package com.hssx.cloudmodel.service.impl;
import	java.io.RandomAccessFile;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.hssx.cloudmodel.constant.Constant;
import com.hssx.cloudmodel.entity.*;
import com.hssx.cloudmodel.entity.vo.UserVO;
import com.hssx.cloudmodel.mapper.*;
import com.hssx.cloudmodel.service.ProjectFileService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hssx.cloudmodel.service.ProjectOperationDynamicsService;
import com.hssx.cloudmodel.util.FileUtil;
import com.hssx.cloudmodel.util.HttpRespMsg;
import com.hssx.cloudmodel.util.OpenOfficeService;
import com.hssx.cloudmodel.util.QcloudUntil;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.Base64Utils;
import org.springframework.web.multipart.MultipartFile;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URLEncoder;
import java.time.LocalDateTime;
import java.util.List;
import java.util.UUID;

/**
 * <p>
 * 服务实现类
 * </p>
 *
 * @author 吴涛涛
 * @since 2019-07-30
 */
@Service
public class ProjectFileServiceImpl extends ServiceImpl<ProjectFileMapper, ProjectFile> implements ProjectFileService {

    @Resource
    UserMapper userMapper;
    @Resource
    ProjectFileMapper projectFileMapper;
    @Resource
    ProjectOperationDynamicsMapper projectOperationDynamicsMapper;
    @Resource
    ProjectMapper projectMapper;
    @Resource
    PdfFileMapper pdfFileMapper;
    @Resource
    ProjectApproveMapper projectApproveMapper;
    @Resource
    NewsNoticeMapper newsNoticeMapper;
    @Resource
    NewsNoticeUserMapper newsNoticeUserMapper;

    @Override
    public HttpRespMsg addFile(UserVO userVO, MultipartFile file, String path) {
        HttpRespMsg msg = new HttpRespMsg();
        User user = userMapper.selectOne(new QueryWrapper<User>().eq("head_imgurl", userVO.getToken()));
        if (user != null) {
            if (file != null) {
                ProjectFile projectFile = new ProjectFile();
                projectFile.setUploaderId(user.getId());
                projectFile.setUploader(user.getUsername());
                projectFile.setProjectId(userVO.getProjectId());
                File dir = null;
                dir = new File(path);
                // D://cloud/upload 文件上传后所存储的位置,部署到服务器上时配置服务器地址即可
                if (!dir.exists()) {
                    dir.mkdirs();
                }
                String fileName = "";
                if (file != null) {
                    fileName = file.getOriginalFilename();
                    projectFile.setFileName(fileName);
                    projectFile.setFileSize(FileUtil.getReadableFileSize(file.getSize()));
                    System.out.println("上传文件名称" + file.getName() + "， dir = " + dir.getAbsolutePath());
                    int pos = fileName.lastIndexOf(".");
                    String rand = UUID.randomUUID().toString().replaceAll("-", "");
                    String sufix = fileName.substring(pos);
                    fileName = rand + sufix;
                    projectFile.setFileType(sufix);//文件后缀
                    projectFile.setUrl("/upload/" + fileName);
                    File saveFile = new File(dir, fileName);
                    projectFileMapper.insert(projectFile);
                    try {
                        saveFile.createNewFile();
                        file.transferTo(saveFile);
                        //将文件传到腾讯云
                        final String qFileName = fileName;
                        new Thread(){
                            public void run() {
                                QcloudUntil.upload(path + qFileName,qFileName);
                                QcloudUntil.close();
                            }
                        }.start();
                        if (OpenOfficeService.canTransferToPdf(projectFile.getFileType())) {
                            //上传完，需要生成pdf
                            OpenOfficeService openOfficeService = new OpenOfficeService();
                            String dFile1 = path+UUID.randomUUID().toString().replaceAll("-", "")+".pdf";
                            openOfficeService.start();
                            File newFile = new File(dFile1);
                            if(!newFile .exists()){
                                openOfficeService.office2PDF(path + fileName,dFile1);
                                PdfFile pdfFile = new PdfFile();
                                pdfFile.setPdfUrl("/upload/"+dFile1.substring(path.length()));
                                pdfFile.setFileId(projectFile.getId());
                                pdfFile.setType(1);
                                pdfFile.setRafId(projectFile.getProjectId());
                                pdfFile.setSourceFileUrl(projectFile.getUrl());
                                pdfFileMapper.insert(pdfFile);
                            }
                            openOfficeService.shutdown();
                        }

