package com.shlanbao.tzsc.utils.tools;

import java.io.File;
import java.io.IOException;
import java.net.URLEncoder;
import java.util.*;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;


import com.alibaba.fastjson.JSON;
/**
 *
 * @author liuligong
 * @create 2014-8-14下午07:03:44
 * @return
 */
public class UploadServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
	String uploadPath;
	//String OpenOffice_HOME=""; //openOffice软件安装目录
	String upload_pdf="";
	private static final ResourceBundle bundle = ResourceBundle.getBundle("config");

	public UploadServlet() {
		super();
	}

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doPost(request, response);
	}

	/**
	 * [功能说明]:pms文档管理-上传
	 * @author wanchanghuang
	 * @createTime 2016年6月6日16:57:51
	 * */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		response.setCharacterEncoding("UTF-8");
		String urlname = null;
		FileItem item = null;

		String oldfileName="";//原有文件名
		String fileUrl = "";
		//BufferedOutputStream outputStream = null;
		Map<String, Object> m = new HashMap<String, Object>();

		m.put("status",false);
		if (ServletFileUpload.isMultipartContent(request)) {
			try {
				DiskFileItemFactory factory = new DiskFileItemFactory();
				//factory.setSizeThreshold(1024);
				// factory.setRepository(new File(repositoryPath));// 设置临时目录
				ServletFileUpload upload = new ServletFileUpload(factory);
				upload.setHeaderEncoding("UTF-8");
				upload.setFileSizeMax(50*1024*1024);
				upload.setSizeMax(50 * 1024 * 1024);// 设置附件最大大小，超过这个大小上传会失败
				List<FileItem> items = upload.parseRequest(request);


				for (FileItem fi : items) {
					if(fi.getName()!=null){
						item = fi;
					}else{
						urlname = fi.getString();
					}
				}
				if (item!=null){
					oldfileName = item.getName();
					urlname = urlname==null?oldfileName:urlname;
					String uuid = UUID.randomUUID().toString();
					String suffix = oldfileName.substring(oldfileName.lastIndexOf("."));
					File dir  = new File(uploadPath);
					if(!dir.exists() && !dir.isDirectory()){
						dir.mkdirs();
					}

					File savedFile = new File(dir, urlname);

					item.write(savedFile);

					// 加入filePreview转换队列 ，后台进行转换
					List<HTTPParam> list = new ArrayList<>();
					fileUrl = uploadPath.substring(uploadPath.indexOf(":")+1)+"/"+ urlname;
					HTTPParam fileDir = new HTTPParam("url", bundle.getString("service_url")+fileUrl);
					list.add(fileDir);
					try {
						String rUrl = bundle.getString("file_preview_url");
						rUrl+="/addTask";
						URLEncoder.encode(rUrl,"utf-8");
						HTTPSend.sendGet(rUrl, list);

					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}

				}


				//将office文件转换成PDF文件
			//	Offic2PDFUtil.office2PDF(uploadPath+"/"+oldfileName, upload_pdf+"/"+newfileName,OpenOffice_HOME);
				m.put("status", true);
				m.put("fileUrl", fileUrl );
				response.getWriter().write(JSON.toJSONString(m));

			} catch (FileUploadException e) {
				e.printStackTrace();
				m.put("status", false);
				response.getWriter().write(JSON.toJSONString(m));
			} catch (Exception e) {
				e.printStackTrace();
				m.put("status", false);
				response.getWriter().write(JSON.toJSONString(m));

			}
		}
	}


	/***
	 * [功能说明]：将office文件保存为-pdf文件
	 * @author wanchanghuang
	 * @createTime 2016年6月6日17:01:13
	 * */

	@Override
	public void init(ServletConfig config) throws ServletException {
		// repositoryPath = FileUtils.getTempDirectoryPath();
		uploadPath =bundle.getString("save_url")+ bundle.getString("upload");
		upload_pdf=bundle.getString("save_url")+ bundle.getString("upload_pdf");
		//OpenOffice_HOME=bundle.getString("OpenOffice_HOME");
		File up = new File(uploadPath);
		if (!up.exists()) {
			up.mkdir();
		}
	}

}