using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using Klas.Business.Controllers;
using Klas.Business.Interfaces;
using Ninject;
using Klas.Toolbox;
using Klas.DataAccess;
using Ninject.Web;
using Klas.DataAccess.Interfaces;

namespace ToolBox.Modules.WebsiteStatistics
{
    /// <summary>
    /// The code behind for the vendor brief management page.
    /// </summary>
    public partial class ManageVendorBriefs : PageBase
    {
        #region -= PROPERTIES =-

        /// <summary>
        /// Vendor brief manager requires an instance of IVendorBriefController.
        /// </summary>
        [Inject]
        public IVendorBriefController VendorBriefController
        {
            get { return _vendorBriefController; }
            set { _vendorBriefController = value; }
        }

        /// <summary>
        /// The private instance of vendor brief controller to be used within the class.
        /// </summary>
        private IVendorBriefController _vendorBriefController;

        #endregion

        #region -= EVENTS =-

        /// <summary>
        /// Load vendor brief filters and populate vendor brief grid.
        /// </summary>
        protected void Page_Load(object sender, EventArgs e)
        {
            Master.CurrentModule = KLASToolbox.Enum.ToolboxModules.Web_Stats;
            MessageDisplay.Visible = false;
            if (!this.IsPostBack)
            {
                ddlStatus.DataSource = _vendorBriefController.GetFilters();
                ddlStatus.DataBind();
                populateVendorBriefs();
                if (Session["TempData"] != null)
                {
                    MessageDisplay.Visible = true;
                    MessageDisplay.InnerText = Session["TempData"].ToString();
                    Session["TempData"] = null;
                    string javaScript = "<script type=\"text/javascript\">$(function () { $('#ctl00_BodyRight_MessageDisplay').effect('highlight', {}, 3000).slideUp(); });</script>";
                    ClientScript.RegisterStartupScript(this.GetType(), "FadeOutMessage", javaScript);
                }
            }
        }

        /// <summary>
        /// Repopulate the vendor brief grid everytime a filter is selected.
        /// </summary>
        protected void ddlVendorBriefs_SelectedIndexChanged(object sender, EventArgs e)
        {
            populateVendorBriefs();
        }

        /// <summary>
        /// Fill form with data to be edited when the user selects a vendor brief.
        /// </summary>
        protected void gvVendorBriefs_SelectedIndexChanged(object sender, EventArgs e)
        {
            AddEditVendorBrief.Title = "Edit Vendor Brief";
            btnSubmit.Text = "Edit Vendor Brief";
            btnCancel.Visible = true;
            cbxDeleteVendorBrief.Visible = true;

            int vendorBriefID = Convert.ToInt32(gvVendorBriefs.SelectedRow.Cells[1].Text);
            VendorBrief vendorBrief = _vendorBriefController.GetVendorBrief(vendorBriefID);
            cbxActive.Checked = vendorBrief.IsActive;
            tbxTitle.Text = vendorBrief.Title;
            tbxLinkText.Text = vendorBrief.LinkText;
            lblURL.Text = "http://www.KLASresearch.com/briefs/" + vendorBrief.VendorBriefID.ToString();
        }

        /// <summary>
        /// Disabled form fields if the entity is about to be deleted as denoted by the check box being checked.
        /// </summary>
        protected void cbxDeleteVendorBrief_CheckedChanged(object sender, EventArgs e)
        {
            if (cbxDeleteVendorBrief.Checked)
            {
                tbxTitle.Enabled = false;
                tbxLinkText.Enabled = false;
                cbxActive.Enabled = false;
                fuVendorBrief.Enabled = false;
                btnSubmit.Text = "Delete Vendor Brief";
            }
            else
            {
                tbxTitle.Enabled = true;
                tbxLinkText.Enabled = true;
                cbxActive.Enabled = true;
                fuVendorBrief.Enabled = true;
                btnSubmit.Text = "Edit Vendor Brief";
            }
        }

