package net.minecraft.client.model;

import com.google.common.collect.ImmutableList;
import com.mojang.blaze3d.vertex.PoseStack;
import com.mojang.blaze3d.vertex.VertexConsumer;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
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.util.Mth;
import net.minecraft.world.entity.animal.horse.AbstractChestedHorse;

@Environment(EnvType.CLIENT)
public class LlamaModel<T extends AbstractChestedHorse> extends EntityModel<T> {
	private final ModelPart head;
	private final ModelPart body;
	private final ModelPart rightHindLeg;
	private final ModelPart leftHindLeg;
	private final ModelPart rightFrontLeg;
	private final ModelPart leftFrontLeg;
	private final ModelPart rightChest;
	private final ModelPart leftChest;

	public LlamaModel(ModelPart root) {
		this.head = root.getChild("head");
		this.body = root.getChild("body");
		this.rightChest = root.getChild("right_chest");
		this.leftChest = root.getChild("left_chest");
		this.rightHindLeg = root.getChild("right_hind_leg");
		this.leftHindLeg = root.getChild("left_hind_leg");
		this.rightFrontLeg = root.getChild("right_front_leg");
		this.leftFrontLeg = root.getChild("left_front_leg");
	}

	public static LayerDefinition createBodyLayer(CubeDeformation cubeDeformation) {
		MeshDefinition meshDefinition = new MeshDefinition();
		PartDefinition partDefinition = meshDefinition.getRoot();
		partDefinition.addOrReplaceChild(
			"head",
			CubeListBuilder.create()
				.texOffs(0, 0)
				.addBox(-2.0F, -14.0F, -10.0F, 4.0F, 4.0F, 9.0F, cubeDeformation)
				.texOffs(0, 14)
				.addBox("neck", -4.0F, -16.0F, -6.0F, 8.0F, 18.0F, 6.0F, cubeDeformation)
				.texOffs(17, 0)
				.addBox("ear", -4.0F, -19.0F, -4.0F, 3.0F, 3.0F, 2.0F, cubeDeformation)
				.texOffs(17, 0)
				.addBox("ear", 1.0F, -19.0F, -4.0F, 3.0F, 3.0F, 2.0F, cubeDeformation),
			PartPose.offset(0.0F, 7.0F, -6.0F)
		);
		partDefinition.addOrReplaceChild(
			"body",
			CubeListBuilder.create().texOffs(29, 0).addBox(-6.0F, -10.0F, -7.0F, 12.0F, 18.0F, 10.0F, cubeDeformation),
			PartPose.offsetAndRotation(0.0F, 5.0F, 2.0F, (float) (Math.PI / 2), 0.0F, 0.0F)
		);
		partDefinition.addOrReplaceChild(
			"right_chest",
			CubeListBuilder.create().texOffs(45, 28).addBox(-3.0F, 0.0F, 0.0F, 8.0F, 8.0F, 3.0F, cubeDeformation),
			PartPose.offsetAndRotation(-8.5F, 3.0F, 3.0F, 0.0F, (float) (Math.PI / 2), 0.0F)
		);
		partDefinition.addOrReplaceChild(
			"left_chest",
			CubeListBuilder.create().texOffs(45, 41).addBox(-3.0F, 0.0F, 0.0F, 8.0F, 8.0F, 3.0F, cubeDeformation),
			PartPose.offsetAndRotation(5.5F, 3.0F, 3.0F, 0.0F, (float) (Math.PI / 2), 0.0F)
		);
		int i = 4;
		int j = 14;
		CubeListBuilder cubeListBuilder = CubeListBuilder.create().texOffs(29, 29).addBox(-2.0F, 0.0F, -2.0F, 4.0F, 14.0F, 4.0F, cubeDeformation);
		partDefinition.addOrReplaceChild("right_hind_leg", cubeListBuilder, PartPose.offset(-3.5F, 10.0F, 6.0F));
		partDefinition.addOrReplaceChild("left_hind_leg", cubeListBuilder, PartPose.offset(3.5F, 10.0F, 6.0F));
		partDefinition.addOrReplaceChild("right_front_leg", cubeListBuilder, PartPose.offset(-3.5F, 10.0F, -5.0F));
		partDefinition.addOrReplaceChild("left_front_leg", cubeListBuilder, PartPose.offset(3.5F, 10.0F, -5.0F));
		return LayerDefinition.create(meshDefinition, 128, 64);
	}

	/**
	 * Sets this entity's model rotation angles
	 */
	public void setupAnim(T entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch) {
		this.head.xRot = headPitch * (float) (Math.PI / 180.0);
		this.head.yRot = netHeadYaw * (float) (Math.PI / 180.0);
		this.rightHindLeg.xRot = Mth.cos(limbSwing * 0.6662F) * 1.4F * limbSwingAmount;
		this.leftHindLeg.xRot = Mth.cos(limbSwing * 0.6662F + (float) Math.PI) * 1.4F * limbSwingAmount;
		this.rightFrontLeg.xRot = Mth.cos(limbSwing * 0.6662F + (float) Math.PI) * 1.4F * limbSwingAmount;
		this.leftFrontLeg.xRot = Mth.cos(limbSwing * 0.6662F) * 1.4F * limbSwingAmount;
		boolean bl = !entity.isBaby() && entity.hasChest();
		this.rightChest.visible = bl;
		this.leftChest.visible = bl;
	}

	@Override
	public void renderToBuffer(PoseStack poseStack, VertexConsumer buffer, int packedLight, int packedOverlay, int color) {
		if (this.young) {
			float f = 2.0F;
			poseStack.pushPose();
			float g = 0.7F;
			poseStack.scale(0.71428573F, 0.64935064F, 0.7936508F);
			poseStack.translate(0.0F, 1.3125F, 0.22F);
			this.head.render(poseStack, buffer, packedLight, packedOverlay, color);
			poseStack.popPose();
			poseStack.pushPose();
			float h = 1.1F;
			poseStack.scale(0.625F, 0.45454544F, 0.45454544F);
			poseStack.translate(0.0F, 2.0625F, 0.0F);
			this.body.render(poseStack, buffer, packedLight, packedOverlay, color);
			poseStack.popPose();
			poseStack.pushPose();
			poseStack.scale(0.45454544F, 0.41322312F, 0.45454544F);
			poseStack.translate(0.0F, 2.0625F, 0.0F);
			ImmutableList.of(this.rightHindLeg, this.leftHindLeg, this.rightFrontLeg, this.leftFrontLeg, this.rightChest, this.leftChest)
				.forEach(modelPart -> modelPart.render(poseStack, buffer, packedLight, packedOverlay, color));
			poseStack.popPose();
		} else {
			ImmutableList.of(this.head, this.body, this.rightHindLeg, this.leftHindLeg, this.rightFrontLeg, this.leftFrontLeg, this.rightChest, this.leftChest)
				.forEach(modelPart -> modelPart.render(poseStack, buffer, packedLight, packedOverlay, color));
		}
	}
}