<?php

declare(strict_types=1);

namespace App\Service;

use App\Entity\Groups\AccommodationBooking;
use App\Repository\Groups\AccommodationPriceRepository;

class AccommodationBookingBreakdownCalculator
{
    public function __construct(
        private readonly GroupsPriceCalculator $priceCalculator,
        private readonly AccommodationPriceRepository $priceRepo,
    ) {
    }

    /**
     * Recomputes the price breakdown from the booking's frozen snapshot data and current
     * accommodation prices for the same date range.
     *
     * @return array<string, mixed>|null null when no accommodation or dates are set
     */
    public function compute(AccommodationBooking $booking): ?array
    {
        $accommodation = $booking->getAccommodation();
        $dateFrom = $booking->getDateFrom();
        $dateTo = $booking->getDateTo();

        if (null === $accommodation || null === $dateFrom || null === $dateTo) {
            return null;
        }

        $prices = $this->priceRepo->findByHotelCodeAndDateRange(
            $accommodation->getCalendarCode() ?? '',
            $dateFrom,
            $dateTo,
        );

        return $this->priceCalculator->calculateFromSnapshots(
            $booking->getPaxCount(),
            $booking->getMinorsCount(),
            $booking->getNights(),
            $dateFrom,
            $dateTo,
            $prices,
            $booking->getBoardServicePrice(),
            $booking->getAdditionalServices(),
            $accommodation->getCurrency(),
        );
    }
}