mod/src/main/java/moe/nea/ledger/mixin/devenv/RegisterModResourcesPatch.java


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package moe.nea.ledger.mixin.devenv;

import com.google.common.eventbus.EventBus;
import net.minecraftforge.fml.client.FMLFileResourcePack;
import net.minecraftforge.fml.common.DummyModContainer;
import net.minecraftforge.fml.common.LoadController;
import net.minecraftforge.fml.common.ModContainer;
import net.minecraftforge.fml.common.ModMetadata;
import net.minecraftforge.fml.common.discovery.ASMDataTable;
import net.minecraftforge.fml.common.discovery.ContainerType;
import net.minecraftforge.fml.common.discovery.ModCandidate;
import net.minecraftforge.fml.common.discovery.ModDiscoverer;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;

import java.io.File;
import java.util.Collections;
import java.util.List;

@Mixin(value = ModDiscoverer.class, remap = false)
public class RegisterModResourcesPatch {
	@Shadow
	private List<ModCandidate> candidates;

	@Inject(method = "identifyMods", at = @At("HEAD"), remap = false)
	private void addCandidate(CallbackInfoReturnable<List<ModContainer>> cir) {
		String bonusResourceMod = System.getProperty("ledger.bonusresourcemod");
		if (bonusResourceMod == null) return;
		File file = new File(bonusResourceMod);
		if (!file.isDirectory()) return;
		ModMetadata modMetadata = new ModMetadata();
		modMetadata.modId = "ledger-bonus";
		modMetadata.name = "Ledger Bonus Resources";
		modMetadata.autogenerated = true;
		ModContainer container = new DummyModContainer(modMetadata) {
			@Override
			public Object getMod() {
				return new Object();
			}

			@Override
			public boolean registerBus(EventBus bus, LoadController controller) {
				return true;
			}

			@Override
			public File getSource() {
				return file;
			}

			@Override
			public Class<?> getCustomResourcePackClass() {
				return FMLFileResourcePack.class;
			}
		};
		candidates.add(new ModCandidate(file, file, ContainerType.DIR) {
			@Override
			public List<ModContainer> explore(ASMDataTable table) {
				return Collections.singletonList(container);
			}
		});
	}
}