package com.skua.modules.filesystem.controller;

import java.io.InputStream;
import java.util.*;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.stream.Collectors;
import javax.servlet.http.HttpServletRequest;


import com.skua.core.api.vo.Result;
import com.skua.core.aspect.annotation.AutoLog;
import com.skua.core.query.QueryGenerator;
import com.skua.modules.filesystem.entity.FileSystemLaws;
import com.skua.modules.filesystem.service.IFileSystemLawsService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.skua.redis.component.Key2ValueService;
import lombok.extern.slf4j.Slf4j;

import org.apache.commons.lang.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.jeecgframework.poi.excel.ExcelImportUtil;
import org.jeecgframework.poi.excel.def.NormalExcelConstants;
import org.jeecgframework.poi.excel.entity.ExportParams;
import org.jeecgframework.poi.excel.entity.ImportParams;
import org.jeecgframework.poi.excel.view.JeecgEntityExcelView;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;
import com.alibaba.fastjson.JSON;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;

/**
 * 法律法规及规程
 */
@Slf4j
@Api(tags = "法律法规及规程")
@RestController
@RequestMapping("/filesystem/fileSystemLaws")
public class FileSystemLawsController {

    @Autowired
    private IFileSystemLawsService fileSystemLawsService;
    @Autowired
    private Key2ValueService key2ValueService;

    /**
     * 分页列表查询
     *
     * @param fileSystemLaws
     * @param pageNo
     * @param pageSize
     * @param req
     * @return
     */
    @AutoLog(value = "法律法规及规程-分页列表查询")
    @ApiOperation(value = "法律法规及规程-分页列表查询", notes = "法律法规及规程-分页列表查询")
    @GetMapping(value = "/list")
    public Result<IPage<FileSystemLaws>> queryPageList(FileSystemLaws fileSystemLaws,
                                                       @RequestParam(name = "pageNo", defaultValue = "1") Integer pageNo,
                                                       @RequestParam(name = "pageSize", defaultValue = "10") Integer pageSize,
                                                       HttpServletRequest req) {
        Result<IPage<FileSystemLaws>> result = new Result<>();
        QueryWrapper<FileSystemLaws> queryWrapper = QueryGenerator.initQueryWrapper(fileSystemLaws, req.getParameterMap());
        Page<FileSystemLaws> page = new Page<FileSystemLaws>(pageNo, pageSize);
        IPage<FileSystemLaws> pageList = fileSystemLawsService.page(page, queryWrapper);
        result.setSuccess(true);
        result.setResult(pageList);
        return result;
    }

    /**
     * 添加
     *
     * @param fileSystemLaws
     * @return
     */
    @AutoLog(value = "法律法规及规程-添加")
    @ApiOperation(value = "法律法规及规程-添加", notes = "法律法规及规程-添加")
    @PostMapping(value = "/add")
    public Result<FileSystemLaws> add(@RequestBody FileSystemLaws fileSystemLaws) {
        Result<FileSystemLaws> result = new Result<>();
        try {
            fileSystemLawsService.save(fileSystemLaws);
            result.success("添加成功！");
        } catch (Exception e) {
            log.error(e.getMessage(), e);
            result.error500("操作失败");
        }
        return result;
    }

    /**
     * 编辑
     *
     * @param fileSystemLaws
     * @return
     */
    @AutoLog(value = "法律法规及规程-编辑")
    @ApiOperation(value = "法律法规及规程-编辑", notes = "法律法规及规程-编辑")
    @PutMapping(value = "/edit")
    public Result<FileSystemLaws> edit(@RequestBody FileSystemLaws fileSystemLaws) {
        Result<FileSystemLaws> result = new Result<>();
        FileSystemLaws fileSystemLawsEntity = fileSystemLawsService.getById(fileSystemLaws.getId());
        if (fileSystemLawsEntity == null) {
            result.error500("未找到对应实体");
        } else {
            boolean ok = fileSystemLawsService.updateById(fileSystemLaws);
            //TODO 返回false说明什么？
            if (ok) {
                result.success("修改成功!");
            }
        }

        return result;
    }

    /**
     * 通过id删除
     *
     * @param id
     * @return
     */
    @AutoLog(value = "法律法规及规程-通过id删除")
    @ApiOperation(value = "法律法规及规程-通过id删除", notes = "法律法规及规程-通过id删除")
    @DeleteMapping(value = "/delete")
    public Result<?> delete(@RequestParam(name = "id") String id) {
        try {
            fileSystemLawsService.removeById(id);
        } catch (Exception e) {
            log.error("删除失败: {}", e.getMessage());
            return Result.error("删除失败!");
        }
        return Result.ok("删除成功!");
    }

    /**
     * 批量删除
     *
     * @param ids
     * @return
     */
    @AutoLog(value = "法律法规及规程-批量删除")
    @ApiOperation(value = "法律法规及规程-批量删除", notes = "法律法规及规程-批量删除")
    @DeleteMapping(value = "/deleteBatch")
    public Result<FileSystemLaws> deleteBatch(@RequestParam(name = "ids") String ids) {
        Result<FileSystemLaws> result = new Result<>();
        if (ids == null || "".equals(ids.trim())) {
            result.error500("参数不识别！");
        } else {
            this.fileSystemLawsService.removeByIds(Arrays.asList(ids.split(",")));
            result.success("删除成功!");
        }
        return result;
    }

