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.Net.Mail;
using System.Text;

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

    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)
        {
            Session["OrderID"] = null;
            Session["BillingAddressID"] = null;

            Utilities.PopulateStateList(ddlBillState);
            Utilities.PopulateCountryList(ddlBillCountry);
            ddlBillCountry.SelectedValue = "USA";

            // set payment types
            string []paytypes = Configuration.Get("Payment.AllowedPaymentTypes").Split(',');
            foreach (string s in paytypes)
            {
                switch (s)
                {
                    case "Credit Card":
                        Payment1.ShowCreditCardForm = true;
                        break;
                    case "PO Number":
                        Payment1.ShowPurchaseOrderForm = true;
                        break;
                    default:
                        break;
                }
            }
            
            if (CustomerInfo != null)
            {
                LoadCustomerData();
            }
        }
    }

    private void LoadCustomerData()
    {
        // LOAD BILLING
        ddlUseExistingBilling.Items.Clear();

        DataTable dt = Database.Addresses_GetByCustomerID(CustomerInfo.CustomerID, true);

        if (dt.Rows.Count > 0)
        {
            ddlUseExistingBilling.Items.Add(new ListItem("Use a New Billing Address", ""));

            foreach (DataRow dr in dt.Rows)
            {
                string AddressSnippet = (string)dr["Address"] + ", " + (string)dr["City"] + ", " + (string)dr["State"] + ", " + (string)dr["ZipCode"];
                AddressSnippet = AddressSnippet.Substring(0, Math.Min(40, AddressSnippet.Length)) + "...";
                ddlUseExistingBilling.Items.Add(new ListItem(AddressSnippet, dr["AddressID"].ToString()));
            }
        }

        if (OrderInfo.BillingAddressID > 0)
        {
            DataRow dr = Database.Addresses_GetByAddressID(OrderInfo.BillingAddressID);
            txtBillFirstName.Text = (string)dr["FirstName"];
            txtBillLastName.Text = (string)dr["LastName"];
            txtBillAddress.Text = (string)dr["Address"];
            txtBillCity.Text = (string)dr["City"];
            ddlBillState.SelectedValue = (string)dr["State"];
            ddlBillCountry.SelectedValue = (string)dr["Country"];
            txtBillZipCode.Text = (string)dr["ZipCode"];
            txtBillPhone.Text = (string)dr["Phone"];
        }
        else
        {
            // pre-load if there is only one existing address
            if (ddlUseExistingBilling.Items.Count == 2)
            {
                ddlUseExistingBilling.SelectedValue = ddlUseExistingBilling.Items[1].Value;
                ddlUseExistingBilling_SelectedIndexChanged(null, null);
            }
        }
    }

    void Login1_SuccessfulLogin(object sender, EventArgs e)
    {
        LoadCustomerData();
    }

    protected void ddlUseExistingBilling_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (ddlUseExistingBilling.SelectedValue == "")
        {
            txtBillFirstName.Text = "";
            txtBillLastName.Text = "";
            txtBillAddress.Text = "";
            txtBillCity.Text = "";
            ddlBillState.SelectedValue = "";
            ddlBillCountry.SelectedValue = "USA";
            txtBillZipCode.Text = "";
            txtBillPhone.Text = "";

            txtBillFirstName.Enabled = true;
            txtBillLastName.Enabled = true;
            txtBillAddress.Enabled = true;
            txtBillCity.Enabled = true;
            ddlBillState.Enabled = true;
            ddlBillCountry.Enabled = true;
            txtBillZipCode.Enabled = true;
            txtBillPhone.Enabled = true;
        }
        else
        {
            DataRow dr = Database.Addresses_GetByAddressID(Int32.Parse(ddlUseExistingBilling.SelectedValue));

