package net.minecraft.client.gui.components;

import java.util.UUID;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.network.chat.Component;
import net.minecraft.util.Mth;
import net.minecraft.util.Util;
import net.minecraft.world.BossEvent;

@Environment(EnvType.CLIENT)
public class LerpingBossEvent extends BossEvent {
	private static final long LERP_MILLISECONDS = 100L;
	protected float targetPercent;
	protected long setTime;

	public LerpingBossEvent(
		final UUID id,
		final Component name,
		final float progress,
		final BossEvent.BossBarColor color,
		final BossEvent.BossBarOverlay overlay,
		final boolean darkenScreen,
		final boolean playMusic,
		final boolean createWorldFog
	) {
		super(id, name, color, overlay);
		this.targetPercent = progress;
		this.progress = progress;
		this.setTime = Util.getMillis();
		this.setDarkenScreen(darkenScreen);
		this.setPlayBossMusic(playMusic);
		this.setCreateWorldFog(createWorldFog);
	}

	@Override
	public void setProgress(final float progress) {
		this.progress = this.getProgress();
		this.targetPercent = progress;
		this.setTime = Util.getMillis();
	}

	@Override
	public float getProgress() {
		long timeSinceSet = Util.getMillis() - this.setTime;
		float lerpPercent = Mth.clamp((float)timeSinceSet / 100.0F, 0.0F, 1.0F);
		return Mth.lerp(lerpPercent, this.progress, this.targetPercent);
	}
}