/*
 * Copyright (C) 2023 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.android.systemui.screenshot

import android.media.MediaActionSound
import android.media.MediaPlayer
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.SmallTest
import com.android.systemui.SysuiTestCase
import com.android.systemui.shared.settings.data.repository.FakeSystemSettingsRepository
import java.lang.IllegalStateException
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.test.TestScope
import kotlinx.coroutines.test.UnconfinedTestDispatcher
import kotlinx.coroutines.test.advanceUntilIdle
import kotlinx.coroutines.test.runTest
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.Mockito.never
import org.mockito.Mockito.verify
import org.mockito.kotlin.any
import org.mockito.kotlin.mock
import org.mockito.kotlin.whenever

@SmallTest
@OptIn(ExperimentalCoroutinesApi::class)
@RunWith(AndroidJUnit4::class)
class ScreenshotSoundControllerTest : SysuiTestCase() {

    private val soundProvider = mock<ScreenshotSoundProvider>()
    private val mediaPlayer = mock<MediaPlayer>()
    private val mediaActionSound = mock<MediaActionSound>()
    private val soundPolicy = mock<ScreenshotSoundPolicy>()
    private val bgDispatcher = UnconfinedTestDispatcher()
    private val scope = TestScope(bgDispatcher)
    private val fakeSystemSettingsRepo = FakeSystemSettingsRepository()

    @Before
    fun setup() {
        whenever(soundProvider.getScreenshotSound()).thenReturn(mediaPlayer)
        whenever(soundProvider.getForcedShutterSound()).thenReturn(mediaActionSound)
        whenever(soundPolicy.shouldForceShutterSound()).thenReturn(false) // default
    }

    @Test
    fun init_soundLoading() {
        createController()
        scope.advanceUntilIdle()

        verify(soundProvider).getScreenshotSound()
        verify(soundProvider).getForcedShutterSound()
    }

    @Test
    fun init_soundLoadingException_playAndReleaseDoNotThrow() =
        scope.runTest {
            whenever(soundProvider.getScreenshotSound()).thenThrow(IllegalStateException())

            val controller = createController()

            controller.playScreenshotSound()
            advanceUntilIdle()

            verify(mediaPlayer, never()).start()
            verify(mediaPlayer, never()).release()
        }

    @Test
    fun playCameraSound_soundLoadingSuccessful_mediaPlayerPlays() =
        scope.runTest {
            val controller = createController()

            controller.playScreenshotSound()
            advanceUntilIdle()

            verify(mediaPlayer).start()
            verify(mediaActionSound, never()).play(any())
        }

    @Test
    fun playCameraSound_illegalStateException_doesNotThrow() =
        scope.runTest {
            whenever(mediaPlayer.start()).thenThrow(IllegalStateException())

            val controller = createController()
            controller.playScreenshotSound()
            advanceUntilIdle()

            verify(mediaPlayer).start()
            verify(mediaPlayer).release()
            verify(mediaActionSound).release()
        }

    @Test
    fun playCameraSound_soundLoadingSuccessful_mediaPlayerReleases() =
        scope.runTest {
            val controller = createController()

            controller.releaseScreenshotSound()
            advanceUntilIdle()

            verify(mediaPlayer).release()
            verify(mediaActionSound).release()
        }

    @Test
    fun screenshotSoundForced_usesShutterSound() {
        scope.runTest {
            whenever(soundPolicy.shouldForceShutterSound()).thenReturn(true)
            val controller = createController()

            controller.playScreenshotSound()
            advanceUntilIdle()

            verify(mediaPlayer, never()).start()
            verify(mediaActionSound).play(MediaActionSound.SHUTTER_CLICK)
        }
    }

    private fun createController() =
        ScreenshotSoundControllerImpl(soundProvider, soundPolicy, fakeSystemSettingsRepo, scope, bgDispatcher)
}