/*
 * Copyright (C) 2022 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.shade

import android.animation.Animator
import android.app.AlarmManager
import android.app.PendingIntent
import android.app.StatusBarManager
import android.content.Context
import android.content.res.Resources
import android.content.res.XmlResourceParser
import android.graphics.Insets
import android.graphics.Rect
import android.testing.AndroidTestingRunner
import android.view.Display
import android.view.DisplayCutout
import android.view.View
import android.view.ViewPropertyAnimator
import android.view.WindowInsets
import android.widget.LinearLayout
import android.widget.TextView
import androidx.constraintlayout.motion.widget.MotionLayout
import androidx.constraintlayout.widget.ConstraintSet
import androidx.test.filters.SmallTest
import com.android.app.animation.Interpolators
import com.android.systemui.SysuiTestCase
import com.android.systemui.animation.ShadeInterpolation
import com.android.systemui.battery.BatteryMeterView
import com.android.systemui.battery.BatteryMeterViewController
import com.android.systemui.demomode.DemoMode
import com.android.systemui.demomode.DemoModeController
import com.android.systemui.dump.DumpManager
import com.android.systemui.plugins.ActivityStarter
import com.android.systemui.qs.ChipVisibilityListener
import com.android.systemui.qs.HeaderPrivacyIconsController
import com.android.systemui.res.R
import com.android.systemui.shade.ShadeHeaderController.Companion.DEFAULT_CLOCK_INTENT
import com.android.systemui.shade.ShadeHeaderController.Companion.LARGE_SCREEN_HEADER_CONSTRAINT
import com.android.systemui.shade.ShadeHeaderController.Companion.QQS_HEADER_CONSTRAINT
import com.android.systemui.shade.ShadeHeaderController.Companion.QS_HEADER_CONSTRAINT
import com.android.systemui.shade.carrier.ShadeCarrierGroup
import com.android.systemui.shade.carrier.ShadeCarrierGroupController
import com.android.systemui.statusbar.phone.StatusBarContentInsetsProvider
import com.android.systemui.statusbar.phone.StatusIconContainer
import com.android.systemui.statusbar.phone.StatusOverlayHoverListenerFactory
import com.android.systemui.statusbar.phone.ui.StatusBarIconController
import com.android.systemui.statusbar.phone.ui.TintedIconManager
import com.android.systemui.statusbar.policy.Clock
import com.android.systemui.statusbar.policy.FakeConfigurationController
import com.android.systemui.statusbar.policy.NextAlarmController
import com.android.systemui.statusbar.policy.VariableDateView
import com.android.systemui.statusbar.policy.VariableDateViewController
import com.android.systemui.util.mockito.any
import com.android.systemui.util.mockito.argumentCaptor
import com.android.systemui.util.mockito.capture
import com.android.systemui.util.mockito.eq
import com.android.systemui.util.mockito.mock
import com.google.common.truth.Truth.assertThat
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.Answers
import org.mockito.ArgumentCaptor
import org.mockito.ArgumentMatchers.anyFloat
import org.mockito.ArgumentMatchers.anyInt
import org.mockito.Captor
import org.mockito.Mock
import org.mockito.Mockito
import org.mockito.Mockito.mock
import org.mockito.Mockito.reset
import org.mockito.Mockito.times
import org.mockito.Mockito.verify
import org.mockito.Mockito.`when` as whenever
import org.mockito.junit.MockitoJUnit

private val EMPTY_CHANGES = ConstraintsChanges()

@SmallTest
@RunWith(AndroidTestingRunner::class)
class ShadeHeaderControllerTest : SysuiTestCase() {

    @Mock(answer = Answers.RETURNS_MOCKS) private lateinit var view: MotionLayout
    @Mock private lateinit var statusIcons: StatusIconContainer
    @Mock private lateinit var statusBarIconController: StatusBarIconController
    @Mock private lateinit var iconManagerFactory: TintedIconManager.Factory
    @Mock private lateinit var iconManager: TintedIconManager
    @Mock private lateinit var mShadeCarrierGroupController: ShadeCarrierGroupController
    @Mock
    private lateinit var mShadeCarrierGroupControllerBuilder: ShadeCarrierGroupController.Builder
    @Mock private lateinit var clock: Clock
    @Mock private lateinit var date: VariableDateView
    @Mock private lateinit var carrierGroup: ShadeCarrierGroup
    @Mock private lateinit var batteryMeterView: BatteryMeterView
    @Mock private lateinit var batteryMeterViewController: BatteryMeterViewController
    @Mock private lateinit var privacyIconsController: HeaderPrivacyIconsController
    @Mock private lateinit var insetsProvider: StatusBarContentInsetsProvider
    @Mock private lateinit var variableDateViewControllerFactory: VariableDateViewController.Factory
    @Mock private lateinit var variableDateViewController: VariableDateViewController
    @Mock private lateinit var dumpManager: DumpManager
    @Mock
    private lateinit var combinedShadeHeadersConstraintManager:
        CombinedShadeHeadersConstraintManager

