package common;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.FileUtils;

import brd.BoardService;

/**
 * Servlet implementation class FileDownloadController
 */
@WebServlet("/download.do")
public class FileDownloadController extends HttpServlet {
	private static final long serialVersionUID = 1L;
	private static String ARTICLE_IMAGE_REPO = File.separator +"dir";

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doHandle(request,response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doHandle(request,response);
	}
	
	private void doHandle(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException{
		request.setCharacterEncoding("UTF-8");
		response.setContentType("text/html;charset=utf-8");
		if(request.getParameter("FileName")==null) {
			System.out.println("FileName = "+request.getParameter("FileName"));
			return;
		}
		String fileName = request.getParameter("FileName");
		String articleNO = request.getParameter("articleNO");
		System.out.println("3 FileName="+fileName);
		System.out.println("FILEDOWNLOAD articleNO = "+articleNO);
		BoardService boardservice = new BoardService();
		
		OutputStream out = response.getOutputStream();
		String path = ARTICLE_IMAGE_REPO + File.separator  + articleNO + File.separator  + fileName;
		File File_n = new File(path);
		if(!File_n.exists()) {
			boardservice.intoserver(articleNO, fileName);
		}

		System.out.println("filedownload 111111111111111111111111111111111");
		response.setHeader("Cache-Control", "no-cache");
		response.addHeader("Content-disposition", "attachment; fileName="+fileName);
		FileInputStream in = new FileInputStream(File_n);
		byte[] buffer = new byte[1024*8];
		while(true) {
			int count = in.read(buffer);
			if(count == -1)
				break;
			out.write(buffer,0,count);
		}

		in.close();
		out.close();
	}

}
