                request.releaseConnection();
            if (response != null)
                response.close();
        } catch (Exception e) {
            log.error("关闭资源异常", e);
        }
    }

    /**
     * url编码
     *
     * @param url
     * @param charset
     * @return
     */
    public static String encodeURL(String url, String charset) {
        if (url == null || charset == null) {
            return null;
        }
        int p = url.indexOf("?");
        if (p < 0) {
            return url;
        }
        StringBuilder sb = new StringBuilder();
        String preStr = url.substring(0, p + 1);
        sb.append(preStr);
        String queryStr = url.substring(p + 1, url.length());
        String[] array = queryStr.split("&");
        for (int i = 0; i < array.length; i++) {
            String str = array[i];
            int pp = str.indexOf("=");
            if (pp > -1) {
                sb.append(str.substring(0, pp + 1));
                try {
                    sb.append(URLEncoder.encode(str.substring(pp + 1, str.length()), charset));
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
                if (i < array.length - 1) {
                    sb.append("&");
                }
            }
        }
        return sb.toString();
    }

}