/*
 * 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.android.systemui.volume;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import android.content.Context;
import android.media.AudioManager;
import android.media.session.MediaSession;
import android.support.test.filters.SmallTest;
import com.android.systemui.SysuiTestCase;
import com.android.systemui.keyguard.WakefulnessLifecycle;
import com.android.systemui.statusbar.phone.StatusBar;

import org.junit.Before;
import org.junit.Test;

@SmallTest
public class VolumeDialogControllerImplTest extends SysuiTestCase {

    TestableVolumeDialogControllerImpl mVolumeController;
    VolumeDialogControllerImpl.C mCallback;
    StatusBar mStatusBar;

    @Before
    public void setup() throws Exception {
        mCallback = mock(VolumeDialogControllerImpl.C.class);
        mStatusBar = mock(StatusBar.class);
        mVolumeController = new TestableVolumeDialogControllerImpl(mContext, mCallback, mStatusBar);
        mVolumeController.setEnableDialogs(true, true);
    }

    @Test
    public void testVolumeChangeW_deviceNotInteractiveAOD() {
        when(mStatusBar.isDeviceInteractive()).thenReturn(false);
        when(mStatusBar.getWakefulnessState()).thenReturn(WakefulnessLifecycle.WAKEFULNESS_AWAKE);
        mVolumeController.onVolumeChangedW(0, AudioManager.FLAG_SHOW_UI);
        verify(mCallback, never()).onShowRequested(Events.SHOW_REASON_VOLUME_CHANGED);
    }

    @Test
    public void testVolumeChangeW_deviceInteractive() {
        when(mStatusBar.isDeviceInteractive()).thenReturn(true);
        when(mStatusBar.getWakefulnessState()).thenReturn(WakefulnessLifecycle.WAKEFULNESS_AWAKE);
        mVolumeController.onVolumeChangedW(0, AudioManager.FLAG_SHOW_UI);
        verify(mCallback, times(1)).onShowRequested(Events.SHOW_REASON_VOLUME_CHANGED);
    }

    @Test
    public void testVolumeChangeW_deviceInteractive_StartedSleeping() {
        when(mStatusBar.isDeviceInteractive()).thenReturn(true);
        when(mStatusBar.getWakefulnessState()).thenReturn(WakefulnessLifecycle.WAKEFULNESS_AWAKE);
        mVolumeController.onVolumeChangedW(0, AudioManager.FLAG_SHOW_UI);
        when(mStatusBar.isDeviceInteractive()).thenReturn(false);
        when(mStatusBar.getWakefulnessState()).thenReturn(WakefulnessLifecycle.WAKEFULNESS_GOING_TO_SLEEP);
        mVolumeController.onVolumeChangedW(0, AudioManager.FLAG_SHOW_UI);
        verify(mCallback, times(1)).onShowRequested(Events.SHOW_REASON_VOLUME_CHANGED);
    }

    @Test
    public void testVolumeChangeW_nullStatusBar() {
        VolumeDialogControllerImpl.C callback = mock(VolumeDialogControllerImpl.C.class);
        TestableVolumeDialogControllerImpl nullStatusBarTestableDialog =  new
                TestableVolumeDialogControllerImpl(mContext, callback, null);
        nullStatusBarTestableDialog.setEnableDialogs(true, true);
        nullStatusBarTestableDialog.onVolumeChangedW(0, AudioManager.FLAG_SHOW_UI);
        verify(callback, times(1)).onShowRequested(Events.SHOW_REASON_VOLUME_CHANGED);
    }

    @Test
    public void testOnRemoteVolumeChanged_newStream_noNullPointer() {
        MediaSession.Token token = new MediaSession.Token(null);
        mVolumeController.mMediaSessionsCallbacksW.onRemoteVolumeChanged(token, 0);
    }

    @Test
    public void testOnRemoteRemove_newStream_noNullPointer() {
        MediaSession.Token token = new MediaSession.Token(null);
        mVolumeController.mMediaSessionsCallbacksW.onRemoteRemoved(token);
    }

    static class TestableVolumeDialogControllerImpl extends VolumeDialogControllerImpl {
        public TestableVolumeDialogControllerImpl(Context context, C callback, StatusBar s) {
            super(context);
            mCallbacks = callback;
            mStatusBar = s;
        }
    }

}