package org.zhios.website.admin.servlet;

import java.io.DataInputStream;
import java.io.IOException;

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.zhios.website.admin.model.SourceManager;
import org.zhios.website.admin.model.Strings;
import org.zhios.website.admin.model.UserManager;

/**
 * Servlet implementation class SourceManagerSL
 */
@WebServlet("/SourceManagerSL")
public class SourceManagerSL extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public SourceManagerSL() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setCharacterEncoding("UTF-8");

		//check user.
		if(!UserManager.checkUser(request.getSession(false))){
			response.sendRedirect("error?id=err104");
			return;
		}
		
		SourceManager sm=new SourceManager();
		
		String eventname=request.getParameter("eventname");
		if(eventname.equals("sourcelist")){
			String packagepath=request.getParameter("sourcename");
			
			String result=sm.ReadSourceList(packagepath);
			request.setAttribute("SourceList", result);
			
			SetParams(request);
			request.getRequestDispatcher("sourcemanager.jsp").forward(request,response);
		}
		else if(eventname.equals("upload")){
			String packagepath=request.getParameter("sourcename");

			DataInputStream in=null;
			int MAX_SIZE=1024000;
			
			String contentType = request.getContentType();
			try{
				if(contentType.indexOf("multipart/form-data") >= 0){

					in=new DataInputStream(request.getInputStream());
					int formDataLength=request.getContentLength();
					if(formDataLength<=MAX_SIZE){
						//Get all posted content.
						sm.UploadFileContent=new byte[formDataLength];
						int byteRead=0;
						int totalBytesRead=0;
						while(totalBytesRead<formDataLength){
							byteRead=in.read(sm.UploadFileContent,totalBytesRead,formDataLength);
							totalBytesRead+=byteRead;
						}
					}
					
					String boundary = contentType.substring(contentType.lastIndexOf("=") + 1,contentType.length());
					sm.UploadFile(packagepath,boundary);
				
					String result=sm.ReadSourceList(packagepath);
					request.setAttribute("SourceList", result);
					
					SetParams(request);
					request.getRequestDispatcher("sourcemanager.jsp").forward(request,response);
				}
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
		else if(eventname.equals("delete")){
			String packagepath=request.getParameter("sourcename");
			String deletefiles=request.getParameter("deletefiles");
			
			sm.DeleteFiles(packagepath,deletefiles);
			
			String result=sm.ReadSourceList(packagepath);
			request.setAttribute("SourceList", result);
			
			SetParams(request);
			request.getRequestDispatcher("sourcemanager.jsp").forward(request,response);
		}
		else{}
		
	}
	
	private void SetParams(HttpServletRequest request){
		request.setAttribute("title", Strings.SMTitle);
		request.setAttribute("uploadsrc", Strings.SMuploadSource);
		request.setAttribute("deletesrc", Strings.SMdeleteSource);
		request.setAttribute("deletesrcconf", Strings.SMdeleteSourceConfirm);
		request.setAttribute("failconf",Strings.FailConfirm);
	}
}