    @Mock private lateinit var mockedContext: Context
    private lateinit var viewContext: Context

    @Mock private lateinit var qqsConstraints: ConstraintSet
    @Mock private lateinit var qsConstraints: ConstraintSet
    @Mock private lateinit var largeScreenConstraints: ConstraintSet

    @Mock private lateinit var demoModeController: DemoModeController
    @Mock private lateinit var qsBatteryModeController: QsBatteryModeController
    @Mock private lateinit var nextAlarmController: NextAlarmController
    @Mock private lateinit var activityStarter: ActivityStarter
    @Mock private lateinit var mStatusOverlayHoverListenerFactory: StatusOverlayHoverListenerFactory

    @JvmField @Rule val mockitoRule = MockitoJUnit.rule()
    var viewVisibility = View.GONE
    var viewAlpha = 1f

    private val systemIconsHoverContainer = LinearLayout(context)
    private lateinit var shadeHeaderController: ShadeHeaderController
    private lateinit var carrierIconSlots: List<String>
    private val configurationController = FakeConfigurationController()
    @Captor private lateinit var demoModeControllerCapture: ArgumentCaptor<DemoMode>

    @Before
    fun setup() {
        whenever<Clock>(view.requireViewById(R.id.clock)).thenReturn(clock)
        whenever(clock.context).thenReturn(mockedContext)

        whenever<TextView>(view.requireViewById(R.id.date)).thenReturn(date)
        whenever(date.context).thenReturn(mockedContext)

        whenever<ShadeCarrierGroup>(view.requireViewById(R.id.carrier_group))
            .thenReturn(carrierGroup)

        whenever<BatteryMeterView>(view.requireViewById(R.id.batteryRemainingIcon))
            .thenReturn(batteryMeterView)

        whenever<StatusIconContainer>(view.requireViewById(R.id.statusIcons))
            .thenReturn(statusIcons)
        whenever<View>(view.requireViewById(R.id.hover_system_icons_container))
            .thenReturn(systemIconsHoverContainer)

        viewContext = Mockito.spy(context)
        whenever(view.context).thenReturn(viewContext)
        whenever(view.resources).thenReturn(context.resources)
        whenever(statusIcons.context).thenReturn(context)
        whenever(mShadeCarrierGroupControllerBuilder.setShadeCarrierGroup(any()))
            .thenReturn(mShadeCarrierGroupControllerBuilder)
        whenever(mShadeCarrierGroupControllerBuilder.build())
            .thenReturn(mShadeCarrierGroupController)
        whenever(view.setVisibility(anyInt())).then {
            viewVisibility = it.arguments[0] as Int
            null
        }
        whenever(view.visibility).thenAnswer { _ -> viewVisibility }

        whenever(view.setAlpha(anyFloat())).then {
            viewAlpha = it.arguments[0] as Float
            null
        }
        whenever(view.alpha).thenAnswer { _ -> viewAlpha }

        whenever(variableDateViewControllerFactory.create(any()))
            .thenReturn(variableDateViewController)
        whenever(iconManagerFactory.create(any(), any())).thenReturn(iconManager)

        setUpDefaultInsets()
        setUpMotionLayout(view)

        shadeHeaderController =
            ShadeHeaderController(
                view,
                statusBarIconController,
                iconManagerFactory,
                privacyIconsController,
                insetsProvider,
                configurationController,
                variableDateViewControllerFactory,
                batteryMeterViewController,
                dumpManager,
                mShadeCarrierGroupControllerBuilder,
                combinedShadeHeadersConstraintManager,
                demoModeController,
                qsBatteryModeController,
                nextAlarmController,
                activityStarter,
                mStatusOverlayHoverListenerFactory
            )
        whenever(view.isAttachedToWindow).thenReturn(true)
        shadeHeaderController.init()
        carrierIconSlots =
            listOf(context.getString(com.android.internal.R.string.status_bar_mobile))
    }

    @Test
    fun updateListeners_registersWhenVisible() {
        makeShadeVisible()
        verify(mShadeCarrierGroupController).setListening(true)
        verify(statusBarIconController).addIconGroup(any())
    }

    @Test
    fun statusIconsAddedWhenAttached() {
        verify(statusBarIconController).addIconGroup(any())
    }

    @Test
    fun statusIconsRemovedWhenDettached() {
        shadeHeaderController.simulateViewDetached()
        verify(statusBarIconController).removeIconGroup(any())
    }

    @Test
    fun shadeExpandedFraction_updatesAlpha() {
        makeShadeVisible()
        shadeHeaderController.shadeExpandedFraction = 0.5f
        verify(view).setAlpha(ShadeInterpolation.getContentAlpha(0.5f))
    }

