/*
 * 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.pherf.configuration;

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlType;
import org.apache.phoenix.pherf.rules.RulesApplier;

@XmlType
public class Query {

  private String id;
  private String queryGroup;
  private String tenantId;
  private String statement;
  private Long expectedAggregateRowCount;
  private String ddl;
  private boolean useGlobalConnection;
  private Pattern pattern;
  private long timeoutDuration = Long.MAX_VALUE;

  public Query() {
    pattern = Pattern.compile("\\[.*?\\]");
  }

  /**
   * SQL statement
   */
  @XmlAttribute
  public String getStatement() {
    return statement;
  }

  public String getDynamicStatement(RulesApplier ruleApplier, Scenario scenario) throws Exception {
    String ret = this.statement;
    String needQuotes = "";
    Matcher m = pattern.matcher(ret);
    while (m.find()) {
      String dynamicField = m.group(0).replace("[", "").replace("]", "");
      Column dynamicColumn = ruleApplier.getRule(dynamicField, scenario);
      // For Json we can have queries like info[5].name and it should not match
      if (dynamicColumn != null && dynamicColumn.getType() != null) {
        needQuotes = (dynamicColumn.getType() == DataTypeMapping.CHAR
          || dynamicColumn.getType() == DataTypeMapping.VARCHAR) ? "'" : "";
        ret = ret.replace("[" + dynamicField + "]",
          needQuotes + ruleApplier.getDataValue(dynamicColumn).getValue() + needQuotes);
      }
    }
    return ret;
  }

  public void setStatement(String statement) {
    // normalize statement - merge all consecutive spaces into one
    this.statement = statement.replaceAll("\\s+", " ");
  }

  /**
   * Tenant Id used by connection of this query
   */
  @XmlAttribute
  public String getTenantId() {
    return tenantId;
  }

  public void setTenantId(String tenantId) {
    this.tenantId = tenantId;
  }

  /**
   * Expected aggregate row count is matched if specified
   */
  @XmlAttribute
  public Long getExpectedAggregateRowCount() {
    return expectedAggregateRowCount;
  }

  public void setExpectedAggregateRowCount(Long expectedAggregateRowCount) {
    this.expectedAggregateRowCount = expectedAggregateRowCount;
  }

  /**
   * DDL is executed only once. If tenantId is specified then DDL is executed with tenant specific
   * connection.
   */
  @XmlAttribute
  public String getDdl() {
    return ddl;
  }

  public void setDdl(String ddl) {
    this.ddl = ddl;
  }

  /**
   * queryGroup attribute is just a string value to help correlate queries across sets or files.
   * This helps to make sense of reporting results.
   * @return the group id
   */
  @XmlAttribute
  public String getQueryGroup() {
    return queryGroup;
  }

  public void setQueryGroup(String queryGroup) {
    this.queryGroup = queryGroup;
  }

  /**
   * Set hint to query
   */
  public void setHint(String queryHint) {
    if (null != queryHint) {
      this.statement =
        this.statement.toUpperCase().replace("SELECT ", "SELECT /*+ " + queryHint + "*/ ");
    }
  }

  /**
   * Query ID, Use UUID if none specified
   */
  @XmlAttribute
  public String getId() {
    if (null == this.id) {
      this.id = java.util.UUID.randomUUID().toString();
    }
    return id;
  }

  public void setId(String id) {
    this.id = id;
  }

  @XmlAttribute
  public boolean isUseGlobalConnection() {
    return useGlobalConnection;
  }

  public void setUseGlobalConnection(boolean useGlobalConnection) {
    this.useGlobalConnection = useGlobalConnection;
  }

  @XmlAttribute
  public long getTimeoutDuration() {
    return this.timeoutDuration;
  }

  public void setTimeoutDuration(long timeoutDuration) {
    this.timeoutDuration = timeoutDuration;
  }
}
