/**
* Validates that this window is after the previous one.
*
* @param TZWindow $previous the previous window, not null
* @throws \LogicException if the window order is invalid
*/
function validateWindowOrder(TZWindow $previous)
{
if ($this->windowEnd->isBefore($previous->windowEnd)) {
throw new \LogicException("Windows must be added in date-time order: " . $this->windowEnd . " < " . $previous->windowEnd);
}
}
/**
* Finds the offset info for a local date-time and transition.
*
* @param LocalDateTime $dt the date-time, not null
* @param ZoneOffsetTransition $trans the transition, not null
* @return ZoneOffsetTransition|ZoneOffset the offset info, not null
*/
private function findOffsetInfo(LocalDateTime $dt, ZoneOffsetTransition $trans)
{
$localTransition = $trans->getDateTimeBefore();
if ($trans->isGap()) {
if ($dt->isBefore($localTransition)) {
return $trans->getOffsetBefore();
}
if ($dt->isBefore($trans->getDateTimeAfter())) {
return $trans;
} else {
return $trans->getOffsetAfter();
}
} else {
if ($dt->isBefore($localTransition) == false) {
return $trans->getOffsetAfter();
}
if ($dt->isBefore($trans->getDateTimeAfter())) {
return $trans->getOffsetBefore();
} else {
return $trans;
}
}
}
