package com.panzhihua.common.utlis;

import cn.hutool.core.util.StrUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.panzhihua.common.constants.SecurityConstants;
import com.panzhihua.common.controller.BaseController;
import com.panzhihua.common.redis.RedisUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.http.entity.ContentType;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartFile;

import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Slf4j
@Component
public class WxXCXTempSend extends BaseController {

    public static final String APP_ID = "wx118de8a734d269f0";
    private static final String APP_SECRET = "0264342daefde5cd70a6adada09ee5b1";
    private static String ACCESS_TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";
    private static String APP_IMAGE_URL = "https://www.psciio.com//idcard/8fa82cfba258498eab2fa818220fb592.jpg";
    private static String APP_IMAGE_NAME = "5.jpg";
    private static String WX_CALL_BACK = "https://api.weixin.qq.com/cgi-bin/getcallbackip?access_token=";
    //2小时
    private static final Long EXPIRE_TIME = 2L;
    @Resource
    private RedisTemplate redisTemplate;
    @Resource
    private StringRedisTemplate stringRedisTemplate;
    @Resource
    private RedisUtils redisUtils;

    private static WxXCXTempSend wxXCXTempSend;

    /**
     * url转变为 MultipartFile对象
     *
     * @param url
     * @param fileName
     * @return
     * @throws Exception
     */
    private static MultipartFile createFileItem(String url, String fileName) throws Exception {
        FileItem item = null;
        try {
            HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
            conn.setReadTimeout(30000);
            conn.setConnectTimeout(30000);
            // 设置应用程序要从网络连接读取数据
            conn.setDoInput(true);
            conn.setRequestMethod("GET");
            if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
                InputStream is = conn.getInputStream();

                FileItemFactory factory = new DiskFileItemFactory(16, null);
                String textFieldName = "uploadfile";
                item =
                        factory.createItem(textFieldName, ContentType.APPLICATION_OCTET_STREAM.toString(), false, fileName);
                OutputStream os = item.getOutputStream();

                int bytesRead = 0;
                byte[] buffer = new byte[8192];
                while ((bytesRead = is.read(buffer, 0, 8192)) != -1) {
                    os.write(buffer, 0, bytesRead);
                }
                os.close();
                is.close();
            }
        } catch (IOException e) {
            throw new RuntimeException("文件下载失败", e);
        }

        return new CommonsMultipartFile(item);
    }

    /**
     * 获取小程序token，（ps:0=token获取失败）
     *
     * @return
     */
    public String getAccessToken() throws Exception {
        String accessToken = "";
        String appId = this.getAppId();
        accessToken = wxXCXTempSend.stringRedisTemplate.boundValueOps("access_token:access_token:" + appId).get();
        return accessToken;
    }


    public String getAccessToken(String appId) throws Exception {
        String accessToken = "";
        accessToken = wxXCXTempSend.stringRedisTemplate.boundValueOps("access_token:access_token:" + appId).get();
        return accessToken;
    }

    private String validAccessToken(String accessToken, String appId, String appSecret) throws Exception {
        if (StrUtil.isEmpty(accessToken)) {
            //重新获取并设置到缓存 该方法暂时只用在花城
            accessToken = getAppAccessToken(appId, appSecret);
            wxXCXTempSend.stringRedisTemplate.opsForValue().set("access_token:access_token:" + appId, accessToken, EXPIRE_TIME, TimeUnit.HOURS);
        } else {
            String accessTokenUrl = WX_CALL_BACK + accessToken;
            String result = HttpClientUtil.httpGet(accessTokenUrl, null, null);
            Map<String, Object> resultMap = JSON.parseObject(result, Map.class);
            //如果Access_token过期也重新获取
            if (resultMap.containsKey("errcode")) {
                accessToken = getAppAccessToken(appId, appSecret);
                wxXCXTempSend.stringRedisTemplate.opsForValue().set("access_token:access_token:" + appId, accessToken, EXPIRE_TIME, TimeUnit.HOURS);
            }
        }
        return accessToken;
    }

