/*
 * 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.qs.tiles

import android.app.UiModeManager
import android.content.Context
import android.content.res.Configuration
import android.content.res.Resources
import android.os.Handler
import android.testing.TestableLooper
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.filters.SmallTest
import com.android.internal.logging.MetricsLogger
import com.android.systemui.res.R
import com.android.systemui.SysuiTestCase
import com.android.systemui.classifier.FalsingManagerFake
import com.android.systemui.plugins.ActivityStarter
import com.android.systemui.plugins.qs.QSTile
import com.android.systemui.plugins.statusbar.StatusBarStateController
import com.android.systemui.qs.QSHost
import com.android.systemui.qs.QsEventLogger
import com.android.systemui.qs.logging.QSLogger
import com.android.systemui.qs.tileimpl.QSTileImpl
import com.android.systemui.statusbar.policy.BatteryController
import com.android.systemui.statusbar.policy.ConfigurationController
import com.android.systemui.statusbar.policy.LocationController
import com.google.common.truth.Truth.assertThat
import org.junit.After
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.Mock
import org.mockito.Mockito.`when`
import org.mockito.MockitoAnnotations

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

    @Mock private lateinit var mockContext: Context
    @Mock private lateinit var uiModeManager: UiModeManager
    @Mock private lateinit var resources: Resources
    @Mock private lateinit var qsLogger: QSLogger
    @Mock private lateinit var qsHost: QSHost
    @Mock private lateinit var metricsLogger: MetricsLogger
    @Mock private lateinit var statusBarStateController: StatusBarStateController
    @Mock private lateinit var activityStarter: ActivityStarter
    @Mock private lateinit var configurationController: ConfigurationController
    @Mock private lateinit var batteryController: BatteryController
    @Mock private lateinit var locationController: LocationController
    @Mock private lateinit var uiEventLogger: QsEventLogger

    private val falsingManager = FalsingManagerFake()
    private lateinit var testableLooper: TestableLooper
    private lateinit var tile: UiModeNightTile
    private lateinit var configuration: Configuration

    @Before
    fun setUp() {
        MockitoAnnotations.initMocks(this)
        testableLooper = TestableLooper.get(this)
        configuration = Configuration()
        mContext.addMockSystemService(UiModeManager::class.java, uiModeManager)

        `when`(qsHost.context).thenReturn(mockContext)
        `when`(qsHost.userContext).thenReturn(mContext)
        `when`(mockContext.resources).thenReturn(resources)
        `when`(resources.configuration).thenReturn(configuration)

        tile =
            UiModeNightTile(
                qsHost,
                uiEventLogger,
                testableLooper.looper,
                Handler(testableLooper.looper),
                falsingManager,
                metricsLogger,
                statusBarStateController,
                activityStarter,
                qsLogger,
                configurationController,
                batteryController,
                locationController
            )
    }

    @After
    fun tearDown() {
        tile.destroy()
        testableLooper.processAllMessages()
    }

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

        tile.handleUpdateState(state, /* arg= */ null)

        assertThat(state.icon)
            .isEqualTo(QSTileImpl.ResourceIcon.get(R.drawable.qs_light_dark_theme_icon_on))
    }

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

        tile.handleUpdateState(state, /* arg= */ null)

        assertThat(state.icon)
            .isEqualTo(QSTileImpl.ResourceIcon.get(R.drawable.qs_light_dark_theme_icon_off))
    }

    private fun setNightModeOn() {
        `when`(uiModeManager.nightMode).thenReturn(UiModeManager.MODE_NIGHT_YES)
        configuration.uiMode = Configuration.UI_MODE_NIGHT_YES
    }

    private fun setNightModeOff() {
        `when`(uiModeManager.nightMode).thenReturn(UiModeManager.MODE_NIGHT_NO)
        configuration.uiMode = Configuration.UI_MODE_NIGHT_NO
    }
}