/*
 * Copyright (C) 2019 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.server.wm;

import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION;
import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
import static android.view.WindowManager.LayoutParams.TYPE_NOTIFICATION_SHADE;
import static android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR;
import static android.view.WindowManager.LayoutParams.TYPE_TOAST;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import android.app.WindowConfiguration;
import android.content.ComponentName;
import android.content.pm.ActivityInfo;
import android.platform.test.annotations.Presubmit;

import androidx.test.filters.SmallTest;

import org.junit.Test;
import org.junit.runner.RunWith;

/**
 * Tests for RootWindowContainer.
 *
 * Build/Install/Run:
 *  atest WmTests:RootWindowContainerTests
 */
@SmallTest
@Presubmit
@RunWith(WindowTestRunner.class)
public class RootWindowContainerTests extends WindowTestsBase {

    private static final int FAKE_CALLING_UID = 667;

    @Test
    public void testIsAnyNonToastWindowVisibleForUid_oneToastOneAppStartOneNonToastBothVisible() {
        final WindowState toastyToast = createWindow(null, TYPE_TOAST, "toast", FAKE_CALLING_UID);
        final WindowState app = createWindow(null, TYPE_APPLICATION, "app", FAKE_CALLING_UID);
        final WindowState appStart = createWindow(null, TYPE_APPLICATION_STARTING, "appStarting",
                FAKE_CALLING_UID);
        toastyToast.mHasSurface = true;
        app.mHasSurface = true;
        appStart.mHasSurface = true;

        assertTrue(toastyToast.isVisibleNow());
        assertTrue(app.isVisibleNow());
        assertTrue(appStart.isVisibleNow());
        assertTrue(mWm.mRoot.isAnyNonToastWindowVisibleForUid(FAKE_CALLING_UID));
    }

    @Test
    public void testIsAnyNonToastWindowVisibleForUid_onlyToastVisible() {
        final WindowState toastyToast = createWindow(null, TYPE_TOAST, "toast", FAKE_CALLING_UID);
        toastyToast.mHasSurface = true;

        assertTrue(toastyToast.isVisibleNow());
        assertFalse(mWm.mRoot.isAnyNonToastWindowVisibleForUid(FAKE_CALLING_UID));
    }

    @Test
    public void testIsAnyNonToastWindowVisibleForUid_onlyAppStartingVisible() {
        final WindowState appStart = createWindow(null, TYPE_APPLICATION_STARTING, "appStarting",
                FAKE_CALLING_UID);
        appStart.mHasSurface = true;

        assertTrue(appStart.isVisibleNow());
        assertFalse(mWm.mRoot.isAnyNonToastWindowVisibleForUid(FAKE_CALLING_UID));
    }

    @Test
    public void testIsAnyNonToastWindowVisibleForUid_aFewNonToastButNoneVisible() {
        final WindowState statusBar =
                createWindow(null, TYPE_STATUS_BAR, "statusBar", FAKE_CALLING_UID);
        final WindowState notificationShade = createWindow(null, TYPE_NOTIFICATION_SHADE,
                "notificationShade", FAKE_CALLING_UID);
        final WindowState app = createWindow(null, TYPE_APPLICATION, "app", FAKE_CALLING_UID);

        assertFalse(statusBar.isVisibleNow());
        assertFalse(notificationShade.isVisibleNow());
        assertFalse(app.isVisibleNow());
        assertFalse(mWm.mRoot.isAnyNonToastWindowVisibleForUid(FAKE_CALLING_UID));
    }

    @Test
    public void testUpdateDefaultDisplayWindowingModeOnSettingsRetrieved() {
        assertEquals(WindowConfiguration.WINDOWING_MODE_FULLSCREEN,
                mWm.getDefaultDisplayContentLocked().getWindowingMode());

        mWm.mIsPc = true;
        mWm.mAtmService.mSupportsFreeformWindowManagement = true;

        mWm.mRoot.onSettingsRetrieved();

        assertEquals(WindowConfiguration.WINDOWING_MODE_FREEFORM,
                mWm.getDefaultDisplayContentLocked().getWindowingMode());
    }

    /**
     * This test ensures that an existing single instance activity with alias name can be found by
     * the same activity info. So {@link ActivityStarter#getReusableTask} won't miss it that leads
     * to create an unexpected new instance.
     */
    @Test
    public void testFindActivityByTargetComponent() {
        final ComponentName aliasComponent = ComponentName.createRelative(
                ActivityTestsBase.DEFAULT_COMPONENT_PACKAGE_NAME, ".AliasActivity");
        final ComponentName targetComponent = ComponentName.createRelative(
                aliasComponent.getPackageName(), ".TargetActivity");
        final ActivityRecord activity = new ActivityTestsBase.ActivityBuilder(mWm.mAtmService)
                .setComponent(aliasComponent)
                .setTargetActivity(targetComponent.getClassName())
                .setLaunchMode(ActivityInfo.LAUNCH_SINGLE_INSTANCE)
                .setCreateTask(true)
                .build();

        assertEquals(activity, mWm.mRoot.findActivity(activity.intent, activity.info,
                false /* compareIntentFilters */));
    }
}