    @Test
    fun singleCarrier_enablesCarrierIconsInStatusIcons() {
        whenever(mShadeCarrierGroupController.isSingleCarrier).thenReturn(true)

        makeShadeVisible()

        verify(statusIcons).removeIgnoredSlots(carrierIconSlots)
    }

    @Test
    fun dualCarrier_disablesCarrierIconsInStatusIcons() {
        whenever(mShadeCarrierGroupController.isSingleCarrier).thenReturn(false)

        makeShadeVisible()
        shadeHeaderController.qsExpandedFraction = 1.0f

        verify(statusIcons).addIgnoredSlots(carrierIconSlots)
    }

    @Test
    fun dualCarrier_enablesCarrierIconsInStatusIcons_qsExpanded() {
        whenever(mShadeCarrierGroupController.isSingleCarrier).thenReturn(false)

        makeShadeVisible()
        shadeHeaderController.qsExpandedFraction = 0.0f

        verify(statusIcons, times(2)).removeIgnoredSlots(carrierIconSlots)
    }

    @Test
    fun disableQS_notDisabled_visible() {
        makeShadeVisible()
        shadeHeaderController.disable(0, 0, false)

        assertThat(viewVisibility).isEqualTo(View.VISIBLE)
    }

    @Test
    fun disableQS_disabled_gone() {
        makeShadeVisible()
        shadeHeaderController.disable(0, StatusBarManager.DISABLE2_QUICK_SETTINGS, false)

        assertThat(viewVisibility).isEqualTo(View.GONE)
    }

    private fun makeShadeVisible() {
        shadeHeaderController.largeScreenActive = true
        shadeHeaderController.qsVisible = true
    }

    @Test
    fun updateConfig_changesFontStyle() {
        configurationController.notifyDensityOrFontScaleChanged()

        verify(clock).setTextAppearance(R.style.TextAppearance_QS_Status)
        verify(date).setTextAppearance(R.style.TextAppearance_QS_Status)
        verify(carrierGroup).updateTextAppearance(R.style.TextAppearance_QS_Status_Carriers)
    }

    @Test
    fun animateOutOnStartCustomizing() {
        val animator = mock(ViewPropertyAnimator::class.java, Answers.RETURNS_SELF)
        val duration = 1000L
        whenever(view.animate()).thenReturn(animator)

        shadeHeaderController.startCustomizingAnimation(show = true, duration)

        verify(animator).setDuration(duration)
        verify(animator).alpha(0f)
        verify(animator).setInterpolator(Interpolators.ALPHA_OUT)
        verify(animator).start()
    }

    @Test
    fun animateInOnEndCustomizing() {
        val animator = mock(ViewPropertyAnimator::class.java, Answers.RETURNS_SELF)
        val duration = 1000L
        whenever(view.animate()).thenReturn(animator)

        shadeHeaderController.startCustomizingAnimation(show = false, duration)

        verify(animator).setDuration(duration)
        verify(animator).alpha(1f)
        verify(animator).setInterpolator(Interpolators.ALPHA_IN)
        verify(animator).start()
    }

    @Test
    fun customizerAnimatorChangesViewVisibility() {
        makeShadeVisible()

        val animator = mock(ViewPropertyAnimator::class.java, Answers.RETURNS_SELF)
        val duration = 1000L
        whenever(view.animate()).thenReturn(animator)
        val listenerCaptor = argumentCaptor<Animator.AnimatorListener>()

        shadeHeaderController.startCustomizingAnimation(show = true, duration)
        verify(animator).setListener(capture(listenerCaptor))
        // Start and end the animation
        listenerCaptor.value.onAnimationStart(mock())
        listenerCaptor.value.onAnimationEnd(mock())
        assertThat(viewVisibility).isEqualTo(View.INVISIBLE)

        reset(animator)
        shadeHeaderController.startCustomizingAnimation(show = false, duration)
        verify(animator).setListener(capture(listenerCaptor))
        // Start and end the animation
        listenerCaptor.value.onAnimationStart(mock())
        listenerCaptor.value.onAnimationEnd(mock())
        assertThat(viewVisibility).isEqualTo(View.VISIBLE)
    }

    @Test
    fun animatorListenersClearedAtEnd() {
        val animator = mock(ViewPropertyAnimator::class.java, Answers.RETURNS_SELF)
        whenever(view.animate()).thenReturn(animator)

        shadeHeaderController.startCustomizingAnimation(show = true, 0L)
        val listenerCaptor = argumentCaptor<Animator.AnimatorListener>()
        verify(animator).setListener(capture(listenerCaptor))

        listenerCaptor.value.onAnimationEnd(mock())
        verify(animator).setListener(null)
    }

    @Test
    fun demoMode_attachDemoMode() {
        val cb = argumentCaptor<DemoMode>()
        verify(demoModeController).addCallback(capture(cb))
        cb.value.onDemoModeStarted()
        verify(clock).onDemoModeStarted()
    }

    @Test
    fun demoMode_detachDemoMode() {
        shadeHeaderController.simulateViewDetached()
        val cb = argumentCaptor<DemoMode>()
        verify(demoModeController).removeCallback(capture(cb))
        cb.value.onDemoModeFinished()
        verify(clock).onDemoModeFinished()
    }

