Movavi\Builder\AverageRateBuilder::fromArray()

Complexity

Conditions	2
Paths	2

Size

Total Lines	24
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function fromArray(array $rates): Rate
    {
        if (empty($rates)) {
            throw new EmptyRateListException();
        }

        $ratesSum = array_sum(
            array_map(
                function(Rate $rate): float
                {
                    return $rate->getRate();
                },
                $rates
            )
        );

        $averageRate = $ratesSum / count($rates);
        $firstRate = array_shift($rates);

        return new Rate(
            $firstRate->getCurrencyFrom(),
            $firstRate->getCurrencyTo(),
            $firstRate->getDate(),
            $averageRate
        );