/*
 * 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.server.notification;

import static android.app.NotificationChannel.SOCIAL_MEDIA_ID;
import static android.app.NotificationManager.IMPORTANCE_HIGH;
import static android.app.NotificationManager.IMPORTANCE_LOW;
import static android.platform.test.flag.junit.SetFlagsRule.DefaultInitValueType.DEVICE_DEFAULT;
import static android.service.notification.Flags.FLAG_NOTIFICATION_CLASSIFICATION;
import static android.service.notification.Flags.FLAG_NOTIFICATION_FORCE_GROUPING;

import static com.google.common.truth.Truth.assertThat;

import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertFalse;
import static junit.framework.Assert.assertNull;
import static junit.framework.Assert.assertTrue;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.PendingIntent;
import android.content.Intent;
import android.graphics.drawable.Icon;
import android.os.Bundle;
import android.os.UserHandle;
import android.platform.test.annotations.DisableFlags;
import android.platform.test.annotations.EnableFlags;
import android.platform.test.flag.junit.FlagsParameterization;
import android.platform.test.flag.junit.SetFlagsRule;
import android.service.notification.Adjustment;
import android.service.notification.SnoozeCriterion;
import android.service.notification.StatusBarNotification;

import com.android.server.UiServiceTestCase;

import platform.test.runner.parameterized.ParameterizedAndroidJunit4;
import platform.test.runner.parameterized.Parameters;

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

import java.util.ArrayList;
import java.util.List;
import java.util.Objects;

@RunWith(ParameterizedAndroidJunit4.class)
public class NotificationAdjustmentExtractorTest extends UiServiceTestCase {

    @Rule
    public final SetFlagsRule mSetFlagsRule = new SetFlagsRule(DEVICE_DEFAULT);

    @Parameters(name = "{0}")
    public static List<FlagsParameterization> getParams() {
        return FlagsParameterization.allCombinationsOf(Flags.FLAG_SHOW_NOISY_BUNDLED_NOTIFICATIONS);
    }

    public NotificationAdjustmentExtractorTest(FlagsParameterization flags) {
        mSetFlagsRule.setFlagsParameterization(flags);
    }

    @Test
    public void testExtractsAdjustment() {
        NotificationAdjustmentExtractor extractor = new NotificationAdjustmentExtractor();

        NotificationRecord r = generateRecord();

        Bundle signals = new Bundle();
        signals.putString(Adjustment.KEY_GROUP_KEY, GroupHelper.AUTOGROUP_KEY);
        ArrayList<SnoozeCriterion> snoozeCriteria = new ArrayList<>();
        snoozeCriteria.add(new SnoozeCriterion("n", "n", "n"));
        signals.putParcelableArrayList(Adjustment.KEY_SNOOZE_CRITERIA, snoozeCriteria);
        ArrayList<String> people = new ArrayList<>();
        people.add("you");
        signals.putStringArrayList(Adjustment.KEY_PEOPLE, people);
        ArrayList<Notification.Action> smartActions = new ArrayList<>();
        smartActions.add(createAction());
        signals.putParcelableArrayList(Adjustment.KEY_CONTEXTUAL_ACTIONS, smartActions);
        Adjustment adjustment = new Adjustment("pkg", r.getKey(), signals, "", 0);
        r.addAdjustment(adjustment);

        assertFalse(r.getGroupKey().contains(GroupHelper.AUTOGROUP_KEY));
        assertFalse(Objects.equals(people, r.getPeopleOverride()));
        assertFalse(Objects.equals(snoozeCriteria, r.getSnoozeCriteria()));

        assertNull(extractor.process(r));

        assertTrue(r.getGroupKey().contains(GroupHelper.AUTOGROUP_KEY));
        assertEquals(people, r.getPeopleOverride());
        assertEquals(snoozeCriteria, r.getSnoozeCriteria());
        assertEquals(smartActions, r.getSystemGeneratedSmartActions());
    }

    @Test
    public void testExtractsAdjustments() {
        NotificationAdjustmentExtractor extractor = new NotificationAdjustmentExtractor();

        NotificationRecord r = generateRecord();

        Bundle pSignals = new Bundle();
        ArrayList<String> people = new ArrayList<>();
        people.add("you");
        pSignals.putStringArrayList(Adjustment.KEY_PEOPLE, people);
        Adjustment pAdjustment = new Adjustment("pkg", r.getKey(), pSignals, "", 0);
        r.addAdjustment(pAdjustment);

