package com.whyc.controller;

import com.arcsoft.face.FaceEngine;
import com.arcsoft.face.toolkit.ImageFactory;
import com.arcsoft.face.toolkit.ImageInfo;
import com.whyc.constant.YamlProperties;
import com.whyc.dto.Response;
import com.whyc.factory.FaceEngineFactory;
import com.whyc.pojo.db_user.UserInf;
import com.whyc.service.FaceService;
import com.whyc.service.UserInfService;
import com.whyc.util.ActionUtil;
import com.whyc.util.CommonUtil;
import com.whyc.util.FaceIdentifyUtil;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.system.ApplicationHome;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;
import sun.misc.BASE64Decoder;

import javax.annotation.Resource;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * 人脸识别
 */
@RequestMapping("face")
@RestController
@Api(tags = "用户管理-人脸识别")
public class FaceController {

    @Resource
    private FaceService service;

    @Resource
    private UserInfService userService;

    //@Resource
    //private MapOutlineService mapOutlineService;


    @GetMapping("activeOnline")
    @ApiOperation(value = "在线激活人脸识别引擎",notes = "只需要刚开始时调用一次,会导致appId与硬件设备绑定,必须有外部网络,否则激活会失败!" +
            "后续使用无需再调用激活,可以离线使用")
    public Response activeOnline(){
        boolean b = FaceIdentifyUtil.active(1);
        if(b){
            return new Response().set(1,true,"引擎激活成功");
        }else{
            return new Response().set(1,false,"引擎激活失败,请检查网络是否为外网并确认appId和key是否正确!");
        }
    }

    @GetMapping("activeOffline")
    @ApiOperation(value = "离线激活人脸识别引擎,增值版使用")
    public Response activeOffline(){
        boolean b = FaceIdentifyUtil.active(2);
        if(b){
            return new Response().set(1,true,"引擎激活成功");
        }else{
            return new Response().set(1,false,"引擎激活失败,请检查网络是否为外网并确认appId和key是否正确!");
        }
    }

    @PostMapping
    @ApiOperation(value = "添加",notes = "添加到人脸库")
    public Response add(@RequestBody Map<String,Object> paramMap ){
        String fileData = (String) paramMap.get("fileData");
        String uName  = (String) paramMap.get("uName");
        //过滤 uName的特殊字符,避免路径遍历攻击
        uName = ActionUtil.filterFileName(uName);
        Integer uId  = Integer.parseInt((String)paramMap.get("uId"));
        //传参 uId,uName,fileData--文件流
        fileData = fileData.replaceAll(" ", "+");

        //由于图片字符串是由base64编码的,解码成字节数组
        //data:image/jpeg;base64,
        // fileData = fileData.replaceAll("data:image/jpeg;base64,","");
        fileData = fileData.split(",")[1];
        BASE64Decoder decoder = new BASE64Decoder();
        byte[] dataBytes = new byte[0];
        try {
            dataBytes = decoder.decodeBuffer(fileData);
            /*for (int i = 0; i < dataBytes.length; ++i) {
                if (dataBytes[i] < 0) {// 调整异常数据
                    dataBytes[i] += 256;
                }
            }*/
        } catch (IOException e) {
            e.printStackTrace();
        }

        /*=========检查图片是否有效=======*/
        //检验图片是否有效
        ImageInfo imageInfo = ImageFactory.getRGBData(dataBytes);
        //初始化引擎
//        FaceEngine faceEngine = FaceIdentifyUtil.init();
        FaceEngine faceEngine = FaceEngineFactory.getInstance();
        if (faceEngine==null){
            return new Response().set(1,false,"初始化引擎失败");
        }else {
            //检查角度是否端正,检查人脸像素大小是否>50×50
            Response checkRes1 = FaceIdentifyUtil.orientAndPxDetect(faceEngine,imageInfo);
            if((boolean)checkRes1.getData()){
                /*=========图片保存===========*/
                ApplicationHome applicationHome = new ApplicationHome(getClass());
                File jarFile = applicationHome.getDir();

                //存储人脸图片的文件夹
                String fileDirName;
                if(YamlProperties.runModel == 1) {
                    fileDirName = jarFile.getParentFile().toString() + File.separator + "fg_photo";
                }else{
                    fileDirName = jarFile.toString() + File.separator + "fg_photo";
                }

                File file = new File(fileDirName);
                //不存在则创建该文件夹
                if (!file.exists()) {
                    file.mkdirs();
                }

                //文件全路径
                String fileName = fileDirName + File.separator + uName + ".jpg";
                FileOutputStream fot=null;
                try {
                    fot = new FileOutputStream(fileName);
                    fot.write(dataBytes);
                    fot.flush();

