<?php

function getDates($dayofmonth)
{
  $dayofmonth = zeropad($dayofmonth);
  list($year, $month) = split('-', date('Y-m'));

  if (date('d') > $dayofmonth)
  {
    $newmonth = $month + 1;
    if ($newmonth == 13)
    {
      $newmonth = 1;
      $newyear = year + 1;
    } else {
      $newyear = $year;
    }

    $date_from = $year . $month . $dayofmonth;
    $date_to   = $newyear . $newmonth . $dayofmonth;
    $dt_q = mysql_query("SELECT DATE_ADD(DATE_SUB('$date_from', INTERVAL 1 DAY), INTERVAL 1 MONTH);");
    $date_to = mysql_result($dt_q,0);
    $date_to = str_replace("-","",$date_to);
  }
  else
  {
    $newmonth = $month - 1;
    if ($newmonth == 0)
    {
      $newmonth = 12;
      $newyear = $year - 1;
    } else {
      $newyear = $year;
    }

    $date_from = $newyear . $newmonth . $dayofmonth;
    $date_to   = $year . $month . $dayofmonth;
    $dt_q = mysql_query("SELECT DATE_ADD(DATE_SUB('$date_to', INTERVAL 1 MONTH), INTERVAL 1 DAY);");
    $date_from = mysql_result($dt_q,0);
    $date_from = str_replace("-","",$date_from);
  }

  $lq_from = mysql_query("SELECT DATE_SUB('$date_from', INTERVAL 1 MONTH);");
  $last_from = mysql_result($lq_from,0);
  $last_from = str_replace("-","",$last_from);

  $lq_to   = mysql_query("SELECT DATE_SUB('$date_to', INTERVAL 1 MONTH);");
  $last_to = mysql_result($lq_to,0);
  $last_to = str_replace("-","",$last_to);

  $return['0'] = $date_from . "000000";
  $return['1'] = $date_to . "235959";
  $return['2'] = $last_from . "000000";
  $return['3'] = $last_to . "235959";

  return($return);
}


function getValue($host, $community, $snmpver, $port, $id, $inout)
{
  global $config;

  $oid  = "IF-MIB::ifHC" . $inout . "Octets." . $id;
  $value = shell_exec($config['snmpget'] ." -m IF-MIB -c $community -$snmpver -O qv $host:$port $oid");

  if (!is_numeric($value))
  {
    $oid  = "IF-MIB::if" . $inout . "Octets." . $id;
    $value = shell_exec($config['snmpget'] ." -m IF-MIB -c $community -$snmpver -O qv $host:$port $oid");
  }

  return $value;
}

function getLastPortCounter($port_id,$inout)
{
  $query = mysql_query("SELECT count(counter) from port_" . $inout . "_measurements WHERE port_id=" . $port_id);
  $rows = mysql_result($query, 0);

  if ($rows > 0)
  {
    $query = mysql_query("SELECT counter,delta FROM port_" . $inout . "_measurements WHERE port_id=$port_id ORDER BY timestamp DESC");
    $row = mysql_fetch_row($query);
    $return[counter] = $row[0];
    $return[delta] = $row[1];
    $return[state] = "ok";
  } else {
    $return[state] = "failed";
  }

  return($return);
}

function getLastMeasurement($bill_id)
{
  $query = mysql_query("SELECT count(delta) from bill_data WHERE bill_id=" . $bill_id);
  $rows  = mysql_result($query, 0);

  if ($rows > 0)
  {
    $query = mysql_query("SELECT timestamp,delta,in_delta,out_delta FROM bill_data WHERE bill_id=$bill_id ORDER BY timestamp DESC");
    $row = mysql_fetch_row($query);
    $return[delta] = $row[1];
    $return[delta] = $row[2];
    $return[delta] = $row[3];
    $return[timestamp] = $row[0];
    $return[state] = "ok";
  } else {
    $return[state] = "failed";
  }

  return($return);
}

function get95thin($bill_id,$datefrom,$dateto)
{
  $mq_text = "SELECT count(delta) FROM bill_data WHERE bill_id = $bill_id";
  $mq_text .= " AND timestamp > $datefrom AND timestamp <= $dateto";
  $m_query = mysql_query($mq_text);
  $measurements = mysql_result($m_query,0);
  $measurement_95th = round($measurements /100 * 95) - 1;

  $q_95_text = "SELECT in_delta FROM bill_data  WHERE bill_id = $bill_id";
  $q_95_text .= " AND timestamp > $datefrom AND timestamp <= $dateto ORDER BY in_delta ASC";
  $q_95th = mysql_query($q_95_text);
  $m_95th = mysql_result($q_95th,$measurement_95th);

  return(round($m_95th / 1000 / 300 * 8, 2));
}

function get95thout($bill_id,$datefrom,$dateto)
{
  $mq_text = "SELECT count(delta) FROM bill_data WHERE bill_id = $bill_id";
  $mq_text .= " AND timestamp > $datefrom AND timestamp <= $dateto";
  $m_query = mysql_query($mq_text);
  $measurements = mysql_result($m_query,0);
  $measurement_95th = round($measurements /100 * 95) - 1;

  $q_95_text = "SELECT out_delta FROM bill_data  WHERE bill_id = $bill_id";
  $q_95_text .= " AND timestamp > $datefrom AND timestamp <= $dateto ORDER BY out_delta ASC";
  $q_95th = mysql_query($q_95_text);
  $m_95th = mysql_result($q_95th,$measurement_95th);

  return(round($m_95th / 1000 / 300 * 8, 2));
}

function getRates($bill_id,$datefrom,$dateto)
{
  $mq_text = "SELECT count(delta) FROM bill_data ";
  $mq_text = $mq_text . " WHERE bill_id = $bill_id";
  $mq_text = $mq_text . " AND timestamp > $datefrom AND timestamp <= $dateto";
  $m_query = mysql_query($mq_text);
  $measurements = mysql_result($m_query,0);
  $measurement_95th = round($measurements /100 * 95) - 1;

  $q_95_text = "SELECT delta FROM bill_data  WHERE bill_id = $bill_id";
  $q_95_text = $q_95_text . " AND timestamp > $datefrom AND timestamp <= $dateto ORDER BY delta ASC";
  $q_95th = mysql_query($q_95_text);
  $m_95th = mysql_result($q_95th,$measurement_95th);

  $mt_q = mysql_query("SELECT SUM(delta) FROM bill_data WHERE bill_id = '$bill_id' AND timestamp > '$datefrom' AND timestamp <= '$dateto'");
  $mtot = mysql_result($mt_q,0);
  $data['rate_95th_in'] = get95thIn($bill_id,$datefrom,$dateto);
  $data['rate_95th_out'] = get95thOut($bill_id,$datefrom,$dateto);

  if ($data['rate_95th_out'] > $data['rate_95th_in'])
  {
    $data['rate_95th'] = $data['rate_95th_out'];
    $data['dir_95th'] = 'out';
  } else {
    $data['rate_95th'] = $data['rate_95th_in'];
    $data['dir_95th'] = 'in';
  }

  $data['total_data'] = round($mtot / 1000 / 1000, 2);
  $data['rate_average'] = round($mtot / $measurements / 1000 / 300 * 8, 2);

  return($data);
}

function getTotal($bill_id,$datefrom,$dateto)
{
  $mt_q = mysql_query("SELECT sum(delta) FROM bill_data  WHERE bill_id = $bill_id AND timestamp > $datefrom AND timestamp <= $dateto");
  $mtot = mysql_result($mt_q,0);

  return($mtot);
}

$dayofmonth     = date("j"); //FIXME is this used anywhere?

?>