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TimeSpan.php
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<?php
namespaceFinanCalc\Utils\Time {
useDateInterval;
useDateTime;
useException;
useFinanCalc\Constants\ErrorMessages;
useFinanCalc\Utils\Helpers;
useFinanCalc\Utils\MathFuncs;
useInvalidArgumentException;
/**
* Class TimeSpan
* @package FinanCalc\Utils\Time
*/
class TimeSpan
{
/** @var DateTime */
private$startDate;
/** @var DateTime */
private$endDate;
/** @var DateInterval */
private$dateInterval;
/**
* PRIVATE constructor
*/
privatefunction__construct()
{
}
/**
* @param integer $years
* @param integer $months
* @param integer $days
* @return TimeSpan
*/
publicstaticfunctionasDuration(
$years,
$months =0,
$days =0
) {
foreach (func_get_args()as$arg) {
Helpers::checkIfNotNegativeNumberOrThrowAnException($arg);
}
$newThis =newTimeSpan();
$newThis->newDateIntervalAbsolute($years,$months,$days);
return$newThis;
}
/**
* @param DateTime $startDate
* @param $years
* @param $months
* @param int $days
* @return TimeSpan
*/
publicstaticfunctionasDurationWithStartDate(
DateTime$startDate,
$years,
$months =0,
$days =0
) {
$newThis = TimeSpan::asDuration($years,$months,$days);
$newThis->setStartDate($startDate);
return$newThis;
}
/**
* @param DateTime $startDate
* @param DateTime $endDate
* @return TimeSpan
*/
publicstaticfunctionasInterval(
DateTime$startDate,
DateTime$endDate
) {
$newThis =newTimeSpan();
$newThis->checkStartEndDateAndSetInterval($startDate,$endDate);
$newThis->setStartDate($startDate);
$newThis->setEndDate($endDate);
return$newThis;
}
/**
* @param DateTime $startDate
*/
publicfunctionsetStartDate(DateTime$startDate)
{
if ($this->endDate !==null) {
$this->checkStartEndDateAndSetInterval($startDate,$this->endDate);
}else {
$endDate =clone$startDate;
$this->endDate =$endDate->add($this->dateInterval);
}
$this->startDate =$startDate;
}
/**
* @param DateTime $endDate
*/
publicfunctionsetEndDate(DateTime$endDate)
{
if ($this->startDate !==null) {
$this->checkStartEndDateAndSetInterval($this->startDate,$endDate);
}else {
$dateInterval =$this->dateInterval;
$dateInterval->invert =1;
$startDate =clone$endDate;
$this->startDate =$startDate->add($dateInterval);
$dateInterval->invert =0;
}
$this->endDate =$endDate;
}
/**
* @return DateTime
*/
publicfunctiongetStartDate()
{
return$this->startDate;
}
/**
* @return DateTime
*/
publicfunctiongetEndDate()
{
return$this->endDate;
}
/**
* @return string
*/
publicfunctiongetYearsComponent()
{
return (string)$this->dateInterval->y;
}
/**
* @return string
*/
publicfunctiongetMonthsComponent()
{
return (string)$this->dateInterval->m;
}
/**
* @return string
*/
publicfunctiongetDaysComponent()
{
return (string)$this->dateInterval->d;
}
/**
* @return string
* @throws Exception
*/
publicfunctiontoYears()
{
return MathFuncs::div($this->toDays(), TimeUtils::getCurrentDayCountConvention()['days_in_a_year']);
}
/**
* @return string
* @throws Exception
*/
publicfunctiontoMonths()
{
return MathFuncs::div($this->toDays(), TimeUtils::getCurrentDayCountConvention()['days_in_a_month']);
}
/**
* @return string
* @throws Exception
*/
publicfunctiontoDays()
{
$yearsComponent = TimeUtils::getDaysFromYears($this->getYearsComponent());
$monthsComponent = TimeUtils::getDaysFromMonths($this->getMonthsComponent());
return MathFuncs::add(MathFuncs::add($yearsComponent,$monthsComponent),$this->getDaysComponent());
}
publicfunctionclearStartEndDate()
{
$this->startDate =$this->endDate =null;
}
/** PRIVATE methods */
/**
* @param DateInterval $dateInterval
*/
privatefunctionsetDateInterval(DateInterval$dateInterval)
{
$this->dateInterval =$dateInterval;
}
/**
* @param $years
* @param $months
* @param $days
*/
privatefunctionnewDateIntervalAbsolute($years,$months,$days)
{
$this->setDateInterval(
newDateInterval(
"P" .
(string)$years ."Y" .
(string)$months ."M" .
(string)$days ."D"
)
);
}
/**
* @param DateTime $startDate
* @param DateTime $endDate
*/
privatefunctionnewDateIntervalDifference(DateTime$startDate,DateTime$endDate)
{
$this->setDateInterval(
$this->roundDateInterval(
$startDate->diff($endDate)
)
);
}
/**
* @param DateTime $startDate
* @param DateTime $endDate
*/
privatefunctioncheckStartEndDateAndSetInterval(DateTime$startDate,DateTime$endDate)
{
if ($startDate <$endDate) {
$this->newDateIntervalDifference($startDate,$endDate);
}else {
thrownewInvalidArgumentException(ErrorMessages::getStartDateMustBeBeforeEndDateMessage());
}
}
/**
* @param DateInterval $dateInterval
* @return DateInterval
*/
privatefunctionroundDateInterval(DateInterval$dateInterval)
{
// TODO: make more intelligent rounding based on the start and end date
if (in_array($dateInterval->d, [30,31])) {
$dateInterval->d =0;
$dateInterval->m +=1;
}
if ($dateInterval->m ==12) {
$dateInterval->y +=1;
$dateInterval->m =0;
}
return$dateInterval;
}
/**
* @return string
*/
publicfunction__toString()
{
return$this->toDays();
}
}
}