        Bundle sSignals = new Bundle();
        ArrayList<SnoozeCriterion> snoozeCriteria = new ArrayList<>();
        snoozeCriteria.add(new SnoozeCriterion("n", "n", "n"));
        sSignals.putParcelableArrayList(Adjustment.KEY_SNOOZE_CRITERIA, snoozeCriteria);
        Adjustment sAdjustment = new Adjustment("pkg", r.getKey(), sSignals, "", 0);
        r.addAdjustment(sAdjustment);

        Bundle gSignals = new Bundle();
        gSignals.putString(Adjustment.KEY_GROUP_KEY, GroupHelper.AUTOGROUP_KEY);
        Adjustment gAdjustment = new Adjustment("pkg", r.getKey(), gSignals, "", 0);
        r.addAdjustment(gAdjustment);

        assertFalse(r.getGroupKey().contains(GroupHelper.AUTOGROUP_KEY));
        assertFalse(Objects.equals(people, r.getPeopleOverride()));
        assertFalse(Objects.equals(snoozeCriteria, r.getSnoozeCriteria()));

        assertNull(extractor.process(r));

        assertTrue(r.getGroupKey().contains(GroupHelper.AUTOGROUP_KEY));
        assertEquals(people, r.getPeopleOverride());
        assertEquals(snoozeCriteria, r.getSnoozeCriteria());
    }

    @Test
    @EnableFlags({Flags.FLAG_SHOW_NOISY_BUNDLED_NOTIFICATIONS})
    public void testClassificationAdjustments_noisy_notImmediately() {
        NotificationChannel social = new NotificationChannel(
                SOCIAL_MEDIA_ID, "social", IMPORTANCE_LOW);
        GroupHelper groupHelper = mock(GroupHelper.class);
        NotificationAdjustmentExtractor extractor = new NotificationAdjustmentExtractor();
        extractor.setGroupHelper(groupHelper);

        NotificationRecord r = generateRecord();
        r.setAudiblyAlerted(true);

        Bundle classificationAdj = new Bundle();
        classificationAdj.putParcelable(Adjustment.KEY_TYPE, social);
        Adjustment adjustment = new Adjustment("pkg", r.getKey(), classificationAdj, "", 0);
        r.addAdjustment(adjustment);

        RankingReconsideration regroupingTask = extractor.process(r);
        assertThat(regroupingTask).isNotNull();
        regroupingTask.applyChangesLocked(r);
        assertThat(r.getChannel()).isNotEqualTo(social);
        verify(groupHelper, times(0)).onChannelUpdated(r);
    }

    @Test
    @EnableFlags({Flags.FLAG_SHOW_NOISY_BUNDLED_NOTIFICATIONS})
    public void testClassificationAdjustments_noisy_okAfterDelay() {
        NotificationChannel social = new NotificationChannel(
                SOCIAL_MEDIA_ID, "social", IMPORTANCE_LOW);
        GroupHelper groupHelper = mock(GroupHelper.class);
        NotificationAdjustmentExtractor extractor = new NotificationAdjustmentExtractor();
        extractor.setGroupHelper(groupHelper);

        NotificationRecord r = generateRecord();
        r.setAudiblyAlerted(true);

        Bundle classificationAdj = new Bundle();
        classificationAdj.putParcelable(Adjustment.KEY_TYPE, social);
        Adjustment adjustment = new Adjustment("pkg", r.getKey(), classificationAdj, "", 0);
        r.addAdjustment(adjustment);

        RankingReconsideration regroupingTask = extractor.process(r);
        assertThat(regroupingTask).isNotNull();

        extractor.mInjectedTimeMs = new NotificationAdjustmentExtractor.InjectedTime(
                System.currentTimeMillis() + NotificationAdjustmentExtractor.HANG_TIME_MS);

        regroupingTask.applyChangesLocked(r);
        assertThat(r.getChannel()).isEqualTo(social);
        verify(groupHelper, times(1)).onChannelUpdated(r);
    }

    @Test
    @EnableFlags({FLAG_NOTIFICATION_CLASSIFICATION, FLAG_NOTIFICATION_FORCE_GROUPING})
    public void testClassificationAdjustments_triggerRegrouping_whenSilent() {
        NotificationChannel social = new NotificationChannel(
                SOCIAL_MEDIA_ID, "social", IMPORTANCE_LOW);
        GroupHelper groupHelper = mock(GroupHelper.class);
        NotificationAdjustmentExtractor extractor = new NotificationAdjustmentExtractor();
        extractor.setGroupHelper(groupHelper);

