/*
 * Copyright (C) 2016 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.documentsui;

import static com.android.documentsui.StubProvider.ROOT_0_ID;
import static com.android.documentsui.StubProvider.ROOT_1_ID;
import static com.android.documentsui.flags.Flags.FLAG_HIDE_ROOTS_ON_DESKTOP_RO;

import android.content.pm.PackageManager;
import android.platform.test.annotations.RequiresFlagsDisabled;
import android.platform.test.annotations.RequiresFlagsEnabled;
import android.platform.test.flag.junit.CheckFlagsRule;
import android.platform.test.flag.junit.DeviceFlagsValueProvider;

import androidx.test.ext.junit.runners.AndroidJUnit4;
import androidx.test.filters.LargeTest;

import com.android.documentsui.base.RootInfo;
import com.android.documentsui.files.FilesActivity;
import com.android.documentsui.filters.HugeLongTest;

import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

@LargeTest
@RunWith(AndroidJUnit4.class)
public class FilesActivityDefaultsUiTest extends ActivityTestJunit4<FilesActivity> {

    @Rule
    public final CheckFlagsRule mCheckFlagsRule = DeviceFlagsValueProvider.createCheckFlagsRule();

    @Before
    public void setUp() throws Exception {
        super.setUp();
    }

    @After
    public void tearDown() throws Exception {
        super.tearDown();
    }

    @Override
    protected void initTestFiles() {
        // Overriding to init with no items in test roots
    }

    @Override
    protected RootInfo getInitialRoot() {
        return null;  // test the default, unaffected state of the app.
    }

    @Test
    @HugeLongTest
    public void testNavigate_FromEmptyDirectory() throws Exception {
        device.waitForIdle();

        bots.roots.openRoot(rootDir0.title);

        String msg = String.valueOf(context.getString(R.string.empty));
        bots.directory.assertPlaceholderMessageText(msg);

        // Check to make sure back button is properly handled by non-Doc type DocHolders
        device.pressBack();
    }

    @Test
    @HugeLongTest
    @RequiresFlagsDisabled(FLAG_HIDE_ROOTS_ON_DESKTOP_RO)
    public void testDefaultRoots_hideRootsOnDesktopFlagDisabled() throws Exception {
        device.waitForIdle();

        // Should also have Drive, but that requires pre-configuration of devices
        // We omit for now.
        bots.roots.assertRootsPresent(
                "Images",
                "Videos",
                "Audio",
                "Downloads",
                ROOT_0_ID,
                ROOT_1_ID);
    }

    @Test
    @HugeLongTest
    @RequiresFlagsEnabled(FLAG_HIDE_ROOTS_ON_DESKTOP_RO)
    public void testDefaultRoots_hideRootsOnDesktopFlagEnabled() throws Exception {
        device.waitForIdle();

        String[] expectedRoots;
        if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_PC)) {
            expectedRoots = new String[]{"Downloads",
                    ROOT_0_ID,
                    ROOT_1_ID};
        } else {
            expectedRoots = new String[]{
                    "Images",
                    "Videos",
                    "Audio",
                    "Downloads",
                    ROOT_0_ID,
                    ROOT_1_ID};
        }
        // Should also have Drive, but that requires pre-configuration of devices
        // We omit for now.
        bots.roots.assertRootsPresent(expectedRoots);
    }
}