package net.minecraft.client.tutorial;

import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.components.toasts.TutorialToast;
import net.minecraft.client.player.ClientInput;
import net.minecraft.network.chat.Component;
import org.jetbrains.annotations.Nullable;

@Environment(EnvType.CLIENT)
public class MovementTutorialStepInstance implements TutorialStepInstance {
	private static final int MINIMUM_TIME_MOVED = 40;
	private static final int MINIMUM_TIME_LOOKED = 40;
	private static final int MOVE_HINT_DELAY = 100;
	private static final int LOOK_HINT_DELAY = 20;
	private static final int INCOMPLETE = -1;
	private static final Component MOVE_TITLE = Component.translatable(
		"tutorial.move.title", Tutorial.key("forward"), Tutorial.key("left"), Tutorial.key("back"), Tutorial.key("right")
	);
	private static final Component MOVE_DESCRIPTION = Component.translatable("tutorial.move.description", Tutorial.key("jump"));
	private static final Component LOOK_TITLE = Component.translatable("tutorial.look.title");
	private static final Component LOOK_DESCRIPTION = Component.translatable("tutorial.look.description");
	private final Tutorial tutorial;
	@Nullable
	private TutorialToast moveToast;
	@Nullable
	private TutorialToast lookToast;
	private int timeWaiting;
	private int timeMoved;
	private int timeLooked;
	private boolean moved;
	private boolean turned;
	private int moveCompleted = -1;
	private int lookCompleted = -1;

	public MovementTutorialStepInstance(Tutorial tutorial) {
		this.tutorial = tutorial;
	}

	@Override
	public void tick() {
		this.timeWaiting++;
		if (this.moved) {
			this.timeMoved++;
			this.moved = false;
		}

		if (this.turned) {
			this.timeLooked++;
			this.turned = false;
		}

		if (this.moveCompleted == -1 && this.timeMoved > 40) {
			if (this.moveToast != null) {
				this.moveToast.hide();
				this.moveToast = null;
			}

			this.moveCompleted = this.timeWaiting;
		}

		if (this.lookCompleted == -1 && this.timeLooked > 40) {
			if (this.lookToast != null) {
				this.lookToast.hide();
				this.lookToast = null;
			}

			this.lookCompleted = this.timeWaiting;
		}

		if (this.moveCompleted != -1 && this.lookCompleted != -1) {
			if (this.tutorial.isSurvival()) {
				this.tutorial.setStep(TutorialSteps.FIND_TREE);
			} else {
				this.tutorial.setStep(TutorialSteps.NONE);
			}
		}

		if (this.moveToast != null) {
			this.moveToast.updateProgress(this.timeMoved / 40.0F);
		}

		if (this.lookToast != null) {
			this.lookToast.updateProgress(this.timeLooked / 40.0F);
		}

		if (this.timeWaiting >= 100) {
			Minecraft minecraft = this.tutorial.getMinecraft();
			if (this.moveCompleted == -1 && this.moveToast == null) {
				this.moveToast = new TutorialToast(minecraft.font, TutorialToast.Icons.MOVEMENT_KEYS, MOVE_TITLE, MOVE_DESCRIPTION, true);
				minecraft.getToastManager().addToast(this.moveToast);
			} else if (this.moveCompleted != -1 && this.timeWaiting - this.moveCompleted >= 20 && this.lookCompleted == -1 && this.lookToast == null) {
				this.lookToast = new TutorialToast(minecraft.font, TutorialToast.Icons.MOUSE, LOOK_TITLE, LOOK_DESCRIPTION, true);
				minecraft.getToastManager().addToast(this.lookToast);
			}
		}
	}

	@Override
	public void clear() {
		if (this.moveToast != null) {
			this.moveToast.hide();
			this.moveToast = null;
		}

		if (this.lookToast != null) {
			this.lookToast.hide();
			this.lookToast = null;
		}
	}

	@Override
	public void onInput(ClientInput input) {
		if (input.keyPresses.forward() || input.keyPresses.backward() || input.keyPresses.left() || input.keyPresses.right() || input.keyPresses.jump()) {
			this.moved = true;
		}
	}

	@Override
	public void onMouse(double velocityX, double velocityY) {
		if (Math.abs(velocityX) > 0.01 || Math.abs(velocityY) > 0.01) {
			this.turned = true;
		}
	}
}