package com.lf.server.controller.show;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.metadata.OrderItem;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.lf.server.annotation.SysLog;
import com.lf.server.controller.all.BaseQueryController;
import com.lf.server.entity.all.HttpStatus;
import com.lf.server.entity.all.ResponseMsg;
import com.lf.server.entity.all.StaticData;
import com.lf.server.entity.ctrl.DownloadReqEntity;
import com.lf.server.entity.data.DownloadEntity;
import com.lf.server.entity.data.MetaEntity;
import com.lf.server.entity.data.VerEntity;
import com.lf.server.entity.sys.UserEntity;
import com.lf.server.helper.*;
import com.lf.server.mapper.all.BasicMapper;
import com.lf.server.service.all.BaseQueryService;
import com.lf.server.service.data.DownloadService;
import com.lf.server.service.data.MetaService;
import com.lf.server.service.data.VerService;
import com.lf.server.service.show.DataLibService;
import com.lf.server.service.sys.DownlogService;
import com.lf.server.service.sys.TokenService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.*;

/**
 * 资料馆
 * @author WWW
 */
@Api(tags = "综合展示\\资料馆")
@RestController
@RequestMapping("/dataLib")
public class DataLibController extends BaseQueryController {
    @Autowired
    MetaService metaService;

    @Autowired
    TokenService tokenService;

    @Autowired
    DataLibService dataLibService;

    @Autowired
    BaseQueryService baseQueryService;

    @Autowired
    VerService verService;

    @SysLog()
    @ApiOperation(value = "根据目录ID查询版本列表")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "dirid", value = "目录ID", dataType = "Integer", paramType = "query")
    })
    @GetMapping(value = "/selectVerByDirid")
    public ResponseMsg<List<VerEntity>> selectVerByDirid(Integer dirid) {
        try {
            if (null == dirid || dirid < 0) {
                dirid = 0;
            }

            List<VerEntity> list = verService.selectByDirid(dirid);
            if (null == list || list.isEmpty()) {
                list = verService.selectByDirid(0);
            }

            return success(list);
        } catch (Exception ex) {
            return fail(ex, null);
        }
    }

    @SysLog()
    @ApiOperation(value = "分页查询元数据")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "depcode", value = "单位编码", dataType = "String", paramType = "query", example = "00"),
            @ApiImplicitParam(name = "dirs", value = "目录编码", dataType = "String", paramType = "query", example = "00,01"),
            @ApiImplicitParam(name = "name", value = "名称", dataType = "String", paramType = "query", example = ""),
            @ApiImplicitParam(name = "pageSize", value = "每页条数", dataType = "Integer", paramType = "query", example = "10"),
            @ApiImplicitParam(name = "pageIndex", value = "分页数（从1开始）", dataType = "Integer", paramType = "query", example = "1")
    })
    @GetMapping(value = "/selectMetasForPage")
    public ResponseMsg<Object> selectMetasForPage(String depcode, String dirs, String name, Integer pageSize, Integer pageIndex) {
        try {
            if (pageSize < 1 || pageIndex < 1) {
                return fail("每页页数或分页数小于1", null);
            }
            dirs = DataLibService.copeCodes(dirs, "dircode");

            int count = metaService.selectMetasForCount(depcode, dirs, name);
            if (count == 0) {
                return success(0, null);
            }

            List<MetaEntity> rs = metaService.selectMetasForPage(depcode, dirs, name, pageSize, pageSize * (pageIndex - 1));

            return success(count, rs);
        } catch (Exception ex) {
            return fail(ex, null);
        }
    }

    @SysLog()
    @ApiOperation(value = "查询表中数据")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "id", value = "元数据ID", dataType = "Integer", paramType = "query", example = "115"),
            @ApiImplicitParam(name = "pageIndex", value = "分页数（从1开始）", dataType = "Integer", paramType = "query", example = "1"),
            @ApiImplicitParam(name = "pageSize", value = "每页条数", dataType = "Integer", paramType = "query", example = "10")
    })
    @GetMapping(value = "/selectDbData")
    public ResponseMsg<Object> selectDbData(Integer id, Integer pageIndex, Integer pageSize) {
        // noinspection AlibabaRemoveCommentedCode
        try {
            if (null == id || id < 0) {
                return fail("元数据ID不能为空或小于0", null);
            }

            MetaEntity meta = metaService.selectById(id);
            if (null == meta || null == meta.getTab() || !meta.getTab().contains(StaticData.POINT)) {
                return fail("找不到元数据信息", null);
            }

            String entity = meta.getTab().substring(meta.getTab().indexOf(".") + 1).replace("_", "").toLowerCase();
            BasicMapper baseMapper = ClassHelper.getBasicMapper(entity);
            if (null == baseMapper) {
                return null;
            }

