Fix #395

Signed-off-by: shedaniel <daniel@shedaniel.me>

2 files changed, 68 insertions, 0 deletions

diff --git a/RoughlyEnoughItems-api/src/main/java/me/shedaniel/rei/api/BuiltinPlugin.java b/RoughlyEnoughItems-api/src/main/java/me/shedaniel/rei/api/BuiltinPlugin.java
new file mode 100644
index 000000000..aab927847
--- /dev/null
+++ b/RoughlyEnoughItems-api/src/main/java/me/shedaniel/rei/api/BuiltinPlugin.java
@@ -0,0 +1,40 @@
+package me.shedaniel.rei.api;
+
+import me.shedaniel.rei.impl.Internals;
+import net.minecraft.item.ItemStack;
+import net.minecraft.recipe.Ingredient;
+import net.minecraft.text.Text;
+import net.minecraft.util.Identifier;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.function.UnaryOperator;
+
+public interface BuiltinPlugin {
+    Identifier CRAFTING = new Identifier("minecraft", "plugins/crafting");
+    Identifier SMELTING = new Identifier("minecraft", "plugins/smelting");
+    Identifier SMOKING = new Identifier("minecraft", "plugins/smoking");
+    Identifier BLASTING = new Identifier("minecraft", "plugins/blasting");
+    Identifier CAMPFIRE = new Identifier("minecraft", "plugins/campfire");
+    Identifier STONE_CUTTING = new Identifier("minecraft", "plugins/stone_cutting");
+    Identifier STRIPPING = new Identifier("minecraft", "plugins/stripping");
+    Identifier BREWING = new Identifier("minecraft", "plugins/brewing");
+    Identifier PLUGIN = new Identifier("roughlyenoughitems", "default_plugin");
+    Identifier COMPOSTING = new Identifier("minecraft", "plugins/composting");
+    Identifier FUEL = new Identifier("minecraft", "plugins/fuel");
+    Identifier SMITHING = new Identifier("minecraft", "plugins/smithing");
+    Identifier BEACON = new Identifier("minecraft", "plugins/beacon");
+    Identifier INFO = new Identifier("roughlyenoughitems", "plugins/information");
+    
+    static BuiltinPlugin getInstance() {
+        return Internals.getBuiltinPlugin();
+    }
+    
+    void registerBrewingRecipe(ItemStack input, Ingredient ingredient, ItemStack output);
+    
+    void registerInformation(List<EntryStack> entryStacks, Text name, UnaryOperator<List<Text>> textBuilder);
+    
+    default void registerInformation(EntryStack entryStack, Text name, UnaryOperator<List<Text>> textBuilder) {
+        registerInformation(Collections.singletonList(entryStack), name, textBuilder);
+    }
+}
diff --git a/RoughlyEnoughItems-api/src/main/java/me/shedaniel/rei/impl/Internals.java b/RoughlyEnoughItems-api/src/main/java/me/shedaniel/rei/impl/Internals.java
index 895d748a9..aaa8b4c53 100644
--- a/RoughlyEnoughItems-api/src/main/java/me/shedaniel/rei/impl/Internals.java
+++ b/RoughlyEnoughItems-api/src/main/java/me/shedaniel/rei/impl/Internals.java
@@ -42,6 +42,7 @@ import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.lang.reflect.Field;
 import java.util.Collection;
 import java.util.function.BiFunction;
 import java.util.function.Supplier;
@@ -60,6 +61,7 @@ public final class Internals {
     private static Supplier<WidgetsProvider> widgetsProvider = Internals::throwNotSetup;
     private static Supplier<ClientHelper.ViewSearchBuilder> viewSearchBuilder = Internals::throwNotSetup;
     private static BiFunction<@Nullable Point, Collection<Text>, Tooltip> tooltipProvider = (point, texts) -> throwNotSetup();
+    private static Supplier<BuiltinPlugin> builtinPlugin = Internals::throwNotSetup;
     
     private static <T> T throwNotSetup() {
         throw new AssertionError("REI Internals have not been initialized!");
@@ -126,6 +128,32 @@ public final class Internals {
         return tooltipProvider.apply(point, texts);
     }
     
+    @NotNull
+    public static BuiltinPlugin getBuiltinPlugin() {
+        return builtinPlugin.get();
+    }
+    
+    @ApiStatus.Internal
+    public static <T> void attachInstance(T instance, Class<T> clazz) {
+        attachInstance((Supplier<T>) () -> instance, clazz.getSimpleName());
+    }
+    
+    @ApiStatus.Internal
+    public static <T> void attachInstance(T instance, String name) {
+        try {
+            for (Field field : Internals.class.getDeclaredFields()) {
+                if (field.getName().equalsIgnoreCase(name)) {
+                    field.setAccessible(true);
+                    field.set(null, instance);
+                    return;
+                }
+            }
+            throw new RuntimeException("Failed to attach " + instance + " with field name: " + name);
+        } catch (IllegalAccessException e) {
+            throw new RuntimeException(e);
+        }
+    }
+    
     public interface EntryStackProvider {
         EntryStack empty();