install keys

ModpackUpdater/AppFeatures.cs

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+using ModpackUpdater.Model;
+using Unleash;
+
+namespace ModpackUpdater;
+
+public enum AppFeatures
+{
+    AllowExtras
+}
+
+public static class AppFeaturesExtensions
+{
+    private const string apiUrl = "https://git.pilzinsel64.de/api/v4/feature_flags/unleash/2";
+    private const string instanceId = "glffct-3vCzJXChAnxjsgvoHijR";
+
+    private static IUnleash api;
+    private static UnleashContext context;
+    private static UnleashSettings settings;
+
+    public static bool IsEnabled(this AppFeatures feature, AppFeatureContext context)
+    {
+        return feature switch
+        {
+            AppFeatures.AllowExtras => CheckFeature("allow-extras", false, context),
+            _ => throw new NotSupportedException(),
+        };
+    }
+
+    public static bool IsEnabled(this AppFeatures feature)
+    {
+        return feature switch
+        {
+            _ => throw new NotSupportedException(),
+        };
+    }
+
+    private static bool InitializeApi()
+    {
+        if (api == null)
+        {
+            settings = new UnleashSettings
+            {
+                AppName = "Modpack Updater",
+                UnleashApi = new Uri(apiUrl),
+                FetchTogglesInterval = TimeSpan.FromSeconds(60 * 5),
+                InstanceTag = instanceId,
+            };
+
+            api = new DefaultUnleash(settings);
+        }
+
+        return api != null;
+    }
+
+    private static bool CheckFeature(string name, bool defaultValue, AppFeatureContext context)
+    {
+        return InitializeApi() && api.IsEnabled(name, GetContext(context), defaultValue);
+    }
+
+    private static UnleashContext GetContext(AppFeatureContext ccontext)
+    {
+        context ??= new();
+        context.CurrentTime = DateTime.Now;
+        ccontext?.Apply(context);
+        return context;
+    }
+}
+
+public abstract class AppFeatureContext
+{
+    public abstract void Apply(UnleashContext context);
+}
+
+public class AllowExtrasFeatureContext(ModpackInfo info, ModpackConfig config) : AppFeatureContext
+{
+    public override void Apply(UnleashContext context)
+    {
+        context.UserId = info.ExtrasKey;
+        context.Environment = config.Key;
+    }
+}