<%@ page import="com.apz.pirisale.*" %>
<jsp:useBean id="piriSale" scope="application" class="com.apz.pirisale.PiriSale" />
<%
    String mAction = request.getParameter("action");
    Object objCustomerBasket = session.getAttribute("basket");
    boolean mActive = (session.getAttribute("active") != null);
    if(!mActive)
    {
//        redirect to need login page
    }
    if(objCustomerBasket == null)
    {
        response.sendRedirect("error.jsp?errorText=Basket not initialised");
        return;
    }
    if(mAction == null)
    {
        response.sendRedirect("error.jsp?errorText=Missing parameter");
        return;
    }
    Basket customerBasket = (Basket)objCustomerBasket;
    if("addItem".equals(mAction))
    {
        String szItemID = request.getParameter("itemID");
        String szQuantity = request.getParameter("buyQuantity");
        if((szItemID == null) || (szQuantity == null))
        {
            response.sendRedirect("error.jsp?errorText=Missing parameter");
            return;
        }
        try
        {
            long itemID = Long.parseLong(szItemID);
            int quantity = Integer.parseInt(szQuantity);
            try
            {
                customerBasket.addItem(itemID, quantity);
            }
            catch(Exception e)
            {
                response.sendRedirect("error.jsp?errorText=" + e.toString());
                return;
            }
        }
        catch(NumberFormatException e)
        {
            response.sendRedirect("error.jsp?errorText=Parameter is not numeric");
            return;
        }
    }
    if("removeItem".equals(mAction))
    {
        String szItemIndex = request.getParameter("itemIndex");
        if (szItemIndex == null)
        {
            response.sendRedirect("error.jsp?errorText=Missing parameter");
            return;
        }
        try
        {
            int itemIndex = Integer.parseInt(szItemIndex);
            try
            {
                customerBasket.removeItem(itemIndex);
            }
            catch(Exception e)
            {
                response.sendRedirect("error.jsp?errorText=" + e.toString());
                return;
            }
        }
        catch(NumberFormatException e)
        {
            response.sendRedirect("error.jsp?errorText=Parameter is not numeric");
            return;
        }
    }
    response.sendRedirect("basket.jsp");
%>