    /**
     * 通过id查询
     *
     * @param id
     * @return
     */
    @AutoLog(value = "法律法规及规程-通过id查询")
    @ApiOperation(value = "法律法规及规程-通过id查询", notes = "法律法规及规程-通过id查询")
    @GetMapping(value = "/queryById")
    public Result<FileSystemLaws> queryById(@RequestParam(name = "id") String id) {
        Result<FileSystemLaws> result = new Result<>();
        FileSystemLaws fileSystemLaws = fileSystemLawsService.getById(id);
        if (fileSystemLaws == null) {
            result.error500("未找到对应实体");
        } else {
            result.setResult(fileSystemLaws);
            result.setSuccess(true);
        }
        return result;
    }

    /**
     * 导出excel
     *
     * @param request
     */
    @RequestMapping(value = "/exportXls")
    public ModelAndView exportXls(HttpServletRequest request) {
        // Step.1 组装查询条件
        QueryWrapper<FileSystemLaws> queryWrapper = null;
        try {
            String paramsStr = request.getParameter("paramsStr");
            if (StringUtils.isNotEmpty(paramsStr)) {
                String deString = URLDecoder.decode(paramsStr, "UTF-8");
                FileSystemLaws fileSystemLaws = JSON.parseObject(deString, FileSystemLaws.class);
                queryWrapper = QueryGenerator.initQueryWrapper(fileSystemLaws, request.getParameterMap());
            }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }

        //Step.2 AutoPoi 导出Excel
        ModelAndView mv = new ModelAndView(new JeecgEntityExcelView());
        List<FileSystemLaws> pageList = fileSystemLawsService.list(queryWrapper);
        //导出文件名称
        mv.addObject(NormalExcelConstants.FILE_NAME, "法律法规及规程列表");
        mv.addObject(NormalExcelConstants.CLASS, FileSystemLaws.class);
        mv.addObject(NormalExcelConstants.PARAMS, new ExportParams("法律法规及规程列表数据", "导出人:Jeecg", "导出信息"));
        mv.addObject(NormalExcelConstants.DATA_LIST, pageList);
        return mv;
    }

    /**
     * 通过excel导入数据
     *
     * @param request
     * @return
     */
    @RequestMapping(value = "/importExcel", method = RequestMethod.POST)
    public Result<?> importExcel(HttpServletRequest request) throws Exception {
        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
        Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();
        Map<String, String> sysDepartKey2ValMap = key2ValueService.dictKey2Val("sysDepart", true);
        List<FileSystemLaws> fileSystemLawsList = new ArrayList<>();
        for (Map.Entry<String, MultipartFile> entity : fileMap.entrySet()) {
            // 获取上传文件对象
            MultipartFile multipartFile = entity.getValue();
            String filename = multipartFile.getOriginalFilename();
            if (StringUtils.isEmpty(filename)) {
                continue;
            }
            Workbook workbook;
            InputStream inputStream;
            try {
                inputStream = multipartFile.getInputStream();
                workbook = new XSSFWorkbook(inputStream);
            } catch (Exception e) {
                inputStream = multipartFile.getInputStream();
                workbook = new HSSFWorkbook(inputStream);
            }
            // 获取第一个sheet
            Sheet sheet0 = workbook.getSheet("法律法规及规程");
            int j;
            for (int i = 1; i < sheet0.getLastRowNum(); i++) {
                FileSystemLaws fileSystemLaws = new FileSystemLaws();
                Row curRow = sheet0.getRow(i);
                // 序号忽略; j = 0;
                // 文件全称
                j = 1;
                curRow.getCell(j).setCellType(Cell.CELL_TYPE_STRING);
                String fileName = curRow.getCell(j).getStringCellValue();
                fileSystemLaws.setFileName(fileName);
                // 发布机构
                j = 2;
                curRow.getCell(j).setCellType(Cell.CELL_TYPE_STRING);
                String departId_dictText = curRow.getCell(j).getStringCellValue();
                String departId = sysDepartKey2ValMap.getOrDefault(departId_dictText, "");
                fileSystemLaws.setDepartId(departId);
                // 文件编号
                j = 3;
                curRow.getCell(j).setCellType(Cell.CELL_TYPE_STRING);
                String fileNumber = curRow.getCell(j).getStringCellValue();
                fileSystemLaws.setFileNumber(fileNumber);
                // 备注
                j = 4;
                curRow.getCell(j).setCellType(Cell.CELL_TYPE_STRING);
                String remark = curRow.getCell(j).getStringCellValue();
                fileSystemLaws.setRemark(remark);
                fileSystemLawsList.add(fileSystemLaws);
            }
            inputStream.close();
        }
        fileSystemLawsList = fileSystemLawsList.stream().filter(item -> StringUtils.isNotEmpty(item.getDepartId()) || StringUtils.isNotEmpty(item.getFileName())).collect(Collectors.toList());
        fileSystemLawsService.saveBatch(fileSystemLawsList);
        return Result.ok("文件导入成功！");
    }

}