    public String getAppAccessToken(String appId, String appSecret) throws Exception {
        String accessToken = "0";
        try {
            log.info("获取微信token参数：appid=" + appId + "，appSecret=" + appSecret);
            String accessTokenUrl = ACCESS_TOKEN_URL + "&appid=" + appId + "&secret=" + appSecret;
            String result = HttpClientUtil.httpGet(accessTokenUrl, null, null);
            Map<String, Object> resultMap = JSON.parseObject(result, Map.class);
            StringRedisTemplate redisTemplate = wxXCXTempSend.stringRedisTemplate;
            if (resultMap.containsKey("access_token")) {
                accessToken = resultMap.get("access_token").toString();
                redisTemplate.opsForValue().set("access_token:access_token:" + appId, accessToken);
            }
            HttpServletRequest request = ServletUtils.getRequest();
            String requestURI = request.getRequestURI();
            //加上时间戳
            String datetime = new SimpleDateFormat("yyyyMMdd").format(new Date());
            //这里是 Redis key的前缀，如: sys:tabieId:表名  如果不需要去掉表名也可以
            String key = MessageFormat.format("{0}:{1}:{2}",  "access_token_request_incr",datetime,requestURI);
            //查询 key 是否存在， 不存在返回 1 ，存在的话则自增加1
            redisTemplate.opsForValue().increment(key, 1);

        } catch (IOException ioe) {
            log.error("小程序http请求异常");
            ioe.printStackTrace();
        }
        return accessToken;
    }

    public String getWsAccessToken() throws Exception {
        String accessToken = "0";
        try {
//            log.info("获取微信token参数：appid=" + APP_ID + "，appSecret=" + APP_SECRET);
            String accessTokenUrl = ACCESS_TOKEN_URL + "&appid=wx98d62711dfbd8425" + "&secret=97a2a10b990c2774ed279724337b5337";
            String result = HttpClientUtil.httpGet(accessTokenUrl, null, null);
            Map<String, Object> resultMap = JSON.parseObject(result, Map.class);
            if (resultMap.containsKey("access_token")) {
                accessToken = resultMap.get("access_token").toString();
            }
        } catch (IOException ioe) {
            log.error("小程序http请求异常");
            ioe.printStackTrace();
        }
        return accessToken;
    }

    /**
     * 获取西区社区通微信token
     *
     * @return 西区社区通微信token
     * @throws Exception 异常
     */
    public String getXQAppAccessToken() throws Exception {
        String accessToken = "0";
        try {
            // 此处APP_ID APP_SECRET 在微信小程序后端可见
            // String accessTokenUrl = String.format(TEMP_URL, APP_ID, APP_SECRET);
            String accessTokenUrl = ACCESS_TOKEN_URL + "&appid=" + APP_ID + "&secret=" + APP_SECRET;
            String result = HttpClientUtil.httpGet(accessTokenUrl, null, null);
            Map<String, Object> resultMap = JSON.parseObject(result, Map.class);
            if (resultMap.containsKey("access_token")) {
                accessToken = resultMap.get("access_token").toString();
            }
        } catch (IOException ioe) {
            log.error("小程序http请求异常");
            ioe.printStackTrace();
        }
        return accessToken;
    }

    public String getMediaId(String accessToken) {
        String mediaId = "";
        Boolean aBoolean = redisTemplate.hasKey(SecurityConstants.APPLETS_ACCESS_MEDIA_ID);
        ValueOperations<String, String> valueOperations = redisTemplate.opsForValue();
        if (aBoolean) {
            Long expireTime = Long.parseLong(valueOperations.get(SecurityConstants.APPLETS_ACCESS_MEDIA_ID_TIME));
            if (expireTime <= System.currentTimeMillis()) {
                redisTemplate.delete(SecurityConstants.APPLETS_ACCESS_MEDIA_ID);// 如果过期则删除
                redisTemplate.delete(SecurityConstants.APPLETS_ACCESS_MEDIA_ID_TIME);// 如果过期则删除
                mediaId = getAppMediaId(accessToken);
                valueOperations.set(SecurityConstants.APPLETS_ACCESS_MEDIA_ID, mediaId);
                valueOperations.set(SecurityConstants.APPLETS_ACCESS_MEDIA_ID_TIME,
                        System.currentTimeMillis() + 259000000 + "");
            } else {
                mediaId = valueOperations.get(SecurityConstants.APPLETS_ACCESS_MEDIA_ID);
            }
        } else {
            mediaId = getAppMediaId(accessToken);
            valueOperations.set(SecurityConstants.APPLETS_ACCESS_MEDIA_ID, mediaId);
            valueOperations.set(SecurityConstants.APPLETS_ACCESS_MEDIA_ID_TIME,
                    System.currentTimeMillis() + 259000000 + "");
        }
        return mediaId;
    }

