/*
 * Copyright (C) 2021 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.qs.tileimpl

import android.content.Context
import android.graphics.Rect
import android.graphics.drawable.Drawable
import android.service.quicksettings.Tile
import android.testing.TestableLooper
import android.text.TextUtils
import android.view.ContextThemeWrapper
import android.view.View
import android.view.accessibility.AccessibilityNodeInfo
import android.widget.TextView
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.SmallTest
import com.android.systemui.SysuiTestCase
import com.android.systemui.haptics.qs.QSLongPressEffect
import com.android.systemui.haptics.qs.qsLongPressEffect
import com.android.systemui.plugins.qs.QSTile
import com.android.systemui.qs.qsTileFactory
import com.android.systemui.res.R
import com.android.systemui.testKosmos
import com.google.common.truth.Truth.assertThat
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.Mock
import org.mockito.MockitoAnnotations

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

    @Mock private lateinit var customDrawable: Drawable

    private lateinit var tileView: FakeTileView
    private lateinit var customDrawableView: View
    private lateinit var chevronView: View
    private val kosmos = testKosmos()

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

        tileView = FakeTileView(context, false, kosmos.qsLongPressEffect)
        customDrawableView = tileView.requireViewById(R.id.customDrawable)
        chevronView = tileView.requireViewById(R.id.chevron)
    }

    @Test
    fun testSecondaryLabelNotModified_unavailable() {
        val state = QSTile.State()
        val testString = "TEST STRING"
        state.state = Tile.STATE_UNAVAILABLE
        state.secondaryLabel = testString

        tileView.changeState(state)

        assertThat(state.secondaryLabel as CharSequence).isEqualTo(testString)
    }

    @Test
    fun testSecondaryLabelNotModified_booleanInactive() {
        val state = QSTile.BooleanState()
        val testString = "TEST STRING"
        state.state = Tile.STATE_INACTIVE
        state.secondaryLabel = testString

        tileView.changeState(state)

        assertThat(state.secondaryLabel as CharSequence).isEqualTo(testString)
    }

    @Test
    fun testSecondaryLabelNotModified_booleanActive() {
        val state = QSTile.BooleanState()
        val testString = "TEST STRING"
        state.state = Tile.STATE_ACTIVE
        state.secondaryLabel = testString

        tileView.changeState(state)

        assertThat(state.secondaryLabel as CharSequence).isEqualTo(testString)
    }

    @Test
    fun testSecondaryLabelNotModified_availableNotBoolean_inactive() {
        val state = QSTile.State()
        state.state = Tile.STATE_INACTIVE
        state.secondaryLabel = ""

        tileView.changeState(state)

        assertThat(TextUtils.isEmpty(state.secondaryLabel)).isTrue()
    }

    @Test
    fun testSecondaryLabelNotModified_availableNotBoolean_active() {
        val state = QSTile.State()
        state.state = Tile.STATE_ACTIVE
        state.secondaryLabel = ""

        tileView.changeState(state)

        assertThat(TextUtils.isEmpty(state.secondaryLabel)).isTrue()
    }

    @Test
    fun testSecondaryLabelDescription_unavailable_default() {
        val state = QSTile.State()
        state.state = Tile.STATE_UNAVAILABLE
        state.secondaryLabel = ""

        tileView.changeState(state)

        assertThat(state.secondaryLabel as CharSequence)
            .isEqualTo(context.getString(R.string.tile_unavailable))
    }

    @Test
    fun testSecondaryLabelDescription_booleanInactive_default() {
        val state = QSTile.BooleanState()
        state.state = Tile.STATE_INACTIVE
        state.secondaryLabel = ""

        tileView.changeState(state)

        assertThat(state.secondaryLabel as CharSequence)
            .isEqualTo(context.getString(R.string.switch_bar_off))
    }

    @Test
    fun testSecondaryLabelDescription_booleanActive_default() {
        val state = QSTile.BooleanState()
        state.state = Tile.STATE_ACTIVE
        state.secondaryLabel = ""

        tileView.changeState(state)

        assertThat(state.secondaryLabel as CharSequence)
            .isEqualTo(context.getString(R.string.switch_bar_on))
    }

    @Test
    fun testShowCustomDrawableViewBooleanState() {
        val state = QSTile.BooleanState()
        state.sideViewCustomDrawable = customDrawable

        tileView.changeState(state)

        assertThat(customDrawableView.visibility).isEqualTo(View.VISIBLE)
        assertThat(chevronView.visibility).isEqualTo(View.GONE)
    }

    @Test
    fun testShowCustomDrawableViewNonBooleanState() {
        val state = QSTile.State()
        state.sideViewCustomDrawable = customDrawable

        tileView.changeState(state)

        assertThat(customDrawableView.visibility).isEqualTo(View.VISIBLE)
        assertThat(chevronView.visibility).isEqualTo(View.GONE)
    }

