package com.doc.biz.controller;

import com.aspose.pdf.Document;
import com.aspose.pdf.SaveFormat;
import com.doc.biz.domain.*;
import com.doc.biz.service.*;
import com.doc.biz.vo.DocumentVO;
import com.doc.biz.vo.UserVO;
import com.doc.common.annotation.Log;
import com.doc.common.constant.Constants;
import com.doc.common.core.controller.BaseController;
import com.doc.common.core.domain.AjaxResult;
import com.doc.common.core.domain.entity.SysUser;
import com.doc.common.core.page.TableDataInfo;
import com.doc.common.enums.BusinessType;
import com.doc.common.enums.EventLevel;
import com.doc.common.utils.SecurityUtils;
import com.doc.common.utils.StringUtils;
import com.doc.common.utils.bean.BeanUtils;
import com.doc.common.utils.file.FileUtils;
import com.doc.common.utils.poi.ExcelUtil;
import com.doc.system.service.ISysUserService;
import io.swagger.annotations.*;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.yaml.snakeyaml.util.UriEncoder;

import javax.annotation.Resource;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;
import java.util.*;

/**
 * 文件基本信息表Controller
 *
 * @author wukai
 * @date 2023-08-15
 */
@Api(tags = "文件基本信息表")
@RestController
@RequestMapping("/biz/info")
@Slf4j
public class DocInfoController extends BaseController {
    @Resource
    private IDocInfoService docInfoService;
    @Resource
    private IMongoService mongoService;
    @Resource
    private IDocDirService dirService;
    @Resource
    private IDocFavoriteService favoriteService;
    @Resource
    private IDocRecentService recentService;
    @Resource
    private IElasticSearchService elasticSearchService;
    @Resource
    private IDocInfoDelService delService;
    @Resource
    private IDocActorUserService actorUserService;
    @Resource
    private IDocDirUserService dirUserService;
    @Resource
    private ISysUserService userService;

    /**
     * 文件上传
     *
     * @param file 文件
     * @return 上传结果
     */
    @ApiOperation("文件上传-单文件")
    @Log(title = "文件基本信息表", businessType = BusinessType.INSERT, eventLevel = EventLevel.MIDDLE)
    @PostMapping("/upload")
    public AjaxResult uploadFile(@ApiParam(value = "文件", required = true) @RequestPart(value = "file") MultipartFile file, @ApiParam(value = "空间ID", required = true) @RequestParam Long spaceId, @ApiParam(value = "目录ID", required = true) @RequestParam Long dirId) {
        try {
            DocumentVO vo = mongoService.uploadFile(file);
            docInfoService.upload(vo, spaceId, dirId);
            return success();
        } catch (Exception e) {
            log.error("文件上传失败：", e);
            return error(e.getMessage());
        }
    }

    /**
     * 多文件上传
     *
     * @param files 文件列表
     * @return 返回
     */
    @ApiOperation("文件上传-多文件")
    @PostMapping("/uploadFiles")
    @Log(title = "文件基本信息表", businessType = BusinessType.INSERT, eventLevel = EventLevel.MIDDLE)
    public AjaxResult uploadFile(@ApiParam(value = "文件", required = true) @RequestPart(value = "files") List<MultipartFile> files, @ApiParam(value = "空间ID", required = true) @RequestParam Long spaceId, @ApiParam(value = "目录ID", required = true) @RequestParam Long dirId) {
        try {
            mongoService.uploadFiles(files).forEach(vo -> {
                docInfoService.upload(vo, spaceId, dirId);
            });
            return success();
        } catch (Exception e) {
            e.printStackTrace();
            return error(e.getMessage());
        }
    }


