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|
<?php
function program()
{
if(!has('SCHEDULE'))
return;
if(has('SCHEDULE.CACHE'))
{
$program = apc_fetch('SCHEDULE.CACHE');
if($program) return $program;
}
$program = array();
$opts = array(
'http' => array(
'timeout' => 2,
'user_agent' => 'C3Voc Universal Streaming-Website Backend @ '.$_SERVER['HTTP_HOST'],
)
);
$context = stream_context_create($opts);
$schedule = file_get_contents(get('SCHEDULE.URL'), false, $context);
// failed, give up
if(!$schedule)
return array();
$schedule = simplexml_load_string($schedule);
// re-calculate day-ends
// some schedules have long gaps before the first talk or talks that expand beyond the dayend
// (fiffkon, i look at you)
// so to be on the safer side we calculate our own daystart/end here
foreach($schedule->day as $day)
{
$daystart = PHP_INT_MAX;
$dayend = 0;
foreach($day->room as $room)
{
foreach($room->event as $event)
{
$start = strtotime((string)$event->date);
$duration = strtoduration((string)$event->duration);
$end = $start + $duration;
$daystart = min($daystart, $start);
$dayend = max($dayend, $end);
}
}
$day['start'] = $daystart;
$day['end'] = $dayend;
}
$dayidx = 0;
foreach($schedule->day as $day)
{
$dayidx++;
$daystart = (int)$day['start'];
$dayend = (int)$day['end'];
$roomidx = 0;
foreach($day->room as $room)
{
$roomidx++;
$lastend = false;
$name = (string)$room['name'];
if(isset($GLOBALS['CONFIG']['FAHRPLAN_ROOM_MAPPING'][$name]))
$name = $GLOBALS['CONFIG']['FAHRPLAN_ROOM_MAPPING'][$name];
foreach($room->event as $event)
{
$start = strtotime((string)$event->date);
$duration = strtoduration((string)$event->duration);
$end = $start + $duration;
if($lastend && $lastend < $start)
{
// synthesize pause event
$pauseduration = $start - $lastend;
$program[$name][] = array(
'special' => 'pause',
'title' => round($pauseduration / 60).' minutes pause',
'fstart' => date('c', $lastend),
'fend' => date('c', $start),
'start' => $lastend,
'end' => $start,
'duration' => $pauseduration,
);
}
else if(!$lastend && $daystart < $start)
{
$program[$name][] = array(
'special' => 'gap',
'fstart' => date('c', $daystart),
'fend' => date('c', $start),
'start' => $daystart,
'end' => $start,
'duration' => $start - $daystart,
);
}
$personnames = array();
foreach($event->persons->person as $person)
$personnames[] = (string)$person;
$program[$name][] = array(
'title' => (string)$event->title,
'speaker' => implode(', ', $personnames),
'fstart' => date('c', $start),
'fend' => date('c', $end),
'start' => $start,
'end' => $end,
'duration' => $duration,
);
$lastend = $end;
}
// synthesize daychange event
if(!$lastend) $lastend = $daystart;
if($lastend < $dayend)
{
$program[$name][] = array(
'special' => 'gap',
'fstart' => date('c', $lastend),
'fend' => date('c', $dayend),
'start' => $lastend,
'end' => $dayend,
'duration' => $dayend - $lastend,
);
}
if($dayidx < count($schedule->day))
{
$program[$name][] = array(
'special' => 'daychange',
'title' => 'Daychange from Day '.$dayidx.' to '.($dayidx+1),
'start' => $dayend,
'end' => (int)$schedule->day[$dayidx]['start'],
'duration' => 60*60,
);
}
}
}
if(has('SCHEDULE.CACHE'))
{
apc_store(
'SCHEDULE.CACHE',
$program,
get('SCHEDULE.CACHE')
);
}
return $program;
}
|
