A little bit refactoring

src/main/java/ru/betterend/integration/rei/REIAnvilDisplay.java

@@ -0,0 +1,73 @@
+package ru.betterend.integration.rei;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+
+import org.jetbrains.annotations.NotNull;
+
+import me.shedaniel.rei.api.EntryStack;
+import me.shedaniel.rei.api.TransferRecipeDisplay;
+import me.shedaniel.rei.server.ContainerInfo;
+import net.minecraft.recipe.Recipe;
+import net.minecraft.screen.ScreenHandler;
+import net.minecraft.util.Identifier;
+import ru.betterend.recipe.builders.AnvilSmithingRecipe;
+
+public class REIAnvilDisplay implements TransferRecipeDisplay {
+	
+	private AnvilSmithingRecipe recipe;
+	private List<List<EntryStack>> input;
+	private List<EntryStack> output;
+	
+	public REIAnvilDisplay(AnvilSmithingRecipe recipe) {
+		this.recipe = recipe;
+		this.input = EntryStack.ofIngredients(recipe.getPreviewInputs());
+		this.output = Collections.singletonList(EntryStack.create(recipe.getOutput()));
+	}
+	
+	public int getDamage() {
+		return this.recipe.getDamage();
+	}
+	
+	@Override
+	public @NotNull Optional<Identifier> getRecipeLocation() {
+		return Optional.ofNullable(recipe).map(Recipe::getId);
+	}
+
+	@Override
+	public @NotNull List<List<EntryStack>> getInputEntries() {
+		return this.input;
+	}
+	
+	@Override
+	public @NotNull List<List<EntryStack>> getResultingEntries() {
+		return Collections.singletonList(output);
+	}
+
+	@Override
+	public @NotNull Identifier getRecipeCategory() {
+		return REIPlugin.SMITHING;
+	}
+	
+	@Override
+	public @NotNull List<List<EntryStack>> getRequiredEntries() {
+		return this.input;
+	}
+
+	@Override
+	public int getWidth() {
+		return 2;
+	}
+
+	@Override
+	public int getHeight() {
+		return 1;
+	}
+
+	@Override
+	public List<List<EntryStack>> getOrganisedInputEntries(ContainerInfo<ScreenHandler> containerInfo,
+			ScreenHandler container) {
+		return this.input;
+	}
+}