/*
 * Copyright (C) 2020 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.statusbar.notification.row;

import static android.app.Notification.FLAG_BUBBLE;
import static android.app.NotificationManager.IMPORTANCE_DEFAULT;
import static android.app.NotificationManager.IMPORTANCE_HIGH;

import static com.android.systemui.statusbar.NotificationEntryHelper.modifyRanking;

import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

import android.annotation.Nullable;
import android.app.ActivityManager;
import android.app.Notification;
import android.app.Notification.BubbleMetadata;
import android.app.NotificationChannel;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.pm.LauncherApps;
import android.graphics.drawable.Icon;
import android.os.UserHandle;
import android.service.notification.StatusBarNotification;
import android.testing.TestableLooper;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.widget.RemoteViews;

import com.android.systemui.TestableDependency;
import com.android.systemui.bubbles.BubbleController;
import com.android.systemui.bubbles.BubblesTestActivity;
import com.android.systemui.plugins.FalsingManager;
import com.android.systemui.plugins.statusbar.StatusBarStateController;
import com.android.systemui.statusbar.NotificationMediaManager;
import com.android.systemui.statusbar.NotificationRemoteInputManager;
import com.android.systemui.statusbar.SmartReplyController;
import com.android.systemui.statusbar.notification.ConversationNotificationProcessor;
import com.android.systemui.statusbar.notification.collection.NotificationEntry;
import com.android.systemui.statusbar.notification.collection.NotificationEntryBuilder;
import com.android.systemui.statusbar.notification.collection.notifcollection.CommonNotifCollection;
import com.android.systemui.statusbar.notification.collection.notifcollection.NotifCollectionListener;
import com.android.systemui.statusbar.notification.icon.IconBuilder;
import com.android.systemui.statusbar.notification.icon.IconManager;
import com.android.systemui.statusbar.notification.people.PeopleNotificationIdentifier;
import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow.ExpansionLogger;
import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow.OnExpandClickListener;
import com.android.systemui.statusbar.notification.row.NotificationRowContentBinder.InflationFlag;
import com.android.systemui.statusbar.phone.ConfigurationControllerImpl;
import com.android.systemui.statusbar.phone.HeadsUpManagerPhone;
import com.android.systemui.statusbar.phone.KeyguardBypassController;
import com.android.systemui.statusbar.phone.NotificationGroupManager;
import com.android.systemui.statusbar.phone.NotificationShadeWindowController;
import com.android.systemui.statusbar.policy.SmartReplyConstants;
import com.android.systemui.tests.R;

import org.mockito.ArgumentCaptor;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;

/**
 * A helper class to create {@link ExpandableNotificationRow} (for both individual and group
 * notifications).
 */
public class NotificationTestHelper {

    /** Package name for testing purposes. */
    public static final String PKG = "com.android.systemui";
    /** System UI id for testing purposes. */
    public static final int UID = 1000;
    /** Current {@link UserHandle} of the system. */
    public static final UserHandle USER_HANDLE = UserHandle.of(ActivityManager.getCurrentUser());

    private static final String GROUP_KEY = "gruKey";
    private static final String APP_NAME = "appName";

    private final Context mContext;
    private final TestableLooper mTestLooper;
    private int mId;
    private final NotificationGroupManager mGroupManager;
    private ExpandableNotificationRow mRow;
    private HeadsUpManagerPhone mHeadsUpManager;
    private final NotifBindPipeline mBindPipeline;
    private final NotifCollectionListener mBindPipelineEntryListener;
    private final RowContentBindStage mBindStage;
    private final IconManager mIconManager;
    private StatusBarStateController mStatusBarStateController;
    private final PeopleNotificationIdentifier mPeopleNotificationIdentifier;

    public NotificationTestHelper(
            Context context,
            TestableDependency dependency,
            TestableLooper testLooper) {
        mContext = context;
        mTestLooper = testLooper;
        dependency.injectMockDependency(NotificationMediaManager.class);
        dependency.injectMockDependency(BubbleController.class);
        dependency.injectMockDependency(NotificationShadeWindowController.class);
        mStatusBarStateController = mock(StatusBarStateController.class);
        mGroupManager = new NotificationGroupManager(mStatusBarStateController);
        mHeadsUpManager = new HeadsUpManagerPhone(mContext, mStatusBarStateController,
                mock(KeyguardBypassController.class), mock(NotificationGroupManager.class),
                mock(ConfigurationControllerImpl.class));
        mGroupManager.setHeadsUpManager(mHeadsUpManager);
        mIconManager = new IconManager(
                mock(CommonNotifCollection.class),
                mock(LauncherApps.class),
                new IconBuilder(mContext));

