using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Phone.Shell;

namespace Juick.Classes
{
    static class TileHelper
    {
        public static void UpdateFlipTile(
            string title,
            string backTitle,
            string backContent,
            string wideBackContent,
            int? count,
            string smallBackgroundImageStringUri,
            string backgroundImageStringUri,
            string backBackgroundImageStringUri,
            string wideBackgroundImageStringUri,
            string wideBackBackgroundImageStringUri)
        {
            if (!CanUseLiveTiles)
            {
                return;
            }
            var smallBackgroundImage = CreateRelativeUri(smallBackgroundImageStringUri);
            var backgroundImage = CreateRelativeUri(backgroundImageStringUri);
            var backBackgroundImage = CreateRelativeUri(backBackgroundImageStringUri);
            var wideBackgroundImage = CreateRelativeUri(wideBackgroundImageStringUri);
            var wideBackBackgroundImage = CreateRelativeUri(wideBackBackgroundImageStringUri);

            Type flipTileDataType = Type.GetType("Microsoft.Phone.Shell.FlipTileData, Microsoft.Phone");

            // Get the ShellTile type so we can call the new version of "Update" that takes the new Tile templates.
            Type shellTileType = Type.GetType("Microsoft.Phone.Shell.ShellTile, Microsoft.Phone");

            // Loop through any existing Tiles that are pinned to Start.
            foreach (var tileToUpdate in ShellTile.ActiveTiles)
            {
                var UpdateTileData = flipTileDataType.GetConstructor(new Type[] { }).Invoke(null);

                // Set the properties. 
                SetProperty(UpdateTileData, "Title", title);
                SetProperty(UpdateTileData, "Count", count);
                SetProperty(UpdateTileData, "BackTitle", backTitle);
                SetProperty(UpdateTileData, "BackContent", backContent);
                SetProperty(UpdateTileData, "SmallBackgroundImage", smallBackgroundImage);
                SetProperty(UpdateTileData, "BackgroundImage", backgroundImage);
                SetProperty(UpdateTileData, "BackBackgroundImage", backBackgroundImage);
                SetProperty(UpdateTileData, "WideBackgroundImage", wideBackgroundImage);
                SetProperty(UpdateTileData, "WideBackBackgroundImage", wideBackBackgroundImage);
                SetProperty(UpdateTileData, "WideBackContent", wideBackContent);

                // Invoke the new version of ShellTile.Update.
                shellTileType.GetMethod("Update").Invoke(tileToUpdate, new Object[] { UpdateTileData });
            }
        }

        static Uri CreateRelativeUri(string uriString)
        {
            return !string.IsNullOrEmpty(uriString) ? new Uri(uriString, UriKind.Relative) : null;
        }

        static void SetProperty(object instance, string name, object value)
        {
            var setMethod = instance.GetType().GetProperty(name).GetSetMethod();
            setMethod.Invoke(instance, new object[] { value });
        }

        static readonly Version targetedVersion78 = new Version(7, 10, 8858);

        static bool CanUseLiveTiles
        {
            get { return Environment.OSVersion.Version >= targetedVersion78; }
        }
    }
}