/*
    * 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.shardingsphere.db.protocol.mysql.packet.command.query.text.query;
  
  import lombok.Getter;
  import org.apache.shardingsphere.db.protocol.mysql.packet.command.MySQLCommandPacket;
  import org.apache.shardingsphere.db.protocol.mysql.packet.command.MySQLCommandPacketType;
  import org.apache.shardingsphere.db.protocol.mysql.payload.MySQLPacketPayload;
  import org.apache.shardingsphere.db.protocol.packet.sql.SQLReceivedPacket;
  import org.apache.shardingsphere.infra.hint.HintValueContext;
  import org.apache.shardingsphere.infra.hint.SQLHintUtils;
  
  /**
   * COM_QUERY command packet for MySQL.
   *
   * @see <a href="https://dev.mysql.com/doc/dev/mysql-server/latest/page_protocol_com_query.html">COM_QUERY</a>
   */
  public final class MySQLComQueryPacket extends MySQLCommandPacket implements SQLReceivedPacket {
      
      private final String sql;
      
      @Getter
      private final HintValueContext hintValueContext;
      
      public MySQLComQueryPacket(final String sql) {
          super(MySQLCommandPacketType.COM_QUERY);
          hintValueContext = SQLHintUtils.extractHint(sql);
          this.sql = SQLHintUtils.removeHint(sql);
      }
      
      public MySQLComQueryPacket(final MySQLPacketPayload payload) {
          super(MySQLCommandPacketType.COM_QUERY);
          String originSQL = payload.readStringEOF();
          hintValueContext = SQLHintUtils.extractHint(originSQL);
          sql = SQLHintUtils.removeHint(originSQL);
      }
      
      @Override
      public void doWrite(final MySQLPacketPayload payload) {
          payload.writeStringEOF(sql);
      }
      
      @Override
      public String getSQL() {
          return sql;
      }
  }