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_EditCategory : WebBlocks.AdministrativePage
{
    public int CategoryID
    {
        get { return (ViewState["CategoryID"] == null ? 0 : (int)ViewState["CategoryID"]); }
        set { ViewState["CategoryID"] = value; }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            if (Request["CategoryID"] != null)
                CategoryID = Int32.Parse(Request["CategoryID"]);

            if (Request["ParentCategoryID"] != null)
                ddlParentCategory.SelectedValue = Request["ParentCategoryID"];

            btnDelete.Visible = (CategoryID > 0);

            BindParentCategories();

            if (CategoryID > 0)
                BindData();
        }
    }

    private void BindParentCategories()
    {
        DataTable dt = Database.Categories_GetAll();
        ddlParentCategory.DataSource = dt;
        ddlParentCategory.DataBind();

        ddlParentCategory.Items.Insert(0, new ListItem("None", "0"));
    }

    private void BindData()
    {
        DataRow dr = Database.Categories_Get(CategoryID);

        litCategoryID.Text = dr["CategoryID"].ToString();
        txtCategoryName.Text = (string)dr["CategoryName"];
        ddlParentCategory.SelectedValue = dr["ParentCategoryID"].ToString();
        chkUseCategoryLanding.Checked = (bool)dr["UseCategoryLanding"];
    }

    protected void btnCancelAddItem_Click(object sender, EventArgs e)
    {
        Response.Redirect("StorePages.aspx?CategoryID=" + CategoryID);
    }

    protected void btnAddItem_Click(object sender, EventArgs e)
    {
        // figure out the canonical name
        int ParentCategoryID = Int32.Parse(ddlParentCategory.SelectedValue);
        string CanonicalName = txtCategoryName.Text;

        if (ParentCategoryID > 0)
        {
            DataRow dr = Database.Categories_Get(ParentCategoryID);
            CanonicalName = (string)dr["CanonicalName"] + ":" + CanonicalName;
        }


        if (CategoryID == 0)
            CategoryID = Database.Categories_Add(ParentCategoryID, txtCategoryName.Text, chkUseCategoryLanding.Checked, CanonicalName);
        else
            Database.Categories_Update(CategoryID, ParentCategoryID, txtCategoryName.Text, chkUseCategoryLanding.Checked, CanonicalName);

        Database.System_RebuildProductCounts();

        Response.Redirect("StorePages.aspx?CategoryID=" + CategoryID.ToString());
    }

    protected void btnDelete_Click(object sender, EventArgs e)
    {
        // for future reference
        DataRow dr = Database.Categories_Get(CategoryID);
        int ParentCategoryID = (int)dr["ParentCategoryID"];

        Database.CategorySelectorMap_DeleteByCategory(CategoryID);
        Database.Categories_Delete(CategoryID);

        Response.Redirect("StorePages.aspx?CategoryID=" + ParentCategoryID);
    }
}