/**
 * Copyright (C) 2013 - 2015 the enviroCar community
 *
 * This file is part of the enviroCar app.
 *
 * The enviroCar app is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * The enviroCar app 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 General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with the enviroCar app. If not, see http://www.gnu.org/licenses/.
 */
package org.envirocar.app.view.utils;


import android.animation.ValueAnimator;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;

import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Action0;

/**
 * TODO JavaDoc
 *
 * @author dewall
 */
public class ECAnimationUtils {

    public static void animateShowView(Context context, View view, int animResource) {
        AndroidSchedulers.mainThread().createWorker().schedule(() -> {
            // Check whether the view is already visible and return in that case
            if (view.getVisibility() == View.VISIBLE)
                return;

            Animation animation = AnimationUtils.loadAnimation(context, animResource);
            view.setVisibility(View.VISIBLE);
            view.startAnimation(animation);
        });
    }

    /**
     * Applies an animation on the given view in order hide it.
     *
     * @param context      the context of the current scope
     * @param view         the view to apply the animation on.
     * @param animResource the animation resource.
     */
    public static void animateHideView(Context context, View view, int animResource) {
        animateHideView(context, view, animResource, null);
    }

    public static void animateHideView(Context context, int animResource, View... views) {
        for (View view : views) {
            animateHideView(context, view, animResource, null);
        }
    }

    /**
     * Applies an animation on the given view in order hide it.
     *
     * @param context      the context of the current scope
     * @param view         the view to apply the animation on.
     * @param animResource the animation resource.
     * @param action       the action that should happen when the animation is finished.
     */
    public static void animateHideView(Context context, final View view, int animResource,
                                       final Action0 action) {
        AndroidSchedulers.mainThread().createWorker().schedule(() -> {
            Animation animation = AnimationUtils.loadAnimation(context, animResource);
            animation.setFillAfter(true);

            animation.setAnimationListener(new Animation.AnimationListener() {
                @Override
                public void onAnimationStart(Animation animation) {
                    // nothing to do..
                }

                @Override
                public void onAnimationEnd(Animation animation) {
                    view.setVisibility(View.GONE);
                    if (action != null) {
                        action.call();
                    }
                }

                @Override
                public void onAnimationRepeat(Animation animation) {
                    // nothing to do..
                }
            });

            view.startAnimation(animation);
        });
    }

    /**
     * Expands the view to a specific height.
     *
     * @param view   the view to expand to a given height.
     * @param height
     */
    public static void expandView(View view, int height) {
        ValueAnimator animator = ValueAnimator.ofInt(view.getLayoutParams().height, height);

        animator.addUpdateListener(animation -> {
            int value = (Integer) animation.getAnimatedValue();
            ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
            layoutParams.height = value;
            view.setLayoutParams(layoutParams);
        });

        animator.setDuration(600);
        animator.start();
    }

    /**
     * Compresses the view down to a specific height.
     *
     * @param view   the view to compress to a different height.
     * @param height the height to the view should have after compression.
     */
    public static void compressView(View view, int height) {
        // Create an ValueAnimator for the height-based animation
        ValueAnimator animator = ValueAnimator.ofInt(view.getLayoutParams().height, height);

        animator.addUpdateListener(animation -> {
            int value = (Integer) animation.getAnimatedValue();
            ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
            layoutParams.height = value;
            view.setLayoutParams(layoutParams);
        });

        animator.setDuration(600);
        animator.start();
    }
}