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package nl.fontys.pro.web;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


/**
 *
 * @author ÄktschnDan
 */
public class ProcessLogin extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */

    boolean regflag=false;

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

        try{
             if(request.getParameter("register").equals("1")){
                regflag=true;
             }
            }
             catch(Exception e){
             regflag=false;
             }


        try {


            LoginData database= LoginData.getInstance();

            //
            //database.addAccount("testuser","test");
            //

            String user=request.getParameter("username");
            String password=request.getParameter("password");

                if(regflag){

                database.addAccount(user, password);
                //out.println("<h1>thanks, your account has been activated<h1>");
                //out.println("<a href=\"login.html\"> back to login page</a>");

                printLoginPage(out,"<h1>thanks, your account has been activated</h1>",user,password);
            }
                else{

                switch(database.checkLogin(user, password)){
                case PASSED : //out.println("<h1> hello Mr. "+ user +", your password "+ password +" will now be broadcasted :-)");
                              //out.println("<br> <a href=\"login.html\"> your application</a>");
                              //out.println("<br> <a href=\"login.html\"> back to login page</a>");break;
                                printLoginPage(out,"<h1> hello Mr. "+ user +", your password "+ password +" will now be broadcasted :-)</h1>",user,password);break;
                case WRONGPWD : //out.println("<h1> hello Mr. "+ user +", your password is incorrect. Try again.</h1>");break;
                                printLoginPage(out,"<h1> hello Mr. "+ user +", your password is incorrect. Try again.</h1>",user,password);break;
                case NOACCOUNT : //out.println("<h1> there is no such account!</h1>");break;
                                printLoginPage(out,"<h1> there is no such account!</h1>",user,password);break;
                case EMPTY : //out.println("<h1>please fill in the blanks</h1>");break;
                                printLoginPage(out,"<h1>please fill in the blanks</h1>",user,password);break;
            }
                }


        } finally {
            out.close();
        }
    }

    private void printLoginPage(PrintWriter out,String message, String user, String pwd){
        out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"><html><head><title></title><meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"></head><body><table border=\"0\" width=\"1024\"><tr><td><img src=\"img/fontys_logo.jpg\" align=\"top\" alt=\"Fontys,junge\"></td><td align=\"center\"><h1>The Fontys Portal, boy </h1> </td> </tr></table><hr><table border=\"0\" width=\"1024\"><tr><td>&nbsp</td></tr><tr><td><form action=\"ProcessLogin\">"+ message+"<br> Login: <input name=\"username\" type=\"text\"  maxlength=\"30\" value=\""+ user +"\"> <br>Password: <input name=\"password\" type=\"text\"  maxlength=\"30\" value=\""+pwd+"\"> <br>&nbsp <br><input type=\"submit\" name=\"submitButton\" value=\"login\"></form></td></tr></table>&nbsp <br>new to Fontys Portal? &nbsp;&nbsp <a href=\"register.html\"> >> get yourself an Account</a><hr>&nbsp <br>Design by Me</body></html>");
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}