/*
 * Copyright (C) 2023 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

import android.content.ComponentName
import android.content.Context
import android.content.pm.PackageManager
import android.content.pm.ResolveInfo
import android.os.Binder
import android.os.PowerManager
import android.os.UserManager
import android.platform.test.annotations.DisableFlags
import android.platform.test.annotations.EnableFlags
import android.testing.TestableLooper
import android.view.Display
import android.view.MotionEvent
import android.view.ViewGroup
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.SmallTest
import com.android.internal.app.AssistUtils
import com.android.internal.logging.UiEventLogger
import com.android.systemui.LauncherProxyService.ACTION_QUICKSTEP
import com.android.systemui.broadcast.BroadcastDispatcher
import com.android.systemui.dagger.qualifiers.Main
import com.android.systemui.display.data.repository.displayRepository
import com.android.systemui.dump.DumpManager
import com.android.systemui.keyguard.KeyguardUnlockAnimationController
import com.android.systemui.keyguard.WakefulnessLifecycle
import com.android.systemui.keyguard.ui.view.InWindowLauncherUnlockAnimationManager
import com.android.systemui.kosmos.testScope
import com.android.systemui.log.assertLogsWtf
import com.android.systemui.model.fakeSysUIStatePerDisplayRepository
import com.android.systemui.model.sysUiState
import com.android.systemui.model.sysUiStateFactory
import com.android.systemui.navigationbar.NavigationBarController
import com.android.systemui.navigationbar.NavigationModeController
import com.android.systemui.navigationbar.views.NavigationBar
import com.android.systemui.process.ProcessWrapper
import com.android.systemui.recents.ScreenPinningRequest
import com.android.systemui.scene.domain.interactor.SceneInteractor
import com.android.systemui.settings.FakeDisplayTracker
import com.android.systemui.settings.UserTracker
import com.android.systemui.shade.ShadeViewController
import com.android.systemui.shade.display.StatusBarTouchShadeDisplayPolicy
import com.android.systemui.shade.domain.interactor.shadeInteractor
import com.android.systemui.shade.domain.interactor.shadeModeInteractor
import com.android.systemui.shared.recents.ILauncherProxy
import com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_NAVIGATION_BAR_DISABLED
import com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_WAKEFULNESS_MASK
import com.android.systemui.shared.system.QuickStepContract.WAKEFULNESS_ASLEEP
import com.android.systemui.shared.system.QuickStepContract.WAKEFULNESS_AWAKE
import com.android.systemui.shared.system.QuickStepContract.WAKEFULNESS_GOING_TO_SLEEP
import com.android.systemui.shared.system.QuickStepContract.WAKEFULNESS_WAKING
import com.android.systemui.statusbar.CommandQueue
import com.android.systemui.statusbar.NotificationShadeWindowController
import com.android.systemui.unfold.progress.UnfoldTransitionProgressForwarder
import com.android.systemui.user.domain.interactor.HeadlessSystemUserModeFake
import com.android.systemui.util.mockito.mock
import com.android.systemui.util.time.FakeSystemClock
import com.android.wm.shell.back.BackAnimation
import com.android.wm.shell.shared.desktopmode.FakeDesktopState
import com.android.wm.shell.sysui.ShellInterface
import com.google.common.util.concurrent.MoreExecutors
import java.util.Optional
import java.util.concurrent.Executor
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.runBlocking
import kotlinx.coroutines.test.runTest
import org.junit.After
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.ArgumentMatchers
import org.mockito.ArgumentMatchers.anyLong
import org.mockito.ArgumentMatchers.anyString
import org.mockito.ArgumentMatchers.eq
import org.mockito.Mock
import org.mockito.Mockito.any
import org.mockito.Mockito.anyInt
import org.mockito.Mockito.atLeast
import org.mockito.Mockito.clearInvocations
import org.mockito.Mockito.longThat
import org.mockito.Mockito.mock
import org.mockito.Mockito.spy
import org.mockito.Mockito.times
import org.mockito.Mockito.verify
import org.mockito.Mockito.`when`
import org.mockito.MockitoAnnotations
import org.mockito.kotlin.argThat
import org.mockito.kotlin.doNothing
import org.mockito.kotlin.never
import org.mockito.kotlin.whenever

