/*
 * 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.doze;

import static com.android.systemui.doze.DozeMachine.State.DOZE_AOD;
import static com.android.systemui.doze.DozeMachine.State.INITIALIZED;
import static com.android.systemui.doze.DozeMachine.State.UNINITIALIZED;

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyFloat;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.clearInvocations;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import android.app.StatusBarManager;
import android.hardware.Sensor;
import android.hardware.display.AmbientDisplayConfiguration;
import android.testing.AndroidTestingRunner;
import android.testing.TestableLooper.RunWithLooper;
import android.view.Display;

import androidx.test.filters.SmallTest;

import com.android.internal.logging.InstanceId;
import com.android.internal.logging.UiEventLogger;
import com.android.systemui.SysuiTestCase;
import com.android.systemui.biometrics.AuthController;
import com.android.systemui.broadcast.BroadcastDispatcher;
import com.android.systemui.dock.DockManager;
import com.android.systemui.doze.DozeTriggers.DozingUpdateUiEvent;
import com.android.systemui.log.SessionTracker;
import com.android.systemui.settings.UserTracker;
import com.android.systemui.statusbar.phone.DozeParameters;
import com.android.systemui.statusbar.policy.DevicePostureController;
import com.android.systemui.statusbar.policy.KeyguardStateController;
import com.android.systemui.util.concurrency.FakeExecutor;
import com.android.systemui.util.concurrency.FakeThreadFactory;
import com.android.systemui.util.sensors.AsyncSensorManager;
import com.android.systemui.util.sensors.FakeProximitySensor;
import com.android.systemui.util.sensors.FakeSensorManager;
import com.android.systemui.util.sensors.FakeThresholdSensor;
import com.android.systemui.util.sensors.ProximityCheck;
import com.android.systemui.util.sensors.ThresholdSensorEvent;
import com.android.systemui.util.settings.FakeSettings;
import com.android.systemui.util.time.FakeSystemClock;
import com.android.systemui.util.wakelock.WakeLock;
import com.android.systemui.util.wakelock.WakeLockFake;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

@SmallTest
@RunWith(AndroidTestingRunner.class)
@RunWithLooper(setAsMainLooper = true)
public class DozeTriggersTest extends SysuiTestCase {

    @Mock
    private DozeMachine mMachine;
    @Mock
    private DozeHost mHost;
    @Mock
    private BroadcastDispatcher mBroadcastDispatcher;
    @Mock
    private DockManager mDockManager;
    @Mock
    private ProximityCheck mProximityCheck;
    @Mock
    private DozeLog mDozeLog;
    @Mock
    private AuthController mAuthController;
    @Mock
    private UiEventLogger mUiEventLogger;
    @Mock
    private KeyguardStateController mKeyguardStateController;
    @Mock
    private DevicePostureController mDevicePostureController;
    @Mock
    private UserTracker mUserTracker;
    @Mock
    private SessionTracker mSessionTracker;

    private DozeTriggers mTriggers;
    private FakeSensorManager mSensors;
    private Sensor mTapSensor;
    private FakeProximitySensor mProximitySensor;
    private final FakeExecutor mExecutor = new FakeExecutor(new FakeSystemClock());

    @Before
    public void setUp() throws Exception {
        MockitoAnnotations.initMocks(this);
        setupDozeTriggers(
                DozeConfigurationUtil.createMockConfig(),
                DozeConfigurationUtil.createMockParameters());
    }

    private void setupDozeTriggers(
            AmbientDisplayConfiguration config,
            DozeParameters dozeParameters) throws Exception {
        mSensors = spy(new FakeSensorManager(mContext));
        mTapSensor = mSensors.getFakeTapSensor().getSensor();
        WakeLock wakeLock = new WakeLockFake();
        AsyncSensorManager asyncSensorManager =
                new AsyncSensorManager(mSensors, new FakeThreadFactory(mExecutor), null);

        FakeThresholdSensor thresholdSensor = new FakeThresholdSensor();
        thresholdSensor.setLoaded(true);
        mProximitySensor = new FakeProximitySensor(thresholdSensor,  null, mExecutor);

        mTriggers = new DozeTriggers(mContext, mHost, config, dozeParameters,
                asyncSensorManager, wakeLock, mDockManager, mProximitySensor,
                mProximityCheck, mDozeLog, mBroadcastDispatcher, new FakeSettings(),
                mAuthController, mUiEventLogger, mSessionTracker, mKeyguardStateController,
                mDevicePostureController, mUserTracker);
        mTriggers.setDozeMachine(mMachine);
        waitForSensorManager();
    }