    @Test
    fun testControllersCreatedAndInitialized() {
        verify(variableDateViewController).init()

        verify(batteryMeterViewController).init()
        verify(batteryMeterViewController).ignoreTunerUpdates()

        val inOrder = Mockito.inOrder(mShadeCarrierGroupControllerBuilder)
        inOrder.verify(mShadeCarrierGroupControllerBuilder).setShadeCarrierGroup(carrierGroup)
        inOrder.verify(mShadeCarrierGroupControllerBuilder).build()
    }

    @Test
    fun batteryModeControllerCalledWhenQsExpandedFractionChanges() {
        whenever(qsBatteryModeController.getBatteryMode(Mockito.same(null), eq(0f)))
            .thenReturn(BatteryMeterView.MODE_ON)
        whenever(qsBatteryModeController.getBatteryMode(Mockito.same(null), eq(1f)))
            .thenReturn(BatteryMeterView.MODE_ESTIMATE)
        shadeHeaderController.qsVisible = true

        val times = 10
        repeat(times) { shadeHeaderController.qsExpandedFraction = it / (times - 1).toFloat() }

        verify(batteryMeterView).setPercentShowMode(BatteryMeterView.MODE_ON)
        verify(batteryMeterView).setPercentShowMode(BatteryMeterView.MODE_ESTIMATE)
    }

    @Test
    fun testClockPivotLtr() {
        val width = 200
        whenever(clock.width).thenReturn(width)
        whenever(clock.isLayoutRtl).thenReturn(false)

        val captor = ArgumentCaptor.forClass(View.OnLayoutChangeListener::class.java)
        verify(clock, times(2)).addOnLayoutChangeListener(capture(captor))

        captor.value.onLayoutChange(clock, 0, 1, 2, 3, 4, 5, 6, 7)
        verify(clock).pivotX = 0f
    }

    @Test
    fun testClockPivotRtl() {
        val width = 200
        whenever(clock.width).thenReturn(width)
        whenever(clock.isLayoutRtl).thenReturn(true)

        val captor = ArgumentCaptor.forClass(View.OnLayoutChangeListener::class.java)
        verify(clock, times(2)).addOnLayoutChangeListener(capture(captor))

        captor.value.onLayoutChange(clock, 0, 1, 2, 3, 4, 5, 6, 7)
        verify(clock).pivotX = width.toFloat()
    }

    @Test
    fun testShadeExpanded_true() {
        // When shade is expanded, view should be visible regardless of largeScreenActive
        shadeHeaderController.largeScreenActive = false
        shadeHeaderController.qsVisible = true
        assertThat(viewVisibility).isEqualTo(View.VISIBLE)

        shadeHeaderController.largeScreenActive = true
        assertThat(viewVisibility).isEqualTo(View.VISIBLE)
    }

    @Test
    fun testShadeExpanded_false() {
        // When shade is not expanded, view should be invisible regardless of largeScreenActive
        shadeHeaderController.largeScreenActive = false
        shadeHeaderController.qsVisible = false
        assertThat(viewVisibility).isEqualTo(View.INVISIBLE)

        shadeHeaderController.largeScreenActive = true
        assertThat(viewVisibility).isEqualTo(View.INVISIBLE)
    }

    @Test
    fun testLargeScreenActive_false() {
        shadeHeaderController.largeScreenActive = true // Make sure there's a change
        Mockito.clearInvocations(view)

        shadeHeaderController.largeScreenActive = false

        verify(view).setTransition(ShadeHeaderController.HEADER_TRANSITION_ID)
    }

    @Test
    fun testLargeScreenActive_collapseActionRun_onSystemIconsHoverContainerClick() {
        shadeHeaderController.largeScreenActive = true
        var wasRun = false
        shadeHeaderController.shadeCollapseAction = Runnable { wasRun = true }

        systemIconsHoverContainer.performClick()

        assertThat(wasRun).isTrue()
    }

    @Test
    fun testShadeExpandedFraction() {
        // View needs to be visible for this to actually take effect
        shadeHeaderController.qsVisible = true

        Mockito.clearInvocations(view)
        shadeHeaderController.shadeExpandedFraction = 0.3f
        verify(view).alpha = ShadeInterpolation.getContentAlpha(0.3f)

        Mockito.clearInvocations(view)
        shadeHeaderController.shadeExpandedFraction = 1f
        verify(view).alpha = ShadeInterpolation.getContentAlpha(1f)

        Mockito.clearInvocations(view)
        shadeHeaderController.shadeExpandedFraction = 0f
        verify(view).alpha = ShadeInterpolation.getContentAlpha(0f)
    }

    @Test
    fun testQsExpandedFraction_headerTransition() {
        shadeHeaderController.qsVisible = true
        shadeHeaderController.largeScreenActive = false

