/*
 * Copyright (C) 2017 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.settingslib.development;

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

import static org.mockito.Answers.RETURNS_DEEP_STUBS;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;

import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.provider.Settings;

import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;

import com.android.settingslib.RestrictedSwitchPreference;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.RuntimeEnvironment;
import org.robolectric.shadows.ShadowApplication;

@RunWith(RobolectricTestRunner.class)
public class EnableAdbPreferenceControllerTest {

    private static final ComponentName TEST_COMPONENT_NAME = new ComponentName("test", "test");

    @Mock(answer = RETURNS_DEEP_STUBS)
    private PreferenceScreen mScreen;
    @Mock
    private UserManager mUserManager;
    @Mock
    private PackageManager mPackageManager;
    @Mock
    private DevicePolicyManager mDevicePolicyManager;

    private Context mContext;
    private RestrictedSwitchPreference mPreference;
    private ConcreteEnableAdbPreferenceController mController;

    @Before
    public void setUp() throws Exception {
        MockitoAnnotations.initMocks(this);
        ShadowApplication shadowContext = ShadowApplication.getInstance();
        shadowContext.setSystemService(Context.USER_SERVICE, mUserManager);
        mContext = spy(RuntimeEnvironment.application);
        when(mContext.getPackageManager()).thenReturn(mPackageManager);
        when(mContext.getSystemService(DevicePolicyManager.class)).thenReturn(mDevicePolicyManager);
        doReturn(mContext).when(mContext).createPackageContextAsUser(
                any(String.class), anyInt(), any(UserHandle.class));
        mController = new ConcreteEnableAdbPreferenceController(mContext);
        mPreference = new RestrictedSwitchPreference(mContext);
        mPreference.setKey(mController.getPreferenceKey());
        when(mScreen.findPreference(mPreference.getKey())).thenReturn(mPreference);
    }

    @Test
    public void displayPreference_isNotAdmin_shouldRemovePreference() {
        when(mUserManager.isAdminUser()).thenReturn(false);

        mController.displayPreference(mScreen);

        assertThat(mPreference.isVisible()).isFalse();
    }

    @Test
    public void displayPreference_isAdmin_shouldNotRemovePreference() {
        when(mUserManager.isAdminUser()).thenReturn(true);

        mController.displayPreference(mScreen);

        assertThat(mPreference.isVisible()).isTrue();
    }

    @Test
    public void resetPreference_shouldUncheck() {
        when(mUserManager.isAdminUser()).thenReturn(true);
        mController.displayPreference(mScreen);
        mPreference.setChecked(true);

        mController.resetPreference();

        assertThat(mPreference.isChecked()).isFalse();
    }

    @Test
    public void handlePreferenceTreeClick_shouldUpdateSettings() {
        when(mUserManager.isAdminUser()).thenReturn(true);
        Settings.Global.putInt(mContext.getContentResolver(),
                Settings.Global.ADB_ENABLED, 1);
        mPreference.setChecked(true);
        mController.displayPreference(mScreen);

        mController.handlePreferenceTreeClick(mPreference);

        assertThat(Settings.Global.getInt(mContext.getContentResolver(),
                Settings.Global.ADB_ENABLED, 0)).isEqualTo(0);
    }

    @Test
    public void handlePreferenceTreeClick_isMonkeyUser_shouldBeFalse() {
        mController = spy(mController);
        doReturn(true).when(mController).isUserAMonkey();
        when(mUserManager.isAdminUser()).thenReturn(true);
        mController.displayPreference(mScreen);

        final boolean handled = mController.handlePreferenceTreeClick(mPreference);

        assertThat(handled).isFalse();
    }

    @Test
    public void updateState_settingsOn_shouldCheck() {
        when(mUserManager.isAdminUser()).thenReturn(true);
        when(mDevicePolicyManager.getProfileOwner()).thenReturn(TEST_COMPONENT_NAME);
        when(mDevicePolicyManager.isUsbDataSignalingEnabledForUser(
                UserHandle.myUserId())).thenReturn(true);
        Settings.Global.putInt(mContext.getContentResolver(),
                Settings.Global.ADB_ENABLED, 1);
        mPreference.setChecked(false);
        mController.displayPreference(mScreen);

        mController.updateState(mPreference);

        assertThat(mPreference.isChecked()).isTrue();
    }

    @Test
    public void updateState_settingsOff_shouldUncheck() {
        when(mUserManager.isAdminUser()).thenReturn(true);
        when(mDevicePolicyManager.getProfileOwner()).thenReturn(TEST_COMPONENT_NAME);
        when(mDevicePolicyManager.isUsbDataSignalingEnabledForUser(
                UserHandle.myUserId())).thenReturn(true);
        Settings.Global.putInt(mContext.getContentResolver(),
                Settings.Global.ADB_ENABLED, 0);
        mPreference.setChecked(true);
        mController.displayPreference(mScreen);

        mController.updateState(mPreference);

        assertThat(mPreference.isChecked()).isFalse();
    }

    class ConcreteEnableAdbPreferenceController extends AbstractEnableAdbPreferenceController {
        private ConcreteEnableAdbPreferenceController(Context context) {
            super(context);
        }

        @Override
        public void showConfirmationDialog(Preference preference) {
            // Don't show a dialog, just set setting.
            writeAdbSetting(true);
        }

        @Override
        public boolean isConfirmationDialogShowing() {
            return false;
        }

        @Override
        public void dismissConfirmationDialog() {
        }
    }
}