PayHelper / payments-hub

        $min = $gatewayConfig['minAmount'];

        $max = $gatewayConfig['maxAmount'];

        if (null !== $max && null !== $value->getAmount() && $value->getAmount() > $max) {

            $this->context->buildViolation($constraint->maxMessage)

                ->setParameter('{{ value }}', $this->formatValue($value->getAmount() / 100, self::PRETTY_DATE))

                ->setParameter('{{ limit }}', $this->formatValue($max / 100, self::PRETTY_DATE))

                ->setCode(AmountRange::TOO_HIGH_ERROR)

                ->atPath('amount')

                ->addViolation();

            return;

        }

        if (null !== $min && null !== $value->getAmount() && $value->getAmount() < $min) {

            $this->context->buildViolation($constraint->minMessage)

            return;

        }

        if (null !== $min && null !== $value->getAmount() && $value->getAmount() < $min) {

            $this->context->buildViolation($constraint->minMessage)

                ->setParameter('{{ value }}', $this->formatValue($value->getAmount() / 100, self::PRETTY_DATE))

                ->setParameter('{{ limit }}', $this->formatValue($min / 100, self::PRETTY_DATE))

                ->setCode(AmountRange::TOO_LOW_ERROR)

                ->atPath('amount')

                ->addViolation();

        }

    }

}