Cache app display name (#1350)

Assets/PatchKit Patcher/Scripts/GameTitle.cs

@@ -2,26 +2,71 @@
 using UnityEngine.UI;
 using UniRx;
 using PatchKit.Unity.Patcher.Debug;
+using PatchKit.Unity.Patcher.AppData.Local;
 
 namespace PatchKit.Unity
 {
     public class GameTitle : MonoBehaviour
     {
+        private const string TitleCacheKey = "app-display-name";
+
         public Text Text;
 
+        private bool _hasBeenSet;
+
         private void Start()
         {
             var patcher = Patcher.Patcher.Instance;
 
             Assert.IsNotNull(patcher);
             Assert.IsNotNull(Text);
 
+            patcher.Data
+                .ObserveOnMainThread()
+                .Select(x => x.AppSecret)
+                .SkipWhile(string.IsNullOrEmpty)
+                .First()
+                .Subscribe(UseCachedText)
+                .AddTo(this);
+
             patcher.AppInfo
                 .ObserveOnMainThread()
-                .Select(app => app.DisplayName)
-                .Where(s => !string.IsNullOrEmpty(s))
-                .SubscribeToText(Text)
+                .Where(x => !string.IsNullOrEmpty(x.DisplayName))
+                .Subscribe(SetAndCacheText)
                 .AddTo(this);
         }
+
+        private void UseCachedText(string appSecret)
+        {
+            if (_hasBeenSet)
+            {
+                return;
+            }
+
+            var cachedDisplayName = GetCache(appSecret)
+                .GetValue(TitleCacheKey, null);
+
+            if (string.IsNullOrEmpty(cachedDisplayName))
+            {
+                return;
+            }
+
+            Text.text = cachedDisplayName;
+        }
+
+        private void SetAndCacheText(PatchKit.Api.Models.Main.App app)
+        {
+            string displayName = app.DisplayName;
+
+            GetCache(app.Secret).SetValue(TitleCacheKey, displayName);
+            Text.text = displayName;
+
+            _hasBeenSet = true;
+        }
+
+        private ICache GetCache(string appSecret)
+        {
+            return new UnityCache(appSecret);
+        }
     }
 }

CHANGELOG.md

@@ -6,6 +6,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [3.x.x.x]
 ### Added
+- Caching application display name so it can be displayed in offline mode (#1350)
 - Caching application changelog so it can be displayed in offline mode (#1361)
 - Skip unchanged files while patching (#994)