content: /*
   * Copyright (C) 2015 AChep@xda <artemchep@gmail.com>
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2
   * of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   * MA  02110-1301, USA.
   */
  package com.achep.acdisplay.permissions;
  
  import android.annotation.TargetApi;
  import android.app.AppOpsManager;
  import android.content.Context;
  import android.content.Intent;
  import android.content.pm.PackageManager;
  import android.os.Build;
  import android.provider.Settings;
  import androidx.annotation.DrawableRes;
  import androidx.annotation.NonNull;
  import androidx.annotation.StringRes;
  
  import com.achep.acdisplay.R;
  import com.achep.base.Device;
  import com.achep.base.permissions.Permission;
  import com.achep.base.tests.Check;
  import com.achep.base.utils.PackageUtils;
  
  /**
   * The Usage stats permission.
   *
   * @author Artem Chepurnoy
   * @see android.app.usage.UsageStatsManager
   */
  @TargetApi(Build.VERSION_CODES.LOLLIPOP)
  public final class PermissionUsageStats extends Permission {
  
      @NonNull
      private final PackageManager mPackageManager;
  
      public PermissionUsageStats(@NonNull Context context) {
          super(context);
          Check.getInstance().isTrue(Device.hasLollipopApi());
          mPackageManager = mContext.getPackageManager();
      }
  
      /**
       * {@inheritDoc}
       */
      public boolean isGranted() {
          final String packageName = PackageUtils.getName(mContext);
          final int uid;
          try {
              uid = mPackageManager.getApplicationInfo(packageName, 0).uid;
          } catch (PackageManager.NameNotFoundException e) {
              throw new RuntimeException(e);
          }
  
          int result = getAppOpsManager().checkOp(AppOpsManager.OPSTR_GET_USAGE_STATS, uid, packageName);
          return result == AppOpsManager.MODE_ALLOWED;
      }
  
      @NonNull
      private AppOpsManager getAppOpsManager() {
          return (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE);
      }
  
      /**
       * {@inheritDoc}
       */
      @NonNull
      @Override
      public Intent getIntentSettings() {
          return new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
      }
  
      //-- UI -------------------------------------------------------------------
  
      /**
       * {@inheritDoc}
       */
      @DrawableRes
      public int getIconResource() {
          return R.drawable.ic_settings_apps_white;
      }
  
      /**
       * {@inheritDoc}
       */
      @StringRes
      public int getTitleResource() {
          return R.string.permissions_usage_stats;
      }
  
      /**
       * {@inheritDoc}
       */
      @StringRes
      public int getSummaryResource() {
          return R.string.permissions_usage_stats_description;
      }
  
      /**
       * {@inheritDoc}
       */
      @StringRes
      public int getErrorResource() {
          return R.string.permissions_usage_stats_error;
      }
  
  }
  