More small refactors, move all actual mapping code out of GeyserMappings

src/main/java/org/geysermc/packgenerator/mapping/BedrockItemMapper.java

@@ -24,6 +24,7 @@ import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.ProblemReporter;
 import net.minecraft.world.item.CrossbowItem;
+import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.equipment.trim.TrimMaterial;
 import net.minecraft.world.level.Level;
 import org.geysermc.packgenerator.accessor.BlockModelWrapperLocationAccessor;
@@ -31,6 +32,7 @@ import org.geysermc.packgenerator.accessor.ResolvedModelAccessor;
 import org.geysermc.packgenerator.accessor.SelectItemModelCasesAccessor;
 import org.geysermc.packgenerator.mapping.attachable.AttachableMapper;
 import org.geysermc.packgenerator.mapping.geometry.GeometryMapper;
+import org.geysermc.packgenerator.mapping.geyser.GeyserMappings;
 import org.geysermc.packgenerator.mapping.geyser.GeyserSingleDefinition;
 import org.geysermc.packgenerator.mapping.geyser.predicate.GeyserConditionPredicate;
 import org.geysermc.packgenerator.mapping.geyser.predicate.GeyserMatchPredicate;
@@ -50,6 +52,15 @@ public class BedrockItemMapper {
             .map(ResourceLocation::withDefaultNamespace)
             .toList();
 
+    public static void tryMapStack(ItemStack stack, ResourceLocation model, ProblemReporter reporter,
+                                   GeyserMappings mappings, BedrockItemConsumer itemConsumer, Consumer<ResourceLocation> additionalTextureConsumer) {
+        String displayName = stack.getHoverName().getString();
+        int protectionValue = 0; // TODO check the attributes
+
+        mapItem(model, displayName, protectionValue, stack.getComponentsPatch(), reporter,
+                mapping -> mappings.map(stack.getItemHolder(), mapping), itemConsumer, additionalTextureConsumer);
+    }
+
     public static void mapItem(ResourceLocation modelLocation, String displayName, int protectionValue, DataComponentPatch componentPatch, ProblemReporter reporter,
                                Consumer<GeyserSingleDefinition> mappingConsumer, BedrockItemConsumer itemConsumer, Consumer<ResourceLocation> additionalTextureConsumer) {
         ItemModel model = Minecraft.getInstance().getModelManager().getItemModel(modelLocation);

src/main/java/org/geysermc/packgenerator/mapping/geyser/GeyserGroupDefinition.java

@@ -37,6 +37,18 @@ public record GeyserGroupDefinition(Optional<ResourceLocation> model, List<Geyse
         return false;
     }
 
+    public int size() {
+        int totalSize = 0;
+        for (GeyserMapping definition : definitions) {
+            if (definition instanceof GeyserGroupDefinition group) {
+                totalSize += group.size();
+            } else {
+                totalSize++;
+            }
+        }
+        return totalSize;
+    }
+
     @Override
     public Type type() {
         return Type.GROUP;

src/main/java/org/geysermc/packgenerator/mapping/geyser/GeyserMappings.java

@@ -6,19 +6,14 @@ import com.mojang.serialization.Codec;
 import com.mojang.serialization.codecs.RecordCodecBuilder;
 import net.minecraft.core.Holder;
 import net.minecraft.resources.ResourceLocation;
-import net.minecraft.util.ProblemReporter;
 import net.minecraft.world.item.Item;
-import net.minecraft.world.item.ItemStack;
 import org.geysermc.packgenerator.CodecUtil;
-import org.geysermc.packgenerator.mapping.BedrockItemConsumer;
-import org.geysermc.packgenerator.mapping.BedrockItemMapper;
 
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
-import java.util.function.Consumer;
 import java.util.function.Function;
 
 public class GeyserMappings {
@@ -72,15 +67,15 @@ public class GeyserMappings {
     }
 
     public int size() {
-        return mappings.size();
+        int totalSize = 0;
+        for (GeyserMapping mapping : mappings.values()) {
+            if (mapping instanceof GeyserGroupDefinition group) {
+                totalSize += group.size();
+            } else {
+                totalSize++;
             }
-
-    public void map(ItemStack stack, ResourceLocation model, ProblemReporter reporter, BedrockItemConsumer itemConsumer, Consumer<ResourceLocation> additionalTextureConsumer) {
-        String displayName = stack.getHoverName().getString();
-        int protectionValue = 0; // TODO check the attributes
-
-        BedrockItemMapper.mapItem(model, displayName, protectionValue, stack.getComponentsPatch(), reporter,
-                mapping -> map(stack.getItemHolder(), mapping), itemConsumer, additionalTextureConsumer);
+        }
+        return totalSize;
     }
 
     public Map<Holder<Item>, Collection<GeyserMapping>> mappings() {

src/main/java/org/geysermc/packgenerator/pack/BedrockPack.java

@@ -10,6 +10,7 @@ import net.minecraft.world.item.ItemStack;
 import org.apache.commons.io.IOUtils;
 import org.geysermc.packgenerator.CodecUtil;
 import org.geysermc.packgenerator.PackConstants;
+import org.geysermc.packgenerator.mapping.BedrockItemMapper;
 import org.geysermc.packgenerator.mapping.geyser.GeyserMappings;
 import org.geysermc.packgenerator.mixin.SplashRendererAccessor;
 import org.jetbrains.annotations.NotNull;
@@ -99,7 +100,7 @@ public class BedrockPack {
             }
         };
 
-        mappings.map(stack, model, mapReporter, bedrockItem -> {
+        BedrockItemMapper.tryMapStack(stack, model, mapReporter, mappings, bedrockItem -> {
             itemTextures.withItemTexture(bedrockItem);
             texturesToExport.add(bedrockItem.texture());
             bedrockItems.add(bedrockItem);