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<?php
namespace bdrem;
class Event
{
/**
* Title of the event or name of the person that has the event
*/
public $title;
/**
* Type of the event, e.g. "birthday"
*/
public $type;
/**
* Date of the event.
* ???? as year is allowed
*
* @var string YYYY-MM-DD
*/
public $date;
/**
* Reference date against which $age and $days are calculated
* (often today)
*
* @var string YYYY-MM-DD
*/
public $refDate;
/**
* "Localized" $date used for calculations against $refDate.
* Month and day are the same as in $date, year is near $refDate's year.
*
* @var string YYYY-MM-DD
*/
public $localDate;
/**
* Which repetition this is
*
* @var integer
*/
public $age;
/**
* Number of days until the event (positive) or since the event (negative)
*
* @var integer
*/
public $days;
public function __construct($title = null, $type = null, $date = null)
{
$this->title = $title;
$this->type = $type;
$this->date = $date;
}
/**
* Checks if the event's date is within the given date.
* Also calculates the age and days since the event.
*
* @return boolean True if the event's date is within the given range
*/
public function isWithin($strDate, $nDaysPrev, $nDaysNext)
{
$this->refDate = $strDate;
list($rYear, $rMonth, $rDay) = explode('-', $strDate);
list($eYear, $eMonth, $eDay) = explode('-', $this->date);
if ($rMonth == $eMonth && $rDay == $eDay) {
$this->localDate = $strDate;
$this->days = 0;
if ($eYear == '????') {
$this->age = null;
} else {
$this->age = $rYear - $eYear;
}
return true;
}
$yearOffset = 0;
if ($eMonth < 3 && $rMonth > 10) {
$yearOffset = 1;
} else if ($eMonth > 10 && $rMonth < 3) {
$yearOffset = -1;
}
$this->localDate = ($rYear + $yearOffset) . '-' . $eMonth . '-' . $eDay;
$rD = new \DateTime($strDate);
$eD = new \DateTime($this->localDate);
$nDiff = (int) $rD->diff($eD)->format('%r%a');
$this->days = $nDiff;
if ($eYear == '????') {
$this->age = null;
} else {
$this->age = $rYear - $eYear + $yearOffset;
}
if ($nDiff > 0) {
return $nDiff <= $nDaysNext;
} else {
return -$nDiff <= $nDaysPrev;
}
return false;
}
/**
* @return integer x < 0: e1 is less than e2
* x > 0: e1 is larger than e2
*/
public static function compare(Event $e1, Event $e2)
{
list($e1Year, $e1Month, $e1Day) = explode('-', $e1->date);
list($e2Year, $e2Month, $e2Day) = explode('-', $e2->date);
if ($e1Month < 3 && $e2Month > 10) {
return 1;
} else if ($e1Month > 10 && $e2Month < 3) {
return -1;
} else if ($e1Month != $e2Month) {
return $e1Month - $e2Month;
} else if ($e1Day != $e2Day) {
return $e1Day - $e2Day;
}
return strcmp($e1->title, $e2->title);
}
}
?>
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