    @Test
    fun testShowCustomDrawableViewBooleanStateForceChevron() {
        val state = QSTile.BooleanState()
        state.sideViewCustomDrawable = customDrawable
        state.forceExpandIcon = true

        tileView.changeState(state)

        assertThat(customDrawableView.visibility).isEqualTo(View.VISIBLE)
        assertThat(chevronView.visibility).isEqualTo(View.GONE)
    }

    @Test
    fun testShowChevronNonBooleanState() {
        val state = QSTile.State()

        tileView.changeState(state)

        assertThat(customDrawableView.visibility).isEqualTo(View.GONE)
        assertThat(chevronView.visibility).isEqualTo(View.VISIBLE)
    }

    @Test
    fun testShowChevronBooleanStateForcheShow() {
        val state = QSTile.BooleanState()
        state.forceExpandIcon = true

        tileView.changeState(state)

        assertThat(customDrawableView.visibility).isEqualTo(View.GONE)
        assertThat(chevronView.visibility).isEqualTo(View.VISIBLE)
    }

    @Test
    fun testNoImageShown() {
        val state = QSTile.BooleanState()

        tileView.changeState(state)

        assertThat(customDrawableView.visibility).isEqualTo(View.GONE)
        assertThat(chevronView.visibility).isEqualTo(View.GONE)
    }

    @Test
    fun testUseStateStringsForKnownSpec_Boolean() {
        val state = QSTile.BooleanState()
        val spec = "internet"
        state.spec = spec

        val unavailableString = "${spec}_unavailable"
        val offString = "${spec}_off"
        val onString = "${spec}_on"

        context.orCreateTestableResources.addOverride(
            R.array.tile_states_internet,
            arrayOf(unavailableString, offString, onString)
        )

        // State UNAVAILABLE
        state.secondaryLabel = ""
        state.state = Tile.STATE_UNAVAILABLE
        tileView.changeState(state)
        assertThat((tileView.secondaryLabel as TextView).text).isEqualTo(unavailableString)

        // State INACTIVE
        state.secondaryLabel = ""
        state.state = Tile.STATE_INACTIVE
        tileView.changeState(state)
        assertThat((tileView.secondaryLabel as TextView).text).isEqualTo(offString)

        // State ACTIVE
        state.secondaryLabel = ""
        state.state = Tile.STATE_ACTIVE
        tileView.changeState(state)
        assertThat((tileView.secondaryLabel as TextView).text).isEqualTo(onString)
    }

    @Test
    fun testCollectionItemInfoHasPosition() {
        val position = 5
        tileView.setPosition(position)

        val info = AccessibilityNodeInfo(tileView)
        tileView.onInitializeAccessibilityNodeInfo(info)

        assertThat(info.collectionItemInfo.rowIndex).isEqualTo(position)
        assertThat(info.collectionItemInfo.rowSpan).isEqualTo(1)
        assertThat(info.collectionItemInfo.columnIndex).isEqualTo(0)
        assertThat(info.collectionItemInfo.columnSpan).isEqualTo(1)
    }

    @Test
    fun testCollectionItemInfoNoPosition() {
        val info = AccessibilityNodeInfo(tileView)
        tileView.onInitializeAccessibilityNodeInfo(info)

        assertThat(info.collectionItemInfo).isNull()
    }

    @Test
    fun testDisabledByPolicyInactive_usesUnavailableColors() {
        val stateDisabledByPolicy = QSTile.State()
        stateDisabledByPolicy.state = Tile.STATE_INACTIVE
        stateDisabledByPolicy.disabledByPolicy = true

        val stateUnavailable = QSTile.State()
        stateUnavailable.state = Tile.STATE_UNAVAILABLE

        tileView.changeState(stateDisabledByPolicy)
        val colorsDisabledByPolicy = tileView.getCurrentColors()

        tileView.changeState(stateUnavailable)
        val colorsUnavailable = tileView.getCurrentColors()

        assertThat(colorsDisabledByPolicy).containsExactlyElementsIn(colorsUnavailable)
    }

    @Test
    fun testDisabledByPolicyActive_usesUnavailableColors() {
        val stateDisabledByPolicy = QSTile.State()
        stateDisabledByPolicy.state = Tile.STATE_ACTIVE
        stateDisabledByPolicy.disabledByPolicy = true

        val stateUnavailable = QSTile.State()
        stateUnavailable.state = Tile.STATE_UNAVAILABLE

        tileView.changeState(stateDisabledByPolicy)
        val colorsDisabledByPolicy = tileView.getCurrentColors()

        tileView.changeState(stateUnavailable)
        val colorsUnavailable = tileView.getCurrentColors()

        assertThat(colorsDisabledByPolicy).containsExactlyElementsIn(colorsUnavailable)
    }

