Replace IClickAlert with events (#30728)

* Replace IAlertClick with events

* whoop

* eek!

Content.Server/Ensnaring/EnsnareableSystem.Ensnaring.cs

@@ -28,6 +28,7 @@ public sealed partial class EnsnareableSystem
         SubscribeLocalEvent<EnsnaringComponent, StepTriggeredOffEvent>(OnStepTrigger);
         SubscribeLocalEvent<EnsnaringComponent, ThrowDoHitEvent>(OnThrowHit);
         SubscribeLocalEvent<EnsnaringComponent, AttemptPacifiedThrowEvent>(OnAttemptPacifiedThrow);
+        SubscribeLocalEvent<EnsnareableComponent, RemoveEnsnareAlertEvent>(OnRemoveEnsnareAlert);
     }
 
     private void OnAttemptPacifiedThrow(Entity<EnsnaringComponent> ent, ref AttemptPacifiedThrowEvent args)
@@ -35,6 +36,24 @@ public sealed partial class EnsnareableSystem
         args.Cancel("pacified-cannot-throw-snare");
     }
 
+    private void OnRemoveEnsnareAlert(Entity<EnsnareableComponent> ent, ref RemoveEnsnareAlertEvent args)
+    {
+        if (args.Handled)
+            return;
+
+        foreach (var ensnare in ent.Comp.Container.ContainedEntities)
+        {
+            if (!TryComp<EnsnaringComponent>(ensnare, out var ensnaringComponent))
+                return;
+
+            TryFree(ent, ent, ensnare, ensnaringComponent);
+
+            args.Handled = true;
+            // Only one snare at a time.
+            break;
+        }
+    }
+
     private void OnComponentRemove(EntityUid uid, EnsnaringComponent component, ComponentRemove args)
     {
         if (!TryComp<EnsnareableComponent>(component.Ensnared, out var ensnared))