/*
 * 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 android.app;

import static com.android.internal.util.NotificationColorUtil.satisfiesTextContrast;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;

import android.content.Context;
import android.content.Intent;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Icon;
import android.media.session.MediaSession;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
import android.support.test.InstrumentationRegistry;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;
import android.widget.RemoteViews;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(AndroidJUnit4.class)
@SmallTest
public class NotificationTest {

    private Context mContext;

    @Before
    public void setUp() {
        mContext = InstrumentationRegistry.getContext();
    }

    @Test
    public void testColorizedByPermission() {
        Notification n = new Notification.Builder(mContext, "test")
                .setFlag(Notification.FLAG_CAN_COLORIZE, true)
                .setColorized(true)
                .build();
        assertTrue(n.isColorized());

        n = new Notification.Builder(mContext, "test")
                .setFlag(Notification.FLAG_CAN_COLORIZE, true)
                .build();
        assertFalse(n.isColorized());

        n = new Notification.Builder(mContext, "test")
                .setFlag(Notification.FLAG_CAN_COLORIZE, false)
                .setColorized(true)
                .build();
        assertFalse(n.isColorized());
    }

    @Test
    public void testColorizedByForeground() {
        Notification n = new Notification.Builder(mContext, "test")
                .setFlag(Notification.FLAG_FOREGROUND_SERVICE, true)
                .setColorized(true)
                .build();
        assertTrue(n.isColorized());

        n = new Notification.Builder(mContext, "test")
                .setFlag(Notification.FLAG_FOREGROUND_SERVICE, true)
                .build();
        assertFalse(n.isColorized());

        n = new Notification.Builder(mContext, "test")
                .setFlag(Notification.FLAG_FOREGROUND_SERVICE, false)
                .setColorized(true)
                .build();
        assertFalse(n.isColorized());
    }

    @Test
    public void testColorSatisfiedWhenBgDarkTextDarker() {
        Notification.Builder builder = getMediaNotification();
        Notification n = builder.build();

        assertTrue(n.isColorized());

        // An initial guess where the foreground color is actually darker than an already dark bg
        int backgroundColor = 0xff585868;
        int initialForegroundColor = 0xff505868;
        builder.setColorPalette(backgroundColor, initialForegroundColor);
        int primaryTextColor = builder.getPrimaryTextColor();
        assertTrue(satisfiesTextContrast(primaryTextColor, backgroundColor));
        int secondaryTextColor = builder.getSecondaryTextColor();
        assertTrue(satisfiesTextContrast(secondaryTextColor, backgroundColor));
    }

    @Test
    public void testHasCompletedProgress_noProgress() {
        Notification n = new Notification.Builder(mContext).build();

        assertFalse(n.hasCompletedProgress());
    }

    @Test
    public void testHasCompletedProgress_complete() {
        Notification n = new Notification.Builder(mContext)
                .setProgress(100, 100, true)
                .build();
        Notification n2 = new Notification.Builder(mContext)
                .setProgress(10, 10, false)
                .build();
        assertTrue(n.hasCompletedProgress());
        assertTrue(n2.hasCompletedProgress());
    }

    @Test
    public void testHasCompletedProgress_notComplete() {
        Notification n = new Notification.Builder(mContext)
                .setProgress(100, 99, true)
                .build();
        Notification n2 = new Notification.Builder(mContext)
                .setProgress(10, 4, false)
                .build();
        assertFalse(n.hasCompletedProgress());
        assertFalse(n2.hasCompletedProgress());
    }

    @Test
    public void testHasCompletedProgress_zeroMax() {
        Notification n = new Notification.Builder(mContext)
                .setProgress(0, 0, true)
                .build();
        assertFalse(n.hasCompletedProgress());
    }

    @Test
    public void largeIconMultipleReferences_keptAfterParcelling() {
        Icon originalIcon = Icon.createWithBitmap(BitmapFactory.decodeResource(
                mContext.getResources(), com.android.frameworks.coretests.R.drawable.test128x96));

        Notification n = new Notification.Builder(mContext).setLargeIcon(originalIcon).build();
        assertSame(n.getLargeIcon(), originalIcon);

        Notification q = writeAndReadParcelable(n);
        assertNotSame(q.getLargeIcon(), n.getLargeIcon());

        assertTrue(q.getLargeIcon().getBitmap().sameAs(n.getLargeIcon().getBitmap()));
        assertSame(q.getLargeIcon(), q.extras.getParcelable(Notification.EXTRA_LARGE_ICON));
    }

    @Test
    public void largeIconReferenceInExtrasOnly_keptAfterParcelling() {
        Icon originalIcon = Icon.createWithBitmap(BitmapFactory.decodeResource(
                mContext.getResources(), com.android.frameworks.coretests.R.drawable.test128x96));

        Notification n = new Notification.Builder(mContext).build();
        n.extras.putParcelable(Notification.EXTRA_LARGE_ICON, originalIcon);
        assertSame(n.getLargeIcon(), null);

        Notification q = writeAndReadParcelable(n);
        assertSame(q.getLargeIcon(), null);
        assertTrue(((Icon) q.extras.getParcelable(Notification.EXTRA_LARGE_ICON)).getBitmap()
                .sameAs(originalIcon.getBitmap()));
    }