    @Test
    fun testDisableByPolicyThenRemoved_changesColor() {
        val stateActive = QSTile.State()
        stateActive.state = Tile.STATE_ACTIVE

        val stateDisabledByPolicy = stateActive.copy()
        stateDisabledByPolicy.disabledByPolicy = true

        tileView.changeState(stateActive)
        val activeColors = tileView.getCurrentColors()

        tileView.changeState(stateDisabledByPolicy)
        // It has unavailable colors
        assertThat(tileView.getCurrentColors()).isNotEqualTo(activeColors)

        // When we get back to not disabled by policy tile, it should go back to active colors
        tileView.changeState(stateActive)
        assertThat(tileView.getCurrentColors()).containsExactlyElementsIn(activeColors)
    }

    @Test
    fun testDisabledByPolicy_secondaryLabelText() {
        val testA11yLabel = "TEST_LABEL"
        context.orCreateTestableResources.addOverride(
            R.string.accessibility_tile_disabled_by_policy_action_description,
            testA11yLabel
        )

        val stateDisabledByPolicy = QSTile.State()
        stateDisabledByPolicy.state = Tile.STATE_INACTIVE
        stateDisabledByPolicy.disabledByPolicy = true

        tileView.changeState(stateDisabledByPolicy)

        val info = AccessibilityNodeInfo(tileView)
        tileView.onInitializeAccessibilityNodeInfo(info)
        assertThat(
                info.actionList
                    .find { it.id == AccessibilityNodeInfo.AccessibilityAction.ACTION_CLICK.id }
                    ?.label
            )
            .isEqualTo(testA11yLabel)
    }

    @Test
    fun testDisabledByPolicy_unavailableInStateDescription() {
        val state = QSTile.BooleanState()
        val spec = "internet"
        state.spec = spec
        state.disabledByPolicy = true
        state.state = Tile.STATE_INACTIVE

        val unavailableString = "${spec}_unavailable"
        val offString = "${spec}_off"
        val onString = "${spec}_on"

        context.orCreateTestableResources.addOverride(
            R.array.tile_states_internet,
            arrayOf(unavailableString, offString, onString)
        )

        tileView.changeState(state)
        assertThat(tileView.stateDescription?.contains(unavailableString)).isTrue()
    }

    @Test
    fun onStateChange_longPressEffectActive_withInvalidDuration_doesNotInitializeEffect() {
        val state = QSTile.State() // A state that handles longPress

        // GIVEN an invalid long-press effect duration
        tileView.constantLongPressEffectDuration = -1

        // WHEN the state changes
        tileView.changeState(state)

        // THEN the long-press effect is not initialized
        assertThat(tileView.isLongPressEffectInitialized).isFalse()
    }

    @Test
    fun onStateChange_longPressEffectActive_withValidDuration_initializesEffect() {
        // GIVEN a test state that handles long-press and a valid long-press effect duration
        val state = QSTile.State()

        // WHEN the state changes
        tileView.changeState(state)

        // THEN the long-press effect is initialized
        assertThat(tileView.isLongPressEffectInitialized).isTrue()
    }

    @Test
    fun onStateChange_fromLongPress_to_noLongPress_clearsResources() {
        // GIVEN a state that no longer handles long-press
        val state = QSTile.State()
        state.handlesLongClick = false

        // WHEN the state changes
        tileView.changeState(state)

        // THEN the long-press effect resources are not set
        assertThat(tileView.areLongPressEffectPropertiesSet).isFalse()
    }

    @Test
    fun onStateChange_fromNoLongPress_to_longPress_setsProperties() {
        // GIVEN that the tile has changed to a state that does not handle long-press
        val state = QSTile.State()
        state.handlesLongClick = false
        tileView.changeState(state)

        // WHEN the state changes back to handling long-press
        state.handlesLongClick = true
        tileView.changeState(state)

        // THEN the long-press effect resources are set
        assertThat(tileView.areLongPressEffectPropertiesSet).isTrue()
    }

    @Test
    fun onStateChange_withoutLongPressEffect_fromLongPress_to_noLongPress_neverSetsProperties() {
        // GIVEN a tile where the long-press effect is null
        tileView = FakeTileView(context, false, null)

        // GIVEN a state that no longer handles long-press
        val state = QSTile.State()
        state.handlesLongClick = false

        // WHEN the state changes
        tileView.changeState(state)

        // THEN the effect properties are not set and the effect is not initialized
        assertThat(tileView.areLongPressEffectPropertiesSet).isFalse()
        assertThat(tileView.isLongPressEffectInitialized).isFalse()
    }