    @Test
    public void testOnNotification_stillWorksAfterOneFailedProxCheck() {
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE);
        ArgumentCaptor<DozeHost.Callback> captor = ArgumentCaptor.forClass(DozeHost.Callback.class);
        doAnswer(invocation -> null).when(mHost).addCallback(captor.capture());

        mTriggers.transitionTo(UNINITIALIZED, DozeMachine.State.INITIALIZED);
        mTriggers.transitionTo(DozeMachine.State.INITIALIZED, DozeMachine.State.DOZE);
        clearInvocations(mMachine);

        ArgumentCaptor<Boolean> boolCaptor = ArgumentCaptor.forClass(Boolean.class);
        doAnswer(invocation ->
                when(mHost.isPulsePending()).thenReturn(boolCaptor.getValue())
        ).when(mHost).setPulsePending(boolCaptor.capture());

        when(mHost.isPulsingBlocked()).thenReturn(false);
        mProximitySensor.setLastEvent(new ThresholdSensorEvent(true, 1));
        captor.getValue().onNotificationAlerted(null /* pulseSuppressedListener */);
        mProximitySensor.alertListeners();

        verify(mMachine, never()).requestState(any());
        verify(mMachine, never()).requestPulse(anyInt());

        mProximitySensor.setLastEvent(new ThresholdSensorEvent(false, 2));
        mProximitySensor.alertListeners();
        waitForSensorManager();
        captor.getValue().onNotificationAlerted(null /* pulseSuppressedListener */);

        verify(mMachine).requestPulse(anyInt());
    }

    @Test
    public void testOnNotification_noPulseIfPulseIsNotPendingAnymore() {
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE);
        ArgumentCaptor<DozeHost.Callback> captor = ArgumentCaptor.forClass(DozeHost.Callback.class);
        doAnswer(invocation -> null).when(mHost).addCallback(captor.capture());

        mTriggers.transitionTo(UNINITIALIZED, DozeMachine.State.INITIALIZED);
        mTriggers.transitionTo(DozeMachine.State.INITIALIZED, DozeMachine.State.DOZE);
        clearInvocations(mMachine);
        when(mHost.isPulsingBlocked()).thenReturn(false);

        // GIVEN pulsePending = false
        when(mHost.isPulsePending()).thenReturn(false);

        // WHEN prox check returns FAR
        mProximitySensor.setLastEvent(new ThresholdSensorEvent(false, 2));
        captor.getValue().onNotificationAlerted(null /* pulseSuppressedListener */);
        mProximitySensor.alertListeners();

        // THEN don't request pulse because the pending pulse was abandoned early
        verify(mMachine, never()).requestPulse(anyInt());
    }

    @Test
    public void testTransitionTo_disablesAndEnablesTouchSensors() {
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE);

        mTriggers.transitionTo(DozeMachine.State.INITIALIZED, DozeMachine.State.DOZE);
        mTriggers.onScreenState(Display.STATE_OFF);
        waitForSensorManager();
        verify(mSensors).requestTriggerSensor(any(), eq(mTapSensor));

        clearInvocations(mSensors);
        mTriggers.transitionTo(DozeMachine.State.DOZE,
                DozeMachine.State.DOZE_REQUEST_PULSE);
        mTriggers.transitionTo(DozeMachine.State.DOZE_REQUEST_PULSE,
                DozeMachine.State.DOZE_PULSING);
        mTriggers.onScreenState(Display.STATE_DOZE);
        waitForSensorManager();
        verify(mSensors).cancelTriggerSensor(any(), eq(mTapSensor));

        clearInvocations(mSensors);
        mTriggers.transitionTo(DozeMachine.State.DOZE_PULSING, DozeMachine.State.DOZE_PULSE_DONE);
        mTriggers.transitionTo(DozeMachine.State.DOZE_PULSE_DONE, DOZE_AOD);
        waitForSensorManager();
        verify(mSensors).requestTriggerSensor(any(), eq(mTapSensor));
    }

