ninja 2 electric boogaloo (#15534)

Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Shared/Ninja/Systems/SharedStunProviderSystem.cs

@@ -0,0 +1,32 @@
+using Content.Shared.Ninja.Components;
+
+namespace Content.Shared.Ninja.Systems;
+
+/// <summary>
+/// All interaction logic is implemented serverside.
+/// This is in shared for API and access.
+/// </summary>
+public abstract class SharedStunProviderSystem : EntitySystem
+{
+    /// <summary>
+    /// Set the battery field on the stun provider.
+    /// </summary>
+    public void SetBattery(EntityUid uid, EntityUid? battery, StunProviderComponent? comp = null)
+    {
+        if (!Resolve(uid, ref comp))
+            return;
+
+        comp.BatteryUid = battery;
+    }
+
+    /// <summary>
+    /// Set the no power popup field on the stun provider.
+    /// </summary>
+    public void SetNoPowerPopup(EntityUid uid, string popup, StunProviderComponent? comp = null)
+    {
+        if (!Resolve(uid, ref comp))
+            return;
+
+        comp.NoPowerPopup = popup;
+    }
+}