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<?php
namespace Apptus\ESales\Connector\Time;
class Time {
const ABSOLUTE_PATTERN = '/^([0-2][0-9])((:?)([0-6][0-9])((:?)([0-6][0-9]))?)?(Z|(([\\+-])([0-1][0-9])((:?)([0-6][0-9]))?))?$/';
const RELATIVE_SECOND_PATTERN = '/^((([0-2][0-9])(:?))?([0-6][0-9])(:?))([0-6][0-9])(Z|(([\\+-])([0-1][0-9])((:?)([0-6][0-9]))?))?$/';
const RELATIVE_MINUTE_PATTERN = '/^(([0-2][0-9])(:?))?([0-6][0-9])(Z|(([\\+-])([0-1][0-9])((:?)([0-6][0-9]))?))?$/';
const RELATIVE_HOUR_PATTERN = '/^([0-2][0-9])(Z|(([\\+-])([0-1][0-9])((:?)([0-6][0-9]))?))?$/';
public static function parse($input) {
if ($input === null) {
throw new \InvalidArgumentException('Argument input is null.');
}
if ($input === null || $input == '') {
return null;
}
$matches = array ();
$m = preg_match(self::ABSOLUTE_PATTERN, $input, $matches);
if ($m === 1) {
$hour = (int) $matches[1];
$minute = empty($matches[4]) ? null : (int) $matches[4];
$second = empty($matches[7]) ? null : (int) $matches[7];
$offset = self::parseOffset($matches, 8, null);
return new Time($hour, $minute, $second, $offset);
}
throw new \InvalidArgumentException('Illegal time format. ISO 8601 format required.');
}
public static function parseInContext($input, Time $start) {
if ($start->second() !== null) {
$matches = array ();
$m = preg_match(self::RELATIVE_SECOND_PATTERN, $input, $matches);
if ($m === 1) {
$hour = empty($matches[3]) ? $start->hour() : (int) $matches[3];
$minute = empty($matches[5]) ? $start->minute() : (int) $matches[5];
$second = (int) $matches[7];
$offset = self::parseOffset($matches, 8, $start->offset());
return new Time($hour, $minute, $second, $offset);
}
} elseif ($start->minute() !== null) {
$matches = array ();
$m = preg_match(self::RELATIVE_MINUTE_PATTERN, $input, $matches);
if ($m === 1) {
$hour = empty($matches[2]) ? $start->hour() : (int) $matches[2];
$minute = (int) $matches[4];
$offset = self::parseOffset($matches, 5, $start->offset());
return new Time($hour, $minute, null, $offset);
}
} else {
$matches = array ();
$m = preg_match(self::RELATIVE_HOUR_PATTERN, $input, $matches);
if ($m === 1) {
$hour = (int) $matches[1];
$offset = self::parseOffset($matches, 2, $start->offset());
return new Time($hour, null, null, $offset);
}
}
throw new \InvalidArgumentException('Illegal time format. ISO 8601 format required.');
}
private static function parseOffset(array $matches, $index, $defaultValue) {
if (empty($matches[$index])) {
return $defaultValue;
} elseif ($matches[$index] === 'Z') {
return 0;
} else {
$sign = $matches[$index+2];
$hour = $matches[$index+3];
$minute = $matches[$index+6];
$offsetInMinutes = 60 * (int) $hour;
$offsetInMinutes += $minute == null ? 0 : (int) $minute;
if ($sign === '-') {
$offsetInMinutes = -$offsetInMinutes;
}
return $offsetInMinutes;
}
}
private $hour;
private $minute;
private $second;
private $offset;
public function __construct($hour, $minute, $second, $offset) {
if ($hour === null) {
throw new \InvalidArgumentException('Hour may not be null.');
}
$this->hour = $hour;
$this->minute = $minute;
$this->second = $second;
$this->offset = $offset;
}
public function hour() {
return $this->hour;
}
public function minute() {
return $this->minute;
}
public function second() {
return $this->second;
}
public function offset() {
return $this->offset;
}
public function __toString() {
$result = sprintf('%02d', $this->hour);
if ($this->minute !== null) {
$result .= sprintf(':%02d', $this->minute);
if ($this->second !== null) {
$result .= sprintf(':%02d', $this->second);
}
}
if ($this->offset !== null) {
if ($this->offset === 0) {
$result .= 'Z';
} elseif ($this->offset > 0) {
$result .= sprintf('+%02d:%02d', (int) $this->offset / 60, $this->offset % 60);
} else {
$result .= sprintf('-%02d:%02d', (int) -$this->offset / 60, -$this->offset % 60);
}
}
return $result;
}
public function equals($o) {
if ($this === $o) return true;
if ($o === null || gettype($o) !== 'object' || get_class($this) !== get_class($o)) return false;
$time = $o;
if ($this->hour !== null ? $this->hour !== $time->hour : $time->hour !== null) return false;
if ($this->minute !== null ? $this->minute !== $time->minute : $time->minute !== null) return false;
if ($this->offset !== null ? $this->offset !== $time->offset : $time->offset !== null) return false;
if ($this->second !== null ? $this->second !== $time->second : $time->second !== null) return false;
return true;
}
}