package net.minecraft.client.model.monster.skeleton;

import com.mojang.blaze3d.vertex.PoseStack;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.client.model.AnimationUtils;
import net.minecraft.client.model.HumanoidModel;
import net.minecraft.client.model.geom.ModelPart;
import net.minecraft.client.model.geom.PartPose;
import net.minecraft.client.model.geom.builders.CubeDeformation;
import net.minecraft.client.model.geom.builders.CubeListBuilder;
import net.minecraft.client.model.geom.builders.LayerDefinition;
import net.minecraft.client.model.geom.builders.MeshDefinition;
import net.minecraft.client.model.geom.builders.PartDefinition;
import net.minecraft.client.renderer.entity.state.SkeletonRenderState;
import net.minecraft.util.Mth;
import net.minecraft.world.entity.HumanoidArm;

@Environment(EnvType.CLIENT)
public class SkeletonModel<S extends SkeletonRenderState> extends HumanoidModel<S> {
	public SkeletonModel(final ModelPart root) {
		super(root);
	}

	public static LayerDefinition createBodyLayer() {
		MeshDefinition mesh = HumanoidModel.createMesh(CubeDeformation.NONE, 0.0F);
		PartDefinition root = mesh.getRoot();
		createDefaultSkeletonMesh(root);
		return LayerDefinition.create(mesh, 64, 32);
	}

	protected static void createDefaultSkeletonMesh(final PartDefinition root) {
		root.addOrReplaceChild(
			"right_arm", CubeListBuilder.create().texOffs(40, 16).addBox(-1.0F, -2.0F, -1.0F, 2.0F, 12.0F, 2.0F), PartPose.offset(-5.0F, 2.0F, 0.0F)
		);
		root.addOrReplaceChild(
			"left_arm", CubeListBuilder.create().texOffs(40, 16).mirror().addBox(-1.0F, -2.0F, -1.0F, 2.0F, 12.0F, 2.0F), PartPose.offset(5.0F, 2.0F, 0.0F)
		);
		root.addOrReplaceChild(
			"right_leg", CubeListBuilder.create().texOffs(0, 16).addBox(-1.0F, 0.0F, -1.0F, 2.0F, 12.0F, 2.0F), PartPose.offset(-2.0F, 12.0F, 0.0F)
		);
		root.addOrReplaceChild(
			"left_leg", CubeListBuilder.create().texOffs(0, 16).mirror().addBox(-1.0F, 0.0F, -1.0F, 2.0F, 12.0F, 2.0F), PartPose.offset(2.0F, 12.0F, 0.0F)
		);
	}

	public static LayerDefinition createSingleModelDualBodyLayer() {
		MeshDefinition meshdefinition = new MeshDefinition();
		PartDefinition root = meshdefinition.getRoot();
		root.addOrReplaceChild(
			"body",
			CubeListBuilder.create()
				.texOffs(16, 16)
				.addBox(-4.0F, 0.0F, -2.0F, 8.0F, 12.0F, 4.0F)
				.texOffs(28, 0)
				.addBox(-4.0F, 10.0F, -2.0F, 8.0F, 1.0F, 4.0F)
				.texOffs(16, 48)
				.addBox(-4.0F, 0.0F, -2.0F, 8.0F, 12.0F, 4.0F, new CubeDeformation(0.025F)),
			PartPose.offset(0.0F, 0.0F, 0.0F)
		);
		root.addOrReplaceChild(
				"head",
				CubeListBuilder.create()
					.texOffs(0, 0)
					.addBox(-4.0F, -8.0F, -4.0F, 8.0F, 8.0F, 8.0F)
					.texOffs(0, 32)
					.addBox(-4.0F, -8.0F, -4.0F, 8.0F, 8.0F, 8.0F, new CubeDeformation(0.2F)),
				PartPose.offset(0.0F, 0.0F, 0.0F)
			)
			.addOrReplaceChild("hat", CubeListBuilder.create(), PartPose.ZERO);
		root.addOrReplaceChild(
			"right_arm",
			CubeListBuilder.create().texOffs(40, 16).addBox(-1.0F, -2.0F, -1.0F, 2.0F, 12.0F, 2.0F).texOffs(42, 33).addBox(-1.55F, -2.025F, -1.5F, 3.0F, 12.0F, 3.0F),
			PartPose.offset(-5.5F, 2.0F, 0.0F)
		);
		root.addOrReplaceChild(
			"left_arm",
			CubeListBuilder.create().texOffs(56, 16).addBox(-1.0F, -2.0F, -1.0F, 2.0F, 12.0F, 2.0F).texOffs(40, 48).addBox(-1.45F, -2.025F, -1.5F, 3.0F, 12.0F, 3.0F),
			PartPose.offset(5.5F, 2.0F, 0.0F)
		);
		root.addOrReplaceChild(
			"right_leg",
			CubeListBuilder.create().texOffs(0, 16).addBox(-1.0F, 0.0F, -1.0F, 2.0F, 12.0F, 2.0F).texOffs(0, 49).addBox(-1.5F, -0.0F, -1.5F, 3.0F, 12.0F, 3.0F),
			PartPose.offset(-2.0F, 12.0F, 0.0F)
		);
		root.addOrReplaceChild(
			"left_leg",
			CubeListBuilder.create().texOffs(0, 16).addBox(-1.0F, 0.0F, -1.0F, 2.0F, 12.0F, 2.0F).texOffs(4, 49).addBox(-1.5F, 0.0F, -1.5F, 3.0F, 12.0F, 3.0F),
			PartPose.offset(2.0F, 12.0F, 0.0F)
		);
		return LayerDefinition.create(meshdefinition, 64, 64);
	}

	public void setupAnim(final S state) {
		super.setupAnim(state);
		if (state.isAggressive && !state.isHoldingBow) {
			float attackTime = state.attackTime;
			float attack2 = Mth.sin(attackTime * (float) Math.PI);
			float attack = Mth.sin((1.0F - (1.0F - attackTime) * (1.0F - attackTime)) * (float) Math.PI);
			this.rightArm.zRot = 0.0F;
			this.leftArm.zRot = 0.0F;
			this.rightArm.yRot = -(0.1F - attack2 * 0.6F);
			this.leftArm.yRot = 0.1F - attack2 * 0.6F;
			this.rightArm.xRot = (float) (-Math.PI / 2);
			this.leftArm.xRot = (float) (-Math.PI / 2);
			this.rightArm.xRot -= attack2 * 1.2F - attack * 0.4F;
			this.leftArm.xRot -= attack2 * 1.2F - attack * 0.4F;
			AnimationUtils.bobArms(this.rightArm, this.leftArm, state.ageInTicks);
		}
	}

	public void translateToHand(final SkeletonRenderState state, final HumanoidArm arm, final PoseStack poseStack) {
		this.root().translateAndRotate(poseStack);
		float offset = arm == HumanoidArm.RIGHT ? 1.0F : -1.0F;
		ModelPart part = this.getArm(arm);
		part.x += offset;
		part.translateAndRotate(poseStack);
		part.x -= offset;
	}
}