    @Test
    public void allPendingIntents_recollectedAfterReusingBuilder() {
        PendingIntent intent1 = PendingIntent.getActivity(mContext, 0, new Intent("test1"), 0);
        PendingIntent intent2 = PendingIntent.getActivity(mContext, 0, new Intent("test2"), 0);

        Notification.Builder builder = new Notification.Builder(mContext, "channel");
        builder.setContentIntent(intent1);

        Parcel p = Parcel.obtain();

        Notification n1 = builder.build();
        n1.writeToParcel(p, 0);

        builder.setContentIntent(intent2);
        Notification n2 = builder.build();
        n2.writeToParcel(p, 0);

        assertTrue(n2.allPendingIntents.contains(intent2));
    }

    @Test
    public void allPendingIntents_containsCustomRemoteViews() {
        PendingIntent intent = PendingIntent.getActivity(mContext, 0, new Intent("test"), 0);

        RemoteViews contentView = new RemoteViews(mContext.getPackageName(), 0 /* layoutId */);
        contentView.setOnClickPendingIntent(1 /* id */, intent);

        Notification.Builder builder = new Notification.Builder(mContext, "channel");
        builder.setCustomContentView(contentView);

        Parcel p = Parcel.obtain();

        Notification n = builder.build();
        n.writeToParcel(p, 0);

        assertTrue(n.allPendingIntents.contains(intent));
    }

    @Test
    public void messagingStyle_isGroupConversation() {
        mContext.getApplicationInfo().targetSdkVersion = Build.VERSION_CODES.P;
        Notification.MessagingStyle messagingStyle = new Notification.MessagingStyle("self name")
                .setGroupConversation(true)
                .setConversationTitle("test conversation title");
        Notification notification = new Notification.Builder(mContext, "test id")
                .setSmallIcon(1)
                .setContentTitle("test title")
                .setStyle(messagingStyle)
                .build();

        assertTrue(messagingStyle.isGroupConversation());
        assertTrue(notification.extras.getBoolean(Notification.EXTRA_IS_GROUP_CONVERSATION));
    }

    @Test
    public void messagingStyle_isGroupConversation_noConversationTitle() {
        mContext.getApplicationInfo().targetSdkVersion = Build.VERSION_CODES.P;
        Notification.MessagingStyle messagingStyle = new Notification.MessagingStyle("self name")
                .setGroupConversation(true)
                .setConversationTitle(null);
        Notification notification = new Notification.Builder(mContext, "test id")
                .setSmallIcon(1)
                .setContentTitle("test title")
                .setStyle(messagingStyle)
                .build();

        assertTrue(messagingStyle.isGroupConversation());
        assertTrue(notification.extras.getBoolean(Notification.EXTRA_IS_GROUP_CONVERSATION));
    }

    @Test
    public void messagingStyle_isGroupConversation_withConversationTitle_legacy() {
        // In legacy (version < P), isGroupConversation is controlled by conversationTitle.
        mContext.getApplicationInfo().targetSdkVersion = Build.VERSION_CODES.O;
        Notification.MessagingStyle messagingStyle = new Notification.MessagingStyle("self name")
                .setGroupConversation(false)
                .setConversationTitle("test conversation title");
        Notification notification = new Notification.Builder(mContext, "test id")
                .setSmallIcon(1)
                .setContentTitle("test title")
                .setStyle(messagingStyle)
                .build();

        assertTrue(messagingStyle.isGroupConversation());
        assertFalse(notification.extras.getBoolean(Notification.EXTRA_IS_GROUP_CONVERSATION));
    }

    @Test
    public void messagingStyle_isGroupConversation_withoutConversationTitle_legacy() {
        // In legacy (version < P), isGroupConversation is controlled by conversationTitle.
        mContext.getApplicationInfo().targetSdkVersion = Build.VERSION_CODES.O;
        Notification.MessagingStyle messagingStyle = new Notification.MessagingStyle("self name")
                .setGroupConversation(true)
                .setConversationTitle(null);
        Notification notification = new Notification.Builder(mContext, "test id")
                .setSmallIcon(1)
                .setContentTitle("test title")
                .setStyle(messagingStyle)
                .build();

        assertFalse(messagingStyle.isGroupConversation());
        assertTrue(notification.extras.getBoolean(Notification.EXTRA_IS_GROUP_CONVERSATION));
    }

    private Notification.Builder getMediaNotification() {
        MediaSession session = new MediaSession(mContext, "test");
        return new Notification.Builder(mContext, "color")
                .setSmallIcon(com.android.internal.R.drawable.emergency_icon)
                .setContentTitle("Title")
                .setContentText("Text")
                .setStyle(new Notification.MediaStyle().setMediaSession(session.getSessionToken()));
    }

    /**
      * Writes an arbitrary {@link Parcelable} into a {@link Parcel} using its writeToParcel
      * method before reading it out again to check that it was sent properly.
      */
    private static <T extends Parcelable> T writeAndReadParcelable(T original) {
        Parcel p = Parcel.obtain();
        p.writeParcelable(original, /* flags */ 0);
        p.setDataPosition(0);
        return p.readParcelable(/* classLoader */ null);
    }
}