<?php

use App\Domain\Reports\Calculators\PreoperativeDaysCalculator;
use App\Domain\Reports\Models\OperationInterval;

it('calculates total and average preoperative days', function () {
    $calculator = new PreoperativeDaysCalculator;

    $result = $calculator->calculate([
        new OperationInterval(
            admittedAt: new DateTimeImmutable('2026-04-01 10:00:00'),
            operationAt: new DateTimeImmutable('2026-04-03 09:00:00'),
        ),
        new OperationInterval(
            admittedAt: new DateTimeImmutable('2026-04-05 10:00:00'),
            operationAt: new DateTimeImmutable('2026-04-06 09:00:00'),
        ),
    ]);

    expect($result->total)->toBe(3)
        ->and($result->count)->toBe(2)
        ->and($result->average)->toBe(1.5);
});

it('ignores invalid preoperative intervals', function () {
    $calculator = new PreoperativeDaysCalculator;

    $result = $calculator->calculate([
        new OperationInterval(
            admittedAt: new DateTimeImmutable('2026-04-03 10:00:00'),
            operationAt: new DateTimeImmutable('2026-04-01 09:00:00'),
        ),
    ]);

    expect($result->total)->toBe(0)
        ->and($result->count)->toBe(0)
        ->and($result->average)->toBe(0.0);
});