        Mockito.clearInvocations(view)
        shadeHeaderController.qsExpandedFraction = 0.3f
        verify(view).progress = 0.3f
    }

    @Test
    fun testQsExpandedFraction_largeScreen() {
        shadeHeaderController.qsVisible = true
        shadeHeaderController.largeScreenActive = true

        Mockito.clearInvocations(view)
        shadeHeaderController.qsExpandedFraction = 0.3f
        verify(view, Mockito.never()).progress = anyFloat()
    }

    @Test
    fun testScrollY_headerTransition() {
        shadeHeaderController.largeScreenActive = false

        Mockito.clearInvocations(view)
        shadeHeaderController.qsScrollY = 20
        verify(view).scrollY = 20
    }

    @Test
    fun testScrollY_largeScreen() {
        shadeHeaderController.largeScreenActive = true

        Mockito.clearInvocations(view)
        shadeHeaderController.qsScrollY = 20
        verify(view, Mockito.never()).scrollY = anyInt()
    }

    @Test
    fun testPrivacyChipVisibilityChanged_visible_changesCorrectConstraints() {
        val chipVisibleChanges = createMockConstraintChanges()
        val chipNotVisibleChanges = createMockConstraintChanges()

        whenever(combinedShadeHeadersConstraintManager.privacyChipVisibilityConstraints(true))
            .thenReturn(chipVisibleChanges)
        whenever(combinedShadeHeadersConstraintManager.privacyChipVisibilityConstraints(false))
            .thenReturn(chipNotVisibleChanges)

        val captor = ArgumentCaptor.forClass(ChipVisibilityListener::class.java)
        verify(privacyIconsController).chipVisibilityListener = capture(captor)

        captor.value.onChipVisibilityRefreshed(true)

        verify(chipVisibleChanges.qqsConstraintsChanges)!!.invoke(qqsConstraints)
        verify(chipVisibleChanges.qsConstraintsChanges)!!.invoke(qsConstraints)
        verify(chipVisibleChanges.largeScreenConstraintsChanges)!!.invoke(largeScreenConstraints)

        verify(chipNotVisibleChanges.qqsConstraintsChanges, Mockito.never())!!.invoke(any())
        verify(chipNotVisibleChanges.qsConstraintsChanges, Mockito.never())!!.invoke(any())
        verify(chipNotVisibleChanges.largeScreenConstraintsChanges, Mockito.never())!!.invoke(any())
    }

    @Test
    fun testPrivacyChipVisibilityChanged_notVisible_changesCorrectConstraints() {
        val chipVisibleChanges = createMockConstraintChanges()
        val chipNotVisibleChanges = createMockConstraintChanges()

        whenever(combinedShadeHeadersConstraintManager.privacyChipVisibilityConstraints(true))
            .thenReturn(chipVisibleChanges)
        whenever(combinedShadeHeadersConstraintManager.privacyChipVisibilityConstraints(false))
            .thenReturn(chipNotVisibleChanges)

        val captor = ArgumentCaptor.forClass(ChipVisibilityListener::class.java)
        verify(privacyIconsController).chipVisibilityListener = capture(captor)

        captor.value.onChipVisibilityRefreshed(false)

        verify(chipVisibleChanges.qqsConstraintsChanges, Mockito.never())!!.invoke(qqsConstraints)
        verify(chipVisibleChanges.qsConstraintsChanges, Mockito.never())!!.invoke(qsConstraints)
        verify(chipVisibleChanges.largeScreenConstraintsChanges, Mockito.never())!!.invoke(
            largeScreenConstraints
        )

        verify(chipNotVisibleChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(chipNotVisibleChanges.qsConstraintsChanges)!!.invoke(any())
        verify(chipNotVisibleChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun testInsetsGuides_ltr() {
        whenever(view.isLayoutRtl).thenReturn(false)
        val captor = ArgumentCaptor.forClass(View.OnApplyWindowInsetsListener::class.java)
        verify(view).setOnApplyWindowInsetsListener(capture(captor))
        val mockConstraintsChanges = createMockConstraintChanges()

        val (insetLeft, insetRight) = 30 to 40
        val (paddingStart, paddingEnd) = 10 to 20
        whenever(view.paddingStart).thenReturn(paddingStart)
        whenever(view.paddingEnd).thenReturn(paddingEnd)

        mockInsetsProvider(insetLeft to insetRight, false)

        whenever(
                combinedShadeHeadersConstraintManager.edgesGuidelinesConstraints(
                    anyInt(),
                    anyInt(),
                    anyInt(),
                    anyInt()
                )
            )
            .thenReturn(mockConstraintsChanges)

        captor.value.onApplyWindowInsets(view, createWindowInsets())

        verify(combinedShadeHeadersConstraintManager)
            .edgesGuidelinesConstraints(insetLeft, paddingStart, insetRight, paddingEnd)

