/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.gh.gamecenter.core.utils

import android.animation.Animator
import androidx.annotation.RequiresApi
import android.view.ViewPropertyAnimator

/**
 * Since [Android KTX] has not release a stable build yet,
 * we copy a single class to achieve the same goal.
 *
 * You might check the original extension class in the link below.
 *
 * https://github.com/android/android-ktx/blob/master/src/main/java/androidx/core/animation/Animator.kt.
 */

/**
 * Add an action which will be invoked when the animation has ended.
 *
 * @return the [Animator.AnimatorListener] added to the Animator
 * @see Animator.end
 */
fun Animator.doOnEnd(action: (animator: Animator) -> Unit) = addListener(onEnd = action)

/**
 * Add an action which will be invoked when the animation has started.
 *
 * @return the [Animator.AnimatorListener] added to the Animator
 * @see Animator.start
 */
fun Animator.doOnStart(action: (animator: Animator) -> Unit) = addListener(onStart = action)

/**
 * Add an action which will be invoked when the animation has been cancelled.
 *
 * @return the [Animator.AnimatorListener] added to the Animator
 * @see Animator.cancel
 */
fun Animator.doOnCancel(action: (animator: Animator) -> Unit) = addListener(onCancel = action)

/**
 * Add an action which will be invoked when the animation has repeated.
 * @return the [Animator.AnimatorListener] added to the Animator
 */
fun Animator.doOnRepeat(action: (animator: Animator) -> Unit) = addListener(onRepeat = action)

/**
 * Add an action which will be invoked when the animation has resumed after a pause.
 *
 * @return the [Animator.AnimatorPauseListener] added to the Animator
 * @see Animator.resume
 */
@RequiresApi(19)
fun Animator.doOnResume(action: (animator: Animator) -> Unit) = addPauseListener(onResume = action)

/**
 * Add an action which will be invoked when the animation has been paused.
 *
 * @return the [Animator.AnimatorPauseListener] added to the Animator
 * @see Animator.pause
 */
@RequiresApi(19)
fun Animator.doOnPause(action: (animator: Animator) -> Unit) = addPauseListener(onPause = action)

/**
 * Add a listener to this Animator using the provided actions.
 */
fun Animator.addListener(
    onEnd: ((animator: Animator) -> Unit)? = null,
    onStart: ((animator: Animator) -> Unit)? = null,
    onCancel: ((animator: Animator) -> Unit)? = null,
    onRepeat: ((animator: Animator) -> Unit)? = null
): Animator.AnimatorListener {
    val listener = object : Animator.AnimatorListener {
        override fun onAnimationRepeat(animator: Animator) {
            onRepeat?.invoke(animator)
        }

        override fun onAnimationEnd(animator: Animator) {
            onEnd?.invoke(animator)
        }

        override fun onAnimationCancel(animator: Animator) {
            onCancel?.invoke(animator)
        }

        override fun onAnimationStart(animator: Animator) {
            onStart?.invoke(animator)
        }
    }
    addListener(listener)
    return listener
}

/**
 * Add a pause and resume listener to this Animator using the provided actions.
 */
@RequiresApi(19)
fun Animator.addPauseListener(
    onResume: ((animator: Animator) -> Unit)? = null,
    onPause: ((animator: Animator) -> Unit)? = null
): Animator.AnimatorPauseListener {
    val listener = object : Animator.AnimatorPauseListener {
        override fun onAnimationPause(animator: Animator) {
            onPause?.invoke(animator)
        }

        override fun onAnimationResume(animator: Animator) {
            onResume?.invoke(animator)
        }
    }
    addPauseListener(listener)
    return listener
}

fun ViewPropertyAnimator.doOnEnd(onEnd: ((animator: Animator?) -> Unit)? = null): ViewPropertyAnimator {
    val listener = object : Animator.AnimatorListener {
        override fun onAnimationRepeat(animation: Animator) {

        }

        override fun onAnimationEnd(animation: Animator) {
            onEnd?.invoke(animation)
        }

        override fun onAnimationCancel(animation: Animator) {

        }

        override fun onAnimationStart(animation: Animator) {

        }
    }
    this.setListener(listener)
    return this
}