TimeRange.php
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TimeRange.php
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	<?php

	namespace Keruald\OmniTools\DateTime;

	class TimeRange {

	private Time $start;
	private Time $end;

	///
	/// Constructors
	///

	public function __construct (Time $start, Time $end) {
	$this->start = $start;
	$this->end = $end;

	$this->normalize();
	}

	public static function fromDuration (Time $start,
	int $hoursToAdd = 0,
	int $minutesToAdd = 0) : self {
	$end = clone $start;
	$end
	->addHours($hoursToAdd)
	->addMinutes($minutesToAdd);

	return new self($start, $end);
	}

	public static function parse (string $expression) : self {
	$range = explode("-", $expression);

	if (count($range) !== 2) {
	throw new \InvalidArgumentException;
	}

	return new self(Time::Parse($range[0]), Time::Parse($range[1]));
	}

	///
	/// Getters and setters
	///

	public function getStart () : Time {
	return $this->start;
	}

	public function setStart (Time $start) : self {
	$this->start = $start;

	return $this->normalize();
	}

	public function getEnd () : Time {
	return $this->end;
	}

	public function setEnd (Time $end) : self {
	$this->end = $end;

	return $this->normalize();
	}

	///
	/// Helper functions
	///

	public function normalize () : self {
	if ($this->start->compareTo($this->end) > 0) {
	$swap = $this->end;
	$this->end = $this->start;
	$this->start = $swap;
	}

	return $this;
	}

	public function overlapsWith (TimeRange $other) : bool {
	return $this->getEnd()->compareTo($other->getStart()) == 1
	&&
	$other->getEnd()->compareTo($this->getStart()) == 1;
	}

	public function countMinutes () : int {
	return $this->end->toMinutes() - $this->start->toMinutes();
	}

	}