using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;

public partial class ShippingOptions : WebBlockPage
{
    private OrderInfo OrderInfo
    {
        get
        {
            if (Session["OrderInfo"] == null)
                Session["OrderInfo"] = new OrderInfo();
            return (OrderInfo)Session["OrderInfo"];
        }
    }

    private List<ShippingMethod> ShippingMethods
    {
        get { return (List<ShippingMethod>)ViewState["ShippingMethods"]; }
        set { ViewState["ShippingMethods"] = value; }
    }

    protected override void OnInit(EventArgs e)
    {
        if (ShoppingCart.GrandTotal == 0)
            Response.Redirect("Cart.aspx");

        SecurePage = true;
        base.OnInit(e);
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            BindData();
        }
    }

    private void BindData()
    {
        decimal FreeShippingAmount = Decimal.Parse(Configuration.Get("Shipping.FreeShippingAmount"));
        decimal HandlingFee = Decimal.Parse(Configuration.Get("Shipping.HandlingFee"));

        ShippingBase sb = ShippingBase.GetShippingObject(Configuration.Get("Shipping.Method"));
        List<ShippingMethod> methods = sb.GetShippingMethods( Configuration.Get("Shipping.SourceZip"),
                                                              ShoppingCart.Zipcode);

        // adjust methods for handling charge
        foreach (ShippingMethod sm in methods)
            sm.Cost += HandlingFee;

        // add a "free shipping" item, if they have qualified for it
        if (ShoppingCart.IsFreeShipping || ShoppingCart.DiscountedTotal > FreeShippingAmount)
            methods.Insert(0, new ShippingMethod("Free Shipping", 0));

        for (int i = 0; i < methods.Count; i++)
        {
            ListItem li = new ListItem(methods[i].ToString(), i.ToString());
            if (ShoppingCart.ShippingName.Equals(methods[i].Name))
                li.Selected = true;
            rblShippingOptions.Items.Add(li);
        }

        rblShippingOptions.SelectedIndex = 0;
        ShippingMethods = methods;
    }

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        Page.Validate();
        if (Page.IsValid)
        {
            int idx = Int32.Parse(rblShippingOptions.SelectedValue);
            ShoppingCart.ShippingName = ShippingMethods[idx].Name;
            ShoppingCart.ShippingCost = ShippingMethods[idx].Cost;
            Response.Redirect("Checkout.aspx");
        }
    }
}