    /**
     * 新建文件
     */
    @ApiOperation("新建文件")
    @GetMapping("/create")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "type", value = "文件类型 \"word\"：word文档 \"excel\"：excel文件 \"ppt\"：ppt文件  \"txt\"：文本文件", required = true, dataTypeClass = Long.class),
            @ApiImplicitParam(name = "spaceId", value = "空间ID", required = true, dataTypeClass = Long.class),
            @ApiImplicitParam(name = "dirId", value = "目录ID", required = true, dataTypeClass = String.class),
            @ApiImplicitParam(name = "name", value = "文件名", required = true, dataTypeClass = String.class)
    })
    @Log(title = "文件基本信息表", businessType = BusinessType.INSERT, eventLevel = EventLevel.MIDDLE)
    public AjaxResult create(Long spaceId, Long dirId, String type, String name) {
        try {
            String filePath = "";
            String fileName = "";
            switch (type) {
                case "word":
                    filePath = "file/new.docx";
                    fileName = StringUtils.isNotEmpty(name) ? name + ".docx" : "新建word文档.docx";
                    break;
                case "excel":
                    filePath = "file/new.xlsx";
                    fileName = StringUtils.isNotEmpty(name) ? name + ".xlsx" : "新建Excel文档.xlsx";
                    break;
                case "ppt":
                    filePath = "file/new.pptx";
                    fileName = StringUtils.isNotEmpty(name) ? name + ".pptx" : "新建ppt文档.pptx";
                    break;
                case "txt":
                    filePath = "file/new.txt";
                    fileName = StringUtils.isNotEmpty(name) ? name + ".txt" : "新建文本文档.txt";
                    break;
            }

            InputStream is = this.getClass().getResourceAsStream("/" + filePath);
            MultipartFile multipartFile = FileUtils.getMultipartFile(is, fileName);
            DocumentVO vo = mongoService.uploadFile(multipartFile);
            DocInfo docInfo = docInfoService.upload(vo, spaceId, dirId);
            return success(docInfo);
        } catch (Exception e) {
            log.error("新建文件出错啦：{}", e.getMessage());
            return error("新建文件出错");
        }
    }

    /**
     * 文件移动
     */
    @ApiOperation("文件移动")
    @GetMapping("/move")
    @Log(title = "文件基本信息表", businessType = BusinessType.UPDATE, eventLevel = EventLevel.MIDDLE)
    @ApiImplicitParams({@ApiImplicitParam(name = "docId", value = "文件ID", required = true, dataTypeClass = Long.class),
            @ApiImplicitParam(name = "spaceId", value = "空间ID", required = true, dataTypeClass = Long.class),
            @ApiImplicitParam(name = "dirId", value = "新目录ID", required = true, dataTypeClass = Long.class)})
    public AjaxResult move(Long docId, Long dirId) {
        DocInfo info = docInfoService.selectDocInfoByDocId(docId);
        if (info == null) {
            return error("该文件已失效！");
        }
        info.setDirId(dirId);

        info.setUpdateBy(SecurityUtils.getUsername());
        docInfoService.updateDocInfo(info);
        return success();
    }

    /**
     * 复制文件
     */
    @ApiOperation("文件复制")
    @GetMapping("/copy")
    @Log(title = "文件基本信息表", businessType = BusinessType.INSERT, eventLevel = EventLevel.MIDDLE)
    @ApiImplicitParams({@ApiImplicitParam(name = "docId", value = "文件ID", required = true, dataTypeClass = Long.class),
            @ApiImplicitParam(name = "spaceId", value = "空间ID", required = true, dataTypeClass = Long.class),
            @ApiImplicitParam(name = "dirId", value = "新目录ID", required = true, dataTypeClass = Long.class)})
    public AjaxResult copy(Long docId, Long spaceId, Long dirId) {
        DocInfo info = docInfoService.selectDocInfoByDocId(docId);
        if (info == null) {
            return error("该文件已失效！");
        }

