package com.kmall.admin.controller;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.net.InetAddress;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import com.kmall.admin.entity.SalesDataDownloadEntity;
import com.kmall.admin.entity.SalesDataUploadEntity;
import com.kmall.admin.fromcomm.entity.SysUserEntity;
import com.kmall.admin.service.SalesDataUploadService;
import com.kmall.admin.utils.ParamUtils;
import com.kmall.admin.utils.ShiroUtils;
import com.kmall.common.fileserver.util.FileManager;
import com.kmall.common.utils.*;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;

/**
 * 销售数据上传表Controller
 *
 * @author emato
 * @email admin@qhdswl.com
 * @date 2020-11-16 14:11:53
 */
@Controller
@RequestMapping("salesdataupload")
public class SalesDataUploadController {
    @Autowired
    private SalesDataUploadService salesDataUploadService;

    /**
     * 查看列表
     */
    @RequestMapping("/list")
//    @RequiresPermissions("salesdataupload:list")
    @ResponseBody
    public R list(@RequestParam Map<String, Object> params) {
        ParamUtils.setQueryPowerByRoleType(params, "shopSN", "merchSN", "thirdMerchSN");
        //查询列表数据
        Query query = new Query(params);

        List<SalesDataUploadEntity> salesDataUploadList = salesDataUploadService.queryList(query);
        int total = salesDataUploadService.queryTotal(query);

        PageUtils pageUtil = new PageUtils(salesDataUploadList, total, query.getLimit(), query.getPage());

        return R.ok().put("page", pageUtil);
    }

    /**
     * 查看信息
     */
    @RequestMapping("/info/{fileId}")
    @RequiresPermissions("salesdataupload:info")
    @ResponseBody
    public R info(@PathVariable("fileId") Integer fileId) {
        SalesDataUploadEntity salesDataUpload = salesDataUploadService.queryObject(fileId);

        return R.ok().put("salesDataUpload", salesDataUpload);
    }

    /**
     * 保存
     */
    @RequestMapping("/save")
//    @RequiresPermissions("salesdataupload:save")
    @ResponseBody
    public R save(@RequestBody SalesDataUploadEntity salesDataUpload) {
        salesDataUploadService.save(salesDataUpload);

        return R.ok();
    }

    /**
     * 修改
     */
    @RequestMapping("/update")
    @RequiresPermissions("salesdataupload:update")
    @ResponseBody
    public R update(@RequestBody SalesDataUploadEntity salesDataUpload) {
        salesDataUploadService.update(salesDataUpload);

        return R.ok();
    }

    /**
     * 删除
     */
    @RequestMapping("/delete")
//    @RequiresPermissions("salesdataupload:delete")
    @ResponseBody
    public R delete(@RequestBody Integer[] fileIds) {
        salesDataUploadService.deleteBatch(fileIds);

        return R.ok();
    }

    /**
     * 查看所有列表
     */
    @RequestMapping("/queryAll")
    @ResponseBody
    public R queryAll(@RequestParam Map<String, Object> params) {

        List<SalesDataUploadEntity> list = salesDataUploadService.queryList(params);

        return R.ok().put("list", list);
    }

    /**
     * 上传文件
     * @param file
     * @return
     * @throws Exception
     */
    @RequestMapping("/upload")
    @ResponseBody
    public R upload(@RequestParam("file") MultipartFile file,@RequestParam Map<String, Object> params) throws Exception {
        if (file.isEmpty()) {
            throw new RRException("上传文件不能为空");
        }

        //上传文件
        String url = FileManager.upload(file);

        SalesDataUploadEntity salesDataUploadEntity = new SalesDataUploadEntity();
        salesDataUploadEntity.setFileName(file.getOriginalFilename());
        salesDataUploadEntity.setFileType(file.getContentType());
        salesDataUploadEntity.setUploadAddress(url);
        salesDataUploadEntity.setCreaterSn(ShiroUtils.getUserId().intValue());
        salesDataUploadEntity.setCreaterTime(new Date());
        salesDataUploadEntity.setMerchSN((String) params.get("merchSN"));
        salesDataUploadEntity.setThirdMerchSN((String) params.get("thirdMerchSN"));
        salesDataUploadEntity.setShopSN((String) params.get("shopSN"));

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        salesDataUploadEntity.setBillTime(sdf.parse((String) params.get("billTime")));
        salesDataUploadEntity.setCheckTime(sdf.parse((String) params.get("checkTime")));
        salesDataUploadService.save(salesDataUploadEntity);

        R r = R.ok();
        r.put("url", url);
        r.put("salesDataUpload", salesDataUploadEntity);
        return r;
    }

    /**
     * 文件下载
     * @param filePath
     * @return
     * @throws Exception
     */
    @RequestMapping("/download")
    public ResponseEntity<byte[]> download(
            HttpServletResponse response,
            @RequestParam("filePath") String filePath, @RequestParam("fileName") String fileName, @RequestParam("fileId") String fileId) throws Exception {
        if(StringUtils.isNotEmpty(filePath)){

            Map<String, byte[]> files = new HashMap<String, byte[]>();

            String[] filePaths = filePath.split(",");
            String[] fileNames = fileName.split(",");
            String[] fileIds = fileId.split(",");


            for(int i = 0 ; i < filePaths.length ; i++){
                SalesDataDownloadEntity salesDataDownloadEntity = new SalesDataDownloadEntity();
                salesDataDownloadEntity.setFileId(Integer.valueOf(fileIds[i]));
                salesDataDownloadEntity.setDownloadSn(ShiroUtils.getUserId().intValue());
                salesDataDownloadEntity.setDownloadTime(new Date());

                InetAddress localHost = InetAddress.getLocalHost();
                salesDataDownloadEntity.setDownloadIP(localHost.getHostAddress());
                salesDataUploadService.saveSalesDownload(salesDataDownloadEntity);

                ResponseEntity<byte[]> download = FileManager.download(filePaths[i], fileNames[i].substring(0, fileNames[i].lastIndexOf(".")));
                byte[] msg = download.getBody();
                files.put(fileNames[i],msg);
            }


            downloadBatchByFile(response,files,"CW保税+新零售销售额统计.zip");
        }
        return null;
    }



    /**
     * 根据文件，进行压缩，批量下载
     * @param response
     * @param files
     * @throws Exception
     */
    public void downloadBatchByFile(HttpServletResponse response, Map<String, byte[]> files, String zipName){
        try{
            response.setContentType("application/x-msdownload");
            response.setHeader("content-disposition", "attachment;filename="+ URLEncoder.encode(zipName, "utf-8"));

            ZipOutputStream zos = new ZipOutputStream(response.getOutputStream());
            BufferedOutputStream bos = new BufferedOutputStream(zos);

            for(Map.Entry<String, byte[]> entry : files.entrySet()){
                String fileName = entry.getKey();            //每个zip文件名
                byte[]    file = entry.getValue();            //这个zip文件的字节

                BufferedInputStream bis = new BufferedInputStream(new ByteArrayInputStream(file));
                zos.putNextEntry(new ZipEntry(fileName));

                int len = 0;
                byte[] buf = new byte[10 * 1024];
                while( (len=bis.read(buf, 0, buf.length)) != -1){
                    bos.write(buf, 0, len);
                }
                bis.close();
                bos.flush();
            }
            bos.close();
        }catch(Exception e){
            e.printStackTrace();
        }
    }
}