/*

 * Copyright 2011 Tomas Zeman <tzeman@volny.cz>

 *

 * Licensed 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 radview.model

import java.util.Date

import net.liftweb.common._

import net.liftweb.mapper._

import radview.snippet.SessionSnippet

/*

  Table: v_radacct

 */

object Cdr extends Cdr with LongKeyedMetaMapper[Cdr] with Loggable {

  override def dbTableName = "v_radacct"

  override def dbDefaultConnectionIdentifier = RadAcctConnectionIdentifier

  def bySession(s: CdrSession) = findAll(By(sid, s.sid),

    OrderBy(radacctid, Ascending))

  def fieldsForList = List(sid, ts, inBytes, outBytes, statusType, acctuniqueid,

    username, groupname, realm, nasipaddress, nasportid, nasporttype,

    acctsessiontime, acctauthentic, serviceType, framedProto, framedIp,

    statusType, cell)

  import java.sql.{Date => SqlDate}

  implicit def d2sqlD(d: Date): SqlDate = new SqlDate(d.getTime)

  private def diff(col: MappedField[_, _]) = String.format(

    "MAX(%1$s) - MIN(%1$s) AS %1$s", col.dbColumnName)

  private def min(col: MappedField[_, _]) = String.format(

    "MIN(%1$s) AS %1$s", col.dbColumnName)

  private def max(col: MappedField[_, _]) = String.format(

    "MAX(%1$s) AS %1$s", col.dbColumnName)

  def sessions(from: Date, to: Date, field: MappedField[_, Cdr],

    value: String) = findAllByPreparedStatement { sc =>

      val selectS = List(sid.dbColumnName, diff(inBytes), diff(outBytes))

      val sql = String.format(

        "SELECT %s FROM %s WHERE %s = ? AND %s BETWEEN ? AND ? GROUP BY %s",

        selectS mkString ",", dbTableName, field.dbColumnName,

        ts.dbColumnName, sid.dbColumnName)

      logger.debug(sql + "; params: " + from + ", " + to + ", " +

        field.dbColumnName + "=" + value)

      val stm = sc.connection.prepareStatement(sql)

      stm.setString(1, value)

      stm.setDate(2, from)

      stm.setDate(3, to)

      stm

    }

  def session(sessionId: String): Box[CdrSession] =

    Box(sessions(List(sessionId)))

  def sessions(sessionIds: List[String]): List[CdrSession] = sessionIds match {

    case Nil => Nil

    case xs =>

      val cdr1 = findAllByPreparedStatement { sc =>

        val selectS = List(sid.dbColumnName, diff(inBytes), diff(outBytes),

          min(radacctid), max(ts))

        val sql = String.format(

          "SELECT %s FROM %s WHERE %s IN (%s) GROUP BY %s",

          selectS.mkString(","), dbTableName, sid.dbColumnName,

          sessionIds.map(r=>"?").mkString(","), sid.dbColumnName)

        logger.debug(sql)

        val stm = sc.connection.prepareStatement(sql)

        sessionIds.zipWithIndex.map { r => stm.setString(r._2 + 1, r._1) }

        stm

      }

      val cdr2 = Cdr.findAll(ByList(radacctid, cdr1 map { _.radacctid.is }))

      val tsMap = Map[String, Cdr]() ++ (cdr2 map { c => (c.sid.is, c) })

      for {

        c1 <- cdr1

        c2 <- tsMap.get(c1.sid.is)

      } yield {

        CdrSession(c1.sid, c2.ts, c1.ts, c1.inBytes, c1.outBytes, c2.cell)

      }

  }

}

class Cdr extends LongKeyedMapper[Cdr] with CellAware {

  def getSingleton = Cdr

  def primaryKeyField = radacctid

  object radacctid extends MappedLongIndex(this) {

    override def dbColumnName = "radacctid"

  }

  object sid extends MappedPoliteStringColName(this, 64, "acctsessionid",

    "Session Id") {

    override def asHtml =

      <a href={SessionSnippet.url(is)}>{super.asHtml}</a>

  }

  object acctuniqueid extends MappedPoliteStringColName(this, 32,

    "acctuniqueid", "Unique Id")

  object username extends MappedPoliteStringColName(this, 64, "username",

    "User")

  object groupname extends MappedPoliteStringColName(this, 64, "groupname",

    "Group")

  object realm extends MappedPoliteStringColName(this, 64, "realm", "Realm")

  object nasipaddress extends MappedPoliteStringColName(this, 15,

    "nasipaddress", "NAS IP")

  object nasportid extends MappedPoliteStringColName(this, 15, "nasportid",

    "NAS Port Id")

  object nasporttype extends MappedPoliteStringColName(this, 32,

    "nasporttype", "NAS Port Type")

  object acctsessiontime extends MappedIntColName(this, "acctsessiontime",

    "Session Time")

  object acctauthentic extends MappedPoliteStringColName(this, 32,

    "acctauthentic", "Authenticator")

  object inBytes extends MappedLongColName(this, "acctinputoctets",

    "Input bytes")

  object outBytes extends MappedLongColName(this, "acctoutputoctets",

    "Output bytes")

  object calledNo extends MappedPoliteStringColName(this, 50,

    "calledstationid", "Called No.")

  object callingNo extends MappedLongColName(this, "callingstationid",

    "Calling No.")

  object termCause extends MappedPoliteStringColName(this, 32,

    "acctterminatecause", "Termination Cause")

  object serviceType extends MappedPoliteStringColName(this, 32,

    "servicetype", "Service Type")

  object framedProto extends MappedPoliteStringColName(this, 32,

    "framedprotocol", "Framed Protocol")

  object framedIp extends MappedPoliteStringColName(this, 15,

    "framedipaddress", "Framed IP")

  object startDelay extends MappedIntColName(this, "acctstartdelay",

    "Start Delay")

  object stopDelay extends MappedIntColName(this, "acctstopdelay",

    "Stop Delay")

  object corrId extends MappedPoliteStringColName(this, 64,

    "3GPP2_Correlation_Id", "3GPP2 Correlation Id")

  object statusType extends MappedPoliteStringColName(this, 15,

    "Acct_Status_Type", "Status Type")

  object ts extends MappedDateTime(this) {

    override def dbColumnName = "Event_Timestamp"

    override def displayName = "Timestamp"

  }

  object releaseInd extends MappedIntColName(this, "3GPP2_Release_Indicator",

    "3GPP2 Release Indicator")

  object activeTime extends MappedIntColName(this, "3GPP2_Active_Time",

    "3GPP2 Active Time")

}

case class CdrSession(sid: String, start: Date, end: Date, inBytes: Long,

  outBytes: Long, cellId: String) {

  def cell: Box[Cell] = Cell.findByKey(cellId)

}

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