package com.weaver.seconddev.chapanda.esign.util;

import com.alibaba.fastjson.JSONObject;
import com.weaver.seconddev.chapanda.esign.constant.Constants;
import com.weaver.seconddev.chapanda.esign.entity.OkHttpDto;
import okhttp3.*;
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

@Component
public class Esb2EsignPreviewUrlUtil {
    private final static Logger log = LoggerFactory.getLogger(Esb2EsignPreviewUrlUtil.class);

    public OkHttpDto queryPreviewUrl(String fileKey){
        String bodyData = "";
        String xTimevaleSignature = encryptionHmacSHA256(bodyData);
        log.error("xTimevaleSignature:"+xTimevaleSignature);
        OkHttpDto okHttpDto = doHttpGet(xTimevaleSignature,fileKey);

//        if(StringUtils.isNotBlank(msg)){
//            JSONObject bodyJson = JSONObject.parseObject(msg);
//            if(bodyJson.containsKey("errCode")){
//                String errCode = bodyJson.getString("errCode");
//                if("0".equals(errCode)){
//                    JSONObject dataJson = bodyJson.getJSONObject("data");
//                    if(dataJson.containsKey("url")){
//                        url = dataJson.getString("url");
//                    }
//                }
//            }
//        }
//        log.error("msg:"+msg);
        return okHttpDto;
    }

    /***
     *
     * @param xTimevaleSignature
     * @return
     */
    public OkHttpDto doHttpGet(String xTimevaleSignature,String fileKey){
        OkHttpDto okHttpDto = new OkHttpDto();
        OkHttpClient client = new OkHttpClient().newBuilder()
                .build();
        try {
            Request request = new Request.Builder()
                    .url(Constants.eSignHost+Constants.previewUrl+"?fileKey="+fileKey)
                    .method("GET", null)
                    .addHeader("x-timevale-project-id", Constants.xTimevaleProjectId)
                    .addHeader("x-timevale-signature", xTimevaleSignature)
                    .addHeader("Content-Type", "application/json")
                    .build();
            Response response = client.newCall(request).execute();
            int code = response.code();
            String msg = response.body().string();
            log.error("code:{}",code);
            log.error("msg:{}",msg);
            okHttpDto.setResponseCode(code);
            okHttpDto.setResponseBody(msg);
            convertData(msg,okHttpDto);

        } catch (IOException e) {
            log.error("e:"+e.getMessage());
            throw new RuntimeException(e);
        }
        return okHttpDto;
    }

    /***
     *
     * @param bodyData
     * @return
     */
    public String encryptionHmacSHA256(String bodyData){
        String encryptionData = "";
        try {
            // 初始化Mac对象
            Mac sha256Hmac = Mac.getInstance("HmacSHA256");
            SecretKeySpec secretKeySpec = new SecretKeySpec(Constants.secretKey.getBytes(StandardCharsets.UTF_8), "HmacSHA256");
            sha256Hmac.init(secretKeySpec);
            byte[] result = sha256Hmac.doFinal(bodyData.getBytes(StandardCharsets.UTF_8));
            encryptionData = Hex.encodeHexString(result);
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }catch (InvalidKeyException e) {
            throw new RuntimeException(e);
        }
        return encryptionData;
    }


    public void convertData(String reposponseBody,OkHttpDto okHttpDto){
        JSONObject bodyJson = JSONObject.parseObject(reposponseBody);
        int errCode = -100;
        if(bodyJson.containsKey("errCode")){
            errCode = bodyJson.getInteger("errCode");
            log.error("errCode:{}",errCode);
        }
        okHttpDto.setDataCode(errCode);
        String msg = "";
        if(bodyJson.containsKey("msg")){
            msg = bodyJson.getString("msg");
            log.error("msg:{}",msg);
        }
        okHttpDto.setDataMsg(msg);
        if(errCode ==0){
            JSONObject responseDataJson = new JSONObject();
            if(bodyJson.containsKey("data")){
                String data = bodyJson.getString("data");
                log.error("data:{}",data);
                if(StringUtils.isNotBlank(data)){
                    JSONObject dataJson = bodyJson.getJSONObject("data");
                    if(dataJson.containsKey("url")){
                        String preViewUrl = dataJson.getString("url");
                        log.error("preViewUrl:{}",preViewUrl);
                        responseDataJson.put("preViewUrl",preViewUrl);
                    }
                }
            }
            okHttpDto.setDataJson(responseDataJson);
        }
    }
}
