SolutionContainerComponent refactors (#2746)

* Moves ContainsReagent from SolutionContainer to Solution

* GetMajorReagentId from SOlutionContainer to Solution

* Makes capability checks use HasFlag

* Moves Solution Color calculation from SolutionContainer to Solution

* Replaces SolutionContainerCaps.NoExamine with CanExamine

* Misc SolutionContainer.Capabilities yaml cleanup

* Removes HasFlag usage in SolutionContainerComponent

Co-authored-by: py01 <pyronetics01@gmail.com>

Content.Shared/Chemistry/Solution.cs

@@ -1,8 +1,12 @@
-using System;
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
+using System.Linq;
 using Robust.Shared.Interfaces.Serialization;
+using Robust.Shared.IoC;
+using Robust.Shared.Maths;
+using Robust.Shared.Prototypes;
 using Robust.Shared.Serialization;
 using Robust.Shared.Utility;
 using Robust.Shared.ViewVariables;
@@ -27,6 +31,8 @@ namespace Content.Shared.Chemistry
         [ViewVariables]
         public ReagentUnit TotalVolume { get; private set; }
 
+        public Color Color => GetColor();
+
         /// <summary>
         ///     Constructs an empty solution (ex. an empty beaker).
         /// </summary>
@@ -57,6 +63,32 @@ namespace Content.Shared.Chemistry
                 () => _contents);
         }
 
+        public bool ContainsReagent(string reagentId, out ReagentUnit quantity)
+        {
+            foreach (var reagent in Contents)
+            {
+                if (reagent.ReagentId == reagentId)
+                {
+                    quantity = reagent.Quantity;
+                    return true;
+                }
+            }
+
+            quantity = ReagentUnit.New(0);
+            return false;
+        }
+
+        public string GetPrimaryReagentId()
+        {
+            if (Contents.Count == 0)
+            {
+                return "";
+            }
+
+            var majorReagent = Contents.OrderByDescending(reagent => reagent.Quantity).First(); ;
+            return majorReagent.ReagentId;
+        }
+
         /// <summary>
         ///     Adds a given quantity of a reagent directly into the solution.
         /// </summary>
@@ -231,6 +263,37 @@ namespace Content.Shared.Chemistry
             TotalVolume += otherSolution.TotalVolume;
         }
 
+        private Color GetColor()
+        {
+            if (TotalVolume == 0)
+            {
+                return Color.Transparent;
+            }
+
+            Color mixColor = default;
+            var runningTotalQuantity = ReagentUnit.New(0);
+
+            foreach (var reagent in Contents)
+            {
+                runningTotalQuantity += reagent.Quantity;
+
+                if (!IoCManager.Resolve<IPrototypeManager>().TryIndex(reagent.ReagentId, out ReagentPrototype proto))
+                {
+                    continue;
+                }
+
+                if (mixColor == default)
+                {
+                    mixColor = proto.SubstanceColor;
+                    continue;
+                }
+
+                var interpolateValue = (1 / runningTotalQuantity.Float()) * reagent.Quantity.Float();
+                mixColor = Color.InterpolateBetween(mixColor, proto.SubstanceColor, interpolateValue);
+            }
+            return mixColor;
+        }
+
         public Solution Clone()
         {
             var volume = ReagentUnit.New(0);