    @Test
    public void transitionToDockedAod_disablesTouchSensors() {
        mTriggers.transitionTo(DozeMachine.State.INITIALIZED, DozeMachine.State.DOZE);
        mTriggers.onScreenState(Display.STATE_OFF);
        waitForSensorManager();
        verify(mSensors).requestTriggerSensor(any(), eq(mTapSensor));

        mTriggers.transitionTo(DozeMachine.State.DOZE, DozeMachine.State.DOZE_AOD_DOCKED);
        mTriggers.onScreenState(Display.STATE_DOZE);
        waitForSensorManager();

        verify(mSensors).cancelTriggerSensor(any(), eq(mTapSensor));
    }

    @Test
    public void transitionToDozeSuspendTriggers_disablesAllCallbacks() {
        mTriggers.transitionTo(UNINITIALIZED, INITIALIZED);
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE_SUSPEND_TRIGGERS);

        mTriggers.transitionTo(DozeMachine.State.INITIALIZED,
                DozeMachine.State.DOZE_SUSPEND_TRIGGERS);

        verify(mDockManager).removeListener(any());
        verify(mBroadcastDispatcher).unregisterReceiver(any());
        verify(mHost).removeCallback(any());
    }

    @Test
    public void testDockEventListener_registerAndUnregister() {
        mTriggers.transitionTo(UNINITIALIZED, DozeMachine.State.INITIALIZED);
        verify(mDockManager).addListener(any());

        mTriggers.transitionTo(DozeMachine.State.DOZE, DozeMachine.State.FINISH);
        verify(mDockManager).removeListener(any());
    }

    @Test
    public void testProximitySensorNotAvailable() {
        mProximitySensor.setSensorAvailable(false);
        mTriggers.onSensor(DozeLog.PULSE_REASON_SENSOR_LONG_PRESS, 100, 100, null);
        mTriggers.onSensor(DozeLog.PULSE_REASON_SENSOR_WAKE_REACH, 100, 100,
                new float[]{1});
        mTriggers.onSensor(DozeLog.REASON_SENSOR_TAP, 100, 100, null);
    }

    @Test
    public void testQuickPickup() {
        // GIVEN device is in doze (screen blank, but running doze sensors)
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE);
        InstanceId keyguardSessionId = InstanceId.fakeInstanceId(99);
        when(mSessionTracker.getSessionId(StatusBarManager.SESSION_KEYGUARD))
                .thenReturn(keyguardSessionId);

        ArgumentCaptor<Boolean> boolCaptor = ArgumentCaptor.forClass(Boolean.class);
        doAnswer(invocation ->
                when(mHost.isPulsePending()).thenReturn(boolCaptor.getValue())
        ).when(mHost).setPulsePending(boolCaptor.capture());

        // WHEN quick pick up is triggered
        mTriggers.onSensor(DozeLog.REASON_SENSOR_QUICK_PICKUP, 100, 100, null);

        // THEN request pulse
        verify(mMachine).requestPulse(anyInt());

        // THEN a log is taken that quick pick up was triggered
        verify(mUiEventLogger)
                .log(DozingUpdateUiEvent.DOZING_UPDATE_QUICK_PICKUP, keyguardSessionId);
    }

    @Test
    public void testPickupGesture() {
        // GIVEN device is in doze (screen blank, but running doze sensors)
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE);

        // WHEN the pick up gesture is triggered and keyguard isn't occluded
        when(mKeyguardStateController.isOccluded()).thenReturn(false);
        mTriggers.onSensor(DozeLog.REASON_SENSOR_PICKUP, 100, 100, null);

        // THEN wakeup
        verify(mMachine).wakeUp(DozeLog.REASON_SENSOR_PICKUP);
    }

    @Test
    public void test_onSensor_tap() {
        mTriggers.onSensor(DozeLog.REASON_SENSOR_TAP, 100, 200, null);

        verify(mHost).onSlpiTap(100, 200);
        verify(mMachine).wakeUp(DozeLog.REASON_SENSOR_TAP);
    }