        String ext = info.getFileType();
        if (StringUtils.isNotEmpty(ext)) {
            //因为数据库存的是带 . 的，所以要先截取掉这个 .
            ext = ext.substring(1);
            if (Arrays.asList(Constants.ALLOW_EDIT).contains(ext)) {
                //判断是否 onlyoffice允许的可编辑文件格式，如果是，则需要复制一份，如果不是就不管
                DocumentVO vo = mongoService.copy(info.getFileId());
                info.setFileId(vo.getFileId());
            }
        }

        info.setDocId(null);
        info.setSpaceId(spaceId);
        info.setDirId(dirId);
        info.setFileName(info.getFileName());
        docInfoService.insertDocInfo(info);

        return success(info);
    }


    /**
     * 重命名
     */
    @ApiOperation("文件重命名")
    @GetMapping("/rename")
    @Log(title = "文件基本信息表", businessType = BusinessType.UPDATE, eventLevel = EventLevel.MIDDLE)
    @ApiImplicitParams({@ApiImplicitParam(name = "docId", value = "文件ID", required = true, dataTypeClass = Long.class),
            @ApiImplicitParam(name = "name", value = "新文件名", required = true, dataTypeClass = Long.class)})
    public AjaxResult rename(Long docId, String name) {
        DocInfo info = new DocInfo();
        info.setDocId(docId);
        info.setFileName(name);

        info.setUpdateBy(SecurityUtils.getUsername());

        return success(docInfoService.updateDocInfo(info));
    }

    /**
     * 查询文件基本信息表列表
     */
//    @ApiOperation("文件列表")
    //@PreAuthorize("@ss.hasPermi('biz:info:list')")
    @GetMapping("/list")
    public TableDataInfo list(DocInfo docInfo) {
        startPage();
        List<DocInfo> list = docInfoService.selectDocInfoList(docInfo);
        return getDataTable(list);
    }

    /**
     * 查询所有已失效的文件，就是mysql中有，mongo中没有的
     */
    @GetMapping("/lose")
    public AjaxResult list() {
        List<DocInfo> docInfoList = docInfoService.selectLoseList();
        return AjaxResult.success(docInfoList);
    }

    @GetMapping("/content/{docId}")
    @ApiOperation("根据ID查询文本内容")
    public AjaxResult content(@ApiParam(value = "文件ID", required = true) @PathVariable Long docId) {
        EsDocInfo info = elasticSearchService.getEsDocInfo(docId);
        return AjaxResult.success(info);
    }

    /**
     * 文件搜索
     */
    @ApiOperation("文件搜索")
    //@PreAuthorize("@ss.hasPermi('biz:info:list')")
    @GetMapping("/search")
    public TableDataInfo search(@ApiParam(value = "搜索关键字", required = true) @RequestParam String keyword, @ApiParam(value = "空间类型（1.公共 2.部门 3.个人 不传该参数则为全部）") String type) {
        Map<String, Object> temp = dirService.selectDirByUser(SecurityUtils.getUserId(), type);
        List<DocDir> dirList = (List<DocDir>) temp.get("dir");
        List<DocSpace> spaceList = (List<DocSpace>) temp.get("space");
        Map<Long, DocDir> dirMap = new HashMap<>(16);
        Map<Long, DocSpace> spaceMap = new HashMap<>(16);
        List<Long> dirIds = new ArrayList<>();
        dirList.forEach(dir -> {
            dirIds.add(dir.getDirId());
            dirMap.put(dir.getDirId(), dir);
        });

        DocInfo docInfo = new DocInfo();
        spaceList.forEach(space -> {
            if (type != null && type.equals(space.getSpaceType())) {
                docInfo.setSpaceId(space.getSpaceId());
            }
            spaceMap.put(space.getSpaceId(), space);
        });

        docInfo.setFileName(keyword);
        if (dirIds.size() > 0) {
            Map<String, Object> map = new HashMap<>(4);
            map.put("dirIds", dirIds);
            docInfo.setParams(map);
        }
        startPage();
        List<DocInfo> list = docInfoService.selectDocInfoList(docInfo);
        list.forEach(info -> {
            info.setDir(dirMap.get(info.getDirId()));
            info.setSpace(spaceMap.get(info.getSpaceId()));
        });
        return getDataTable(list);
    }

