/*
 * Copyright (C) 2020 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 android.os;

import static libcore.junit.util.compat.CoreCompatChangeRule.DisableCompatChanges;
import static libcore.junit.util.compat.CoreCompatChangeRule.EnableCompatChanges;

import static org.junit.Assert.assertEquals;

import android.Manifest;
import android.compat.testing.PlatformCompatChangeRule;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentSender;
import android.content.pm.PackageInstaller;
import android.content.pm.PackageManager;
import android.perftests.utils.BenchmarkState;
import android.perftests.utils.PerfStatusReporter;
import android.permission.PermissionManager;

import androidx.test.ext.junit.runners.AndroidJUnit4;
import androidx.test.filters.LargeTest;
import androidx.test.platform.app.InstrumentationRegistry;

import com.android.compatibility.common.util.AdoptShellPermissionsRule;
import com.android.cts.install.lib.Install;
import com.android.cts.install.lib.InstallUtils;
import com.android.cts.install.lib.LocalIntentSender;
import com.android.cts.install.lib.TestApp;

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

import java.io.IOException;

@RunWith(AndroidJUnit4.class)
@LargeTest
public class PackageManagerPerfTest {
    private static final String PERMISSION_NAME_EXISTS =
            "com.android.perftests.packagemanager.TestPermission";
    private static final String PERMISSION_NAME_DOESNT_EXIST =
            "com.android.perftests.packagemanager.TestBadPermission";
    private static final ComponentName TEST_ACTIVITY =
            new ComponentName("com.android.perftests.packagemanager",
                    "android.perftests.utils.PerfTestActivity");
    private static final String TEST_FIELD = "test";
    private static final String TEST_VALUE = "value";

    @Rule
    public final PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();

    @Rule
    public final PlatformCompatChangeRule mPlatformCompatChangeRule =
            new PlatformCompatChangeRule();
    @Rule
    public AdoptShellPermissionsRule mAdoptShellPermissionsRule = new AdoptShellPermissionsRule(
            InstrumentationRegistry.getInstrumentation().getUiAutomation(),
            Manifest.permission.INSTALL_PACKAGES,
            Manifest.permission.DELETE_PACKAGES);

    final Context mContext = InstrumentationRegistry.getInstrumentation().getContext();
    private PackageInstaller mPackageInstaller;

    public PackageManagerPerfTest() throws PackageManager.NameNotFoundException {
        mPackageInstaller = mContext.getPackageManager().getPackageInstaller();
    }

    private void installTestApp(TestApp testApp) throws IOException, InterruptedException {
        Install install = Install.single(testApp);
        final int expectedSessionId = install.createSession();
        PackageInstaller.Session session =
                InstallUtils.openPackageInstallerSession(expectedSessionId);
        PersistableBundle bundle = new PersistableBundle();
        bundle.putString(TEST_FIELD, TEST_VALUE);
        session.setAppMetadata(bundle);
        LocalIntentSender localIntentSender = new LocalIntentSender();
        session.commit(localIntentSender.getIntentSender());
        Intent intent = localIntentSender.getResult();
        InstallUtils.assertStatusSuccess(intent);
    }

    private void uninstallTestApp(String packageName) throws InterruptedException {
        LocalIntentSender localIntentSender = new LocalIntentSender();
        IntentSender intentSender = localIntentSender.getIntentSender();
        mPackageInstaller.uninstall(packageName, intentSender);
        Intent intent = localIntentSender.getResult();
        InstallUtils.assertStatusSuccess(intent);
    }

    @Before
    public void setup() {
        PackageManager.disableApplicationInfoCache();
        PackageManager.disablePackageInfoCache();
        PermissionManager.disablePermissionCache();
        PermissionManager.disablePackageNamePermissionCache();
    }