@SmallTest
@RunWith(AndroidJUnit4::class)
@TestableLooper.RunWithLooper(setAsMainLooper = true)
class LauncherProxyServiceTest : SysuiTestCase() {

    @Main private val executor: Executor = MoreExecutors.directExecutor()

    private val kosmos = testKosmos()
    private lateinit var subject: LauncherProxyService
    @Mock private val dumpManager = DumpManager()
    @Mock private lateinit var processWrapper: ProcessWrapper
    private val displayTracker = FakeDisplayTracker(mContext)
    private val fakeSystemClock = FakeSystemClock()
    private val sysUiState = kosmos.sysUiState
    private val sysUiStateFactory = kosmos.sysUiStateFactory
    private val wakefulnessLifecycle =
        WakefulnessLifecycle(mContext, null, fakeSystemClock, dumpManager)
    private val sysuiStatePerDisplayRepository = kosmos.fakeSysUIStatePerDisplayRepository

    @Mock private lateinit var launcherProxy: ILauncherProxy.Stub
    @Mock private lateinit var packageManager: PackageManager

    // The following mocks belong to not-yet-tested parts of LauncherProxyService.
    @Mock private lateinit var commandQueue: CommandQueue
    @Mock private lateinit var shellInterface: ShellInterface
    @Mock private lateinit var navBarController: NavigationBarController
    @Mock private lateinit var shadeViewController: ShadeViewController
    @Mock private lateinit var sceneInteractor: SceneInteractor
    @Mock private lateinit var screenPinningRequest: ScreenPinningRequest
    @Mock private lateinit var navModeController: NavigationModeController
    @Mock private lateinit var statusBarWinController: NotificationShadeWindowController
    @Mock private lateinit var userTracker: UserTracker
    @Mock private lateinit var userManager: UserManager
    @Mock private lateinit var uiEventLogger: UiEventLogger
    @Mock private lateinit var sysuiUnlockAnimationController: KeyguardUnlockAnimationController
    @Mock
    private lateinit var inWindowLauncherUnlockAnimationManager:
        InWindowLauncherUnlockAnimationManager
    @Mock private lateinit var assistUtils: AssistUtils
    @Mock
    private lateinit var unfoldTransitionProgressForwarder:
        Optional<UnfoldTransitionProgressForwarder>
    @Mock private lateinit var broadcastDispatcher: BroadcastDispatcher
    @Mock private lateinit var statusBarShadeDisplayPolicy: StatusBarTouchShadeDisplayPolicy
    @Mock private lateinit var backAnimation: Optional<BackAnimation>
    private lateinit var desktopState: FakeDesktopState
    private val fakeHeadlessSystemUserMode = HeadlessSystemUserModeFake()

    @Before
    fun setUp() {
        MockitoAnnotations.initMocks(this)

        desktopState = FakeDesktopState()

        val serviceComponent = ComponentName("test_package", "service_provider")
        context.addMockService(serviceComponent, launcherProxy)
        context.addMockServiceResolver {
            if (it.action == ACTION_QUICKSTEP) serviceComponent else null
        }
        whenever(launcherProxy.queryLocalInterface(ArgumentMatchers.anyString()))
            .thenReturn(launcherProxy)
        whenever(launcherProxy.asBinder()).thenReturn(launcherProxy)
        doNothing().whenever(sceneInteractor).onRemoteUserInputStarted(anyString())
        doNothing().whenever(shadeViewController).startInputFocusTransfer()

        // packageManager.resolveServiceAsUser has to return non-null for
        // LauncherProxyService#isEnabled to become true.
        context.setMockPackageManager(packageManager)
        whenever(packageManager.resolveServiceAsUser(any(), anyInt(), anyInt()))
            .thenReturn(mock(ResolveInfo::class.java))

        // return isSystemUser as true by default.
        `when`(processWrapper.isSystemUser).thenReturn(true)
        sysuiStatePerDisplayRepository.add(Display.DEFAULT_DISPLAY, sysUiState)
        runBlocking { kosmos.displayRepository.apply { addDisplay(0) } }
        fakeHeadlessSystemUserMode.setIsHeadlessSystemUser(false)
        whenever(userTracker.userId).then { Binder.getCallingUserHandle().identifier }
        subject = createLauncherProxyService(context)
    }

