/*
 * 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.cts.net.hostside;

import android.os.SystemClock;
import android.util.Log;

/**
 * Base class for metered and non-metered Doze Mode tests.
 */
abstract class AbstractDozeModeTestCase extends AbstractRestrictBackgroundNetworkTestCase {

    @Override
    protected final void setUp() throws Exception {
        super.setUp();

        if (!isSupported()) return;

        // Set initial state.
        removePowerSaveModeWhitelist(TEST_APP2_PKG);
        removePowerSaveModeExceptIdleWhitelist(TEST_APP2_PKG);
        setDozeMode(false);

        registerBroadcastReceiver();
    }

    @Override
    protected final void tearDown() throws Exception {
        super.tearDown();

        if (!isSupported()) return;

        try {
            tearDownMeteredNetwork();
        } finally {
            setDozeMode(false);
        }
    }

    @Override
    protected boolean isSupported() throws Exception {
        boolean supported = isDozeModeEnabled();
        if (!supported) {
            Log.i(TAG, "Skipping " + getClass() + "." + getName()
                    + "() because device does not support Doze Mode");
        }
        return supported;
    }

    /**
     * Sets the initial (non) metered network state.
     *
     * <p>By default is empty - it's up to subclasses to override.
     */
    protected void setUpMeteredNetwork() throws Exception {
    }

    /**
     * Resets the (non) metered network state.
     *
     * <p>By default is empty - it's up to subclasses to override.
     */
    protected void tearDownMeteredNetwork() throws Exception {
    }

    public void testBackgroundNetworkAccess_enabled() throws Exception {
        if (!isSupported()) return;

        setDozeMode(true);
        assertBackgroundNetworkAccess(false);

        assertsForegroundAlwaysHasNetworkAccess();
        assertBackgroundNetworkAccess(false);

        // Make sure foreground service doesn't lose network access upon enabling doze.
        setDozeMode(false);
        launchComponentAndAssertNetworkAccess(TYPE_COMPONENT_FOREGROUND_SERVICE);
        setDozeMode(true);
        assertForegroundNetworkAccess();
        stopForegroundService();
        assertBackgroundState();
        assertBackgroundNetworkAccess(false);
    }

    public void testBackgroundNetworkAccess_whitelisted() throws Exception {
        if (!isSupported()) return;

        setDozeMode(true);
        assertBackgroundNetworkAccess(false);

        addPowerSaveModeWhitelist(TEST_APP2_PKG);
        assertBackgroundNetworkAccess(true);

        removePowerSaveModeWhitelist(TEST_APP2_PKG);
        assertBackgroundNetworkAccess(false);

        addPowerSaveModeExceptIdleWhitelist(TEST_APP2_PKG);
        assertBackgroundNetworkAccess(false);

        removePowerSaveModeExceptIdleWhitelist(TEST_APP2_PKG);
        assertBackgroundNetworkAccess(false);

        assertsForegroundAlwaysHasNetworkAccess();
        assertBackgroundNetworkAccess(false);
    }

    public void testBackgroundNetworkAccess_disabled() throws Exception {
        if (!isSupported()) return;

        assertBackgroundNetworkAccess(true);

        assertsForegroundAlwaysHasNetworkAccess();
        assertBackgroundNetworkAccess(true);
    }

    public void testBackgroundNetworkAccess_enabledButWhitelistedOnNotificationAction()
            throws Exception {
        if (!isSupported()) return;

        setPendingIntentWhitelistDuration(NETWORK_TIMEOUT_MS);
        try {
            registerNotificationListenerService();
            setDozeMode(true);
            assertBackgroundNetworkAccess(false);

            testNotification(4, NOTIFICATION_TYPE_CONTENT);
            testNotification(8, NOTIFICATION_TYPE_DELETE);
            testNotification(15, NOTIFICATION_TYPE_FULL_SCREEN);
            testNotification(16, NOTIFICATION_TYPE_BUNDLE);
            testNotification(23, NOTIFICATION_TYPE_ACTION);
            testNotification(42, NOTIFICATION_TYPE_ACTION_BUNDLE);
            testNotification(108, NOTIFICATION_TYPE_ACTION_REMOTE_INPUT);
        } finally {
            resetDeviceIdleSettings();
        }
    }

    private void testNotification(int id, String type) throws Exception {
        sendNotification(id, type);
        assertBackgroundNetworkAccess(true);
        if (type.equals(NOTIFICATION_TYPE_ACTION)) {
            // Make sure access is disabled after it expires. Since this check considerably slows
            // downs the CTS tests, do it just once.
            SystemClock.sleep(NETWORK_TIMEOUT_MS);
            assertBackgroundNetworkAccess(false);
        }
    }

    // Must override so it only tests foreground service - once an app goes to foreground, device
    // leaves Doze Mode.
    @Override
    protected void assertsForegroundAlwaysHasNetworkAccess() throws Exception {
        launchComponentAndAssertNetworkAccess(TYPE_COMPONENT_FOREGROUND_SERVICE);
        stopForegroundService();
        assertBackgroundState();
    }
}