        verify(mockConstraintsChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.qsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun testInsetsGuides_rtl() {
        whenever(view.isLayoutRtl).thenReturn(true)
        val captor = ArgumentCaptor.forClass(View.OnApplyWindowInsetsListener::class.java)
        verify(view).setOnApplyWindowInsetsListener(capture(captor))
        val mockConstraintsChanges = createMockConstraintChanges()

        val (insetLeft, insetRight) = 30 to 40
        val (paddingStart, paddingEnd) = 10 to 20
        whenever(view.paddingStart).thenReturn(paddingStart)
        whenever(view.paddingEnd).thenReturn(paddingEnd)

        mockInsetsProvider(insetLeft to insetRight, false)

        whenever(
                combinedShadeHeadersConstraintManager.edgesGuidelinesConstraints(
                    anyInt(),
                    anyInt(),
                    anyInt(),
                    anyInt()
                )
            )
            .thenReturn(mockConstraintsChanges)

        captor.value.onApplyWindowInsets(view, createWindowInsets())

        verify(combinedShadeHeadersConstraintManager)
            .edgesGuidelinesConstraints(insetRight, paddingStart, insetLeft, paddingEnd)

        verify(mockConstraintsChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.qsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun testNullCutout() {
        val captor = ArgumentCaptor.forClass(View.OnApplyWindowInsetsListener::class.java)
        verify(view).setOnApplyWindowInsetsListener(capture(captor))
        val mockConstraintsChanges = createMockConstraintChanges()

        whenever(combinedShadeHeadersConstraintManager.emptyCutoutConstraints())
            .thenReturn(mockConstraintsChanges)

        captor.value.onApplyWindowInsets(view, createWindowInsets(null))

        verify(combinedShadeHeadersConstraintManager).emptyCutoutConstraints()
        verify(combinedShadeHeadersConstraintManager, Mockito.never())
            .centerCutoutConstraints(Mockito.anyBoolean(), anyInt())

        verify(mockConstraintsChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.qsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun testEmptyCutout() {
        val captor = ArgumentCaptor.forClass(View.OnApplyWindowInsetsListener::class.java)
        verify(view).setOnApplyWindowInsetsListener(capture(captor))
        val mockConstraintsChanges = createMockConstraintChanges()

        whenever(combinedShadeHeadersConstraintManager.emptyCutoutConstraints())
            .thenReturn(mockConstraintsChanges)

        captor.value.onApplyWindowInsets(view, createWindowInsets())

        verify(combinedShadeHeadersConstraintManager).emptyCutoutConstraints()
        verify(combinedShadeHeadersConstraintManager, Mockito.never())
            .centerCutoutConstraints(Mockito.anyBoolean(), anyInt())

        verify(mockConstraintsChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.qsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun testCornerCutout_emptyRect() {
        val captor = ArgumentCaptor.forClass(View.OnApplyWindowInsetsListener::class.java)
        verify(view).setOnApplyWindowInsetsListener(capture(captor))
        val mockConstraintsChanges = createMockConstraintChanges()

        mockInsetsProvider(0 to 0, true)

        whenever(combinedShadeHeadersConstraintManager.emptyCutoutConstraints())
            .thenReturn(mockConstraintsChanges)

        captor.value.onApplyWindowInsets(view, createWindowInsets())

        verify(combinedShadeHeadersConstraintManager).emptyCutoutConstraints()
        verify(combinedShadeHeadersConstraintManager, Mockito.never())
            .centerCutoutConstraints(Mockito.anyBoolean(), anyInt())

        verify(mockConstraintsChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.qsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun testCornerCutout_nonEmptyRect() {
        val captor = ArgumentCaptor.forClass(View.OnApplyWindowInsetsListener::class.java)
        verify(view).setOnApplyWindowInsetsListener(capture(captor))
        val mockConstraintsChanges = createMockConstraintChanges()

        mockInsetsProvider(0 to 0, true)

        whenever(combinedShadeHeadersConstraintManager.emptyCutoutConstraints())
            .thenReturn(mockConstraintsChanges)

        captor.value.onApplyWindowInsets(view, createWindowInsets(Rect(1, 2, 3, 4)))

        verify(combinedShadeHeadersConstraintManager).emptyCutoutConstraints()
        verify(combinedShadeHeadersConstraintManager, Mockito.never())
            .centerCutoutConstraints(Mockito.anyBoolean(), anyInt())

        verify(mockConstraintsChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.qsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun testTopCutout_ltr() {
        val width = 100
        val paddingLeft = 10
        val paddingRight = 20
        val cutoutWidth = 30

        whenever(view.isLayoutRtl).thenReturn(false)
        whenever(view.width).thenReturn(width)
        whenever(view.paddingLeft).thenReturn(paddingLeft)
        whenever(view.paddingRight).thenReturn(paddingRight)

        val captor = ArgumentCaptor.forClass(View.OnApplyWindowInsetsListener::class.java)
        verify(view).setOnApplyWindowInsetsListener(capture(captor))
        val mockConstraintsChanges = createMockConstraintChanges()