                    } catch (IOException e) {
                        e.printStackTrace();
                        projectFile = null;
                    } catch (Exception e) {
                        e.printStackTrace();
                        projectFile = null;
                    }
                    //添加上传记录
                    ProjectOperationDynamics dynamics = new ProjectOperationDynamics();
                    dynamics.setContent(Constant.UPLOAD);
                    dynamics.setFileName(file.getOriginalFilename());
                    dynamics.setOperatorId(user.getId());
                    dynamics.setOperator(user.getUsername());
                    dynamics.setProjectId(userVO.getProjectId());
                    projectOperationDynamicsMapper.insert(dynamics);
                }
                msg.data = projectFile;
            }
        } else {
            msg.setError("当前用户不存在或者未登录");
        }
        return msg;
    }

    @Override
    public HttpRespMsg dowloadFile(ProjectFile projectFile, String token, String downLoadpath, HttpServletResponse response, String path) throws FileNotFoundException, UnsupportedEncodingException {
        HttpRespMsg msg = new HttpRespMsg();
        User user = userMapper.selectOne(new QueryWrapper<User>().eq("head_imgurl", token));
        //添加上传记录
        ProjectOperationDynamics dynamics = new ProjectOperationDynamics();
        dynamics.setContent(Constant.DOWNLOAD);
        ProjectFile file = projectFileMapper.selectById(projectFile.getId());
        dynamics.setFileName(file.getFileName());
        dynamics.setOperatorId(user.getId());
        dynamics.setOperator(user.getUsername());
        dynamics.setProjectId(file.getProjectId());
        projectOperationDynamicsMapper.insert(dynamics);
        downloadLocal(response, downLoadpath, file, path);
        return msg;
    }

    public void downloadLocal(HttpServletResponse response, String downLoadpath, ProjectFile file, String path) throws FileNotFoundException, UnsupportedEncodingException {
//        // 下载本地文件
//        String fileName = file.getFileName().toString(); // 文件的默认保存名
//        // 读到流中
//        File dir = null;
//        dir = new File(downLoadpath);
//        // D://cloud/upload 文件上传后所存储的位置,部署到服务器上时配置服务器地址即可
//        if (!dir.exists()) {
//            dir.mkdirs();
//        }
//        InputStream inStream = new FileInputStream(path.substring(0, path.length() - "/upload/".length())+file.getUrl());// 文件的存放路径
//        // 设置输出的格式
//        response.reset();
//        response.setContentType("bin");
//        response.addHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");
//        // 循环取出流中的数据
//        byte[] b = new byte[100];
//        int len;
//        try {
//            while ((len = inStream.read(b)) > 0)
//                response.getOutputStream().write(b, 0, len);
//            inStream.close();
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
        /*文件下载*/


//        public static void downloadFile (HttpServletResponse response, String fileName, String path){
        //下载本地文件
        String fileName = file.getFileName().toString(); // 文件的默认保存名
        // 读到流中
        File dir = null;
        dir = new File(downLoadpath);
        // D://cloud/upload 文件上传后所存储的位置,部署到服务器上时配置服务器地址即可
        if (!dir.exists()) {
            dir.mkdirs();
        }
        if (fileName != null) {
            //设置文件路径
            File file1 = new File(path.substring(0, path.length() - "/upload/".length()) + file.getUrl());
            if (file1.exists()) {
                response.setHeader("content-type", "application/octet-stream");
                response.setContentType("application/octet-stream");
                try {
                    response.setHeader("Content-Disposition", "attachment;filename=" + new String(fileName.getBytes("utf-8"), "ISO-8859-1"));
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
                byte[] buffer = new byte[1024];
                FileInputStream fis = null;
                BufferedInputStream bis = null;
                try {
                    fis = new FileInputStream(file1);
                    bis = new BufferedInputStream(fis);
                    OutputStream os = response.getOutputStream();
                    int i = bis.read(buffer);
                    while (i != -1) {
                        os.write(buffer, 0, i);
                        i = bis.read(buffer);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    if (bis != null) {
                        try {
                            bis.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    if (fis != null) {
                        try {
                            fis.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
        }
    }