            txtBillFirstName.Text = (string)dr["FirstName"];
            txtBillLastName.Text = (string)dr["LastName"];
            txtBillAddress.Text = (string)dr["Address"];
            txtBillCity.Text = (string)dr["City"];
            ddlBillState.SelectedValue = (string)dr["State"];
            ddlBillCountry.SelectedValue = (string)dr["Country"];
            txtBillZipCode.Text = (string)dr["ZipCode"];
            txtBillPhone.Text = (string)dr["Phone"];

            chkSameAsShipping.Checked = false;
            txtBillFirstName.Enabled = false;
            txtBillLastName.Enabled = false;
            txtBillAddress.Enabled = false;
            txtBillCity.Enabled = false;
            ddlBillState.Enabled = false;
            ddlBillCountry.Enabled = false;
            txtBillZipCode.Enabled = false;
            txtBillPhone.Enabled = false;
        }
    }

    protected void chkSameAsShipping_CheckedChanged(object sender, EventArgs e)
    {
        txtBillFirstName.Enabled = true;
        txtBillLastName.Enabled = true;
        txtBillAddress.Enabled = true;
        txtBillCity.Enabled = true;
        ddlBillState.Enabled = true;
        ddlBillCountry.Enabled = true;
        txtBillZipCode.Enabled = true;
        txtBillPhone.Enabled = true;

        if (chkSameAsShipping.Checked)
        {
            DataRow dr = Database.Addresses_GetByAddressID(OrderInfo.ShippingAddressID);

            txtBillFirstName.Text = (string)dr["FirstName"];
            txtBillLastName.Text = (string)dr["LastName"];
            txtBillAddress.Text = (string)dr["Address"];
            txtBillCity.Text = (string)dr["City"];
            ddlBillState.SelectedValue = (string)dr["State"];
            ddlBillCountry.SelectedValue = (string)dr["Country"];
            txtBillZipCode.Text = (string)dr["ZipCode"];
            
            if (ddlUseExistingBilling.Visible && ddlUseExistingBilling.Items.Count > 0)
                ddlUseExistingBilling.SelectedValue = "";
        }
    }

    protected void btnSubmit_Click(object sender, ImageClickEventArgs e)
    {
        Page.Validate("valCheckout");
        if (Page.IsValid)
        {
            #region billing address management
            if (ddlUseExistingBilling.SelectedValue != "")
                OrderInfo.BillingAddressID = Int32.Parse(ddlUseExistingBilling.SelectedValue);
            else  if (OrderInfo.BillingAddressID > 0)
            {
                Database.Addresses_Update(OrderInfo.BillingAddressID,
                                          CustomerInfo.CustomerID,
                                          true,
                                          txtBillFirstName.Text,
                                          txtBillLastName.Text,
                                          txtBillAddress.Text,
                                          txtBillCity.Text,
                                          ddlBillState.SelectedValue,
                                          ddlBillCountry.SelectedValue,
                                          txtBillZipCode.Text,
                                          txtBillPhone.Text,
                                          "");
            }
            else
            {
                // add a new one
                OrderInfo.BillingAddressID = Database.Addresses_Add(CustomerInfo.CustomerID, true, txtBillFirstName.Text, txtBillLastName.Text, txtBillAddress.Text, txtBillCity.Text, ddlBillState.SelectedValue, ddlBillCountry.SelectedValue, txtBillZipCode.Text, txtBillPhone.Text, "");
            }
            #endregion

            // save payment information
            Payment1.SavePaymentInformation();

            // check if user wants to sign up for mailing list
            if(chkMailingList.Checked)
            {
                ConstantContact cc = new ConstantContact();
                cc.AddContact(3, CustomerInfo.EmailAddress, txtBillFirstName.Text, txtBillLastName.Text, txtBillAddress.Text, "", txtBillCity.Text, ddlBillState.SelectedValue, ddlBillState.SelectedItem.Text, txtBillZipCode.Text, txtBillPhone.Text, "");
            }

            // move onto the confirmation page
            Response.Redirect("ConfirmOrder.aspx");
        }
    }
}