/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.phoenix.util;

import org.apache.hadoop.hbase.CellUtil;
import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
import org.apache.hadoop.hbase.regionserver.Store;
import org.apache.hadoop.hbase.regionserver.StoreFile;
import org.apache.hadoop.hbase.util.Bytes;

public class RepairUtil {
  public static boolean isLocalIndexStoreFilesConsistent(RegionCoprocessorEnvironment environment,
    Store store) {
    byte[] startKey = environment.getRegion().getRegionInfo().getStartKey();
    byte[] endKey = environment.getRegion().getRegionInfo().getEndKey();
    byte[] indexKeyEmbedded = startKey.length == 0 ? new byte[endKey.length] : startKey;
    for (StoreFile file : store.getStorefiles()) {
      if (file.getFirstKey().isPresent() && file.getFirstKey().get() != null) {
        byte[] fileFirstRowKey = CellUtil.cloneRow(file.getFirstKey().get());
        if (
          (fileFirstRowKey != null && Bytes.compareTo(fileFirstRowKey, 0, indexKeyEmbedded.length,
            indexKeyEmbedded, 0, indexKeyEmbedded.length) != 0)
        ) {
          return false;
        }
      }
    }
    return true;
  }

}
