package com.ld.igds.io.fzzy;


import com.alibaba.fastjson.JSON;
import com.ld.igds.constant.RedisConst;
import com.ld.igds.io.fzzy.dto.IoMessage;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.RandomUtils;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Base64;

/**
 * 工具类
 *
 * @author vince
 */
@Slf4j
public class ServerUtils {


    public static final String VERSION_1 = "v1.0";


    public static final String SIGN_DEFAULT = "0000";

    public static final String CHARSET = "UTF-8";
    public static final String MSG_BEGIN = "<BHZN>";
    public static final String MSG_END = "<END>";

    //功能码
    public static final String FUNCTION_1001 = "1001";// 基础参数配置
    public static final String FUNCTION_2001 = "2001";// 开始检测
    public static final String FUNCTION_2002 = "2002";// 停止检测
    public static final String FUNCTION_2003 = "2003";// 进度查询
    public static final String FUNCTION_2004 = "2004";// 结果上报
    public static final String FUNCTION_2005 = "2005";// 坐标提取
    public static final String FUNCTION_2006 = "2006";// 远程抓拍
    public static final String FUNCTION_2007 = "2007";// 心跳维持
    public static final String FUNCTION_1002 = "1002";// 时间同步
    public static final String FUNCTION_1003 = "1003";// 设备登陆


    //响应码
    public static String RESP_0 = "0";//	成功
    public static String RESP_1 = "1";//	命令格式错误
    public static String RESP_2 = "2";//	命令数据检验异常
    public static String RESP_3 = "3";//	发送超时错误
    public static String RESP_4 = "4";//	终端设备不在线
    public static String RESP_5 = "5";//	终端设备执行中
    public static String RESP_6 = "6";//	终端设备抓拍失败
    public static String RESP_9 = "9";//	其它错误

    /**
     * 生成TCP连接的KEY
     *
     * @param ip
     * @param port
     * @return
     */
    public static String getServerKey(String ip, Integer port) {
        return ip + ":" + port;
    }

    /**
     * @param message
     * @return
     */
    public static IoMessage buildMessage(String message) throws Exception {
        IoMessage ioMessage = JSON.parseObject(message, IoMessage.class);
        return ioMessage;
    }

    /**
     * base64转为图片
     *
     * @param path   文件路径：到文件夹即可，代码里会在文件夹里生成对应的jpg文件
     * @param base64
     * @return
     */
    public static String base64ToJpg(String path, String fileName, String base64) {
        // 判断文件路径是否存在
        File filePath = new File(path);
        if (!filePath.exists()) {
            filePath.mkdirs();
        }
        // 创建文件
        String jpgFile = path + "\\" + fileName + ".jpg";
        File file = new File(jpgFile);
        boolean jpgFileExist = false;
        try {
            jpgFileExist = file.createNewFile();
            log.info("jpg文件创建成功");
        } catch (IOException e) {
            log.info("jpg文件创建失败");
            e.printStackTrace();
        }
        if (jpgFileExist) {
            // 解密
            Base64.Decoder decoder = Base64.getDecoder();
            // 去掉base64前缀 data:image/jpeg;base64,
            base64 = base64.substring(base64.indexOf(",", 1) + 1, base64.length());
            byte[] b = decoder.decode(base64);
            // 处理数据
            for (int i = 0; i < b.length; ++i) {
                if (b[i] < 0) {
                    b[i] += 256;
                }
            }
            // 保存图片
            try {
                FileOutputStream out = new FileOutputStream(jpgFile);
                out.write(b);
                out.flush();
                out.close();
                // 写入成功返回文件路径
                return jpgFile;
            } catch (FileNotFoundException e) {
                log.info("文件未找到");
                e.printStackTrace();
            } catch (IOException e) {
                log.info("写入失败");
                e.printStackTrace();
            }
        }
        return "文件不存在";
    }

    public static String buildRequestKey(String companyId, String sn) {
        return RedisConst.buildKey(companyId, sn);
    }

    public static String createOrderId() {
        return RandomUtils.nextInt(1000, 9999) + "";
    }
}