Implemented update check

Artemis/Artemis/Artemis.csproj

@@ -325,6 +325,7 @@
     <Compile Include="Utilities\Keyboard\Key.cs" />
     <Compile Include="Utilities\Keyboard\KeyboardRectangle.cs" />
     <Compile Include="Utilities\ShellLink.cs" />
+    <Compile Include="Utilities\Updater.cs" />
     <Compile Include="ViewModels\Abstract\EffectViewModel.cs" />
     <Compile Include="ViewModels\EffectsViewModel.cs" />
     <Compile Include="Modules\Effects\AudioVisualizer\AudioVisualizerViewModel.cs" />

Artemis/Artemis/Modules/Games/RocketLeague/RocketLeagueModel.cs

@@ -56,7 +56,7 @@ namespace Artemis.Modules.Games.RocketLeague
                 ColorHelpers.ToDrawingColor(Settings.SecondaryColor)
             }, LinearGradientMode.Horizontal);
 
-            MemoryHelpers.GetPointers();
+            Updater.GetPointers();
             _pointer = JsonConvert.DeserializeObject<GamePointersCollectionModel>(Offsets.Default.RocketLeague);
 
             var tempProcess = MemoryHelpers.GetProcessIfRunning(ProcessName);

Artemis/Artemis/Modules/Games/RocketLeague/RocketLeagueViewModel.cs

@@ -1,6 +1,7 @@
 using Artemis.Managers;
 using Artemis.Models;
 using Artemis.Settings;
+using Artemis.Utilities;
 using Artemis.Utilities.Memory;
 using Caliburn.Micro;
 using Newtonsoft.Json;
@@ -62,7 +63,7 @@ namespace Artemis.Modules.Games.RocketLeague
                 return;
             }
 
-            MemoryHelpers.GetPointers();
+            Updater.GetPointers();
             var version = JsonConvert
                 .DeserializeObject<GamePointersCollectionModel>(Offsets.Default.RocketLeague)
                 .GameVersion;

Artemis/Artemis/Utilities/Memory/MemoryHelpers.cs

@@ -43,35 +43,5 @@ namespace Artemis.Utilities.Memory
             }
             return address;
         }
-
-        public static void GetPointers()
-        {
-            if (!General.Default.EnablePointersUpdate)
-                return;
-
-            try
-            {
-                var jsonClient = new WebClient();
-                // Random number to get around cache issues
-                var rand = new Random(DateTime.Now.Millisecond);
-                var json =
-                    jsonClient.DownloadString(
-                        "https://raw.githubusercontent.com/SpoinkyNL/Artemis/master/pointers.json?random=" + rand.Next());
-
-                // Get a list of pointers
-                var pointers = JsonConvert.DeserializeObject<List<GamePointersCollectionModel>>(json);
-                // Assign each pointer to the settings file
-                var rlPointers = JsonConvert.SerializeObject(pointers.FirstOrDefault(p => p.Game == "RocketLeague"));
-                if (rlPointers != null)
-                {
-                    Offsets.Default.RocketLeague = rlPointers;
-                    Offsets.Default.Save();
-                }
-            }
-            catch (Exception)
-            {
-                // ignored
-            }
-        }
     }
 }