                } catch (IOException e) {
                    e.printStackTrace();
                }finally {
                    if(fot!=null){
                        try {
                            fot.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }

                /*=========数据库表更新===========*/
                // model = service.add(uId, uName, projectName);
                service.add(uId, uName, fileName);

                return new Response().set(1,true,"新增成功");
            }
            return checkRes1;
        }

    }

    /**
     * 人脸库管理: 更新
     * @return
     */
    @PostMapping("update")
    @ApiOperation(value = "更新")
    public Response update(@RequestBody String fileData,@RequestParam String uName){
        //传参,uName,fileData--文件流

        //过滤 uName的特殊字符,避免路径遍历攻击
        uName = ActionUtil.filterFileName(uName);
        //由于图片字符串是由base64编码的,解码成字节数组
        fileData = fileData.replaceAll(" ", "+");
        fileData = fileData.split(",")[1];
        BASE64Decoder decoder = new BASE64Decoder();
        byte[] dataBytes = new byte[0];
        try {
            dataBytes = decoder.decodeBuffer(fileData);
        } catch (IOException e) {
            e.printStackTrace();
        }

        /*=========检查图片是否有效=======*/
        //检验图片是否有效
        //获取图像信息
        ImageInfo imageInfo = ImageFactory.getRGBData(dataBytes);
        //初始化引擎
//        FaceEngine faceEngine = FaceIdentifyUtil.init();
        FaceEngine faceEngine = FaceEngineFactory.getInstance();
        if (faceEngine==null){
            return new Response().set(1,false,"初始化引擎失败");
        }else {
            //检测图片
            Response checkRes1 = FaceIdentifyUtil.orientAndPxDetect(faceEngine, imageInfo);
            if ((boolean)checkRes1.getData()) {
                /*=========图片保存===========*/
                ApplicationHome applicationHome = new ApplicationHome(getClass());
                File jarFile = applicationHome.getDir();

                //存储人脸图片的文件夹
                String fileDirName;
                if(YamlProperties.runModel == 1) {
                    fileDirName = jarFile.getParentFile().toString() + File.separator + "fg_photo";
                }else{
                    fileDirName = jarFile.toString() + File.separator + "fg_photo";
                }

                File file = new File(fileDirName);
                //不存在则创建该文件夹
                if (!file.exists()) {
                    file.mkdirs();
                }

                //文件全路径
                String fileName = fileDirName + File.separator + uName + ".jpg";
                FileOutputStream fot =null;
                try {
                    fot = new FileOutputStream(fileName);
                    fot.write(dataBytes);
                    fot.flush();
                } catch (IOException e) {
                    e.printStackTrace();
                }finally {
                    if(fot!=null){
                        try {
                            fot.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
                return new Response().set(1,"更新成功");
            }
            return checkRes1;
        }
    }

    /**
     * 人脸库管理: 删除
     * @return
     */
    @PostMapping("delete")
    @ApiOperation(value = "删除")
    @Transactional
    public Response delete(@RequestParam Integer uId,@RequestParam Integer faceId,
                         @RequestParam String uName,HttpServletRequest request){

        //过滤 uName的特殊字符,避免路径遍历攻击
        uName = ActionUtil.filterFileName(uName);
        //更新user_inf和face表
        service.update(uId,faceId);

        //删除图片
        //获取到图片所在文件夹的全路径
        String fileName = findFileDirPath(request);
        //获取图片的全路径
        File file = new File(fileName+File.separator+uName+".jpg");
        if(file.exists()){
            file.delete();
        }

        return new Response().set(1,"删除成功");
    }

    /**获取图片文件夹全路径
     * @param request*/
    private String findFileDirPath(HttpServletRequest request) {
        ApplicationHome applicationHome = new ApplicationHome(getClass());
        File jarFile = applicationHome.getDir();
        //在jar包所在目录下生成一个upload文件夹用来存储上传的图片
        return jarFile.getParentFile().toString()+File.separator+"fg_photo";
    }

    /**获取图片的http加载url*/
    private String findWebPhotoUrl(String uName){
        HttpServletRequest request = ActionUtil.getRequest();
        //获取项目名称
        String realPath = ActionUtil.getApplication().getRealPath("/");
        //String[] split = realPath.split("/");
        String[] split = realPath.split(File.separator);
        String projectName = split[split.length - 1];
        //图片保存路径,采取ip+port访问形式而非硬盘形式,方便图片加载
        String url = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+"/"+projectName+"_photo/"+uName+".jpg";
        return url;
    }

