text: /*
   * Copyright (c) 2017 the ACRA team
   *
   * 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 org.acra.legacy;
  
  import android.content.Context;
  import androidx.annotation.NonNull;
  
  import org.acra.ACRA;
  import org.acra.ACRAConstants;
  import org.acra.file.CrashReportFileNameParser;
  import org.acra.file.ReportLocator;
  
  import java.io.File;
  import java.io.FilenameFilter;
  
  import static org.acra.ACRA.LOG_TAG;
  
  /**
   * Migrates reports from the pre 4.8.0 location to the 4.8.0+ locations.
   */
  final class ReportMigrator {
  
      private final Context context;
      private final CrashReportFileNameParser fileNameParser = new CrashReportFileNameParser();
      private final ReportLocator reportLocator;
  
      ReportMigrator(@NonNull Context context) {
          this.context = context;
          this.reportLocator = new ReportLocator(context);
      }
  
      void migrate() {
          ACRA.log.i(LOG_TAG, "Migrating unsent ACRA reports to new file locations");
  
          final File[] reportFiles = getCrashReportFiles();
  
          for (final File file : reportFiles) {
              // Move it to unapproved or approved folders.
              final String fileName = file.getName();
              if (fileNameParser.isApproved(fileName)) {
                  if (file.renameTo(new File(reportLocator.getApprovedFolder(), fileName))) {
                      if (ACRA.DEV_LOGGING) ACRA.log.d(LOG_TAG, "Cold not migrate unsent ACRA crash report : " + fileName);
                  }
              } else {
                  if (file.renameTo(new File(reportLocator.getUnapprovedFolder(), fileName))) {
                      if (ACRA.DEV_LOGGING) ACRA.log.d(LOG_TAG, "Cold not migrate unsent ACRA crash report : " + fileName);
                  }
              }
          }
          ACRA.log.i(LOG_TAG, "Migrated " + reportFiles.length + " unsent reports");
      }
  
      /**
       * Returns an array containing the names of pending crash report files.
       *
       * @return an array containing the names of pending crash report files.
       */
      @NonNull
      private File[] getCrashReportFiles() {
          final File dir = context.getFilesDir();
          if (dir == null) {
              ACRA.log.w(LOG_TAG, "Application files directory does not exist! The application may not be installed correctly. Please try reinstalling.");
              return new File[0];
          }
  
          if (ACRA.DEV_LOGGING) ACRA.log.d(LOG_TAG, "Looking for error files in " + dir.getAbsolutePath());
  
          // Filter for ".stacktrace" files
          final FilenameFilter filter = (dir1, name) -> name.endsWith(ACRAConstants.REPORTFILE_EXTENSION);
          final File[] result = dir.listFiles(filter);
          return (result == null) ? new File[0] : result;
      }
  
  }
  