<?php

declare(strict_types=1);

namespace App\Service;

use App\BusProNet\Model\Service;

/**
 * Formats service labels for form and UI display.
 */
final class ServiceLabelFormatter
{
    public function formatServiceLabel(Service $service): string
    {
        $label = $service->label ?? '';

        if (null === $service->price) {
            return $label;
        }

        if (0.0 === $service->price) {
            return sprintf('%s (inkl.)', $label);
        }

        if ($service->price < 0) {
            return sprintf('%s (-%s€ Rabatt)', $label, number_format(abs($service->price), 2, ',', '.'));
        }

        return sprintf('%s (€%s)', $label, number_format($service->price, 2, ',', '.'));
    }

    /**
     * @param array<int, Service> $services
     */
    public function formatServiceLabelForServices(string $fallbackLabel, array $services): string
    {
        $service = reset($services);
        if (false === $service) {
            return $fallbackLabel;
        }

        if (!$service instanceof Service) {
            return $fallbackLabel;
        }

        return $this->formatServiceLabel($service);
    }
}