package com.mojang.blaze3d.platform;

import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.Util;
import net.minecraft.client.InactivityFpsLimit;
import net.minecraft.client.Minecraft;
import net.minecraft.client.Options;

@Environment(EnvType.CLIENT)
public class FramerateLimitTracker {
	private static final int OUT_OF_LEVEL_MENU_LIMIT = 60;
	private static final int ICONIFIED_WINDOW_LIMIT = 10;
	private static final int AFK_LIMIT = 30;
	private static final int LONG_AFK_LIMIT = 10;
	private static final long AFK_THRESHOLD_MS = 60000L;
	private static final long LONG_AFK_THRESHOLD_MS = 600000L;
	private final Options options;
	private final Minecraft minecraft;
	private int framerateLimit;
	private long latestInputTime;

	public FramerateLimitTracker(Options options, Minecraft minecraft) {
		this.options = options;
		this.minecraft = minecraft;
		this.framerateLimit = options.framerateLimit().get();
	}

	public int getFramerateLimit() {
		InactivityFpsLimit inactivityFpsLimit = this.options.inactivityFpsLimit().get();
		if (this.minecraft.getWindow().isIconified()) {
			return 10;
		} else {
			if (inactivityFpsLimit == InactivityFpsLimit.AFK) {
				long l = Util.getMillis() - this.latestInputTime;
				if (l > 600000L) {
					return 10;
				}

				if (l > 60000L) {
					return Math.min(this.framerateLimit, 30);
				}
			}

			return this.minecraft.level != null || this.minecraft.screen == null && this.minecraft.getOverlay() == null ? this.framerateLimit : 60;
		}
	}

	public void setFramerateLimit(int i) {
		this.framerateLimit = i;
	}

	public void onInputReceived() {
		this.latestInputTime = Util.getMillis();
	}
}