package io.hmit.service;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
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.NameValuePair;
import org.apache.http.ssl.SSLContextBuilder;
import org.apache.http.util.EntityUtils;
import org.springframework.stereotype.Service;

import java.util.*;

import java.nio.charset.Charset;
import java.text.SimpleDateFormat;
@Service
public class SmsService {

//    public static void main(String[] args) throws Exception {
//        SmsService s = new SmsService();
//        s.sendSms();
//    }

    //无需修改,用于格式化鉴权头域,给"X-WSSE"参数赋值
    private static final String WSSE_HEADER_FORMAT = "UsernameToken Username=\"%s\",PasswordDigest=\"%s\",Nonce=\"%s\",Created=\"%s\"";
    //无需修改,用于格式化鉴权头域,给"Authorization"参数赋值
    private static final String AUTH_HEADER_VALUE = "WSSE realm=\"SDP\",profile=\"UsernameToken\",type=\"Appkey\"";

    public void sendSms(Map<String,Object> map) throws Exception {
        String url = "https://rtcsms.cn-north-1.myhuaweicloud.com:10743/sms/batchSendSms/v1"; //APP接入地址+接口访问URI
        String appKey = "l5mVbx22mcBH6ZNJ1362T6eI1Xp5"; //APP_Key
        String appSecret = "6CTVWB8EYzOWvvyD9eiWzYo2dWiE"; //APP_Secret
        String sender = "8820052030944"; //国内短信签名通道号或国际/港澳台短信通道号
        String templateId = map.get("tempId").toString(); //模板ID
        String signature = "浙江汇民网络技术"; //签名名称
        String receiver = map.get("num").toString();
        String statusCallBack = "";
        System.out.println(map.get("tempParams").toString());
        String templateParas =  map.get("tempParams").toString();

        //请求Body,不携带签名名称时,signature请填null
        String body = buildRequestBody(sender, receiver, templateId, templateParas, statusCallBack, signature);
        if (null == body || body.isEmpty()) {
            System.out.println("body is null.");
            return;
        }

        //请求Headers中的X-WSSE参数值
        String wsseHeader = buildWsseHeader(appKey, appSecret);
        if (null == wsseHeader || wsseHeader.isEmpty()) {
            System.out.println("wsse header is null.");
            return;
        }
        //如果JDK版本低于1.8,可使用如下代码
        //为防止因HTTPS证书认证失败造成API调用失败,需要先忽略证书信任问题
        //CloseableHttpClient client = HttpClients.custom()
        //        .setSSLContext(new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
        //            @Override
        //            public boolean isTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
        //                return true;
        //            }
        //        }).build()).setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE).build();

        //如果JDK版本是1.8,可使用如下代码
        //为防止因HTTPS证书认证失败造成API调用失败,需要先忽略证书信任问题
        CloseableHttpClient client = HttpClients.custom()
                .setSSLContext(new SSLContextBuilder().loadTrustMaterial(null,
                        (x509CertChain, authType) -> true).build())
                .setSSLHostnameVerifier(NoopHostnameVerifier.INSTANCE)
                .build();

        HttpResponse response = client.execute(RequestBuilder.create("POST")//请求方法POST
                .setUri(url)
                .addHeader(HttpHeaders.CONTENT_TYPE, "application/x-www-form-urlencoded")
                .addHeader(HttpHeaders.AUTHORIZATION, AUTH_HEADER_VALUE)
                .addHeader("X-WSSE", wsseHeader)
                .setEntity(new StringEntity(body)).build());

        System.out.println(response.toString()); //打印响应头域信息
        System.out.println(EntityUtils.toString(response.getEntity())); //打印响应消息实体
    }

    public String buildRequestBody(String sender, String receiver, String templateId, String templateParas,
                                   String statusCallbackUrl, String signature){
        if (null == sender || null == receiver || null == templateId || sender.isEmpty() || receiver.isEmpty()
                || templateId.isEmpty()) {
            System.out.println("buildRequestBody(): sender, receiver or templateId is null.");
            return null;
        }
        List<NameValuePair> keyValues = new ArrayList<NameValuePair>();

        keyValues.add(new BasicNameValuePair("from", sender));
        keyValues.add(new BasicNameValuePair("to", receiver));
        keyValues.add(new BasicNameValuePair("templateId", templateId));
        if (null != templateParas && !templateParas.isEmpty()) {
            keyValues.add(new BasicNameValuePair("templateParas", templateParas));
        }
        if (null != statusCallbackUrl && !statusCallbackUrl.isEmpty()) {
            keyValues.add(new BasicNameValuePair("statusCallback", statusCallbackUrl));
        }
        if (null != signature && !signature.isEmpty()) {
            keyValues.add(new BasicNameValuePair("signature", signature));
        }

        return URLEncodedUtils.format(keyValues, Charset.forName("UTF-8"));
    }

    public String buildWsseHeader(String appKey, String appSecret) {
        if (null == appKey || null == appSecret || appKey.isEmpty() || appSecret.isEmpty()) {
            System.out.println("buildWsseHeader(): appKey or appSecret is null.");
            return null;
        }
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
        String time = sdf.format(new Date()); //Created
        String nonce = UUID.randomUUID().toString().replace("-", ""); //Nonce

        byte[] passwordDigest = DigestUtils.sha256(nonce + time + appSecret);
        String hexDigest = Hex.encodeHexString(passwordDigest);

        //如果JDK版本是1.8,请加载原生Base64类,并使用如下代码
        String passwordDigestBase64Str = Base64.getEncoder().encodeToString(hexDigest.getBytes()); //PasswordDigest
        //如果JDK版本低于1.8,请加载三方库提供Base64类,并使用如下代码
        //String passwordDigestBase64Str = Base64.encodeBase64String(hexDigest.getBytes(Charset.forName("utf-8"))); //PasswordDigest
        //若passwordDigestBase64Str中包含换行符,请执行如下代码进行修正
        //passwordDigestBase64Str = passwordDigestBase64Str.replaceAll("[\\s*\t\n\r]", "");

        return String.format(WSSE_HEADER_FORMAT, appKey, passwordDigestBase64Str, nonce, time);
    }

}