package cn.ac.iie.dao

import cn.ac.iie.config.ApplicationConfig
import cn.ac.iie.utils.SparkSessionUtil.spark
import org.apache.spark.sql.DataFrame
import org.slf4j.LoggerFactory

object BaseClickhouseData {
  private val LOG = LoggerFactory.getLogger(BaseClickhouseData.getClass)

  val currentHour: Long = System.currentTimeMillis / (60 * 60 * 1000) * 60 * 60
  private val timeLimit: (Long, Long) = getTimeLimit

  private def initClickhouseData(sql: String): DataFrame = {

    val dataFrame: DataFrame = spark.read.format("jdbc")
      .option("url", ApplicationConfig.SPARK_READ_CLICKHOUSE_URL)
      .option("dbtable", sql)
      .option("driver", ApplicationConfig.SPARK_READ_CLICKHOUSE_DRIVER)
      .option("user", ApplicationConfig.SPARK_READ_CLICKHOUSE_USER)
      .option("password", ApplicationConfig.SPARK_READ_CLICKHOUSE_PASSWORD)
      .option("numPartitions", ApplicationConfig.NUMPARTITIONS)
      .option("partitionColumn", ApplicationConfig.SPARK_READ_CLICKHOUSE_PARTITIONCOLUMN)
      .option("lowerBound", timeLimit._2)
      .option("upperBound", timeLimit._1)
      .option("fetchsize", ApplicationConfig.SPARK_READ_CLICKHOUSE_FETCHSIZE)
      .option("socket_timeout", ApplicationConfig.CLICKHOUSE_SOCKET_TIMEOUT)
      .load()
    dataFrame.printSchema()
    dataFrame.createOrReplaceGlobalTempView("dbtable")

    dataFrame
  }

  def getVertexFqdnDf: DataFrame = {
    val sql =
      """
        |(SELECT
        | FQDN,MAX( LAST_FOUND_TIME ) AS LAST_FOUND_TIME,MIN( FIRST_FOUND_TIME ) AS FIRST_FOUND_TIME
        |FROM
        | ((SELECT
        |    ssl_sni AS FQDN,MAX( common_recv_time ) AS LAST_FOUND_TIME,MIN( common_recv_time ) AS FIRST_FOUND_TIME
        |   FROM connection_record_log
        |   WHERE common_schema_type = 'SSL' GROUP BY ssl_sni
        |  )UNION ALL
        |  (SELECT
        |    http_host AS FQDN,MAX( common_recv_time ) AS LAST_FOUND_TIME,MIN( common_recv_time ) AS FIRST_FOUND_TIME
        |   FROM connection_record_log
        |   WHERE common_schema_type = 'HTTP' GROUP BY http_host))
        |GROUP BY FQDN HAVING FQDN != '') as dbtable
      """.stripMargin
    LOG.warn(sql)
    val frame = initClickhouseData(sql)
    frame.printSchema()
    frame
  }

  def getVertexIpDf: DataFrame = {
    val where = "common_recv_time >= " + timeLimit._2 + " AND common_recv_time < " + timeLimit._1
    val sql =
      s"""
         |(SELECT * FROM
         |((SELECT common_client_ip AS IP,MIN(common_recv_time) AS FIRST_FOUND_TIME,
         |MAX(common_recv_time) AS LAST_FOUND_TIME,
         |count(*) as SESSION_COUNT,
         |SUM(common_c2s_byte_num+common_s2c_byte_num) as BYTES_SUM,
         |groupUniqArray(2)(common_link_info_c2s)[2] as common_link_info,
         |'client' as ip_type
         |FROM connection_record_log
         |where $where
         |group by common_client_ip)
         |UNION ALL
         |(SELECT common_server_ip AS IP,
         |MIN(common_recv_time) AS FIRST_FOUND_TIME,
         |MAX(common_recv_time) AS LAST_FOUND_TIME,
         |count(*) as SESSION_COUNT,
         |SUM(common_c2s_byte_num+common_s2c_byte_num) as BYTES_SUM,
         |groupUniqArray(2)(common_link_info_s2c)[2] as common_link_info,
         |'server' as ip_type
         |FROM connection_record_log
         |where $where
         |group by common_server_ip))) as dbtable
      """.stripMargin
    LOG.warn(sql)
    val frame = initClickhouseData(sql)
    frame.printSchema()
    frame
  }


