/*
 * 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.settings.system

import android.content.Context
import android.content.Intent
import android.os.UserManager
import androidx.compose.ui.test.assertIsDisplayed
import androidx.compose.ui.test.junit4.createComposeRule
import androidx.compose.ui.test.onNodeWithText
import androidx.compose.ui.test.performClick
import androidx.lifecycle.testing.TestLifecycleOwner
import androidx.preference.PreferenceManager
import androidx.test.core.app.ApplicationProvider
import androidx.test.ext.junit.runners.AndroidJUnit4
import com.android.settings.SettingsActivity
import com.android.settings.core.BasePreferenceController.AVAILABLE
import com.android.settings.core.BasePreferenceController.CONDITIONALLY_UNAVAILABLE
import com.android.settings.core.BasePreferenceController.DISABLED_FOR_USER
import com.android.settings.development.DevelopmentSettingsDashboardFragment
import com.android.settings.spa.preference.ComposePreference
import com.android.settingslib.spa.testutils.delay
import com.android.settingslib.spaprivileged.framework.common.userManager
import com.google.common.truth.Truth.assertThat
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.runBlocking
import org.junit.Before
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.kotlin.any
import org.mockito.kotlin.argumentCaptor
import org.mockito.kotlin.doNothing
import org.mockito.kotlin.doReturn
import org.mockito.kotlin.mock
import org.mockito.kotlin.spy
import org.mockito.kotlin.stub
import org.mockito.kotlin.verify
import org.mockito.kotlin.whenever

@RunWith(AndroidJUnit4::class)
class DeveloperOptionsControllerTest {
    @get:Rule
    val composeTestRule = createComposeRule()

    private val mockUserManager = mock<UserManager>()

    private val context: Context = spy(ApplicationProvider.getApplicationContext()) {
        on { userManager } doReturn mockUserManager
        doNothing().whenever(mock).startActivity(any())
    }

    private var isDevelopmentSettingsEnabledFlow = MutableStateFlow(false)

    private val controller =
        DeveloperOptionsController(
            context = context,
            preferenceKey = TEST_KEY,
            isDevelopmentSettingsEnabledFlow = isDevelopmentSettingsEnabledFlow,
        )

    private val preference = ComposePreference(context).apply { key = TEST_KEY }
    private val preferenceScreen = PreferenceManager(context).createPreferenceScreen(context)

    @Before
    fun setUp() {
        preferenceScreen.addPreference(preference)
    }

    @Test
    fun onViewCreated_developmentSettingsEnabledAndAdminUser_returnAvailable() = runBlocking {
        isDevelopmentSettingsEnabledFlow.value = true
        mockUserManager.stub { on { isAdminUser } doReturn true }
        controller.displayPreference(preferenceScreen)

        controller.onViewCreated(TestLifecycleOwner())

        composeTestRule.waitUntil { controller.availabilityStatus == AVAILABLE }
    }

    @Test
    fun onViewCreated_developmentSettingsEnabledAndNotAdminUser_returnAvailable() = runBlocking {
        isDevelopmentSettingsEnabledFlow.value = true
        mockUserManager.stub { on { isAdminUser } doReturn false }
        controller.displayPreference(preferenceScreen)

        controller.onViewCreated(TestLifecycleOwner())

        composeTestRule.waitUntil { controller.availabilityStatus == DISABLED_FOR_USER }
    }

    @Test
    fun onViewCreated_developmentSettingsNotEnabled_returnAvailable() = runBlocking {
        isDevelopmentSettingsEnabledFlow.value = false
        controller.displayPreference(preferenceScreen)

        controller.onViewCreated(TestLifecycleOwner())

        composeTestRule.waitUntil { controller.availabilityStatus == CONDITIONALLY_UNAVAILABLE }
    }

    @Test
    fun getAvailabilityStatus_returnsConditionallyUnavailableInitially() {
        val availabilityStatus = controller.getAvailabilityStatus()

        assertThat(availabilityStatus).isEqualTo(CONDITIONALLY_UNAVAILABLE)
    }

    @Test
    fun title_isDisplayed() {
        composeTestRule.setContent {
            controller.Content()
        }

        composeTestRule.onNodeWithText(
            context.getString(com.android.settingslib.R.string.development_settings_title)
        ).assertIsDisplayed()
    }

    @Test
    fun onClick_launchDevelopmentSettingsDashboardFragment() {
        composeTestRule.setContent {
            controller.Content()
        }

        composeTestRule.onNodeWithText(
            context.getString(com.android.settingslib.R.string.development_settings_title)
        ).performClick()
        composeTestRule.delay()

        val intent = argumentCaptor<Intent> {
            verify(context).startActivity(capture())
        }.firstValue
        assertThat(intent.getStringExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT))
            .isEqualTo(DevelopmentSettingsDashboardFragment::class.qualifiedName)
    }

    private companion object {
        const val TEST_KEY = "test_key"
    }
}