    /**
     * 查询文件基本信息表列表
     */
    @ApiOperation("根据目录ID查询文件列表")
    //@PreAuthorize("@ss.hasPermi('biz:info:list')")
    @GetMapping("/list/{dirId}")
    public TableDataInfo list4dir(@PathVariable("dirId") Long dirId) {
        startPage();
        DocInfo docInfo = new DocInfo();
        docInfo.setDirId(dirId);
        List<DocInfo> list = docInfoService.selectDocInfoList(docInfo);
        return getDataTable(list);
    }

    /**
     * 导出文件基本信息表列表
     */
//    @ApiOperation("导出文件基本信息表列表")
    //@PreAuthorize("@ss.hasPermi('biz:info:export')")
    @Log(title = "文件基本信息表", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    public void export(HttpServletResponse response, DocInfo docInfo) {
        List<DocInfo> list = docInfoService.selectDocInfoList(docInfo);
        ExcelUtil<DocInfo> util = new ExcelUtil<DocInfo>(DocInfo.class);
        util.exportExcel(response, list, "文件基本信息表数据");
    }

    /**
     * 获取文件基本信息表详细信息
     */
    @ApiOperation("文件详细信息")
    //@PreAuthorize("@ss.hasPermi('biz:info:query')")
    @GetMapping(value = "/{docId}")
    public AjaxResult getInfo(@PathVariable("docId") Long docId) {
        return success(docInfoService.selectDocInfoByDocId(docId));
    }

    /**
     * 新增文件基本信息表
     */
//    @ApiOperation("新增文件基本信息表")
    //@PreAuthorize("@ss.hasPermi('biz:info:add')")
    @Log(title = "文件基本信息表", businessType = BusinessType.INSERT, eventLevel = EventLevel.MIDDLE)
    @PostMapping
    public AjaxResult add(@RequestBody DocInfo docInfo) {
        return toAjax(docInfoService.insertDocInfo(docInfo));
    }

    /**
     * 修改文件基本信息表
     */
//    @ApiOperation("修改文件基本信息表")
    //@PreAuthorize("@ss.hasPermi('biz:info:edit')")
    @Log(title = "文件基本信息表", businessType = BusinessType.UPDATE, eventLevel = EventLevel.MIDDLE)
    @PutMapping
    public AjaxResult edit(@RequestBody DocInfo docInfo) {
        docInfo.setUpdateBy(SecurityUtils.getUsername());
        return toAjax(docInfoService.updateDocInfo(docInfo));
    }

    /**
     * 删除文件基本信息表
     */
    @ApiOperation("文件删除")
    //@PreAuthorize("@ss.hasPermi('biz:info:remove')")
    @Log(title = "文件基本信息表", businessType = BusinessType.DELETE, eventLevel = EventLevel.MIDDLE)
    @DeleteMapping("/{docIds}")
    public AjaxResult remove(@PathVariable Long[] docIds) {
        List<DocInfo> list = new ArrayList<>();
        for (Long docId : docIds) {
            DocInfo info = docInfoService.selectDocInfoByDocId(docId);
            list.add(info);
        }
        int i = docInfoService.deleteDocInfoByDocIds(docIds);
        list.forEach(info -> {
            DocInfoDel del = new DocInfoDel();
            del.setRemark(getUsername());
            BeanUtils.copyProperties(info, del);
            delService.insertDocInfoDel(del);
            /**取消删除mongo
             try {
             //删除mongo记录
             mongoService.removeFile(info.getFileId());
             } catch (Exception ignored) {
             }*/
            try {
                //删除es记录
                elasticSearchService.delete(info.getDocId());
            } catch (Exception ignored) {
            }
            //删除收藏记录
            favoriteService.delete("N", info.getDocId());
            //删除最近记录
            recentService.delete("N", info.getDocId());
        });
        return toAjax(i);
    }


    /**
     * 文件下载
     */
    @ApiOperation("文件预览")
    @GetMapping("/access/{docId}")
    public ResponseEntity<Object> access(@PathVariable(name = "docId") Long docId) {

