/*
 * 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.car.settings.applications;

import static com.google.common.truth.Truth.assertThat;

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.verify;

import android.car.drivingstate.CarUxRestrictions;
import android.content.Context;
import android.content.pm.ApplicationInfo;

import androidx.lifecycle.LifecycleOwner;
import androidx.preference.Preference;
import androidx.preference.PreferenceManager;
import androidx.preference.PreferenceScreen;
import androidx.test.annotation.UiThreadTest;
import androidx.test.core.app.ApplicationProvider;
import androidx.test.ext.junit.runners.AndroidJUnit4;

import com.android.car.settings.R;
import com.android.car.settings.common.FragmentController;
import com.android.car.settings.common.LogicalPreferenceGroup;
import com.android.car.settings.common.PreferenceControllerTestUtil;
import com.android.car.settings.testutils.TestLifecycleOwner;
import com.android.settingslib.applications.ApplicationsState;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import java.util.ArrayList;

@RunWith(AndroidJUnit4.class)
public class ApplicationsSettingsPreferenceControllerTest {

    private static final String SOURCE = "source";
    private static final int UID = 12;
    private static final String LABEL = "label";
    private static final String SIZE_STR = "12.34 MB";

    private Context mContext = ApplicationProvider.getApplicationContext();
    private LifecycleOwner mLifecycleOwner;
    private LogicalPreferenceGroup mPreferenceGroup;
    private ApplicationsSettingsPreferenceController mPreferenceController;
    private CarUxRestrictions mCarUxRestrictions;

    @Mock
    private FragmentController mFragmentController;

    @Before
    @UiThreadTest
    public void setUp() {
        MockitoAnnotations.initMocks(this);
        mLifecycleOwner = new TestLifecycleOwner();

        mCarUxRestrictions = new CarUxRestrictions.Builder(/* reqOpt= */ true,
                CarUxRestrictions.UX_RESTRICTIONS_BASELINE, /* timestamp= */ 0).build();

        PreferenceManager preferenceManager = new PreferenceManager(mContext);
        PreferenceScreen screen = preferenceManager.createPreferenceScreen(mContext);
        mPreferenceGroup = new LogicalPreferenceGroup(mContext);
        screen.addPreference(mPreferenceGroup);
        mPreferenceController = new ApplicationsSettingsPreferenceController(mContext,
                "key", mFragmentController, mCarUxRestrictions);
        PreferenceControllerTestUtil.assignPreference(mPreferenceController, mPreferenceGroup);
        mPreferenceController.onCreate(mLifecycleOwner);
    }

    @Test
    public void defaultInitialize_hasNoPreference() {
        assertThat(mPreferenceGroup.getPreferenceCount()).isEqualTo(0);
    }

    @Test
    public void onDataLoaded_addPreference_hasOnePreference() {
        ArrayList<ApplicationsState.AppEntry> apps = new ArrayList<>();
        ApplicationInfo appInfo = new ApplicationInfo();
        appInfo.uid = UID;
        appInfo.sourceDir = SOURCE;

        ApplicationsState.AppEntry appEntry = new ApplicationsState.AppEntry(mContext, appInfo,
                1234L);
        appEntry.label = LABEL;
        appEntry.sizeStr = SIZE_STR;
        appEntry.icon = mContext.getDrawable(R.drawable.test_icon);
        apps.add(appEntry);

        mPreferenceController.onDataLoaded(apps);

        assertThat(mPreferenceGroup.getPreferenceCount()).isEqualTo(1);
        assertThat(mPreferenceGroup.getPreference(0).getTitle()).isEqualTo(LABEL);
        assertThat(mPreferenceGroup.getPreference(0).getSummary()).isEqualTo(SIZE_STR);
    }

    @Test
    @UiThreadTest
    public void preferenceClick_launchesDetailFragment() {
        ArrayList<ApplicationsState.AppEntry> apps = new ArrayList<>();
        ApplicationInfo appInfo = new ApplicationInfo();
        appInfo.uid = UID;
        appInfo.sourceDir = SOURCE;

        ApplicationsState.AppEntry appEntry = new ApplicationsState.AppEntry(mContext, appInfo,
                1234L);
        appEntry.label = LABEL;
        appEntry.sizeStr = SIZE_STR;
        appEntry.icon = mContext.getDrawable(R.drawable.test_icon);
        apps.add(appEntry);

        mPreferenceController.onDataLoaded(apps);

        Preference preference = mPreferenceGroup.getPreference(0);
        preference.performClick();

        verify(mFragmentController).launchFragment(any(ApplicationDetailsFragment.class));
    }
}