    @Test
    public void testGetAppMetadata() throws Exception {
        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        installTestApp(TestApp.A1);
        final PackageManager pm =
                InstrumentationRegistry.getInstrumentation().getTargetContext().getPackageManager();
        final String packageName = TestApp.A1.getPackageName();

        while (state.keepRunning()) {
            PersistableBundle bundle = pm.getAppMetadata(packageName);
            state.pauseTiming();
            assertEquals(bundle.size(), 1);
            assertEquals(bundle.getString(TEST_FIELD), TEST_VALUE);
            state.resumeTiming();
        }
        uninstallTestApp(packageName);
    }

    @Test
    @DisableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testCheckPermissionExists() {
        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        final PackageManager pm =
                InstrumentationRegistry.getInstrumentation().getTargetContext().getPackageManager();
        final String packageName = TEST_ACTIVITY.getPackageName();

        while (state.keepRunning()) {
            int ret = pm.checkPermission(PERMISSION_NAME_EXISTS, packageName);
        }
    }

    @Test
    @EnableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testCheckPermissionExistsWithFiltering() {
        testCheckPermissionExists();
    }

    @Test
    @DisableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testCheckPermissionDoesntExist() {
        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        final PackageManager pm =
                InstrumentationRegistry.getInstrumentation().getTargetContext().getPackageManager();
        final String packageName = TEST_ACTIVITY.getPackageName();

        while (state.keepRunning()) {
            int ret = pm.checkPermission(PERMISSION_NAME_DOESNT_EXIST, packageName);
        }
    }

    @Test
    @EnableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testCheckPermissionDoesntExistWithFiltering() {
        testCheckPermissionDoesntExist();
    }

    @Test
    @DisableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testQueryIntentActivities() {
        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        final PackageManager pm =
                InstrumentationRegistry.getInstrumentation().getTargetContext().getPackageManager();
        final Intent intent = new Intent("com.android.perftests.core.PERFTEST");

        while (state.keepRunning()) {
            pm.queryIntentActivities(intent, 0);
        }
    }

    @Test
    @EnableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testQueryIntentActivitiesWithFiltering() {
        testQueryIntentActivities();
    }

    @Test
    @DisableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testGetPackageInfo() throws Exception {
        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        final PackageManager pm =
                InstrumentationRegistry.getInstrumentation().getTargetContext().getPackageManager();

        while (state.keepRunning()) {
            pm.getPackageInfo(TEST_ACTIVITY.getPackageName(), 0);
        }
    }

    @Test
    @EnableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testGetPackageInfoWithFiltering() throws Exception {
        testGetPackageInfo();
    }

    @Test
    @DisableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testGetApplicationInfo() throws Exception {
        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        final PackageManager pm =
                InstrumentationRegistry.getInstrumentation().getTargetContext().getPackageManager();

        while (state.keepRunning()) {
            pm.getApplicationInfo(TEST_ACTIVITY.getPackageName(), 0);
        }
    }

    @Test
    @EnableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testGetApplicationInfoWithFiltering() throws Exception {
        testGetApplicationInfo();
    }

    @Test
    @DisableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testGetActivityInfo() throws Exception {
        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        final PackageManager pm =
                InstrumentationRegistry.getInstrumentation().getTargetContext().getPackageManager();

        while (state.keepRunning()) {
            pm.getActivityInfo(TEST_ACTIVITY, 0);
        }
    }

    @Test
    @EnableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testGetActivityInfoWithFiltering() throws Exception {
        testGetActivityInfo();
    }

    @Test
    @DisableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testGetInstalledPackages() throws Exception {
        final BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
        final PackageManager pm =
                InstrumentationRegistry.getInstrumentation().getTargetContext().getPackageManager();

        while (state.keepRunning()) {
            pm.getInstalledPackages(0);
        }
    }

    @Test
    @EnableCompatChanges(PackageManager.FILTER_APPLICATION_QUERY)
    public void testGetInstalledPackagesWithFiltering() throws Exception {
        testGetInstalledPackages();
    }
}