        NotificationContentInflater contentBinder = new NotificationContentInflater(
                mock(NotifRemoteViewCache.class),
                mock(NotificationRemoteInputManager.class),
                () -> mock(SmartReplyConstants.class),
                () -> mock(SmartReplyController.class),
                mock(ConversationNotificationProcessor.class),
                mock(Executor.class));
        contentBinder.setInflateSynchronously(true);
        mBindStage = new RowContentBindStage(contentBinder,
                mock(NotifInflationErrorManager.class),
                mock(RowContentBindStageLogger.class));

        CommonNotifCollection collection = mock(CommonNotifCollection.class);

        mBindPipeline = new NotifBindPipeline(
                collection,
                mock(NotifBindPipelineLogger.class),
                mTestLooper.getLooper());
        mBindPipeline.setStage(mBindStage);

        ArgumentCaptor<NotifCollectionListener> collectionListenerCaptor =
                ArgumentCaptor.forClass(NotifCollectionListener.class);
        verify(collection).addCollectionListener(collectionListenerCaptor.capture());
        mBindPipelineEntryListener = collectionListenerCaptor.getValue();
        mPeopleNotificationIdentifier = mock(PeopleNotificationIdentifier.class);
    }

    /**
     * Creates a generic row.
     *
     * @return a generic row with no special properties.
     * @throws Exception
     */
    public ExpandableNotificationRow createRow() throws Exception {
        return createRow(PKG, UID, USER_HANDLE);
    }

    /**
     * Create a row with the package and user id specified.
     *
     * @param pkg package
     * @param uid user id
     * @return a row with a notification using the package and user id
     * @throws Exception
     */
    public ExpandableNotificationRow createRow(String pkg, int uid, UserHandle userHandle)
            throws Exception {
        return createRow(pkg, uid, userHandle, false /* isGroupSummary */, null /* groupKey */);
    }

    /**
     * Creates a row based off the notification given.
     *
     * @param notification the notification
     * @return a row built off the notification
     * @throws Exception
     */
    public ExpandableNotificationRow createRow(Notification notification) throws Exception {
        return generateRow(notification, PKG, UID, USER_HANDLE, 0 /* extraInflationFlags */);
    }

    /**
     * Create a row with the specified content views inflated in addition to the default.
     *
     * @param extraInflationFlags the flags corresponding to the additional content views that
     *                            should be inflated
     * @return a row with the specified content views inflated in addition to the default
     * @throws Exception
     */
    public ExpandableNotificationRow createRow(@InflationFlag int extraInflationFlags)
            throws Exception {
        return generateRow(createNotification(), PKG, UID, USER_HANDLE, extraInflationFlags);
    }

    /**
     * Returns an {@link ExpandableNotificationRow} group with the given number of child
     * notifications.
     */
    public ExpandableNotificationRow createGroup(int numChildren) throws Exception {
        ExpandableNotificationRow row = createGroupSummary(GROUP_KEY);
        for (int i = 0; i < numChildren; i++) {
            ExpandableNotificationRow childRow = createGroupChild(GROUP_KEY);
            row.addChildNotification(childRow);
        }
        return row;
    }

    /** Returns a group notification with 2 child notifications. */
    public ExpandableNotificationRow createGroup() throws Exception {
        return createGroup(2);
    }

    private ExpandableNotificationRow createGroupSummary(String groupkey) throws Exception {
        return createRow(PKG, UID, USER_HANDLE, true /* isGroupSummary */, groupkey);
    }

    private ExpandableNotificationRow createGroupChild(String groupkey) throws Exception {
        return createRow(PKG, UID, USER_HANDLE, false /* isGroupSummary */, groupkey);
    }

