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New TZ and Cisco Code Algorithm

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Simplify getting cisco_code and DST settings
This commit is contained in:
steve-lad 2021-06-13 11:06:26 +02:00
parent 8303ec28a4
commit bbd811e578
1 changed files with 32 additions and 63 deletions
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59
sccpManClasses/extconfigs.class.php
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@ -49,29 +49,11 @@ class extconfigs
$result = array();
if (empty($index)) {
return array('offset' => '00', 'daylight' => '', 'cisco_code' => 'Greenwich');
}
if (array_key_exists($index, $this->cisco_timezone)) {
return $this->get_cisco_time_zone($index);
} else {
$timezone_abbreviations = \DateTimeZone::listAbbreviations();
$tz_tmp = array();
foreach ($timezone_abbreviations as $key=>$subArray) {
$tf_idt = array_search($index, array_column($subArray, 'timezone_id'));
if (!empty($tf_idt)) {
$tz_tmp[$key] = $subArray[$tf_idt];
}
return array('offset' => '00', 'daylight' => '', 'cisco_code' => 'Greenwich Standard Time');
}
if (empty($tz_tmp)) {
return array('offset' => '00', 'daylight' => '', 'cisco_code' => 'Greenwich');
}
// as php DateTimeZone::listAbbreviations() has multiple historic Values
// Need to find one that matches this machine offset.
//Now find out if DST is used here. Test if DST setting is different in 6 months
//See if DST is used in this TZ. Test if DST setting is different at
//various future intervals. If dst changes, this TZ uses dst
$usesDaylight = false;
$haveDstNow = date('I');
$futureDateArray = array(2,4,6,8);
@ -82,35 +64,25 @@ class extconfigs
break;
};
}
$thisTzOffset = (new \DateTime(null, new \DateTimeZone($index)))->getOffset();
if (count($tz_tmp)==1) {
$time_set = $tz_tmp[0];
} else {
$tmp_dt = new \DateTime(null, new \DateTimeZone($index));
$tmp_ofset = $tmp_dt->getOffset();
foreach ($tz_tmp as $subArray) {
if ($subArray['offset'] == $tmp_ofset) {
$time_set = $subArray;
break;
}
}
}
// Now look for a match in cisco_code based on offset and DST
// First correct offset if we have DST now
$tmp_ofset = $time_set['offset'] / 60;
// Now look for a match in cisco_tz_array based on offset and DST
// First correct offset if we have DST now as cisco offsets are
// based on non dst offsets
$tmp_ofset = $thisTzOffset / 60;
if ($haveDstNow) {
$tmp_ofset = $tmp_ofset - 60;
}
foreach ($this->cisco_timezone as $key => $value) {
if (($value['offset'] == $tmp_ofset) and ( $value['daylight'] == $usesDaylight )) {
dbug('cisco_code found', $key);
return $this->get_cisco_time_zone($key);
// This code may not be the one typically used, but it has the correct values.
$cisco_code = $key . ' Standard' . (($usesDaylight) ? '/Daylight' : '') . ' Time';
return array('offset' => $tmp_ofset, 'daylight' => ($usesDaylight) ? 'Daylight' : '', 'cisco_code' => $cisco_code);
break;
}
}
return array('offset' => '00', 'daylight' => '', 'cisco_code' => 'Greenwich');
}
return array('offset' => '00', 'daylight' => '', 'cisco_code' => 'Greenwich Standard Time');
break;
default:
return array('noId');
@ -130,10 +102,7 @@ class extconfigs
private function get_cisco_time_zone($tzc)
{
$tzdata = $this->cisco_timezone[$tzc];
$cisco_code = $tzc . ' Standard' . ((empty($tzdata['daylight'])) ? '' : '/' . $tzdata['daylight']) . ' Time';
if (isset($tzdata['cisco_code'])) {
$cisco_code = (empty($tzdata['cisco_code'])) ? $cisco_code : $tzdata['cisco_code'];
}
$cisco_code = $tzc . ' Standard' . (($tzdata['daylight']) ? '/Daylight' : '') . ' Time';
return array('offset' => $tzdata['offset'], 'daylight' => $tzdata['daylight'], 'cisco_code' => $cisco_code);
}