    @Override
    public HttpRespMsg getFileList(UserVO userVO, String path) {
        HttpRespMsg msg = new HttpRespMsg();
        User user = userMapper.selectOne(new QueryWrapper<User>().eq("head_imgurl", userVO.getToken()));
        List<ProjectFile> list = projectFileMapper.selectList(new QueryWrapper<ProjectFile>().eq("project_id", userVO.getProjectId()).orderByDesc("id"));
//        for (ProjectFile projectFile : list) {
//            projectFile.setUrl(path+projectFile.getUrl().substring("/upload/".length()));
//        }
        msg.data = list;
        return msg;
    }

    @Override
    public HttpRespMsg delFile(ProjectFile projectFile, String token, Integer isPass) {
        HttpRespMsg msg = new HttpRespMsg();
        User user = userMapper.selectOne(new QueryWrapper<User>().eq("head_imgurl", token));//当前审批人
        //查询项目
//        Project project = projectMapper.selectById(projectFile.getProjectId());
        if (user == null) {
            msg.setError("当前用户不存在或者未登录");
            return msg;
        } else {
            if(user != null){
                projectFile = projectFileMapper.selectById(projectFile.getId());
                ProjectOperationDynamics dynamics = new ProjectOperationDynamics();
                dynamics.setProjectId(projectFile.getProjectId());
                dynamics.setOperatorId(user.getId());
                dynamics.setOperator(user.getUsername());
                dynamics.setFileName(projectFile.getFileName());
                if (isPass == 1) {
                    //同意
                    dynamics.setContent("已同意申请,自动删除该文件");
                    msg.data = projectFileMapper.deleteById(projectFile.getId());
                } else {
                    //不同意
                    dynamics.setContent("拒绝了删除申请");
                    //更新文件状态
                    projectFile.setStatus(0);
                    projectFileMapper.updateById(projectFile);
                }
                projectOperationDynamicsMapper.insert(dynamics);
            }else{
                msg.setError("当前用户不存在或者未登录");
                return msg;
            }
        }
        return msg;
    }

    @Override
    public HttpRespMsg delFileApplication(ProjectFile projectFile, String token, String reason) {
        HttpRespMsg msg = new HttpRespMsg();
        User user = userMapper.selectOne(new QueryWrapper<User>().eq("head_imgurl", token));
        Project project = projectMapper.selectById(projectFileMapper.selectById(projectFile.getId()).getProjectId());
        if (user == null) {
            msg.setError("当前用户不存在或者未登录");
            return msg;
        } else {
            if((Constant.SYS_ID.equals(user.getParentId()) && user.getSubordinateType()==0)||project.getManagerId().equals(user.getId())){
                //修改状态， 发送消息通知资方审批人
                projectFile.setStatus(1);//删除待审批
                projectFileMapper.updateById(projectFile);
                projectFile = projectFileMapper.selectById(projectFile.getId());
                ProjectOperationDynamics dynamic = new ProjectOperationDynamics();
                ProjectApprove approve = projectApproveMapper.selectOne(new QueryWrapper<ProjectApprove>().eq("project_id", project.getId()).eq("subordinate_type", 0));
                dynamic.setContent("申请删除文件"+(StringUtils.isNotEmpty(reason)?("(原因："+reason+")"):"")+",待"+approve.getApproverName()+"审批");
                dynamic.setFileName(projectFile.getFileName());
                dynamic.setOperator(user.getUsername());
                dynamic.setOperatorId(user.getId());
                dynamic.setProjectId(project.getId());
                projectOperationDynamicsMapper.insert(dynamic);

                NewsNotice notice = new NewsNotice();
                notice.setContent("申请删除文件"+(StringUtils.isNotEmpty(reason)?("(原因："+reason+")"):"")+"，请审批");
                notice.setNoticeType(0);//待审批
                notice.setRefId(projectFile.getId());//附带项目文件id
                notice.setProjectName(project.getProjectName());
                notice.setProjectId(project.getId());
                notice.setBelongType(6);//项目文档类型
                newsNoticeMapper.insert(notice);
                //发送给审批人
                NewsNoticeUser newsNoticeUser = new NewsNoticeUser();
                newsNoticeUser.setNewsId(notice.getId());
                newsNoticeUser.setUserId(approve.getApproverId());
                newsNoticeUser.setIsRead(0);
                newsNoticeUserMapper.insert(newsNoticeUser);

                msg.data = approve.getApproverName();//返回审批人姓名
            }else{
                msg.setError("当前用户不存在或者未登录");
                return msg;
            }
        }
        return msg;
    }
}