    /**
     * Returns an {@link ExpandableNotificationRow} that should be shown as a bubble.
     */
    public ExpandableNotificationRow createBubbleInGroup()
            throws Exception {
        return createBubble(makeBubbleMetadata(null), PKG, true);
    }

    /**
     * Returns an {@link ExpandableNotificationRow} that should be shown as a bubble.
     */
    public ExpandableNotificationRow createBubble()
            throws Exception {
        return createBubble(makeBubbleMetadata(null), PKG, false);
    }

    /**
     * Returns an {@link ExpandableNotificationRow} that should be shown as a bubble.
     *
     * @param deleteIntent the intent to assign to {@link BubbleMetadata#deleteIntent}
     */
    public ExpandableNotificationRow createBubble(@Nullable PendingIntent deleteIntent)
            throws Exception {
        return createBubble(makeBubbleMetadata(deleteIntent), PKG, false);
    }

    /**
     * Returns an {@link ExpandableNotificationRow} that should be shown as a bubble.
     *
     * @param bubbleMetadata the {@link BubbleMetadata} to use
     */
    public ExpandableNotificationRow createBubble(BubbleMetadata bubbleMetadata, String pkg)
            throws Exception {
        return createBubble(bubbleMetadata, pkg, false);
    }

    private ExpandableNotificationRow createBubble(BubbleMetadata bubbleMetadata, String pkg,
            boolean inGroup)
            throws Exception {
        Notification n = createNotification(false /* isGroupSummary */,
                inGroup ? GROUP_KEY : null /* groupKey */, bubbleMetadata);
        n.flags |= FLAG_BUBBLE;
        ExpandableNotificationRow row = generateRow(n, pkg, UID, USER_HANDLE,
                0 /* extraInflationFlags */, IMPORTANCE_HIGH);
        modifyRanking(row.getEntry())
                .setCanBubble(true)
                .build();
        return row;
    }

    /**
     * Creates a notification row with the given details.
     *
     * @param pkg package used for creating a {@link StatusBarNotification}
     * @param uid uid used for creating a {@link StatusBarNotification}
     * @param isGroupSummary whether the notification row is a group summary
     * @param groupKey the group key for the notification group used across notifications
     * @return a row with that's either a standalone notification or a group notification if the
     *         groupKey is non-null
     * @throws Exception
     */
    private ExpandableNotificationRow createRow(
            String pkg,
            int uid,
            UserHandle userHandle,
            boolean isGroupSummary,
            @Nullable String groupKey)
            throws Exception {
        Notification notif = createNotification(isGroupSummary, groupKey);
        return generateRow(notif, pkg, uid, userHandle, 0 /* inflationFlags */);
    }

    /**
     * Creates a generic notification.
     *
     * @return a notification with no special properties
     */
    public Notification createNotification() {
        return createNotification(false /* isGroupSummary */, null /* groupKey */);
    }

    /**
     * Creates a notification with the given parameters.
     *
     * @param isGroupSummary whether the notification is a group summary
     * @param groupKey the group key for the notification group used across notifications
     * @return a notification that is in the group specified or standalone if unspecified
     */
    private Notification createNotification(boolean isGroupSummary, @Nullable String groupKey) {
        return createNotification(isGroupSummary, groupKey, null /* bubble metadata */);
    }

    /**
     * Creates a notification with the given parameters.
     *
     * @param isGroupSummary whether the notification is a group summary
     * @param groupKey the group key for the notification group used across notifications
     * @param bubbleMetadata the bubble metadata to use for this notification if it exists.
     * @return a notification that is in the group specified or standalone if unspecified
     */
    public Notification createNotification(boolean isGroupSummary,
            @Nullable String groupKey, @Nullable BubbleMetadata bubbleMetadata) {
        Notification publicVersion = new Notification.Builder(mContext).setSmallIcon(
                R.drawable.ic_person)
                .setCustomContentView(new RemoteViews(mContext.getPackageName(),
                        R.layout.custom_view_dark))
                .build();
        Notification.Builder notificationBuilder = new Notification.Builder(mContext, "channelId")
                .setSmallIcon(R.drawable.ic_person)
                .setContentTitle("Title")
                .setContentText("Text")
                .setPublicVersion(publicVersion)
                .setStyle(new Notification.BigTextStyle().bigText("Big Text"));
        if (isGroupSummary) {
            notificationBuilder.setGroupSummary(true);
        }
        if (!TextUtils.isEmpty(groupKey)) {
            notificationBuilder.setGroup(groupKey);
        }
        if (bubbleMetadata != null) {
            notificationBuilder.setBubbleMetadata(bubbleMetadata);
        }
        return notificationBuilder.build();
    }

