Solution Entities (#21916)

* Creates Content.Shared.Chemistry.Solutions
Copies Solution class to new namespace
Obsoletes old Solution class

* Switches over to the Solutions.Solution Solution

* Creates Content.Shared.Chemistry.Containers
Copies relevant components/systems to the new namespace
Obsoletes old versions

* Switches over to the Containers.XYZ namespace

* Creates SolutionSystem and obsoletes old SolutionContainerSystem methods

* Start using SolutionSystem for Solution manipulation

* EnumerateSolutions

* Move TryGetMixableSolution

* Move EnsureSolution to Server

* Create Solution Entities

* Stop using obsolete solution system methods

* Fix prototype component tests

* Add using ..Audio.Systems; back

* Wrap solution container slots in ContainerSlots

* Actually add the slot to the solution container map

* Dirty SolutionContainerComponent when ensuring solutions

* Revert namespace changes

* Remerge SolutionSystem and SolutionContainerSystem

* SolutionContainerManagerComponent refactor

* Avoid wrapping necessary code in DebugTools.Assert as it is removed when compiling for release

* Readd examine reagent sorting

* Fix errors

* Poke tests

* Fix solution names not being applied

* Fix WoolyComponent including statement

* Fix merge skew

* Fix compile errors

* Make reactions use solntities

* Reindent solution class namespace

* Field attribute changes

* AutoGenerateComponentState for SolutionContainerComponent

* SolutionContainerComponent -> ContainedSolutionComponent

* ref ReactionAttemptEvent

* Denetwork preinit solutions

* Misc 1

* Nullable TryGetSolution out vars

* Cache associated solutions

* Fix merge skew

* Use explicit regions in SharedSolutionContainerSystem.Capabilities

* Add debug assert

* Use explicit regions in SharedSolutionContainerSystem.Relay + ref SolutionContainerChangedEvent

* ContainedSolutionComponent.Name -> ContainedSolutionComponent.ContainerName

* SolutionComponent doc comments

* Implicit DataField names and property purge

* ReagentEffect DataField names

* Local variables for readability

* Sort using statements + Entity<T> event handlers

* Fix compile erros

* Fix compile errors

---------

Co-authored-by: ElectroJr <leonsfriedrich@gmail.com>

Content.Server/Administration/Toolshed/SolutionCommand.cs

@@ -1,12 +1,12 @@
-using System.Linq;
+using Content.Server.Chemistry.Containers.EntitySystems;
 using Content.Shared.Administration;
 using Content.Shared.Chemistry.Components;
-using Content.Shared.Chemistry.EntitySystems;
 using Content.Shared.Chemistry.Reagent;
 using Content.Shared.FixedPoint;
 using Robust.Shared.Toolshed;
 using Robust.Shared.Toolshed.Syntax;
 using Robust.Shared.Toolshed.TypeParsers;
+using System.Linq;
 
 namespace Content.Server.Administration.Toolshed;
 
@@ -24,10 +24,8 @@ public sealed class SolutionCommand : ToolshedCommand
     {
         _solutionContainer ??= GetSys<SolutionContainerSystem>();
 
-        _solutionContainer.TryGetSolution(input, name.Evaluate(ctx)!, out var solution);
-
-        if (solution is not null)
-            return new SolutionRef(input, solution);
+        if (_solutionContainer.TryGetSolution(input, name.Evaluate(ctx)!, out var solution))
+            return new SolutionRef(solution.Value);
 
         return null;
     }
@@ -55,11 +53,11 @@ public sealed class SolutionCommand : ToolshedCommand
         var amount = amountRef.Evaluate(ctx);
         if (amount > 0)
         {
-            _solutionContainer.TryAddReagent(input.Owner, input.Solution, name.Value.ID, amount, out _);
+            _solutionContainer.TryAddReagent(input.Solution, name.Value.ID, amount, out _);
         }
         else if (amount < 0)
         {
-            _solutionContainer.RemoveReagent(input.Owner, input.Solution, name.Value.ID, -amount);
+            _solutionContainer.RemoveReagent(input.Solution, name.Value.ID, -amount);
         }
 
         return input;
@@ -75,10 +73,10 @@ public sealed class SolutionCommand : ToolshedCommand
         => input.Select(x => AdjReagent(ctx, x, name, amountRef));
 }
 
-public readonly record struct SolutionRef(EntityUid Owner, Solution Solution)
+public readonly record struct SolutionRef(Entity<SolutionComponent> Solution)
 {
     public override string ToString()
     {
-        return $"{Owner} {Solution}";
+        return $"{Solution.Owner} {Solution.Comp.Solution}";
     }
 }