        NotificationRecord r = generateRecord();

        Bundle classificationAdj = new Bundle();
        classificationAdj.putParcelable(Adjustment.KEY_TYPE, social);
        Adjustment adjustment = new Adjustment("pkg", r.getKey(), classificationAdj, "", 0);
        r.addAdjustment(adjustment);

        RankingReconsideration regroupingTask = extractor.process(r);
        assertThat(regroupingTask).isNotNull();
        regroupingTask.applyChangesLocked(r);
        assertThat(r.getChannel()).isEqualTo(social);
        verify(groupHelper, times(1)).onChannelUpdated(r);
    }

    @Test
    @EnableFlags({FLAG_NOTIFICATION_CLASSIFICATION, FLAG_NOTIFICATION_FORCE_GROUPING})
    public void testClassificationAdjustments_unclassifyTriggersUnbundling() {
        GroupHelper groupHelper = mock(GroupHelper.class);
        NotificationAdjustmentExtractor extractor = new NotificationAdjustmentExtractor();
        extractor.setGroupHelper(groupHelper);

        NotificationRecord r = generateRecord();
        r.setHadGroupSummaryWhenUnclassified(true);

        Bundle classificationAdj = new Bundle();
        classificationAdj.putParcelable(Adjustment.KEY_UNCLASSIFY, mock(NotificationChannel.class));
        Adjustment adjustment = new Adjustment("pkg", r.getKey(), classificationAdj, "", 0);
        r.addAdjustment(adjustment);

        RankingReconsideration regroupingTask = extractor.process(r);
        assertThat(regroupingTask).isNotNull();
        regroupingTask.applyChangesLocked(r);
        verify(groupHelper, times(1)).onNotificationUnbundled(r, true);

        // make sure that the group summary boolean is passed through correctly
        r.setHadGroupSummaryWhenUnclassified(false);
        classificationAdj.putParcelable(Adjustment.KEY_UNCLASSIFY, mock(NotificationChannel.class));
        adjustment = new Adjustment("pkg", r.getKey(), classificationAdj, "", 0);
        r.addAdjustment(adjustment);
        RankingReconsideration regroupingTask2 = extractor.process(r);
        assertThat(regroupingTask2).isNotNull();
        regroupingTask2.applyChangesLocked(r);
        verify(groupHelper, times(1)).onNotificationUnbundled(r, false);
    }

    @Test
    @DisableFlags({FLAG_NOTIFICATION_CLASSIFICATION, FLAG_NOTIFICATION_FORCE_GROUPING})
    public void testClassificationAdjustments_notTriggerRegrouping_flagsDisabled() {
        GroupHelper groupHelper = mock(GroupHelper.class);
        NotificationAdjustmentExtractor extractor = new NotificationAdjustmentExtractor();
        extractor.setGroupHelper(groupHelper);

        NotificationRecord r = generateRecord();

        Bundle classificationAdj = new Bundle();
        classificationAdj.putParcelable(Adjustment.KEY_TYPE, mock(NotificationChannel.class));
        Adjustment adjustment = new Adjustment("pkg", r.getKey(), classificationAdj, "", 0);
        r.addAdjustment(adjustment);

        RankingReconsideration regroupingTask = extractor.process(r);
        assertThat(regroupingTask).isNull();
    }

    private NotificationRecord generateRecord() {
        NotificationChannel channel = new NotificationChannel("a", "a", IMPORTANCE_HIGH);
        final Notification.Builder builder = new Notification.Builder(getContext())
                .setContentTitle("foo")
                .setSmallIcon(android.R.drawable.sym_def_app_icon);
        Notification n = builder.build();
        StatusBarNotification sbn = new StatusBarNotification("", "", 0, "", 0,
                0, n, UserHandle.ALL, null, System.currentTimeMillis());
       return new NotificationRecord(getContext(), sbn, channel);
    }

    private Notification.Action createAction() {
        return new Notification.Action.Builder(
                Icon.createWithResource(getContext(), android.R.drawable.sym_def_app_icon),
                "action",
                PendingIntent.getBroadcast(getContext(), 0, new Intent("Action"),
                    PendingIntent.FLAG_IMMUTABLE)).build();
    }
}