/*
 * 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.end2end.index;

import static org.apache.phoenix.coprocessorclient.MetaDataProtocol.PHOENIX_MAJOR_VERSION;
import static org.apache.phoenix.coprocessorclient.MetaDataProtocol.PHOENIX_PATCH_NUMBER;
import static org.junit.Assert.assertEquals;

import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.util.Map;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.client.coprocessor.Batch;
import org.apache.hadoop.hbase.ipc.CoprocessorRpcUtils.BlockingRpcCallback;
import org.apache.hadoop.hbase.ipc.ServerRpcController;
import org.apache.phoenix.compat.hbase.ByteStringer;
import org.apache.phoenix.coprocessor.generated.MetaDataProtos.GetTableRequest;
import org.apache.phoenix.coprocessor.generated.MetaDataProtos.MetaDataResponse;
import org.apache.phoenix.coprocessor.generated.MetaDataProtos.MetaDataService;
import org.apache.phoenix.coprocessorclient.MetaDataProtocol.MutationCode;
import org.apache.phoenix.end2end.ParallelStatsDisabledIT;
import org.apache.phoenix.end2end.ParallelStatsDisabledTest;
import org.apache.phoenix.hbase.index.util.VersionUtil;
import org.apache.phoenix.jdbc.PhoenixConnection;
import org.apache.phoenix.jdbc.PhoenixDatabaseMetaData;
import org.apache.phoenix.query.ConnectionQueryServices;
import org.apache.phoenix.schema.PIndexState;
import org.apache.phoenix.schema.PName;
import org.apache.phoenix.schema.types.PVarchar;
import org.apache.phoenix.util.ByteUtil;
import org.apache.phoenix.util.Closeables;
import org.apache.phoenix.util.EnvironmentEdgeManager;
import org.apache.phoenix.util.IndexUtil;
import org.apache.phoenix.util.SchemaUtil;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Category(ParallelStatsDisabledTest.class)
public class InvalidIndexStateClientSideIT extends ParallelStatsDisabledIT {
  private static final Logger LOGGER = LoggerFactory.getLogger(InvalidIndexStateClientSideIT.class);

  @Test
  public void testCachedConnections() throws Throwable {
    final String schemaName = generateUniqueName();
    final String tableName = generateUniqueName();
    final String fullTableName = SchemaUtil.getTableName(schemaName, tableName);
    final String indexName = generateUniqueName();
    final String fullIndexName = SchemaUtil.getTableName(schemaName, indexName);
    final Connection conn = DriverManager.getConnection(getUrl());

    // create table and indices
    String createTableSql = "CREATE TABLE " + fullTableName
      + "(org_id VARCHAR NOT NULL PRIMARY KEY, v1 INTEGER, v2 INTEGER, v3 INTEGER)";
    conn.createStatement().execute(createTableSql);
    conn.createStatement().execute("CREATE INDEX " + indexName + " ON " + fullTableName + "(v1)");
    conn.commit();
    PhoenixConnection phoenixConn = conn.unwrap(PhoenixConnection.class);
    ConnectionQueryServices queryServices = phoenixConn.getQueryServices();
    Table metaTable =
      phoenixConn.getQueryServices().getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
    long ts = EnvironmentEdgeManager.currentTimeMillis();
    MutationCode code =
      IndexUtil.updateIndexState(fullIndexName, ts, metaTable, PIndexState.PENDING_DISABLE)
        .getMutationCode();
    assertEquals(MutationCode.TABLE_ALREADY_EXISTS, code);
    ts = EnvironmentEdgeManager.currentTimeMillis();

    final byte[] schemaBytes = PVarchar.INSTANCE.toBytes(schemaName);
    final byte[] tableBytes = PVarchar.INSTANCE.toBytes(tableName);
    PName tenantId = phoenixConn.getTenantId();
    final long tableTimestamp = HConstants.LATEST_TIMESTAMP;
    long tableResolvedTimestamp = HConstants.LATEST_TIMESTAMP;
    final long resolvedTimestamp = tableResolvedTimestamp;
    final byte[] tenantIdBytes = tenantId == null ? ByteUtil.EMPTY_BYTE_ARRAY : tenantId.getBytes();
    byte[] tableKey = SchemaUtil.getTableKey(tenantIdBytes, schemaBytes, tableBytes);
    Batch.Call<MetaDataService, MetaDataResponse> callable =
      new Batch.Call<MetaDataService, MetaDataResponse>() {
        @Override
        public MetaDataResponse call(MetaDataService instance) throws IOException {
          ServerRpcController controller = new ServerRpcController();
          BlockingRpcCallback<MetaDataResponse> rpcCallback =
            new BlockingRpcCallback<MetaDataResponse>();
          GetTableRequest.Builder builder = GetTableRequest.newBuilder();
          builder.setTenantId(ByteStringer.wrap(tenantIdBytes));
          builder.setSchemaName(ByteStringer.wrap(schemaBytes));
          builder.setTableName(ByteStringer.wrap(tableBytes));
          builder.setTableTimestamp(tableTimestamp);
          builder.setClientTimestamp(resolvedTimestamp);
          builder.setClientVersion(
            VersionUtil.encodeVersion(PHOENIX_MAJOR_VERSION, 13, PHOENIX_PATCH_NUMBER));
          instance.getTable(controller, builder.build(), rpcCallback);
          if (controller.getFailedOn() != null) {
            throw controller.getFailedOn();
          }
          return rpcCallback.get();
        }
      };
    int version = VersionUtil.encodeVersion(PHOENIX_MAJOR_VERSION, 13, PHOENIX_PATCH_NUMBER);
    LOGGER.info("Client version: " + version);
    Table ht = queryServices.getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
    try {
      final Map<byte[], MetaDataResponse> results =
        ht.coprocessorService(MetaDataService.class, tableKey, tableKey, callable);

      assert (results.size() == 1);
      MetaDataResponse result = results.values().iterator().next();
      assert (result.getTable().getIndexesCount() == 1);
      assert (PIndexState.valueOf(result.getTable().getIndexes(0).getIndexState())
        .equals(PIndexState.DISABLE));
    } catch (Exception e) {
      LOGGER.error("Exception Occurred: " + e);

    } finally {
      Closeables.closeQuietly(ht);
    }

  }

}