        DocInfo info = docInfoService.selectDocInfoByDocId(docId);
        //插入最近文件
        DocRecent recent = new DocRecent();
        recent.setIsFolder("N");
        recent.setOwner(SecurityUtils.getUserId());
        recent.setRelaId(info.getDocId());
        recentService.insertDocRecent(recent);

        return mongoService.download(info.getFileId(), false);
    }

    @ApiOperation("使用该文档的人员")
    @GetMapping("/users/{docId}")
    public AjaxResult users(@PathVariable(name = "docId") Long docId) {

        DocInfo info = docInfoService.selectDocInfoByDocId(docId);
        List<UserVO> voList = new ArrayList<>();
        String yes = "Y";
        if (yes.equals(info.getIsActor())) {
            actorUserService.selectDocActorUserListByDocId(docId).forEach(u -> {
                UserVO vo = new UserVO();
                vo.setUserId(u.getUserId());
                vo.setUserName(u.getName());
                SysUser user = userService.selectUserById(u.getUserId());
                vo.setDeptName(user.getDept().getDeptName());
                voList.add(vo);
            });
        } else {
            DocDirUser dirUser = new DocDirUser();
            dirUser.setDirId(info.getDirId());
            dirUserService.selectDocDirUserList(dirUser).forEach(u -> {
                UserVO vo = new UserVO();
                vo.setUserId(u.getUserId());
                vo.setUserName(u.getUserName());
                SysUser user = userService.selectUserById(u.getUserId());
                vo.setDeptName(user.getDept().getDeptName());
                voList.add(vo);
            });
            ;
//            dirService.
            //TODO
//            }
        }
        return success(voList);
    }

    /**
     * 文件下载
     */
    @ApiOperation("文件下载")
    @GetMapping("/download/{docId}")
    public ResponseEntity<Object> download(@PathVariable(name = "docId") Long docId) {
        DocInfo info = docInfoService.selectDocInfoByDocId(docId);
        return mongoService.download(info.getFileId(), true);
    }

    @ApiOperation("pdf转word")
    @Log(title = "PDF转WORD", businessType = BusinessType.INSERT, eventLevel = EventLevel.MIDDLE)
    @PostMapping("/pdf2word")
    public void pdf2word(@ApiParam(value = "文件", required = true) @RequestPart(value = "file") MultipartFile file, HttpServletResponse response) {
        try (Document doc = new Document(file.getInputStream());) {
            write(doc, file.getOriginalFilename(), response);
        } catch (Exception e) {
            logger.error("Pdf 转 Word 失败{}", e.getMessage());
            e.printStackTrace();
        }
    }

    /**
     * 写入文件流
     *
     * @param doc      doc
     * @param fileName 文件流
     * @param response res
     */
    private void write(Document doc, String fileName, HttpServletResponse response) {
        try (ServletOutputStream os = response.getOutputStream();) {
            //doc是将要被转化的word文档
            String disposition = "attachment; filename=\"" + UriEncoder.encode(fileName) + "\"";
            response.addHeader(HttpHeaders.CONTENT_DISPOSITION, disposition);
            response.addHeader(HttpHeaders.CONTENT_TYPE, "application/octet-stream");
            response.setContentType("application/octet-stream");
            //全面支持DOC, DOCX, OOXML, RTF HTML, OpenDocument, PDF, EPUB, XPS, SWF 相互转换
            doc.save(os, SaveFormat.DocX);
            os.flush();
        } catch (Exception e) {
            logger.error("Pdf 转 Word 失败{}", e.getMessage());
            e.printStackTrace();
        }
    }


    @ApiOperation("pdf转word")
    @Log(title = "PDF转WORD", businessType = BusinessType.INSERT, eventLevel = EventLevel.MIDDLE)
    @GetMapping("/pdf2word/{fileId}")
    public void pdf2word(@PathVariable(name = "fileId") String fileId, HttpServletResponse response) {
        DocumentVO vo = mongoService.downloadFile(fileId);
        try (Document doc = new Document(vo.getData())) {
            write(doc, vo.getFileName(), response);
        } catch (Exception e) {
            logger.error("Pdf 转 Word 失败{}", e.getMessage());
            e.printStackTrace();
        }
    }
}