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;

public partial class Admin_EditContactForm : WebBlocks.AdministrativePage
{
    private string ReturnURL
    {
        get { return (string)ViewState["ReturnURL"]; }
        set { ViewState["ReturnURL"] = value; }
    }

    public int ContactFormID
    {
        get { return (int)ViewState["ContactFormID"]; }
        set { ViewState["ContactFormID"] = value; }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            if (Request.UrlReferrer != null)
                ReturnURL = Request.UrlReferrer.ToString();
            else
                ReturnURL = "ContactForms.aspx";

            if (Request["ContactFormID"] != null)
                ContactFormID = Int32.Parse(Request["ContactFormID"]);
            else
                throw new Exception("Creation of new contact forms is not supported.");

            BindData();
        }
    }

    private void BindData()
    {
        DataRow dr = Database.ContactForm_GetByContactFormID(ContactFormID);

        if (dr != null)
        {
            litBlockTitle.Text = (string)dr["BlockTitle"];
            txtSubject.Text = (string)dr["Subject"];
            txtFromName.Text = (string)dr["FromName"];
            txtFromAddress.Text = (string)dr["FromAddress"];
            txtRecipientAddresses.Text = (string)dr["RecipientAddresses"];
            txtThankYouMessage.Text = (string)dr["ThankYouMessage"];
        }
        else
            throw new Exception("No such contact form exists.");

        BindFields();
    }

    private void BindFields()
    {
        DataTable dt = Database.ContactFormFields_GetByContactFormID(ContactFormID);

        foreach (DataRow dr in dt.Rows)
        {
            if ((WebBlocks.ContactFormFieldType)dr["FieldType"] == WebBlocks.ContactFormFieldType.Separator)
            {
                dr["Label"] += " (Separator)";
            }
        }

        gvFields.DataSource = dt;
        gvFields.DataBind();
    }

    protected void btnCancel_Click(object sender, EventArgs e)
    {
        Response.Redirect("ContactForms.aspx");
    }

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        Database.ContactForm_Update(ContactFormID, txtSubject.Text, txtFromName.Text, txtFromAddress.Text, txtRecipientAddresses.Text, txtThankYouMessage.Text);

        Response.Redirect(ReturnURL);
    }

    protected void gvFields_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "del")
        {
            int RowIndex = Int32.Parse(e.CommandArgument.ToString());
            int ContactFormFieldID = (int)gvFields.DataKeys[RowIndex].Value;

            Database.ContactFormFields_Delete(ContactFormFieldID);

            BindFields();
        }
    }
}