package com.emoon.tongue.utils;

import org.apache.http.HttpEntity;
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.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
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.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.ssl.SSLContextBuilder;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class HttpUtils {

    /**
     * 发送POST请求，参数为json格式
     * @param httpUrl
     * @param jsonParam
     * @return
     */
    public static String sendHttpPostByJson(String httpUrl, String jsonParam) {
        return sendHttpPostByJson(httpUrl, jsonParam, null, false);
    }

    /**
     * 发送POST请求（JSON），支持自定义请求头（例如 Authorization）
     */
    public static String sendHttpPostByJson(String httpUrl, String jsonParam, Map<String, String> headers) {
        return sendHttpPostByJson(httpUrl, jsonParam, headers, false);
    }

    /**
     * 发送POST请求（JSON），支持自定义请求头，并可选跳过 HTTPS 证书校验（仅建议内网自签名场景）
     *
     * @param insecureSsl true 时：信任所有证书 + 跳过 hostname 校验
     */
    public static String sendHttpPostByJson(String httpUrl, String jsonParam, Map<String, String> headers, boolean insecureSsl) {
        CloseableHttpClient httpClient = null;
        CloseableHttpResponse response = null;
        String responseContent = null;
        HttpPost httpPost = new HttpPost(httpUrl);
        httpPost.setHeader("Content-Type", "application/json; charset=UTF-8");
        if (headers != null) {
            for (Map.Entry<String, String> e : headers.entrySet()) {
                if (e.getKey() != null && e.getValue() != null) {
                    httpPost.setHeader(e.getKey(), e.getValue());
                }
            }
        }
        try {
            httpPost.setEntity(new StringEntity(jsonParam, StandardCharsets.UTF_8));
            httpClient = insecureSsl ? createInsecureHttpClient() : HttpClients.createDefault();
            response = httpClient.execute(httpPost);
            HttpEntity entity = response.getEntity();
            responseContent = EntityUtils.toString(entity, StandardCharsets.UTF_8);
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (response != null) response.close();
                if (httpClient != null) httpClient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return responseContent;
    }

    /**
     * 构建“跳过证书校验”的 HttpClient（仅建议内网/自签名证书环境使用）
     */
    private static CloseableHttpClient createInsecureHttpClient() {
        try {
            var sslContext = SSLContextBuilder.create()
                .loadTrustMaterial(null, (chain, authType) -> true)
                .build();
            var sslsf = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
            return HttpClients.custom()
                .setSSLSocketFactory(sslsf)
                .build();
        } catch (Exception e) {
            // 回退到默认 client（让调用方自行处理异常/日志）
            return HttpClients.createDefault();
        }
    }

    /**
     * 发送 post请求
     * @param httpUrl 地址
     * @param maps 参数
     */
    public String sendHttpHeaderPost(String httpUrl, Map<String, String> maps, String token) {
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        httpPost.setHeader("AccessToken", token);
        // 创建参数队列
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
        for (String key : maps.keySet()) {
            nameValuePairs.add(new BasicNameValuePair(key, maps.get(key)));
        }
        try {
            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8"));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return sendHttpPost(httpPost);
    }

    /**
     * 发送 post请求
     * @param httpUrl 地址
     */
    public String sendHttpPost(String httpUrl) {
        System.out.println(httpUrl);
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        return sendHttpPost(httpPost);
    }

    /**
     * 发送 post请求
     * @param httpUrl 地址
     * @param params 参数(格式:key1=value1&key2=value2)
     */
    public String sendHttpPost(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("application/x-www-form-urlencoded");
            httpPost.setEntity(stringEntity);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return sendHttpPost(httpPost);
    }

    /**
     * 发送 post请求
     * @param httpUrl 地址
     * @param maps 参数
     */
    public String sendHttpPost(String httpUrl, Map<String, String> maps) {
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        // 创建参数队列
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
        for (String key : maps.keySet()) {
            nameValuePairs.add(new BasicNameValuePair(key, maps.get(key)));
        }
        try {
            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs, "UTF-8"));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return sendHttpPost(httpPost);
    }

    /**
     * 发送Post请求
     * @param httpPost
     * @return
     */
    private 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();
            // 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 get请求（带浏览器请求头）
     *
     * @param httpUrl 请求地址
     */
    public static String sendHttpGet(String httpUrl) {
        HttpGet httpGet = new HttpGet(httpUrl);

        // 👇 添加浏览器风格的请求头，避免被 Mock 服务屏蔽
        httpGet.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36");
        httpGet.setHeader("Accept", "application/json, text/plain, */*");
        httpGet.setHeader("Accept-Language", "zh-CN,zh;q=0.9");
        httpGet.setHeader("Connection", "keep-alive");

        return sendHttpGet(httpGet);
    }

    /**
     * 发送Get请求
     * @param
     * @return
     */
    private static String sendHttpGet(HttpGet httpGet) {
        // 创建请求配置，设置连接和请求超时时间
        RequestConfig requestConfig = RequestConfig.custom()
            .setConnectTimeout(5000)
            .setSocketTimeout(5000)
            .build();

        CloseableHttpClient httpClient = null;
        CloseableHttpResponse response = null;
        HttpEntity entity = null;
        String responseContent = null;
        try {
            // 创建默认的httpClient实例，并设置请求配置
            httpClient = HttpClients.custom()
                .setDefaultRequestConfig(requestConfig)
                .build();
            // 执行请求
            response = httpClient.execute(httpGet);
            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;
    }
}


