Add support for printing reagents in lathes (#30476)

* Add support for reagents in lathes

* missing locale

Content.Shared/Lathe/SharedLatheSystem.cs

@@ -1,5 +1,8 @@
 using System.Diagnostics.CodeAnalysis;
+using System.Linq;
 using Content.Shared.Emag.Systems;
+using Content.Shared.Examine;
+using Content.Shared.Localizations;
 using Content.Shared.Materials;
 using Content.Shared.Research.Prototypes;
 using JetBrains.Annotations;
@@ -23,10 +26,21 @@ public abstract class SharedLatheSystem : EntitySystem
         base.Initialize();
 
         SubscribeLocalEvent<EmagLatheRecipesComponent, GotEmaggedEvent>(OnEmagged);
+        SubscribeLocalEvent<LatheComponent, ExaminedEvent>(OnExamined);
         SubscribeLocalEvent<PrototypesReloadedEventArgs>(OnPrototypesReloaded);
+
         BuildInverseRecipeDictionary();
     }
 
+    private void OnExamined(Entity<LatheComponent> ent, ref ExaminedEvent args)
+    {
+        if (!args.IsInDetailsRange)
+            return;
+
+        if (ent.Comp.ReagentOutputSlotId != null)
+            args.PushMarkup(Loc.GetString("lathe-menu-reagent-slot-examine"));
+    }
+
     [PublicAPI]
     public bool CanProduce(EntityUid uid, string recipe, int amount = 1, LatheComponent? component = null)
     {
@@ -40,7 +54,7 @@ public abstract class SharedLatheSystem : EntitySystem
         if (!HasRecipe(uid, recipe, component))
             return false;
 
-        foreach (var (material, needed) in recipe.RequiredMaterials)
+        foreach (var (material, needed) in recipe.Materials)
         {
             var adjustedAmount = AdjustMaterial(needed, recipe.ApplyMaterialDiscount, component.MaterialUseMultiplier);
 
@@ -72,6 +86,9 @@ public abstract class SharedLatheSystem : EntitySystem
         _inverseRecipeDictionary.Clear();
         foreach (var latheRecipe in _proto.EnumeratePrototypes<LatheRecipePrototype>())
         {
+            if (latheRecipe.Result == null)
+                continue;
+
             _inverseRecipeDictionary.GetOrNew(latheRecipe.Result).Add(latheRecipe);
         }
     }
@@ -83,4 +100,55 @@ public abstract class SharedLatheSystem : EntitySystem
             recipes.AddRange(r);
         return recipes.Count != 0;
     }
+
+    public string GetRecipeName(ProtoId<LatheRecipePrototype> proto)
+    {
+        return GetRecipeName(_proto.Index(proto));
+    }
+
+    public string GetRecipeName(LatheRecipePrototype proto)
+    {
+        if (!string.IsNullOrWhiteSpace(proto.Name))
+            return Loc.GetString(proto.Name);
+
+        if (proto.Result is { } result)
+        {
+            return _proto.Index(result).Name;
+        }
+
+        if (proto.ResultReagents is { } resultReagents)
+        {
+            return ContentLocalizationManager.FormatList(resultReagents
+                .Select(p => Loc.GetString("lathe-menu-result-reagent-display", ("reagent", _proto.Index(p.Key).LocalizedName), ("amount", p.Value)))
+                .ToList());
+        }
+
+        return string.Empty;
+    }
+
+    [PublicAPI]
+    public string GetRecipeDescription(ProtoId<LatheRecipePrototype> proto)
+    {
+        return GetRecipeDescription(_proto.Index(proto));
+    }
+
+    public string GetRecipeDescription(LatheRecipePrototype proto)
+    {
+        if (!string.IsNullOrWhiteSpace(proto.Description))
+            return Loc.GetString(proto.Description);
+
+        if (proto.Result is { } result)
+        {
+            return _proto.Index(result).Description;
+        }
+
+        if (proto.ResultReagents is { } resultReagents)
+        {
+            // We only use the first one for the description since these descriptions don't combine very well.
+            var reagent = resultReagents.First().Key;
+            return _proto.Index(reagent).LocalizedDescription;
+        }
+
+        return string.Empty;
+    }
 }