    @Test
    fun onStateChange_withoutLongPressEffect_fromNoLongPress_to_longPress_neverSetsProperties() {
        // GIVEN a tile where the long-press effect is null
        tileView = FakeTileView(context, false, null)

        // GIVEN that the tile has changed to a state that does not handle long-press
        val state = QSTile.State()
        state.handlesLongClick = false
        tileView.changeState(state)

        // WHEN the state changes back to handling long-press
        state.handlesLongClick = true
        tileView.changeState(state)

        // THEN the effect properties are not set and the effect is not initialized
        assertThat(tileView.areLongPressEffectPropertiesSet).isFalse()
        assertThat(tileView.isLongPressEffectInitialized).isFalse()
    }

    @Test
    fun onPrepareForLaunch_paddingForLaunchAnimationIsConfigured() {
        val startingWidth = 100
        val startingHeight = 50
        val deltaWidth = (QSTileViewImpl.LONG_PRESS_EFFECT_WIDTH_SCALE - 1f) * startingWidth
        val deltaHeight = (QSTileViewImpl.LONG_PRESS_EFFECT_HEIGHT_SCALE - 1f) * startingHeight

        // GIVEN that long-press effect properties are initialized
        tileView.initializeLongPressProperties(startingHeight, startingWidth)

        // WHEN the tile is preparing for the launch animation
        tileView.prepareForLaunch()

        // THE animation padding corresponds to the tile's growth due to the effect
        val padding = tileView.getPaddingForLaunchAnimation()
        assertThat(padding)
            .isEqualTo(
                Rect(
                    -deltaWidth.toInt() / 2,
                    -deltaHeight.toInt() / 2,
                    deltaWidth.toInt() / 2,
                    deltaHeight.toInt() / 2,
                )
            )
    }

    @Test
    fun onActivityLaunchAnimationEnd_onFreshTile_longPressPropertiesAreReset() {
        // WHEN an activity launch animation ends on a fresh tile
        tileView.onActivityLaunchAnimationEnd()

        // THEN the tile's long-press effect properties are reset by default
        assertThat(tileView.haveLongPressPropertiesBeenReset).isTrue()
    }

    @Test
    fun onUpdateLongPressEffectProperties_duringLongPressEffect_propertiesAreNotReset() {
        // GIVEN a state that supports long-press
        val state = QSTile.State()
        tileView.changeState(state)

        // WHEN the long-press effect is updating the properties
        tileView.updateLongPressEffectProperties(1f)

        // THEN the tile's long-press effect properties haven't reset
        assertThat(tileView.haveLongPressPropertiesBeenReset).isFalse()
    }

    @Test
    fun onActivityLaunchAnimationEnd_afterLongPressEffect_longPressPropertiesAreReset() {
        // GIVEN a state that supports long-press and the long-press effect updating
        val state = QSTile.State()
        tileView.changeState(state)
        tileView.updateLongPressEffectProperties(1f)

        // WHEN an activity launch animation ends on a fresh tile
        tileView.onActivityLaunchAnimationEnd()

        // THEN the tile's long-press effect properties are reset
        assertThat(tileView.haveLongPressPropertiesBeenReset).isTrue()
    }

    @Test
    fun onInit_withLongPressEffect_longPressEffectHasTileAndExpandable() {
        val tile = kosmos.qsTileFactory.createTile("Test Tile")
        tileView.init(tile)

        assertThat(tileView.isTileAddedToLongPress).isTrue()
        assertThat(tileView.isExpandableAddedToLongPress).isTrue()
    }

    @Test
    fun onInit_withoutLongPressEffect_longPressEffectDoesNotHaveTileAndExpandable() {
        tileView = FakeTileView(context, false, null)
        val tile = kosmos.qsTileFactory.createTile("Test Tile")
        tileView.init(tile)

        assertThat(tileView.isTileAddedToLongPress).isFalse()
        assertThat(tileView.isExpandableAddedToLongPress).isFalse()
    }

    class FakeTileView(
        context: Context,
        collapsed: Boolean,
        private val longPressEffect: QSLongPressEffect?,
    ) :
        QSTileViewImpl(
            ContextThemeWrapper(context, R.style.Theme_SystemUI_QuickSettings),
            collapsed,
            longPressEffect,
        ) {
        var constantLongPressEffectDuration = 500
        val isTileAddedToLongPress: Boolean
            get() = longPressEffect?.qsTile != null

        val isExpandableAddedToLongPress: Boolean
            get() = longPressEffect?.expandable != null

        override fun getLongPressEffectDuration(): Int = constantLongPressEffectDuration

        fun changeState(state: QSTile.State) {
            handleStateChanged(state)
        }
    }
}