<?php

require('../stats-fe.php');

require('../graphs.php');

require('../timezone.php');

$first_channel = array_keys($stats_data['messages']);

$first_channel = $first_channel[0];

$channel = ( isset($_REQUEST['channel']) && isset($stats_data['messages'][$_REQUEST['channel']]) ) ? $_REQUEST['channel'] : $first_channel;

// generate the data

// we're doing this by absolute hours, not by strictly "24 hours ago", e.g. on-the-hour stats

$this_hour = gmmktime(gmdate('H'), 0, 0);

$graphdata = array();

for ( $i = 23; $i >= 0; $i-- )

{

  $basetime = $this_hour - ( $i * 3600 );

  $ts = date('H:i', $basetime);

  $basetime += 3600;

  $graphdata[$ts] = stats_message_count($channel, 60, $basetime);

}

$max = max($graphdata);

// Determine axis interval

$interval = 2;

if ( $max > 20 )

  $interval = 4;

if ( $max > 25 )

  $interval = 5;

if ( $max > 50 )

  $interval = 10;

if ( $max > 200 )

  $interval = 40;

if ( $max > 500 )

  $interval = 80;

if ( $max > 1000 )

  $interval = 100;

if ( $max > 2000 )

  $interval = 200;

if ( $max > 5000 )

  $interval = 1000;

if ( $max > 15000 )

  $interval = 1500;

if ( $max > 30000 )

  $interval = round($max / 10);

$g = new GraphMaker(); // _Compat();

$g->SetGraphPadding(20, 30, 20, 15);

$g->SetGraphAreaHeight(200);

$g->SetBarPadding(10);

$g->SetBarData($graphdata);

$g->SetGraphBackgroundTransparent(240, 250, 255, 0);

$g->SetGraphTransparency(25);

$g->SetAxisStep($interval);

$g->SetGraphTitle($channel . ' message count - last 24 hours');

$g->DrawGraph();