    @After
    fun tearDown() {
        subject.shutdownForTest()
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun wakefulnessLifecycle_dispatchFinishedWakingUpSetsSysUIflagToAWAKE() {
        // WakefulnessLifecycle is initialized to AWAKE initially, and won't emit a noop.
        wakefulnessLifecycle.dispatchFinishedGoingToSleep()
        clearInvocations(launcherProxy)

        wakefulnessLifecycle.dispatchFinishedWakingUp()

        verify(launcherProxy)
            .onSystemUiStateChanged(
                longThat { it and SYSUI_STATE_WAKEFULNESS_MASK == WAKEFULNESS_AWAKE },
                eq(Display.DEFAULT_DISPLAY),
            )
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun wakefulnessLifecycle_dispatchStartedWakingUpSetsSysUIflagToWAKING() {
        wakefulnessLifecycle.dispatchStartedWakingUp(PowerManager.WAKE_REASON_UNKNOWN)

        verify(launcherProxy)
            .onSystemUiStateChanged(
                longThat { it and SYSUI_STATE_WAKEFULNESS_MASK == WAKEFULNESS_WAKING },
                eq(Display.DEFAULT_DISPLAY),
            )
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun wakefulnessLifecycle_dispatchFinishedGoingToSleepSetsSysUIflagToASLEEP() {
        wakefulnessLifecycle.dispatchFinishedGoingToSleep()

        verify(launcherProxy)
            .onSystemUiStateChanged(
                longThat { it and SYSUI_STATE_WAKEFULNESS_MASK == WAKEFULNESS_ASLEEP },
                eq(Display.DEFAULT_DISPLAY),
            )
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun wakefulnessLifecycle_dispatchStartedGoingToSleepSetsSysUIflagToGOING_TO_SLEEP() {
        wakefulnessLifecycle.dispatchStartedGoingToSleep(
            PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON
        )

        verify(launcherProxy)
            .onSystemUiStateChanged(
                longThat { it and SYSUI_STATE_WAKEFULNESS_MASK == WAKEFULNESS_GOING_TO_SLEEP },
                eq(Display.DEFAULT_DISPLAY),
            )
    }

    @Test
    fun navigationBarController_cannotCreateNavBarOrTaskbarSetsSysUIFlagToNAVIGATION_BAR_DISABLED() {
        whenever(navBarController.canCreateNavBarOrTaskBar(anyInt())).thenReturn(false)
        subject.updateSystemUiStateFlags()

        verify(launcherProxy)
            .onSystemUiStateChanged(
                longThat { (it and SYSUI_STATE_NAVIGATION_BAR_DISABLED) != 0L },
                eq(Display.DEFAULT_DISPLAY),
            )
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun connectToLauncherService_primaryUserNoVisibleBgUsersSupported_expectBindService() {
        `when`(processWrapper.isSystemUser).thenReturn(true)
        `when`(userManager.isVisibleBackgroundUsersSupported()).thenReturn(false)
        val spyContext = spy(context)
        val ops = createLauncherProxyService(spyContext)
        ops.startConnectionToCurrentUser()
        verify(spyContext, atLeast(1)).bindServiceAsUser(any(), any(), anyInt(), any())
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun connectToLauncherService_nonPrimaryUserNoVisibleBgUsersSupported_expectNoBindService() {
        `when`(processWrapper.isSystemUser).thenReturn(false)
        `when`(userManager.isVisibleBackgroundUsersSupported()).thenReturn(false)
        val spyContext = spy(context)
        val ops = assertLogsWtf { createLauncherProxyService(spyContext) }.result
        ops.startConnectionToCurrentUser()
        verify(spyContext, times(0)).bindServiceAsUser(any(), any(), anyInt(), any())
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun connectToLauncherService_nonPrimaryBgUserVisibleBgUsersSupported_expectBindService() {
        `when`(processWrapper.isSystemUser).thenReturn(false)
        `when`(userManager.isVisibleBackgroundUsersSupported()).thenReturn(true)
        `when`(userManager.isUserForeground()).thenReturn(false)
        val spyContext = spy(context)
        val ops = createLauncherProxyService(spyContext)
        ops.startConnectionToCurrentUser()
        verify(spyContext, atLeast(1)).bindServiceAsUser(any(), any(), anyInt(), any())
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun connectToLauncherService_nonPrimaryFgUserVisibleBgUsersSupported_expectNoBindService() {
        `when`(processWrapper.isSystemUser).thenReturn(false)
        `when`(userManager.isVisibleBackgroundUsersSupported()).thenReturn(true)
        `when`(userManager.isUserForeground()).thenReturn(true)
        val spyContext = spy(context)
        val ops = assertLogsWtf { createLauncherProxyService(spyContext) }.result
        ops.startConnectionToCurrentUser()
        verify(spyContext, times(0)).bindServiceAsUser(any(), any(), anyInt(), any())
    }

