package net.minecraft.client.renderer.texture;

import com.mojang.blaze3d.textures.AddressMode;
import com.mojang.blaze3d.textures.FilterMode;
import com.mojang.blaze3d.textures.GpuTexture;
import com.mojang.blaze3d.textures.GpuTextureView;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import org.jetbrains.annotations.Nullable;

@Environment(EnvType.CLIENT)
public abstract class AbstractTexture implements AutoCloseable {
	@Nullable
	protected GpuTexture texture;
	@Nullable
	protected GpuTextureView textureView;

	public void setClamp(boolean clamp) {
		if (this.texture == null) {
			throw new IllegalStateException("Texture does not exist, can't change its clamp before something initializes it");
		} else {
			this.texture.setAddressMode(clamp ? AddressMode.CLAMP_TO_EDGE : AddressMode.REPEAT);
		}
	}

	/**
	 * @param mipmap {@code true} if a mipmap is being used (mip level is greater than 0)
	 */
	public void setFilter(boolean blur, boolean mipmap) {
		if (this.texture == null) {
			throw new IllegalStateException("Texture does not exist, can't get change its filter before something initializes it");
		} else {
			this.texture.setTextureFilter(blur ? FilterMode.LINEAR : FilterMode.NEAREST, mipmap);
		}
	}

	public void setUseMipmaps(boolean useMipmaps) {
		if (this.texture == null) {
			throw new IllegalStateException("Texture does not exist, can't get change its filter before something initializes it");
		} else {
			this.texture.setUseMipmaps(useMipmaps);
		}
	}

	public void close() {
		if (this.texture != null) {
			this.texture.close();
			this.texture = null;
		}

		if (this.textureView != null) {
			this.textureView.close();
			this.textureView = null;
		}
	}

	public GpuTexture getTexture() {
		if (this.texture == null) {
			throw new IllegalStateException("Texture does not exist, can't get it before something initializes it");
		} else {
			return this.texture;
		}
	}

	public GpuTextureView getTextureView() {
		if (this.textureView == null) {
			throw new IllegalStateException("Texture view does not exist, can't get it before something initializes it");
		} else {
			return this.textureView;
		}
	}
}