            QueryWrapper wrapper = new QueryWrapper();
            wrapper.eq("parentid", meta.getEventid());

            Page<Object> page = new Page<>(pageIndex, pageSize);
            page.addOrder(OrderItem.desc("gid"));
            IPage<Object> paged = baseMapper.selectPage(page, wrapper);

            return success(paged.getTotal(), paged.getRecords());
        } catch (Exception ex) {
            return fail(ex, null);
        }
    }

    @SysLog()
    @ApiOperation(value = "请求元数据下载")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "dr", value = "请求下载实体", dataType = "DownloadReqEntity", paramType = "body")
    })
    @ResponseBody
    @PostMapping(value = "/downloadReq")
    public ResponseMsg<Object> downloadReq(@RequestBody DownloadReqEntity dr, HttpServletRequest req, HttpServletResponse res) {
        try {
            if (null == dr || StringHelper.isEmpty(dr.getPwd())) {
                return fail("密码不能为空");
            }
            if (null == dr.getIds() || dr.getIds().isEmpty()) {
                return fail("请选择要下载的文件ID");
            }
            if (!DownloadService.decryptPwd(dr)) {
                return fail("密码解密失败", null);
            }
            if (StringHelper.isPwdInvalid(dr.getPwd())) {
                return fail("密码不符合要求");
            }

            UserEntity ue = tokenService.getCurrentUser(req);
            String guid = metaService.downloadMeteReq(ue, dr);

            return success(guid);
        } catch (Exception ex) {
            return fail(ex, null);
        }
    }

    @SysLog()
    @ApiOperation(value = "查询下载文件")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "guid", value = "文件GUID", dataType = "String", paramType = "query"),
            @ApiImplicitParam(name = "pwd", value = "密码", dataType = "String", paramType = "query")
    })
    @GetMapping(value = "/selectDownloadFile")
    public ResponseMsg<Boolean> selectDownloadFile(String guid, String pwd) {
        try {
            if (StringHelper.isEmpty(guid) || StringHelper.isEmpty(pwd)) {
                return fail("文件ID和密码不能为空", null);
            }
            if (!pwd.endsWith(StaticData.EQ)) {
                pwd = URLDecoder.decode(pwd, StandardCharsets.UTF_8.name());
            }

            String password = DownloadService.decryptPwd(pwd);
            if (null == password) {
                return fail("密码解密失败", null);
            }

            DownloadEntity de = downloadService.selectByGuid(guid);
            if (null == de) {
                return fail("文件不存在", null);
            }
            if (!StringHelper.isNull(de.getPwd()) && !Md5Helper.validatePassword(password, de.getPwd())) {
                return fail("密码不正确", null);
            }

            String filePath = downloadService.getDownloadFilePath(de);
            File file = new File(filePath);

            return success(file.exists());
        } catch (Exception ex) {
            return fail(ex, false);
        }
    }

    @SysLog()
    @ApiOperation(value = "下载文件")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "guid", value = "文件GUID", dataType = "String", paramType = "query"),
            @ApiImplicitParam(name = "pwd", value = "密码", dataType = "String", paramType = "query")
    })
    @ResponseBody
    @GetMapping(value = "/downloadFile")
    @SuppressWarnings("AlibabaRemoveCommentedCode")
    public void downloadFile(String guid, String pwd, HttpServletRequest req, HttpServletResponse res) {
        try {
           /*if (StringHelper.isEmpty(guid) || StringHelper.isEmpty(pwd)) {
                WebHelper.writeInfo(HttpStatus.BAD_REQUEST, "文件ID和密码不能为空", res);
            }
            if (!pwd.endsWith(StaticData.EQ)) {
                pwd = URLDecoder.decode(pwd, StandardCharsets.UTF_8.name());
            }

            String password = DownloadService.decryptPwd(pwd);
            if (null == password) {
                WebHelper.writeInfo(HttpStatus.BAD_REQUEST, "密码解密失败", res);
            }*/

            DownloadEntity de = downloadService.selectByGuid(guid);
            if (null == de) {
                WebHelper.writeInfo(HttpStatus.NOT_FOUND, "文件不存在", res);
                return;
            }
            /*if (!StringHelper.isNull(de.getPwd()) && !Md5Helper.validatePassword(password, de.getPwd())) {
                WebHelper.writeInfo(HttpStatus.UNAUTHORIZED, "密码不正确", res);
            }*/

            UserEntity ue = tokenService.getCurrentUser(req);
            downlogService.updateInfos(ue, de, req);

            String filePath = downloadService.getDownloadFilePath(de);
            WebHelper.download(filePath, de.getName(), res);
        } catch (Exception ex) {
            WebHelper.writeInfo(HttpStatus.ERROR, ex.getMessage(), res);
        }
    }
}