/*
 * 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.datausage

import android.content.Context
import android.net.NetworkTemplate
import android.view.LayoutInflater
import android.view.View
import android.widget.Spinner
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.testing.TestLifecycleOwner
import androidx.test.core.app.ApplicationProvider
import androidx.test.ext.junit.runners.AndroidJUnit4
import com.android.settings.R
import com.google.common.truth.Truth.assertThat
import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.flowOf
import kotlinx.coroutines.runBlocking
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.kotlin.any
import org.mockito.kotlin.doNothing
import org.mockito.kotlin.mock
import org.mockito.kotlin.spy
import org.mockito.kotlin.whenever

@RunWith(AndroidJUnit4::class)
class DataUsageListHeaderControllerTest {

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

    private val header =
        LayoutInflater.from(context).inflate(R.layout.apps_filter_spinner, null, false)

    private val configureButton: View = header.requireViewById(R.id.filter_settings)

    private val spinner: Spinner = header.requireViewById(R.id.filter_spinner)

    private val testLifecycleOwner = TestLifecycleOwner(initialState = Lifecycle.State.CREATED)

    private val controller = DataUsageListHeaderController(
        header = header,
        template = mock<NetworkTemplate>(),
        sourceMetricsCategory = 0,
        viewLifecycleOwner = testLifecycleOwner,
        cyclesFlow = flowOf(emptyList()),
        updateSelectedCycle = {},
    )

    @Test
    fun onViewCreated_shouldHideCycleSpinner() {
        assertThat(spinner.visibility).isEqualTo(View.GONE)
    }

    @Test
    fun updateCycleData_shouldShowCycleSpinner() = runBlocking {
        testLifecycleOwner.handleLifecycleEvent(Lifecycle.Event.ON_START)
        delay(100)

        assertThat(spinner.visibility).isEqualTo(View.VISIBLE)
    }

    @Test
    fun setConfigButtonVisible_setToTrue_shouldShowConfigureButton() {
        controller.setConfigButtonVisible(true)

        assertThat(configureButton.visibility).isEqualTo(View.VISIBLE)
    }

    @Test
    fun setConfigButtonVisible_setToFalse_shouldHideConfigureButton() {
        controller.setConfigButtonVisible(false)

        assertThat(configureButton.visibility).isEqualTo(View.GONE)
    }
}