        /// <summary>
        /// Cancel editing mode and return to new entity mode. (i.e. reload the page)
        /// </summary>
        protected void btnCancel_Click(object sender, EventArgs e)
        {
            Response.Redirect(Request.Url.AbsoluteUri);
        }

        /// <summary>
        /// Custom validtor for vendor brief file upload control.
        /// </summary>
        protected void cvVendorBriefFile_ServerValidate(object source, ServerValidateEventArgs args)
        {
            CustomValidator fileUploadValidator = (CustomValidator)source;
            FileUpload vendorBriefFileUpload = (FileUpload)fileUploadValidator.Parent.FindControl(fileUploadValidator.ControlToValidate);
            args.IsValid = vendorBriefFileUpload.HasFile && vendorBriefFileUpload.FileName.ToLower().EndsWith(".pdf");
        }

        /// <summary>
        /// Check status of form and determine if the entity is to be added, edited, or deleted and call the appropriate method on the controller.
        /// </summary>
        protected void btnSubmit_Click(object sender, EventArgs e)
        {
            if (gvVendorBriefs.SelectedRow == null)
            {
                #region -= ADD VENDOR BRIEF =-
                if (IsValid)
                {
                    try
                    {
                        VendorBrief vendorBrief = new VendorBrief
                        {
                            IsActive = cbxActive.Checked,
                            DisplayOrder = 0,
                            Title = tbxTitle.Text,
                            LinkText = tbxLinkText.Text
                        };
                        _vendorBriefController.AddVendorBrief(vendorBrief);
                        fuVendorBrief.SaveAs(Server.MapPath("~/Content/PDF/VendorBriefs/" + vendorBrief.VendorBriefID.ToString() + ".pdf"));
                        Session["TempData"] = "Vendor Brief Added Successfully";
                    }
                    catch (Exception ex)
                    {
                        Session["TempData"] = ex.Message;
                    }
                    Response.Redirect(Request.Url.AbsoluteUri);
                }
                #endregion
            }
            else
            {
                int vendorBriefID = Convert.ToInt32(gvVendorBriefs.SelectedRow.Cells[1].Text);
                VendorBrief vendorBrief = _vendorBriefController.GetVendorBrief(vendorBriefID);
                if (!cbxDeleteVendorBrief.Checked)
                {
                    #region -= UPDATE VENDOR BRIEF =-
                    if (IsValid)
                    {
                        try
                        {
                            vendorBrief.IsActive = cbxActive.Checked;
                            vendorBrief.DisplayOrder = 0;
                            vendorBrief.Title = tbxTitle.Text;
                            vendorBrief.LinkText = tbxLinkText.Text;
                            _vendorBriefController.EditVendorBrief(vendorBrief);
                            Session["TempData"] = "Vendor Brief Updated Successfully";
                        }
                        catch (Exception ex)
                        {
                            Session["TempData"] = ex.Message;
                        }
                        Response.Redirect(Request.Url.AbsoluteUri);
                    }
                    #endregion
                }
                else
                {
                    #region -= DELETE VENDOR BRIEF =-
                    try
                    {
                        _vendorBriefController.DeleteVendorBrief(vendorBrief);
                        Session["TempData"] = "Vendor Brief Deleted Successfully";
                    }
                    catch (Exception ex)
                    {
                        Session["TempData"] = ex.Message;
                    }
                    Response.Redirect(Request.Url.AbsoluteUri);
                    #endregion
                }
            }
        }

        #endregion

        #region -= METHODS =-

        /// <summary>
        /// Bind grid view to dynamic data source, results determined by controller.
        /// </summary>
        private void populateVendorBriefs()
        {
            gvVendorBriefs.SelectedIndex = -1;
            gvVendorBriefs.AutoGenerateSelectButton = true;
            gvVendorBriefs.DataSource = VendorBriefController.GetVendorBriefList(ddlStatus.SelectedValue);
            gvVendorBriefs.DataBind();
        }

        #endregion
    }
}