    @Test
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun notifySysUiStateFlagsForAllDisplays_triggersUpdateInAllDisplays() =
        kosmos.testScope.runTest {
            kosmos.displayRepository.apply {
                addDisplay(0)
                addDisplay(1)
                addDisplay(2)
            }
            kosmos.fakeSysUIStatePerDisplayRepository.apply {
                add(1, sysUiStateFactory.create(1))
                add(2, sysUiStateFactory.create(2))
            }
            clearInvocations(launcherProxy)
            subject.notifySysUiStateFlagsForAllDisplays()

            verify(launcherProxy).onSystemUiStateChanged(anyLong(), eq(0))
            verify(launcherProxy).onSystemUiStateChanged(anyLong(), eq(1))
            verify(launcherProxy).onSystemUiStateChanged(anyLong(), eq(2))
        }

    @Test
    @EnableFlags(Flags.FLAG_SHADE_WINDOW_GOES_AROUND)
    @DisableFlags(Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun updateSystemUiStateFlags_updatesAllNavBars() =
        kosmos.testScope.runTest {
            kosmos.displayRepository.apply {
                addDisplay(0)
                addDisplay(1)
            }
            kosmos.fakeSysUIStatePerDisplayRepository.apply { add(1, sysUiStateFactory.create(1)) }
            val navBar0 = mock<NavigationBar>()
            val navBar1 = mock<NavigationBar>()
            whenever(navBarController.getNavigationBar(eq(0))).thenReturn(navBar0)
            whenever(navBarController.getNavigationBar(eq(1))).thenReturn(navBar1)

            subject.updateSystemUiStateFlags()

            verify(navBar0).updateSystemUiStateFlags()
            verify(navBar1).updateSystemUiStateFlags()
        }

    @Test
    @EnableFlags(
        Flags.FLAG_SHADE_WINDOW_GOES_AROUND,
        Flags.FLAG_SCENE_CONTAINER,
        Flags.FLAG_MEDIA_CONTROLS_IN_COMPOSE,
        Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR,
    )
    fun onStatusBarTrackpadEvent_callsOnStatusBarOrLauncherTouched() =
        kosmos.testScope.runTest {
            val shadeDisplayId = 1
            whenever(statusBarShadeDisplayPolicy.displayId)
                .thenReturn(MutableStateFlow(shadeDisplayId))

            val event =
                MotionEvent.obtain(500, 500, MotionEvent.ACTION_MOVE, 500f, 500f, 0).apply {
                    displayId = 0
                }

            whenever(statusBarWinController.windowRootView).thenReturn(mock(ViewGroup::class.java))
            whenever(
                    shadeViewController.handleExternalTouch(
                        argThat<MotionEvent> { displayId == event.displayId }
                    )
                )
                .thenReturn(true)

            subject.mSysUiProxy.onStatusBarTrackpadEvent(event)
            verify(statusBarShadeDisplayPolicy)
                .onStatusBarOrLauncherTouched(
                    argThat<MotionEvent> { displayId == event.displayId },
                    anyInt(),
                )
        }

    @Test
    @EnableFlags(
        Flags.FLAG_SHADE_WINDOW_GOES_AROUND,
        Flags.FLAG_SCENE_CONTAINER,
        Flags.FLAG_MEDIA_CONTROLS_IN_COMPOSE,
        Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR,
    )
    fun onStatusBarTouchEvent_withSceneFlag_callsOnStatusBarOrLauncherTouched() =
        kosmos.testScope.runTest {
            val shadeDisplayId = 1
            whenever(statusBarShadeDisplayPolicy.displayId)
                .thenReturn(MutableStateFlow(shadeDisplayId))

            val event =
                MotionEvent.obtain(500, 500, MotionEvent.ACTION_MOVE, 500f, 500f, 0).apply {
                    displayId = 0
                }

            subject.mSysUiProxy.onStatusBarTouchEvent(event)
            verify(statusBarShadeDisplayPolicy)
                .onStatusBarOrLauncherTouched(
                    argThat<MotionEvent> { displayId == event.displayId },
                    anyInt(),
                )
        }

