Add UI stuff to random designs.

Glamourer/Designs/Special/RandomDesignGenerator.cs

@@ -0,0 +1,37 @@
+using OtterGui.Services;
+
+namespace Glamourer.Designs.Special;
+
+public class RandomDesignGenerator(DesignStorage designs, DesignFileSystem fileSystem) : IService
+{
+    private readonly Random _rng = new();
+
+    public Design? Design(IReadOnlyList<Design> localDesigns)
+    {
+        if (localDesigns.Count == 0)
+            return null;
+
+        var idx = _rng.Next(0, localDesigns.Count - 1);
+        Glamourer.Log.Verbose($"[Random Design] Chose design {idx} out of {localDesigns.Count}: {localDesigns[idx].Incognito}.");
+        return localDesigns[idx];
+    }
+
+    public Design? Design()
+        => Design(designs);
+
+    public Design? Design(IDesignPredicate predicate)
+        => Design(predicate.Get(designs, fileSystem).ToList());
+
+    public Design? Design(IReadOnlyList<IDesignPredicate> predicates)
+    {
+        if (predicates.Count == 0)
+            return Design();
+        if (predicates.Count == 1)
+            return Design(predicates[0]);
+
+        return Design(IDesignPredicate.Get(predicates, designs, fileSystem).ToList());
+    }
+
+    public Design? Design(string restrictions)
+        => Design(RandomPredicate.GeneratePredicates(restrictions));
+}