        mockInsetsProvider(0 to 0, false)

        whenever(
                combinedShadeHeadersConstraintManager.centerCutoutConstraints(
                    Mockito.anyBoolean(),
                    anyInt()
                )
            )
            .thenReturn(mockConstraintsChanges)

        captor.value.onApplyWindowInsets(view, createWindowInsets(Rect(0, 0, cutoutWidth, 1)))

        verify(combinedShadeHeadersConstraintManager, Mockito.never()).emptyCutoutConstraints()
        val offset = (width - paddingLeft - paddingRight - cutoutWidth) / 2
        verify(combinedShadeHeadersConstraintManager).centerCutoutConstraints(false, offset)

        verify(mockConstraintsChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.qsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun testTopCutout_rtl() {
        val width = 100
        val paddingLeft = 10
        val paddingRight = 20
        val cutoutWidth = 30

        whenever(view.isLayoutRtl).thenReturn(true)
        whenever(view.width).thenReturn(width)
        whenever(view.paddingLeft).thenReturn(paddingLeft)
        whenever(view.paddingRight).thenReturn(paddingRight)

        val captor = ArgumentCaptor.forClass(View.OnApplyWindowInsetsListener::class.java)
        verify(view).setOnApplyWindowInsetsListener(capture(captor))
        val mockConstraintsChanges = createMockConstraintChanges()

        mockInsetsProvider(0 to 0, false)

        whenever(
                combinedShadeHeadersConstraintManager.centerCutoutConstraints(
                    Mockito.anyBoolean(),
                    anyInt()
                )
            )
            .thenReturn(mockConstraintsChanges)

        captor.value.onApplyWindowInsets(view, createWindowInsets(Rect(0, 0, cutoutWidth, 1)))

        verify(combinedShadeHeadersConstraintManager, Mockito.never()).emptyCutoutConstraints()
        val offset = (width - paddingLeft - paddingRight - cutoutWidth) / 2
        verify(combinedShadeHeadersConstraintManager).centerCutoutConstraints(true, offset)

        verify(mockConstraintsChanges.qqsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.qsConstraintsChanges)!!.invoke(any())
        verify(mockConstraintsChanges.largeScreenConstraintsChanges)!!.invoke(any())
    }

    @Test
    fun alarmIconNotIgnored() {
        verify(statusIcons, Mockito.never())
            .addIgnoredSlot(context.getString(com.android.internal.R.string.status_bar_alarm_clock))
    }

    @Test
    fun privacyChipParentVisibleFromStart() {
        verify(privacyIconsController).onParentVisible()
    }

    @Test
    fun privacyChipParentVisibleAlways() {
        shadeHeaderController.largeScreenActive = true
        shadeHeaderController.largeScreenActive = false
        shadeHeaderController.largeScreenActive = true

        verify(privacyIconsController, Mockito.never()).onParentInvisible()
    }

    @Test
    fun clockPivotYInCenter() {
        val captor = ArgumentCaptor.forClass(View.OnLayoutChangeListener::class.java)
        verify(clock, times(2)).addOnLayoutChangeListener(capture(captor))
        var height = 100
        val width = 50

        clock.executeLayoutChange(0, 0, width, height, captor.value)
        verify(clock).pivotY = height.toFloat() / 2

        height = 150
        clock.executeLayoutChange(0, 0, width, height, captor.value)
        verify(clock).pivotY = height.toFloat() / 2
    }

    @Test
    fun onDensityOrFontScaleChanged_reloadConstraints() {
        // After density or font scale change, constraints need to be reloaded to reflect new
        // dimensions.
        Mockito.reset(qqsConstraints)
        Mockito.reset(qsConstraints)
        Mockito.reset(largeScreenConstraints)

        configurationController.notifyDensityOrFontScaleChanged()

        val captor = ArgumentCaptor.forClass(XmlResourceParser::class.java)
        verify(qqsConstraints).load(eq(viewContext), capture(captor))
        assertThat(captor.value.getResId()).isEqualTo(R.xml.qqs_header)
        verify(qsConstraints).load(eq(viewContext), capture(captor))
        assertThat(captor.value.getResId()).isEqualTo(R.xml.qs_header)
        verify(largeScreenConstraints).load(eq(viewContext), capture(captor))
        assertThat(captor.value.getResId()).isEqualTo(R.xml.large_screen_shade_header)
    }

    @Test
    fun carrierStartPaddingIsSetOnClockLayout() {
        val clockWidth = 200
        val maxClockScale = context.resources.getFloat(R.dimen.qqs_expand_clock_scale)
        val expectedStartPadding = (clockWidth * maxClockScale).toInt()
        whenever(clock.width).thenReturn(clockWidth)

        val captor = ArgumentCaptor.forClass(View.OnLayoutChangeListener::class.java)
        verify(clock, times(2)).addOnLayoutChangeListener(capture(captor))
        captor.allValues.forEach { clock.executeLayoutChange(0, 0, clockWidth, 0, it) }

        verify(carrierGroup).setPaddingRelative(expectedStartPadding, 0, 0, 0)
    }

    @Test
    fun launchClock_launchesDefaultIntentWhenNoAlarmSet() {
        shadeHeaderController.launchClockActivity()

        verify(activityStarter).postStartActivityDismissingKeyguard(DEFAULT_CLOCK_INTENT, 0)
    }

