Predict dumping (#32394)

* Predict dumping

- This got soaped really fucking hard.
- Dumping is predicted, this required disposals to be predicte.d
- Disposals required mailing (because it's tightly coupled), and a smidge of other content systems.
- I also had to fix a compnetworkgenerator issue at the same time so it wouldn't mispredict.

* Fix a bunch of stuff

* nasty merge

* Some reviews

* Some more reviews while I stash

* Fix merge

* Fix merge

* Half of review

* Review

* re(h)f

* lizards

* feexes

* feex

Content.IntegrationTests/Tests/Disposal/DisposalUnitTest.cs

@@ -1,13 +1,12 @@
 #nullable enable annotations
 using System.Linq;
 using System.Numerics;
-using Content.Server.Disposal.Tube.Components;
-using Content.Server.Disposal.Unit.Components;
-using Content.Server.Disposal.Unit.EntitySystems;
+using Content.Server.Disposal.Unit;
 using Content.Server.Power.Components;
-using Content.Shared.Disposal;
+using Content.Server.Power.EntitySystems;
 using Content.Shared.Disposal.Components;
-using NUnit.Framework;
+using Content.Shared.Disposal.Tube;
+using Content.Shared.Disposal.Unit;
 using Robust.Shared.GameObjects;
 using Robust.Shared.Reflection;
 
@@ -30,7 +29,6 @@ namespace Content.IntegrationTests.Tests.Disposal
                 {
                     var (_, toInsert, unit) = ev;
                     var insertTransform = EntityManager.GetComponent<TransformComponent>(toInsert);
-                    var unitTransform = EntityManager.GetComponent<TransformComponent>(unit);
                     // Not in a tube yet
                     Assert.That(insertTransform.ParentUid, Is.EqualTo(unit));
                 }, after: new[] { typeof(SharedDisposalUnitSystem) });
@@ -163,6 +161,8 @@ namespace Content.IntegrationTests.Tests.Disposal
             var entityManager = server.ResolveDependency<IEntityManager>();
             var xformSystem = entityManager.System<SharedTransformSystem>();
             var disposalSystem = entityManager.System<DisposalUnitSystem>();
+            var power = entityManager.System<PowerReceiverSystem>();
+
             await server.WaitAssertion(() =>
             {
                 // Spawn the entities
@@ -191,7 +191,7 @@ namespace Content.IntegrationTests.Tests.Disposal
                 xformSystem.AnchorEntity(unitUid, entityManager.GetComponent<TransformComponent>(unitUid));
 
                 // No power
-                Assert.That(unitComponent.Powered, Is.False);
+                Assert.That(power.IsPowered(unitUid), Is.False);
 
                 // Can't insert the trunk or the unit into itself
                 UnitInsertContains(unitUid, unitComponent, false, disposalSystem, disposalUnit, disposalTrunk);
@@ -227,9 +227,9 @@ namespace Content.IntegrationTests.Tests.Disposal
             await server.WaitAssertion(() =>
             {
                 // Remove power need
-                Assert.That(entityManager.TryGetComponent(disposalUnit, out ApcPowerReceiverComponent power));
-                power!.NeedsPower = false;
-                unitComponent.Powered = true; //Power state changed event doesn't get fired smh
+                Assert.That(entityManager.TryGetComponent(disposalUnit, out ApcPowerReceiverComponent powerComp));
+                power.SetNeedsPower(disposalUnit, false);
+                powerComp.Powered = true;
 
                 // Flush with a mob and an item
                 Flush(disposalUnit, unitComponent, true, disposalSystem, human, wrench);