using ClassLibrary1;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Windows.ApplicationModel.Background;
using Windows.Data.Xml.Dom;
using Windows.UI.Notifications;

namespace TileBackground
{   
  

    public sealed class TileBackgroundUpdater : IBackgroundTask
    {
        private TileUpdater tileUpdater;

        public async void Run(IBackgroundTaskInstance taskInstance) {
            BackgroundTaskDeferral deferral = taskInstance.GetDeferral();

            tileUpdater = TileUpdateManager.CreateTileUpdaterForApplication(); 
            tileUpdater.EnableNotificationQueue(true);
            

           await DataLoader.loadJson();
            
            int j=0;
            int i = 0;
            if (DataLoader.getSelectedChannels()[i].programs2Date.ContainsKey(DateTime.Now.Date))
            {
                while (j < 5)//5 tile al massimo. ognuno con 3 programmi
                {

                    List<Program> plist = new List<Program>();
                    int k = 0;
                    while (k < 3)
                    {
                        DataLoader.getSelectedChannels()[i].highlightNowProgram();
                        plist.Add(DataLoader.getSelectedChannels()[i].nowProgram);
                        k++;
                        i++;
                    }
                    notifyLiveTile(plist);
                    j++;
                }
            }
          
           deferral.Complete();
        }

        private void notifyLiveTile(List<Program> programs)
        {
           
            XmlDocument tileXml = TileUpdateManager.GetTemplateContent(TileTemplateType.TileWideText07);
            XmlDocument squareTileXml = TileUpdateManager.GetTemplateContent(TileTemplateType.TileSquareText02); 

            XmlNodeList tileTextAttributes = tileXml.GetElementsByTagName("text");
            XmlNodeList squareTileTextAttributes = squareTileXml.GetElementsByTagName("text");

            tileTextAttributes[0].InnerText = "Ora in onda";
            squareTileTextAttributes[0].InnerText = "In onda";
            squareTileTextAttributes[1].InnerText = programs[0].parent.name.ToUpper() + "  " + programs[0].title;
            
            int i=1;
            while(i<7){


                tileTextAttributes[i].InnerText = programs[i / 2].parent.name;
                tileTextAttributes[i+1].InnerText = programs[i / 2].title;
                i += 2;
            }
            IXmlNode squareNode = tileXml.ImportNode(squareTileXml.GetElementsByTagName("binding")[0],true);

            tileXml.GetElementsByTagName("visual")[0].AppendChild(squareNode);
        


            

            TileNotification tileNotification = new TileNotification(tileXml);
           
            tileNotification.ExpirationTime = DateTimeOffset.UtcNow.AddSeconds(600);
            tileUpdater.Update(tileNotification);

        }
    }
}