    private String getAppMediaId(String accessToken) {
        String appMediaId = "";
        try {
            MultipartFile file = createFileItem(APP_IMAGE_URL, APP_IMAGE_NAME);
            appMediaId = uploadFile(file, accessToken);
        } catch (Exception e) {
            log.error("上传临时图片素材失败,错误原因：" + e.getMessage());
        }
        return appMediaId;
    }

    /**
     * 微信小程序临时素材上传
     *
     * @param file
     * @return
     * @throws Exception
     * @author yixiu
     */
    public String uploadFile(MultipartFile file, String access_token) throws Exception {
        String url = "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=" + access_token + "&type=image";
        String result = null;
        String fileName = file.getOriginalFilename();
        URL urlObj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) urlObj.openConnection();
        con.setRequestMethod("POST");
        con.setDoInput(true);
        con.setDoOutput(true);
        con.setUseCaches(false);
        // 设置请求头信息
        con.setRequestProperty("Connection", "Keep-Alive");
        con.setRequestProperty("Charset", "UTF-8");
        // 设置边界
        String BOUNDARY = "----------" + System.currentTimeMillis();
        con.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
        // 请求正文信息
        // 第一部分：
        StringBuilder sb = new StringBuilder();
        sb.append("--"); // 必须多两道线
        sb.append(BOUNDARY);
        sb.append("\r\n");
        sb.append("Content-Disposition: form-data;name=\"media\";filename=\"" + fileName + "\"\r\n");
        sb.append("Content-Type:application/octet-stream\r\n\r\n");
        byte[] head = sb.toString().getBytes(StandardCharsets.UTF_8);
        // 获得输出流
        OutputStream out = new DataOutputStream(con.getOutputStream());
        // 输出表头
        out.write(head);
        // 文件正文部分
        // 把文件已流文件的方式 推入到url中
        DataInputStream in = new DataInputStream(file.getInputStream());
        int bytes = 0;
        byte[] bufferOut = new byte[1024];
        while ((bytes = in.read(bufferOut)) != -1) {
            out.write(bufferOut, 0, bytes);
        }
        in.close();
        // 结尾部分
        byte[] foot = ("\r\n--" + BOUNDARY + "--\r\n").getBytes(StandardCharsets.UTF_8);// 定义最后数据分隔线
        out.write(foot);
        out.flush();
        out.close();
        StringBuffer buffer = new StringBuffer();
        BufferedReader reader = null;
        try {
            // 定义BufferedReader输入流来读取URL的响应
            reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
            String line = null;
            while ((line = reader.readLine()) != null) {
                buffer.append(line);
            }
            if (result == null) {
                result = buffer.toString();
            }
        } catch (IOException e) {
            System.out.println("发送POST请求出现异常！ {}");
            e.printStackTrace();
            throw new IOException("数据读取异常");
        } finally {
            if (reader != null) {
                reader.close();
            }
        }
        // 获取到返回HTTP结果
        Map<String, Object> map = JSONObject.parseObject(result, Map.class);
        if (map.containsKey("media_id")) {
            return map.get("media_id").toString();
        }
        System.out.println("小程序上传临时素材出错，返回信息为：    " + result);
        return null;
    }

    @PostConstruct
    public void init() {
        wxXCXTempSend = this;
        wxXCXTempSend.redisTemplate = this.redisTemplate;
        wxXCXTempSend.stringRedisTemplate = this.stringRedisTemplate;
        wxXCXTempSend.redisUtils = this.redisUtils;

    }

}