    @Test
    @EnableFlags(Flags.FLAG_SHADE_WINDOW_GOES_AROUND)
    @DisableFlags(Flags.FLAG_SCENE_CONTAINER, Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun onStatusBarTouchEvent_withoutSceneFlag_onDifferentDisplayTouch_ignoresInput() =
        kosmos.testScope.runTest {
            val shadeDisplayId = 1
            whenever(statusBarShadeDisplayPolicy.displayId)
                .thenReturn(MutableStateFlow(shadeDisplayId))

            val event =
                MotionEvent.obtain(500, 500, MotionEvent.ACTION_DOWN, 500f, 500f, 0).apply {
                    displayId = 0
                }

            subject.mSysUiProxy.onStatusBarTouchEvent(event)

            verify(shadeViewController, never()).startExpandLatencyTracking()
        }

    @Test
    @EnableFlags(Flags.FLAG_SHADE_WINDOW_GOES_AROUND)
    @DisableFlags(Flags.FLAG_SCENE_CONTAINER, Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun onStatusBarTouchEvent_withoutSceneFlag_dispatchesToShadeDisplayPolicy() =
        kosmos.testScope.runTest {
            val shadeDisplayId = 1
            whenever(statusBarShadeDisplayPolicy.displayId)
                .thenReturn(MutableStateFlow(shadeDisplayId))

            val event =
                MotionEvent.obtain(500, 500, MotionEvent.ACTION_DOWN, 500f, 500f, 0).apply {
                    displayId = 0
                }

            subject.mSysUiProxy.onStatusBarTouchEvent(event)
            verify(statusBarShadeDisplayPolicy)
                .onStatusBarOrLauncherTouched(argThat<MotionEvent> { displayId == 0 }, anyInt())
        }

    @Test
    @EnableFlags(Flags.FLAG_SHADE_WINDOW_GOES_AROUND)
    @DisableFlags(Flags.FLAG_SCENE_CONTAINER, Flags.FLAG_KEYGUARD_WM_STATE_REFACTOR)
    fun onStatusBarTouchEvent_withoutSceneFlag_onSameDisplayTouch_handlesInput() =
        kosmos.testScope.runTest {
            val shadeDisplayId = 0
            whenever(statusBarShadeDisplayPolicy.displayId)
                .thenReturn(MutableStateFlow(shadeDisplayId))

            val event =
                MotionEvent.obtain(500, 500, MotionEvent.ACTION_DOWN, 500f, 500f, 0).apply {
                    displayId = shadeDisplayId
                }

            subject.mSysUiProxy.onStatusBarTouchEvent(event)
            verify(statusBarShadeDisplayPolicy)
                .onStatusBarOrLauncherTouched(
                    argThat<MotionEvent> { displayId == shadeDisplayId },
                    anyInt(),
                )
            verify(shadeViewController).startExpandLatencyTracking()
        }

    private fun createLauncherProxyService(ctx: Context): LauncherProxyService {
        whenever(navBarController.canCreateNavBarOrTaskBar(anyInt())).thenReturn(true)
        return LauncherProxyService(
            ctx,
            executor,
            commandQueue,
            shellInterface,
            { navBarController },
            { shadeViewController },
            screenPinningRequest,
            navModeController,
            statusBarWinController,
            kosmos.fakeSysUIStatePerDisplayRepository,
            { sceneInteractor },
            { kosmos.shadeInteractor },
            { kosmos.shadeModeInteractor },
            statusBarShadeDisplayPolicy,
            userTracker,
            userManager,
            wakefulnessLifecycle,
            uiEventLogger,
            displayTracker,
            sysuiUnlockAnimationController,
            inWindowLauncherUnlockAnimationManager,
            assistUtils,
            dumpManager,
            unfoldTransitionProgressForwarder,
            broadcastDispatcher,
            backAnimation,
            processWrapper,
            kosmos.displayRepository,
            desktopState,
            fakeHeadlessSystemUserMode,
        )
    }
}