    @Test
    fun launchClock_launchesNextAlarmWhenExists() {
        val pendingIntent = mock<PendingIntent>()
        val aci = AlarmManager.AlarmClockInfo(12345, pendingIntent)
        val captor =
            ArgumentCaptor.forClass(NextAlarmController.NextAlarmChangeCallback::class.java)

        verify(nextAlarmController).addCallback(capture(captor))
        captor.value.onNextAlarmChanged(aci)

        shadeHeaderController.launchClockActivity()

        verify(activityStarter).postStartActivityDismissingKeyguard(pendingIntent)
    }

    private fun View.executeLayoutChange(
        left: Int,
        top: Int,
        right: Int,
        bottom: Int,
        listener: View.OnLayoutChangeListener
    ) {
        val oldLeft = this.left
        val oldTop = this.top
        val oldRight = this.right
        val oldBottom = this.bottom
        whenever(this.left).thenReturn(left)
        whenever(this.top).thenReturn(top)
        whenever(this.right).thenReturn(right)
        whenever(this.bottom).thenReturn(bottom)
        whenever(this.height).thenReturn(bottom - top)
        whenever(this.width).thenReturn(right - left)
        listener.onLayoutChange(
            this,
            oldLeft,
            oldTop,
            oldRight,
            oldBottom,
            left,
            top,
            right,
            bottom
        )
    }

    private fun createWindowInsets(topCutout: Rect? = Rect()): WindowInsets {
        val windowInsets: WindowInsets = mock()
        val displayCutout: DisplayCutout = mock()
        whenever(windowInsets.displayCutout)
            .thenReturn(if (topCutout != null) displayCutout else null)
        whenever(displayCutout.boundingRectTop).thenReturn(topCutout)

        return windowInsets
    }

    private fun mockInsetsProvider(insets: Pair<Int, Int> = 0 to 0, cornerCutout: Boolean = false) {
        whenever(insetsProvider.getStatusBarContentInsetsForCurrentRotation())
            .thenReturn(
                Insets.of(
                    /* left= */ insets.first,
                    /* top= */ 0,
                    /* right= */ insets.second,
                    /* bottom= */ 0
                )
            )
        whenever(insetsProvider.currentRotationHasCornerCutout()).thenReturn(cornerCutout)
    }

    private fun createMockConstraintChanges(): ConstraintsChanges {
        return ConstraintsChanges(mock(), mock(), mock())
    }

    private fun XmlResourceParser.getResId(): Int {
        return Resources.getAttributeSetSourceResId(this)
    }

    private fun setUpMotionLayout(motionLayout: MotionLayout) {
        whenever(motionLayout.getConstraintSet(QQS_HEADER_CONSTRAINT)).thenReturn(qqsConstraints)
        whenever(motionLayout.getConstraintSet(QS_HEADER_CONSTRAINT)).thenReturn(qsConstraints)
        whenever(motionLayout.getConstraintSet(LARGE_SCREEN_HEADER_CONSTRAINT))
            .thenReturn(largeScreenConstraints)
    }

    private fun setUpDefaultInsets() {
        whenever(
                combinedShadeHeadersConstraintManager.edgesGuidelinesConstraints(
                    anyInt(),
                    anyInt(),
                    anyInt(),
                    anyInt()
                )
            )
            .thenReturn(EMPTY_CHANGES)
        whenever(combinedShadeHeadersConstraintManager.emptyCutoutConstraints())
            .thenReturn(EMPTY_CHANGES)
        whenever(
                combinedShadeHeadersConstraintManager.centerCutoutConstraints(
                    Mockito.anyBoolean(),
                    anyInt()
                )
            )
            .thenReturn(EMPTY_CHANGES)
        whenever(
                combinedShadeHeadersConstraintManager.privacyChipVisibilityConstraints(
                    Mockito.anyBoolean()
                )
            )
            .thenReturn(EMPTY_CHANGES)
        whenever(insetsProvider.getStatusBarContentInsetsForCurrentRotation())
            .thenReturn(Insets.NONE)
        whenever(insetsProvider.currentRotationHasCornerCutout()).thenReturn(false)
        setupCurrentInsets(null)
    }

    private fun setupCurrentInsets(cutout: DisplayCutout?) {
        val mockedDisplay =
            mock<Display>().also { display -> whenever(display.cutout).thenReturn(cutout) }
        whenever(viewContext.display).thenReturn(mockedDisplay)
    }

    private fun <T, U> Pair<T, U>.toAndroidPair(): android.util.Pair<T, U> {
        return android.util.Pair(first, second)
    }
}