Gas tank internals alerts (#9567)

Content.Server/Atmos/EntitySystems/AtmosphereSystem.BreathTool.cs

@@ -0,0 +1,30 @@
+using Content.Server.Atmos.Components;
+using Content.Server.Body.Components;
+
+namespace Content.Server.Atmos.EntitySystems;
+
+public sealed partial class AtmosphereSystem
+{
+    private void InitializeBreathTool()
+    {
+        SubscribeLocalEvent<BreathToolComponent, ComponentShutdown>(OnBreathToolShutdown);
+    }
+
+    private void OnBreathToolShutdown(EntityUid uid, BreathToolComponent component, ComponentShutdown args)
+    {
+        DisconnectInternals(component);
+    }
+
+    public void DisconnectInternals(BreathToolComponent component)
+    {
+        var old = component.ConnectedInternalsEntity;
+        component.ConnectedInternalsEntity = null;
+
+        if (TryComp<InternalsComponent>(old, out var internalsComponent))
+        {
+            _internals.DisconnectBreathTool(internalsComponent);
+        }
+
+        component.IsFunctional = false;
+    }
+}