/*
 * Copyright (C) 2018 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.launcher3;

import static android.app.PendingIntent.FLAG_IMMUTABLE;
import static android.app.PendingIntent.FLAG_UPDATE_CURRENT;

import static com.android.launcher3.Flags.enableStrictMode;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.StrictMode;
import android.util.Log;

import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.graphics.BitmapCreationCheck;
import com.android.launcher3.logging.FileLog;

import javax.inject.Inject;

/**
 * Utility class to handle one time initializations of the main process
 */
public class MainProcessInitializer {

    @Inject
    public MainProcessInitializer() {
    }

    private static final boolean DEBUG_STRICT_MODE = false;

    protected void init(Context context) {
        FileLog.setDir(context.getApplicationContext().getFilesDir());

        if (BitmapCreationCheck.ENABLED) {
            BitmapCreationCheck.startTracking(context);
        }

        if (DEBUG_STRICT_MODE || (BuildConfig.IS_STUDIO_BUILD && enableStrictMode())) {
            StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
                    .detectDiskReads()
                    .detectDiskWrites()
                    .detectNetwork()   // or .detectAll() for all detectable problems
                    .penaltyLog()
                    .build());
            StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
                    .detectLeakedSqlLiteObjects()
                    .detectLeakedClosableObjects()
                    .detectActivityLeaks()
                    .penaltyLog()
                    .penaltyDeath()
                    .build());
        }

        if (BuildConfig.IS_DEBUG_DEVICE && FeatureFlags.NOTIFY_CRASHES.get()) {
            final String notificationChannelId = "com.android.launcher3.Debug";
            final String notificationChannelName = "Debug";
            final String notificationTag = "Debug";
            final int notificationId = 0;

            NotificationManager notificationManager =
                    context.getSystemService(NotificationManager.class);
            notificationManager.createNotificationChannel(new NotificationChannel(
                    notificationChannelId, notificationChannelName,
                    NotificationManager.IMPORTANCE_HIGH));

            Thread.currentThread().setUncaughtExceptionHandler((thread, throwable) -> {
                String stackTrace = Log.getStackTraceString(throwable);

                Intent shareIntent = new Intent(Intent.ACTION_SEND);
                shareIntent.setType("text/plain");
                shareIntent.putExtra(Intent.EXTRA_TEXT, stackTrace);
                shareIntent = Intent.createChooser(shareIntent, null);
                PendingIntent sharePendingIntent = PendingIntent.getActivity(
                        context, 0, shareIntent, FLAG_UPDATE_CURRENT | FLAG_IMMUTABLE);

                Notification notification = new Notification.Builder(context, notificationChannelId)
                        .setSmallIcon(android.R.drawable.ic_menu_close_clear_cancel)
                        .setContentTitle("Launcher crash detected!")
                        .setStyle(new Notification.BigTextStyle().bigText(stackTrace))
                        .addAction(android.R.drawable.ic_menu_share, "Share", sharePendingIntent)
                        .build();
                notificationManager.notify(notificationTag, notificationId, notification);

                Thread.UncaughtExceptionHandler defaultUncaughtExceptionHandler =
                        Thread.getDefaultUncaughtExceptionHandler();
                if (defaultUncaughtExceptionHandler != null) {
                    defaultUncaughtExceptionHandler.uncaughtException(thread, throwable);
                }
            });
        }
    }
}