YetiForceCompany/YetiForceCRM

<?php
/**
 * Tools for iban file.
 *
 * @package App
 *
 * @copyright YetiForce S.A.
 * @license   YetiForce Public License 6.5 (licenses/LicenseEN.txt or yetiforce.com)
 * @author    Adrian Kon <a.kon@yetiforce.com>
 */

namespace App\Fields;

/**
 * Iban class.
 */
class Iban
{
    /**
     * Function returns IBAN value.
     *
     * @param array               $fieldParams
     * @param Vtiger_Record_Model $recordModel
     *
     * @return string
     */
    public function getIbanValue(array $fieldParams, \Vtiger_Record_Model $recordModel): string
    {
        $this->fieldParams = $fieldParams;
        $this->recordModel = $recordModel;
        if ($this->checkIfFieldHasMandatoryParams()) {
            $iban = new \PHP_IBAN\IBAN();
            $this->countryIban = new \PHP_IBAN\IBANCountry($this->fieldParams['country']);
            $countryIbanLength = $this->countryIban->IBANLength();
            $checkSumValueForCreateIban = '00';
            $payerId = $this->getPayerId();
            $ibanNumberForCalculateCheckSum = $this->fieldParams['country'] . $checkSumValueForCreateIban . $this->fieldParams['sortCode'] . $this->fieldParams['clientId'] . $payerId;
            $checkSumValue = $iban->FindChecksum($ibanNumberForCalculateCheckSum);
            if ((int) $countryIbanLength !== \strlen($ibanNumberForCalculateCheckSum)) {
                return '';
            }
            return $this->fieldParams['country'] . $checkSumValue . $this->fieldParams['sortCode'] . $this->fieldParams['clientId'] . $payerId;
        }
    }

    /**
     * Checks if field params has mandatory values.
     *
     *  @throws \App\Exceptions\AppException
     *
     * @return bool
     */
    protected function checkIfFieldHasMandatoryParams(): bool
    {
        if (isset($this->fieldParams['country'], $this->fieldParams['sortCode'], $this->fieldParams['clientId'], $this->fieldParams['conditions'])) {
            return true;
        }
        throw new \App\Exceptions\AppException('ERR_NO_VALUE');
    }

    /**
     * Create payers id value for IBAN.
     *
     * @return string
     */
    protected function getPayerId(): string
    {
        $bbanLength = $this->countryIban->BBANLength();
        $conditionsForPayerId = $this->fieldParams['conditions'];
        $payerCharactersAmount = $bbanLength - \strlen($this->fieldParams['sortCode']) - \strlen($this->fieldParams['clientId']);
        if (\is_array($conditionsForPayerId)) {
            foreach ($conditionsForPayerId as $conditionValues) {
                [$fieldNameForCondition, $fieldFromGetValue, $fieldValueForCondition] = array_pad(explode(':', $conditionValues), 3, false);
                if ('defaultValue' === $fieldNameForCondition || ($fieldValueForCondition && $fieldValueForCondition === $this->recordModel->get($fieldNameForCondition))) {
                    $valueForPayerId = $this->recordModel->get($fieldFromGetValue);
                    if ($valueForPayerId && \strlen($valueForPayerId) !== $payerCharactersAmount) {
                        return $this->addLeadingZeros($payerCharactersAmount, $valueForPayerId);
                    }
                }
            }
        }
        if ('random' === $conditionsForPayerId && isset($this->fieldParams['clientIdPattern'])) {
            return $this->createRandomPayerId();
        }
        return '';
    }

    /**
     * Add leading zeros to payer id if necessary.
     *
     * @param int    $payerCharactersAmount
     * @param string $valueForPayerId
     *
     * @return string
     */
    protected function addLeadingZeros(int $payerCharactersAmount, string $valueForPayerId): string
    {
        return str_pad($valueForPayerId, $payerCharactersAmount, '0', STR_PAD_LEFT);
    }

    /**
     * Create randomly payer id by pattern.
     *
     * @return string
     */
    protected function createRandomPayerId(): string
    {
        $clientPattern = $this->fieldParams['clientIdPattern'];
        $patternLength = \strlen($clientPattern);
        $payerId = '';
        $letters = range('A', 'Z');
        $numbers = range('0', '9');
        $lettersAndNumbers = array_merge($letters, $numbers);
        for ($charPosition = 0; $charPosition < $patternLength; ++$charPosition) {
            switch ($clientPattern[$charPosition]) {
                case 'N':
                    $payerId .= rand(0, 9);
                    break;
                case 'A':
                    $randomKey = array_rand($letters, 1);
                    $payerId .= $letters[$randomKey];
                    break;
                case 'X':
                    $randomKey = array_rand($letters, 1);
                    $payerId .= $lettersAndNumbers[$randomKey];
                    break;
            }
        }
        return $payerId;
    }
}