    /**
     * 人脸库管理: 查询分页列表
     * 现在逻辑是当前用户查询自己的人脸信息
     * @return
     */
    @GetMapping("info")
    @ApiOperation(value = "查询人脸信息")
    public Response getInfo(HttpServletRequest request){
        //传入pageNum,pageSize
        UserInf userInf = (UserInf) request.getSession().getAttribute("user");
        UserInf user = service.getInfo(userInf.getUid());

        return new Response().set(1,user);
    }

    /**
     * 人脸识别: 活体检验,相似度对比,1比N
     */
    @PostMapping("faceCompare2N")
    @ApiOperation(value = "人脸识别对比")
    public Response faceCompare2N(@RequestBody String fileData,@RequestParam String ukeyId,HttpServletRequest request){
        Response res = new Response();
        //先验证uKeyId对应的用户
        UserInf userByUKeyId = userService.getUserByUKeyId(ukeyId);
        if (userByUKeyId == null){
            return res.set(1,false,"Ukey没有绑定用户");
        }

        /*====获取图片并校验活体,角度,像素大小====*/
        //由于图片字符串是由base64编码的,解码成字节数组
        fileData = fileData.replaceAll(" ", "+");
        fileData = fileData.split(",")[1];
        BASE64Decoder decoder = new BASE64Decoder();
        byte[] dataBytes = new byte[0];
        try {
            dataBytes = decoder.decodeBuffer(fileData);
        } catch (IOException e) {
            e.printStackTrace();
        }
        ImageInfo imageInfo = ImageFactory.getRGBData(dataBytes);
        FaceEngine faceEngine = FaceEngineFactory.getInstance();
        if(faceEngine!=null) {
            res = FaceIdentifyUtil.liveDetect(faceEngine, imageInfo);
            //活体校验通过
            if (res.getCode() == 1) {
                res = FaceIdentifyUtil.orientAndPxDetect(faceEngine, imageInfo);
                //人像角度,大小校验通过
                if((boolean) res.getData()) {
                    //重置标识
                    res.setData(null);
                    res.setMsg(null);
                    //获取数据库中所有的人脸图片
                    List<UserInf> userInfList = service.findAllFaceUrl();
                    if(userInfList.size()==0){
                        res.setCode(0);
                        res.setMsg("人脸库暂无任何数据");
                    }else{
                        boolean urlExist = false;
                        for (UserInf temp:userInfList){
                            String filePath = temp.getFace().getUrl();
                            File file = new File(filePath);
                            //不存在则不继续执行
                            if(!file.exists()){
                                continue;
                            }else{
                                urlExist = true;
                            }
                            ImageInfo imageInfo2 = ImageFactory.getRGBData(file);
                            res = FaceIdentifyUtil.faceCompare(faceEngine, imageInfo, imageInfo2);
                            //对比成功,记录用户登录信息
                            if((boolean) res.getData()){
                                //Ukey对应用户和人脸对应用户验证
                                if(!(temp.getUid()==userByUKeyId.getUid())){
                                    return res.set(1,false,"UKey对应用户和当前人脸对应用户不匹配");
                                }
                                List<Object> dataList = new ArrayList<>();
                                dataList.add(temp);

                                // 将登陆成功的用户存入session
                                ServletContext servletContext = request.getServletContext();
                                servletContext.setAttribute(temp.getUname(), request.getSession().getId());
                                ActionUtil.getSession().setAttribute("user", temp);

                                //设置session不活动时间为30分
                                ActionUtil.getSession().setMaxInactiveInterval(60 * 30);
                                ActionUtil.getSession().setAttribute("ip", ActionUtil.getRequest().getRemoteAddr());
                               /* List<PermitGroup> permitList = permitGroupUserService.getPermitByUser(temp.getUId());
                                if (permitList!=null && permitList.size()!=0) {
                                    dataList.add(permitList.get(0).getPermitGroupId());
                                    ActionUtil.getSession().setAttribute("permits", permitList);
                                } else {
                                    res.setCode(1);
                                    res.setData(false);
                                    res.setMsg("还未分配权限");
                                }
*/
                                //查询用户对应的班组标识
                                //dataList.add(baoJiGroupUserService.getGroupFlag(temp.getUId().intValue()));
                                //查询激活的地图
                                //String mapName = mapOutlineService.selectMapName();
                               //dataList.add(mapName);
                                //CommonUtil.record(temp.getUId(), UserOperation.TYPE_LOGIN.getType(), UserOperation.TYPE_LOGIN.getTypeName(), UserOperation.TYPE_LOGIN.getTypeNameEn());
                                res.setData2(dataList);

                                //将新登录的用户存入application
                                userService.setApplication(temp);
                            }
                        }
                        if(!urlExist){
                            res.set(1,false,"ukey对应的人脸库路径不存在");
                        }
                    }
                }
            }
        }else{
            res.setCode(0);
            res.setMsg("初始化引擎失败");
        }

        return res;
    }

}