    public StatusBarStateController getStatusBarStateController() {
        return mStatusBarStateController;
    }

    private ExpandableNotificationRow generateRow(
            Notification notification,
            String pkg,
            int uid,
            UserHandle userHandle,
            @InflationFlag int extraInflationFlags)
            throws Exception {
        return generateRow(notification, pkg, uid, userHandle, extraInflationFlags,
                IMPORTANCE_DEFAULT);
    }

    private ExpandableNotificationRow generateRow(
            Notification notification,
            String pkg,
            int uid,
            UserHandle userHandle,
            @InflationFlag int extraInflationFlags,
            int importance)
            throws Exception {
        LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(
                mContext.LAYOUT_INFLATER_SERVICE);
        mRow = (ExpandableNotificationRow) inflater.inflate(
                R.layout.status_bar_notification_row,
                null /* root */,
                false /* attachToRoot */);
        ExpandableNotificationRow row = mRow;

        final NotificationChannel channel =
                new NotificationChannel(
                        notification.getChannelId(),
                        notification.getChannelId(),
                        importance);
        channel.setBlockable(true);

        NotificationEntry entry = new NotificationEntryBuilder()
                .setPkg(pkg)
                .setOpPkg(pkg)
                .setId(mId++)
                .setUid(uid)
                .setInitialPid(2000)
                .setNotification(notification)
                .setUser(userHandle)
                .setPostTime(System.currentTimeMillis())
                .setChannel(channel)
                .build();

        entry.setRow(row);
        mIconManager.createIcons(entry);
        row.setEntry(entry);

        mBindPipelineEntryListener.onEntryInit(entry);
        mBindPipeline.manageRow(entry, row);

        row.initialize(
                APP_NAME,
                entry.getKey(),
                mock(ExpansionLogger.class),
                mock(KeyguardBypassController.class),
                mGroupManager,
                mHeadsUpManager,
                mBindStage,
                mock(OnExpandClickListener.class),
                mock(NotificationMediaManager.class),
                mock(ExpandableNotificationRow.OnAppOpsClickListener.class),
                mock(FalsingManager.class),
                mStatusBarStateController,
                mPeopleNotificationIdentifier);
        row.setAboveShelfChangedListener(aboveShelf -> { });
        mBindStage.getStageParams(entry).requireContentViews(extraInflationFlags);
        inflateAndWait(entry);

        // This would be done as part of onAsyncInflationFinished, but we skip large amounts of
        // the callback chain, so we need to make up for not adding it to the group manager
        // here.
        mGroupManager.onEntryAdded(entry);
        return row;
    }

    private void inflateAndWait(NotificationEntry entry) throws Exception {
        CountDownLatch countDownLatch = new CountDownLatch(1);
        mBindStage.requestRebind(entry, en -> countDownLatch.countDown());
        mTestLooper.processAllMessages();
        assertTrue(countDownLatch.await(500, TimeUnit.MILLISECONDS));
    }

    private BubbleMetadata makeBubbleMetadata(PendingIntent deleteIntent) {
        Intent target = new Intent(mContext, BubblesTestActivity.class);
        PendingIntent bubbleIntent = PendingIntent.getActivity(mContext, 0, target, 0);

        return new BubbleMetadata.Builder(bubbleIntent,
                        Icon.createWithResource(mContext, R.drawable.android))
                .setDeleteIntent(deleteIntent)
                .setDesiredHeight(314)
                .build();
    }
}