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<?php
namespace Apptus\ESales\Connector\Time;
class CalendarDate extends IsoDate {
const ABSOLUTE_PATTERN = '/^([0-9][0-9][0-9][0-9])((-?)([0-1][0-9])((-?)([0-3][0-9]))?)?$/';
const RELATIVE_DAY_PATTERN = '/^((([0-9][0-9][0-9][0-9])(-?))?([0-1][0-9])(-?))?([0-3][0-9])$/';
const RELATIVE_MONTH_PATTERN = '/^(([0-9][0-9][0-9][0-9])(-?))?([0-1][0-9])$/';
const RELATIVE_YEAR_PATTERN = '/^([0-9][0-9][0-9][0-9])$/';
public static function tryParseAbsolute($input) {
$matches = array();
$m = preg_match(self::ABSOLUTE_PATTERN, $input, $matches);
if ($m === 1) {
$year = (int) $matches[1];
$month = empty($matches[4]) ? null : Month::validate((int) $matches[4]);
$day = empty($matches[7]) ? null : (int) $matches[7];
return new CalendarDate($year, $month, $day);
}
return null;
}
public static function tryParseRelative($input, CalendarDate $start) {
if ($start->day() !== null) {
$matches = array ();
$m = preg_match(self::RELATIVE_DAY_PATTERN, $input, $matches);
if ($m === 1) {
$year = empty($matches[3]) ? $start->year() : (int) $matches[3];
$month = empty($matches[5]) ? $start->month() : Month::validate((int) $matches[5]);
$day = (int) $matches[7];
return new CalendarDate($year, $month, $day);
}
} elseif ($start->month() !== null) {
$matches = array ();
$m = preg_match(self::RELATIVE_MONTH_PATTERN, $input, $matches);
if ($m === 1) {
$year = empty($matches[2]) ? $start->year() : (int) $matches[2];
$month = Month::validate((int) $matches[4]);
return new CalendarDate($year, $month, null);
}
} else {
$matches = array ();
$m = preg_match(self::RELATIVE_YEAR_PATTERN, $input, $matches);
if ($m === 1) {
$year = (int) $matches[1];
return new CalendarDate($year, null, null);
}
}
return null;
}
private $year;
private $month;
private $day;
public function __construct($year, $month, $day) {
if ($year === null) {
throw new \InvalidArgumentException('Year may not be null.');
}
if ($month !== null) {
$month = Month::validate($month);
}
if ($day !== null && $month === null) {
throw new \InvalidArgumentException('Month may not be null when day is non-null.');
}
if ($day !== null && ($day < 1 || $day > 31)) {
throw new \InvalidArgumentException('Day must be in the range 1-31.');
}
$this->year = $year;
$this->month = $month;
$this->day = $day;
}
public function year() {
return $this->year;
}
public function month() {
return $this->month;
}
public function day() {
return $this->day;
}
public function hasDayPrecision() {
return $this->day !== null;
}
public function __toString() {
$result = sprintf('%04d', $this->year);
if ($this->month !== null) {
$result .= sprintf('-%02d', $this->month);
if ($this->day !== null) {
$result .= sprintf('-%02d', $this->day);
}
}
return $result;
}
public function toTimePoint(Time $t = null, \DateTimeZone $tz) {
if ($t === null) {
$t = new Time(0, null, null, null);
}
$year = $this->year;
$month = $this->month !== null ? $this->month : Month::JANUARY;
$day = $this->day !== null ? $this->day : 1;
$hour = $t->hour();
$minute = $t->minute() !== null ? $t->minute() : 0;
$second = $t->second() !== null ? $t->second() : 0;
if ($t->offset() !== null) {
$tz = new \DateTimeZone('UTC');
}
$dt = new \DateTime(null, $tz);
$dt->setDate($year, $month, $day);
$dt->setTime($hour, $minute, $second);
$offset = $t->offset();
if ($offset !== null) {
if ($offset < 0) {
$dt->add(new \DateInterval('PT' . -$offset . 'M'));
} else {
$dt->sub(new \DateInterval('PT' . $offset . 'M'));
}
}
return TimePoint::fromDateTime($dt);
}
public function equals($o) {
if ($this === $o) return true;
if ($o === null || gettype($o) !== 'object' || get_class($this) !== get_class($o)) return false;
$that = $o;
if ($this->day !== null ? ($this->day !== $that->day) : ($that->day !== null)) return false;
if ($this->month !== null ? ($this->month !== $that->month) : ($that->month !== null)) return false;
if ($this->year !== null ? ($this->year !== $that->year) : ($that->year !== null)) return false;
return true;
}
}