/*
 * Catroid: An on-device visual programming system for Android devices
 * Copyright (C) 2010-2016 The Catrobat Team
 * (<http://developer.catrobat.org/credits>)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * An additional term exception under section 7 of the GNU Affero
 * General Public License, version 3, is available at
 * http://developer.catrobat.org/license_additional_term
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.catrobat.catroid.content.actions;

import android.util.Log;

import org.catrobat.catroid.content.Sprite;
import org.catrobat.catroid.formulaeditor.Formula;
import org.catrobat.catroid.formulaeditor.InterpretationException;

public class RepeatAction extends com.badlogic.gdx.scenes.scene2d.actions.RepeatAction {

	private int executedCount;
	private Formula repeatCount;
	private Sprite sprite;
	private boolean isCurrentLoopInitialized = false;
	private boolean isRepeatActionInitialized = false;
	private int repeatCountValue;
	private static final float LOOP_DELAY = 0.02f;
	private float currentTime = 0f;
	private boolean isForeverRepeat = false;

	@Override
	public boolean delegate(float delta) {

		if (!isRepeatActionInitialized) {
			isRepeatActionInitialized = true;
			try {
				Double interpretation = repeatCount == null ? Double.valueOf(0d) : repeatCount.interpretDouble(sprite);
				repeatCountValue = interpretation.intValue();
			} catch (InterpretationException interpretationException) {
				repeatCountValue = 0;
				Log.d(getClass().getSimpleName(), "Formula interpretation for this specific Brick failed.", interpretationException);
			}
		}

		if (!isCurrentLoopInitialized) {
			currentTime = 0f;
			isCurrentLoopInitialized = true;
		}

		currentTime += delta;

		if (repeatCountValue < 0) {
			repeatCountValue = 0;
		}
		if (executedCount >= repeatCountValue && !isForeverRepeat) {
			return true;
		}
		if (action.act(delta) && currentTime >= LOOP_DELAY) {

			executedCount++;
			if (executedCount >= repeatCountValue && !isForeverRepeat) {
				return true;
			}
			isCurrentLoopInitialized = false;
			if (action != null) {
				action.restart();
			}
		}
		return false;
	}

	@Override
	public void restart() {
		isCurrentLoopInitialized = false;
		isRepeatActionInitialized = false;
		executedCount = 0;
		super.restart();
	}

	public void setRepeatCount(Formula repeatCount) {
		this.repeatCount = repeatCount;
	}

	public void setSprite(Sprite sprite) {
		this.sprite = sprite;
	}

	public void setIsForeverRepeat(boolean isForeverRepeat) {
		this.isForeverRepeat = isForeverRepeat;
	}
}