Artemis/Artemis/Utilities/Updater.cs

@@ -0,0 +1,98 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Net;
+using System.Windows.Forms;
+using Artemis.Models;
+using Artemis.Settings;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace Artemis.Utilities
+{
+    public static class Updater
+    {
+        public static int CurrentVersion = 100;
+
+        public static void CheckForUpdate()
+        {
+            var newRelease = IsUpdateAvailable();
+            if (newRelease == null)
+                return;
+
+            var viewUpdate =
+                MessageBox.Show(
+                    $"A new version of Artemis is available, version {newRelease["tag_name"].Value<string>()}.\n" +
+                    "Do you wish to view the update on GitHub now?\n\n" +
+                    "Note: You can disable update notifications in the settings menu", "Artemis - Update available",
+                    MessageBoxButtons.YesNo, MessageBoxIcon.Information);
+            if (viewUpdate == DialogResult.Yes)
+                Process.Start(new ProcessStartInfo(newRelease["html_url"].Value<string>()));
+        }
+
+        public static JObject IsUpdateAvailable()
+        {
+            if (!General.Default.EnablePointersUpdate)
+                return null;
+
+            try
+            {
+                var jsonClient = new WebClient();
+
+                // GitHub trips if we don't add a user agent
+                jsonClient.Headers.Add("user-agent",
+                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)");
+
+                // Random number to get around cache issues
+                var rand = new Random(DateTime.Now.Millisecond);
+                var json =
+                    jsonClient.DownloadString("https://api.github.com/repos/SpoinkyNL/Artemis/releases/latest?random=" +
+                                              rand.Next());
+
+                // Get a list of pointers
+                var release = JsonConvert.DeserializeObject<JObject>(json);
+
+                // Parse a version number string to an int
+                var remoteVersion = int.Parse(release["tag_name"].Value<string>().Replace(".", ""));
+
+                return remoteVersion > CurrentVersion ? release : null;
+            }
+            catch (Exception)
+            {
+                return null;
+            }
+        }
+
+        public static void GetPointers()
+        {
+            if (!General.Default.EnablePointersUpdate)
+                return;
+
+            try
+            {
+                var jsonClient = new WebClient();
+
+                // Random number to get around cache issues
+                var rand = new Random(DateTime.Now.Millisecond);
+                var json =
+                    jsonClient.DownloadString(
+                        "https://raw.githubusercontent.com/SpoinkyNL/Artemis/master/pointers.json?random=" + rand.Next());
+
+                // Get a list of pointers
+                var pointers = JsonConvert.DeserializeObject<List<GamePointersCollectionModel>>(json);
+                // Assign each pointer to the settings file
+                var rlPointers = JsonConvert.SerializeObject(pointers.FirstOrDefault(p => p.Game == "RocketLeague"));
+                if (rlPointers != null)
+                {
+                    Offsets.Default.RocketLeague = rlPointers;
+                    Offsets.Default.Save();
+                }
+            }
+            catch (Exception)
+            {
+                // ignored
+            }
+        }
+    }
+}

Artemis/Artemis/ViewModels/SystemTrayViewModel.cs

@@ -1,7 +1,13 @@
 using System;
-using System.Windows;
+using System.Diagnostics;
+using System.Threading.Tasks;
+using System.Windows.Forms;
 using Artemis.Events;
+using Artemis.Utilities;
 using Caliburn.Micro;
+using Newtonsoft.Json.Linq;
+using Application = System.Windows.Application;
+using Screen = Caliburn.Micro.Screen;
 
 namespace Artemis.ViewModels
 {
@@ -10,6 +16,7 @@ namespace Artemis.ViewModels
         private readonly ShellViewModel _shellViewModel;
 
         private readonly IWindowManager _windowManager;
+        private bool _checkedForUpdate;
         private bool _enabled;
         private string _toggleText;
         /*
@@ -27,6 +34,7 @@ namespace Artemis.ViewModels
             _shellViewModel = shellViewModel;
             _shellViewModel.MainManager.Events.Subscribe(this);
             _shellViewModel.MainManager.EnableProgram();
+            _checkedForUpdate = false;
 
             // TODO: Check if show on startup is enabled, if so, show window.
         }
@@ -85,6 +93,13 @@ namespace Artemis.ViewModels
             if (!CanShowWindow)
                 return;
 
+            if (!_checkedForUpdate)
+            {
+                _checkedForUpdate = true;
+                var updateTask = new Task(Updater.CheckForUpdate);
+                updateTask.Start();
+            }
+
             // manually show the next window view-model
             _windowManager.ShowWindow(_shellViewModel);
 
@@ -92,6 +107,7 @@ namespace Artemis.ViewModels
             NotifyOfPropertyChange(() => CanHideWindow);
         }
 
+
         public void HideWindow()
         {
             if (!CanHideWindow)