/**
* Sets a new time
*
* @param int|string
* @return this
*/
public function setTime($time)
{
Eden_Timezone_Error::i()->argument(1, 'int', 'string');
if (is_string($time)) {
$time = strtotime($time);
}
$this->_time = $time - $this->_offset;
return $this;
}
if(!class_exists('Eden_Timezone')){class Eden_Timezone extends Eden_Class{const GMT='GMT';const UTC='UTC';public static function i(){return self::_getMultiple(__CLASS__);}public function __construct($zone,$time=NULL){Eden_Timezone_Error::i()->argument(1,'string')->argument(1,'location','utc','abbr')->argument(2,'int','string','null');if(is_null($time)){$time=time();}$this->_offset=$this->_getOffset($zone);$this->setTime($time);}public function convertTo($zone,$format=NULL){Eden_Timezone_Error::i()->argument(1,'string')->argument(1,'location','utc','abbr')->argument(2,'string','null');$time=$this->_time + $this->_getOffset($zone);if(!is_null($format)){return date($format,$time);}return $time;}public function getGMT($prefix=self::GMT){Eden_Timezone_Error::i()->argument(1,'string');list($hour,$minute,$sign)=$this->_getUtcParts($this->_offset);return $prefix.$sign.$hour.$minute;}public function getGMTDates($format,$interval=30,$prefix=self::GMT){Eden_Timezone_Error::i()->argument(1,'string')->argument(2,'int')->argument(3,'string','null');$offsets=$this->getOffsetDates($format,$interval);$dates=array();foreach($offsets as $offset=>$date){list($hour,$minute,$sign)=$this->_getUtcParts($offset);$gmt=$prefix.$sign.$hour.$minute;$dates[$gmt]=$date;}return $dates;}public function getOffset(){return $this->_offset;}public function getOffsetDates($format,$interval=30){Eden_Timezone_Error::i()->argument(1,'string')->argument(2,'int');$dates=array();$interval *=60;for($i=-12*3600;$i <=(12*3600);$i+=$interval){$time=$this->_time + $i;$dates[$i]=date($format,$time);}return $dates;}public function getTime($format=NULL){Eden_Timezone_Error::i()->argument(1,'string','null');$time=$this->_time + $this->_offset;if(!is_null($format)){return date($format,$time);}return $time;}public function getUTC($prefix=self::UTC){Eden_Timezone_Error::i()->argument(1,'string');list($hour,$minute,$sign)=$this->_getUtcParts($this->_offset);return $prefix.$sign.$hour.':'.$minute;}public function getUTCDates($format,$interval=30,$prefix=self::UTC){Eden_Timezone_Error::i()->argument(1,'string')->argument(2,'int')->argument(3,'string','null');$offsets=$this->getOffsetDates($format,$interval);$dates=array();foreach($offsets as $offset=>$date){list($hour,$minute,$sign)=$this->_getUtcParts($offset);$utc=$prefix.$sign.$hour.':'.$minute;$dates[$utc]=$date;}return $dates;}public function setTime($time){Eden_Timezone_Error::i()->argument(1,'int','string');if(is_string($time)){$time=strtotime($time);}$this->_time=$time - $this->_offset;return $this;}public function validation(){return Eden_Timezone_Validation::i();}protected function _getOffset($zone){if($this->validation()->isLocation($zone)){return $this->_getOffsetFromLocation($zone);}if($this->validation()->isUtc($zone)){return $this->_getOffsetFromUtc($zone);}if($this->validation()->isAbbr($zone)){return $this->_getOffsetFromAbbr($zone);}return 0;}protected function _getOffsetFromAbbr($zone){$zone=timezone_name_from_abbr(strtolower($zone));return $this->_getOffsetFromLocation($zone);}protected function _getOffsetFromLocation($zone){$zone=new DateTimeZone($zone);$gmt=new DateTimeZone(self::GMT);return $zone->getOffset(new DateTime('now',$gmt));}protected function _getOffsetFromUtc($zone){$zone=str_replace(array('GMT','UTC'),'',$zone);$zone=str_replace(':','',$zone);$add=$zone[0]=='+';$zone=substr($zone,1);switch(strlen($zone)){case 1: case 2: return $zone * 3600 * ($add?1:-1);case 3: $hour=substr($zone,0,1) * 3600;$minute=substr($zone,1) * 60;return ($hour+$minute) * ($add?1:-1);case 4: $hour=substr($zone,0,2) * 3600;$minute=substr($zone,2) * 60;return ($hour+$minute) * ($add?1:-1);}return 0;}private function _getUtcParts($offset){$minute='0'.(floor(abs($offset/60)) % 60);return array( floor(abs($offset/3600)),substr($minute,strlen($minute)-2),$offset < 0 ? '-':'+');}}}