    @Test
    public void test_onSensor_double_tap() {
        mTriggers.onSensor(DozeLog.REASON_SENSOR_DOUBLE_TAP, 100, 200, null);

        verify(mHost).onSlpiTap(100, 200);
        verify(mMachine).wakeUp(DozeLog.REASON_SENSOR_DOUBLE_TAP);
    }

    @Test
    public void testPickupGestureDroppedKeyguardOccluded() {
        // GIVEN device is in doze (screen blank, but running doze sensors)
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE);

        // WHEN the pick up gesture is triggered and keyguard IS occluded
        when(mKeyguardStateController.isOccluded()).thenReturn(true);
        mTriggers.onSensor(DozeLog.REASON_SENSOR_PICKUP, 100, 100, null);

        // THEN never wakeup
        verify(mMachine, never()).wakeUp(DozeLog.REASON_SENSOR_PICKUP);
    }

    @Test
    public void testOnSensor_Fingerprint() {
        // GIVEN dozing state
        when(mMachine.getState()).thenReturn(DOZE_AOD);
        final int screenX = 100;
        final int screenY = 100;
        final float misc = -1;
        final float minor = 2f;
        final float major = 3f;
        final int reason = DozeLog.REASON_SENSOR_UDFPS_LONG_PRESS;
        float[] rawValues = new float[]{screenX, screenY, misc, major, minor};

        // WHEN longpress gesture is triggered
        mTriggers.onSensor(reason, screenX, screenY, rawValues);

        // THEN
        // * don't immediately send interrupt
        // * immediately extend pulse
        verify(mAuthController, never()).onAodInterrupt(anyInt(), anyInt(), anyFloat(), anyFloat());
        verify(mHost).extendPulse(reason);

        // WHEN display state changes to ON
        mTriggers.onScreenState(Display.STATE_ON);

        // THEN send interrupt
        verify(mAuthController).onAodInterrupt(eq(screenX), eq(screenY), eq(major), eq(minor));
    }

    @Test
    public void testDestroy() {
        mTriggers.destroy();
        verify(mProximityCheck).destroy();
    }

    @Test
    public void testIsExecutingTransition_dropPulse() {
        when(mHost.isPulsePending()).thenReturn(false);
        when(mMachine.isExecutingTransition()).thenReturn(true);

        mTriggers.onSensor(DozeLog.PULSE_REASON_SENSOR_LONG_PRESS, 100, 100, null);

        verify(mDozeLog).tracePulseDropped(anyString(), eq(null));
    }

    @Test
    public void udfpsLongPress_triggeredWhenAodPaused() {
        // GIVEN device is DOZE_AOD_PAUSED
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE_AOD_PAUSED);

        // WHEN udfps long-press is triggered
        mTriggers.onSensor(DozeLog.REASON_SENSOR_UDFPS_LONG_PRESS, 100, 100,
                new float[]{0, 1, 2, 3, 4});

        // THEN the pulse is NOT dropped
        verify(mDozeLog, never()).tracePulseDropped(anyString(), any());

        // WHEN the screen state is ON
        mTriggers.onScreenState(Display.STATE_ON);

        // THEN aod interrupt is sent
        verify(mAuthController).onAodInterrupt(anyInt(), anyInt(), anyFloat(), anyFloat());
    }

    @Test
    public void udfpsLongPress_triggeredWhenAodPausing() {
        // GIVEN device is DOZE_AOD_PAUSED
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE_AOD_PAUSING);

        // WHEN udfps long-press is triggered
        mTriggers.onSensor(DozeLog.REASON_SENSOR_UDFPS_LONG_PRESS, 100, 100,
                new float[]{0, 1, 2, 3, 4});

        // THEN the pulse is NOT dropped
        verify(mDozeLog, never()).tracePulseDropped(anyString(), any());

        // WHEN the screen state is ON
        mTriggers.onScreenState(Display.STATE_ON);

        // THEN aod interrupt is sent
        verify(mAuthController).onAodInterrupt(anyInt(), anyInt(), anyFloat(), anyFloat());
    }


    @Test
    public void udfpsLongPress_dozeState_notRegistered() {
        // GIVEN device is DOZE_AOD_PAUSED
        when(mMachine.getState()).thenReturn(DozeMachine.State.DOZE);
        // beverlyt
    }

    private void waitForSensorManager() {
        mExecutor.runAllReady();
    }
}