package com.zc.business.controller;

import com.ruoyi.common.annotation.Log;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.core.controller.BaseController;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.page.TableDataInfo;
import com.ruoyi.common.enums.BusinessType;
import com.ruoyi.common.exception.file.FileSizeLimitExceededException;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.framework.config.ServerConfig;
import com.zc.business.domain.DcFileDownload;
import com.zc.business.enums.UniversalEnum;
import com.zc.business.service.IDcFileDownloadService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.util.List;

/**
 * 文件管理Controller
 *
 * @author ruoyi
 * @date 2024-06-12
 */

@RestController
@RequestMapping("/business/download")
public class DcFileDownloadController extends BaseController {

    @Autowired
    private IDcFileDownloadService dcFileDownloadService;
    @Autowired
    private ServerConfig serverConfig;
    /**
     * 默认大小 30M
     */
    public static final long DEFAULT_MAX_SIZE = 30 * 1024 * 1024;
    /**
     * 查询文件管理列表
     */
    //@PreAuthorize("@ss.hasPermi('business:download:list')")
    @GetMapping("/list")
    public TableDataInfo list(DcFileDownload dcFileDownload) {
        startPage();
        List<DcFileDownload> list = dcFileDownloadService.selectDcFileDownloadList(dcFileDownload);
        return getDataTable(list);
    }

    /**
     * 导出文件管理列表
     */
    //@PreAuthorize("@ss.hasPermi('business:download:export')")
    @Log(title = "文件管理", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    public void export(HttpServletResponse response, DcFileDownload dcFileDownload) {
        List<DcFileDownload> list = dcFileDownloadService.selectDcFileDownloadList(dcFileDownload);
        ExcelUtil<DcFileDownload> util = new ExcelUtil<>(DcFileDownload.class);
        util.exportExcel(response, list, UniversalEnum.FILE_MANAGEMENT_DATA.getValue());
    }

    /**
     * 获取文件管理详细信息
     */
  //  @PreAuthorize("@ss.hasPermi('business:download:query')")
    @GetMapping(value = "/{id}")
    public AjaxResult getInfo(@PathVariable("id") Long id) {
        return AjaxResult.success(dcFileDownloadService.selectDcFileDownloadById(id));
    }

    /**
     * 新增文件管理
     */
   //@PreAuthorize("@ss.hasPermi('business:download:add')")
    @Log(title = "文件管理", businessType = BusinessType.INSERT)
    @PostMapping
    public AjaxResult add(@RequestBody DcFileDownload dcFileDownload) {
        return toAjax(dcFileDownloadService.insertDcFileDownload(dcFileDownload));
    }

    /**
     * 修改文件管理
     */
    //@PreAuthorize("@ss.hasPermi('business:download:edit')")
    @Log(title = "文件管理", businessType = BusinessType.UPDATE)
    @PutMapping
    public AjaxResult edit(@RequestBody DcFileDownload dcFileDownload) {
        return toAjax(dcFileDownloadService.updateDcFileDownload(dcFileDownload));
    }

    /**
     * 删除文件管理
     */
    //@PreAuthorize("@ss.hasPermi('business:download:remove')")
    @Log(title = "文件管理", businessType = BusinessType.DELETE)
    @DeleteMapping("/{ids}")
    public AjaxResult remove(@PathVariable Long[] ids) {
        return toAjax(dcFileDownloadService.deleteDcFileDownloadByIds(ids));
    }
    /**
     * 文件管理-文件上传请求
     */
    @PostMapping("/uploadFileManagement")
    public AjaxResult uploadFileManagement(MultipartFile file) throws Exception
    {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getFileManagementPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            //文件后缀
            String extension = FileUploadUtils.getExtension(file);
            //文件大小，单位为B
            long size = file.getSize();
            //文件大小验证
            if (size > DEFAULT_MAX_SIZE)
            {
                throw new FileSizeLimitExceededException(DEFAULT_MAX_SIZE / 1024 / 1024);
            }
            String url = serverConfig.getUrl() + fileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", fileName);
            ajax.put("newFileName", FileUtils.getName(fileName));
            ajax.put("originalFilename", file.getOriginalFilename());
            ajax.put("extension", extension);
            ajax.put("size", size);
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }
    //下载请求接口-下载数量+1
    @GetMapping("/downloadIncrease/{id}")
    public AjaxResult downloadIncrease(@PathVariable Long id) {
        return toAjax(dcFileDownloadService.downloadIncrease(id));
    }

}