  def getRelationFqdnLocateIpDf: DataFrame = {
    val where = "common_recv_time >= " + timeLimit._2 + " AND common_recv_time < " + timeLimit._1
    val sql =
      s"""
         |(SELECT * FROM
         |((SELECT ssl_sni AS FQDN,common_server_ip,MAX(common_recv_time) AS LAST_FOUND_TIME,MIN(common_recv_time) AS FIRST_FOUND_TIME,COUNT(*) AS COUNT_TOTAL,
         |toString(groupUniqArray(${ApplicationConfig.DISTINCT_CLIENT_IP_NUM})(common_client_ip)) AS DIST_CIP_RECENT,'TLS' AS  schema_type
         |FROM connection_record_log
         |WHERE $where and common_schema_type = 'SSL' GROUP BY ssl_sni,common_server_ip)
         |UNION ALL
         |(SELECT http_host AS FQDN,common_server_ip,MAX(common_recv_time) AS LAST_FOUND_TIME,MIN(common_recv_time) AS FIRST_FOUND_TIME,COUNT(*) AS COUNT_TOTAL,
         |toString(groupUniqArray(${ApplicationConfig.DISTINCT_CLIENT_IP_NUM})(common_client_ip)) AS DIST_CIP_RECENT,'HTTP' AS schema_type
         |FROM connection_record_log
         |WHERE $where and common_schema_type = 'HTTP' GROUP BY http_host,common_server_ip))
         |WHERE FQDN != '') as dbtable
      """.stripMargin
    LOG.warn(sql)
    val frame = initClickhouseData(sql)
    frame.printSchema()
    frame
  }

  def getRelationSubidLocateIpDf: DataFrame = {
    val where =
      s"""
         | common_recv_time >= ${timeLimit._2}
         | AND common_recv_time < ${timeLimit._1}
         | AND common_subscriber_id != ''
         | AND radius_framed_ip != ''
      """.stripMargin
    val sql =
      s"""
         |(
         |SELECT common_subscriber_id,radius_framed_ip,MAX(common_recv_time) as LAST_FOUND_TIME,MIN(common_recv_time) as FIRST_FOUND_TIME
         |FROM radius_record_log
         |WHERE $where GROUP BY common_subscriber_id,radius_framed_ip
         |) as dbtable
      """.stripMargin
    LOG.warn(sql)
    val frame = initClickhouseData(sql)
    frame.printSchema()
    frame
  }

  def getVertexSubidDf: DataFrame = {
    val where =
      s"""
         | common_recv_time >= ${timeLimit._2}
         | AND common_recv_time < ${timeLimit._1}
         | AND common_subscriber_id != ''
         | AND radius_framed_ip != ''
      """.stripMargin
    val sql =
      s"""
         |(
         |SELECT common_subscriber_id,MAX(common_recv_time) as LAST_FOUND_TIME,MIN(common_recv_time) as FIRST_FOUND_TIME FROM radius_record_log
         |WHERE $where GROUP BY common_subscriber_id
         |)as dbtable
      """.stripMargin
    LOG.warn(sql)
    val frame = initClickhouseData(sql)
    frame.printSchema()
    frame
  }

  def getVertexFramedIpDf: DataFrame = {
    val where =
      s"""
         | common_recv_time >= ${timeLimit._2}
         | AND common_recv_time < ${timeLimit._1}
         | AND common_subscriber_id != ''
         | AND radius_framed_ip != ''
      """.stripMargin
    val sql =
      s"""
         |(
         |SELECT DISTINCT radius_framed_ip,common_recv_time as LAST_FOUND_TIME FROM radius_record_log WHERE $where
         |)as dbtable
      """.stripMargin
    LOG.warn(sql)
    val frame = initClickhouseData(sql)
    frame.printSchema()
    frame
  }


  private def getTimeLimit: (Long, Long) = {
    var maxTime = 0L
    var minTime = 0L
    ApplicationConfig.CLICKHOUSE_TIME_LIMIT_TYPE match {
      case 0 =>
        maxTime = currentHour
        minTime = maxTime - ApplicationConfig.UPDATE_INTERVAL
      case 1 =>
        maxTime = ApplicationConfig.READ_CLICKHOUSE_MAX_TIME
        minTime = ApplicationConfig.READ_CLICKHOUSE_MIN_TIME
      case _ =>
    }
    (maxTime, minTime)
  }

}