/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import java.io.File;
import java.io.IOException;
import java.util.Vector;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.RequestDispatcher;
import model.MemberBean;
import model.ObjectPersistance;

/**
 *
 * @author mainr30
 */
public class WaterSportServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;
    //ObjectPersistance is the name of Darryl's class, ObjectManager is the name of the instance.
    ObjectPersistance<MemberBean> ObjectManager;

    @Override
    public void init() throws ServletException {
        String sep = File.separator;
        ObjectManager = new ObjectPersistance<MemberBean>("C:" + sep + "HNC" + sep + "TestStore", "Membership");
    }

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        //Initialize the variables used for navigation
        String page = request.getParameter("page");
        String url = "/add.jsp";
        String action = request.getParameter("action");

        //does page have a value?
        if (page == null) {
            response.sendRedirect("WaterSportServlet?page=add&action=");
        } //If page has a value, lets see what that value is
        else {
            //If it equals add run the code for the add page
            if (page.equals("add")) {
                if (action.equals("addMember")) {
                    url = "/index.jsp";
                    String title = request.getParameter("title");
                    String forename = request.getParameter("forename");
                    String surname = request.getParameter("surname");
                    String postcode = request.getParameter("postcode");
                    String email = request.getParameter("email");
                    int age = Integer.parseInt(request.getParameter("age"));
                    int membertype = Integer.parseInt(request.getParameter("membertype"));
                    int id = getId();

                    //Create a new instance of the bean
                    MemberBean b = new MemberBean(title, forename, surname, postcode, age, email, membertype, id);

                    //Pass the bean over to the ObjectManager (darryl's class)
                    ObjectManager.saveObject(b, id);
                    request.setAttribute("allMembers", ObjectManager.getAllObjects());
                    url = "/view.jsp";
                } else {
                    url = "/index.jsp";
                }
            } //if it equals view then goto view
            else if (page.equals("view")) {
                url = "/view.jsp";
                Vector allMembers = ObjectManager.getAllObjects();
                request.setAttribute("allMembers", allMembers);

                if (action.equals("Delete")) {
                    int id = Integer.parseInt(request.getParameter("memberid"));
                    String username = request.getParameter("username");
                    String password = request.getParameter("password");

                    if (username.equals("admin") && password.equals("password")) {
                        ObjectManager.deleteObject(id);
                        url = "/view.jsp";
                    }
                }

                else if (action.equals("Edit")) {

                    int id = Integer.parseInt(request.getParameter("memberid"));

                    Vector<MemberBean> memberList = ObjectManager.getAllObjects();

                    for (MemberBean b : memberList) {
                        if (id == b.getId()) {
                            request.setAttribute("member", b);
                        }
                    }
                }
            } //If it doesnt match any of the above, go back to the add page.
            else {
                url = "/index.jsp";
            }

            //Make the actual request
            RequestDispatcher dispatcher =
                    getServletContext().getRequestDispatcher(url);
            dispatcher.forward(request, response);
        }
    }

    //Generate an ID
    private int getId() throws IOException {
        Vector<Integer> ids = new Vector<Integer>();
        for (MemberBean b : ObjectManager.getAllObjects()) {
            ids.add(b.getId());
        }
        for (int i = 1; i < Integer.MAX_VALUE; i++) {
            if (!ids.contains(i)) {
                return (i);
            }
        }
        throw new IndexOutOfBoundsException("Ran out of numbers");
    }

    // <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>
}