34 lines
859 B
PHP
34 lines
859 B
PHP
<?php
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namespace App\Domain\Reports\Calculators;
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use App\Domain\Reports\Models\MetricAggregate;
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use App\Domain\Reports\Models\StayInterval;
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final class BedDaysCalculator
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{
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/**
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* @param iterable<StayInterval> $intervals
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*/
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public function calculate(iterable $intervals): MetricAggregate
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{
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$totalDays = 0;
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$patientCount = 0;
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foreach ($intervals as $interval) {
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if ($interval->endAt < $interval->startAt) {
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continue;
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}
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$totalDays += $interval->startAt->setTime(0, 0)->diff($interval->endAt->setTime(0, 0))->days;
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$patientCount++;
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}
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return new MetricAggregate(
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total: $totalDays,
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count: $patientCount,
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average: $patientCount > 0 ? round($totalDays / $patientCount, 2) : 0.0,
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);
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}
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}
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