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<?php |
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declare(strict_types = 1); |
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namespace Kauri\Loan; |
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class PaymentScheduleConfig implements PaymentScheduleConfigInterface |
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{ |
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private $noOfPayments; |
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private $startDate; |
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private $averageIntervalLength = 0; |
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private $dateInterval; |
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private $firstPaymentDate; |
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/** |
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* PaymentScheduleConfig constructor. |
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* @param int $noOfPayments |
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* @param \DateTimeInterface $startDate |
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* @param string $dateIntervalPattern |
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* @param \DateTimeInterface|null $firstPaymentDate |
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*/ |
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public function __construct( |
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int $noOfPayments, |
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\DateTimeInterface $startDate, |
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string $dateIntervalPattern, |
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\DateTimeInterface $firstPaymentDate = null |
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) { |
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$this->noOfPayments = $noOfPayments; |
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$this->startDate = new \DateTime($startDate->format('Y-m-d'), new \DateTimeZone('UTC')); |
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if (!is_null($firstPaymentDate)) { |
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$this->firstPaymentDate = new \DateTime($firstPaymentDate->format('Y-m-d'), new \DateTimeZone('UTC')); |
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} |
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$this->dateInterval = new \DateInterval($dateIntervalPattern); |
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$this->averageIntervalLength = $this->extractIntervalLength($this->dateInterval); |
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} |
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/** |
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* @param \DateInterval $dateInterval |
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* @return int |
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*/ |
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private function extractIntervalLength(\DateInterval $dateInterval): int |
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{ |
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$intervalLength = 0; |
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$intervalMultiplier = array( |
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'd' => 1, |
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'm' => 30, |
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'y' => 30 * 12 |
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); |
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foreach ($intervalMultiplier as $pattern => $multiplier) { |
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if ($dateInterval->format('%' . $pattern) > 0) { |
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$intervalLength = $intervalLength + (int) $dateInterval->format('%' . $pattern) * $multiplier; |
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} |
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} |
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return (int) $intervalLength; |
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} |
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/** |
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* @return int |
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*/ |
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public function getNoOfPayments(): int |
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{ |
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return $this->noOfPayments; |
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} |
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/** |
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* @return \DateTimeInterface |
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*/ |
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public function getStartDate(): \DateTimeInterface |
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{ |
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return $this->startDate; |
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} |
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/** |
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* @return int |
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*/ |
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public function getAverageIntervalLength(): int |
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{ |
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return $this->averageIntervalLength; |
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} |
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/** |
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* @return \DateInterval |
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*/ |
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public function getDateInterval(): \DateInterval |
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{ |
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return $this->dateInterval; |
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} |
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/** |
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* @return \DateTimeInterface|null |
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*/ |
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public function getFirstPaymentDate(): ?\DateTimeInterface |
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{ |
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return $this->firstPaymentDate; |
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} |
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} |
kaurikk /
loan-payment-schedule
