<?php

declare(strict_types=1);

namespace App\Form\Service;

use App\BusProNet\Utility\DirectionMapper;
use App\Form\Model\BookingDto;
use App\Form\Service\Abstract\AbstractParticipantFieldHandler;

/**
 * Handles pickup location selection for the outbound bus journey.
 *
 * Pickup is only processed when outbound transportation is bus type.
 * Automatically clears pickup when outbound changes to self-organized (PKW).
 */
class ParticipantPickupFieldHandler extends AbstractParticipantFieldHandler
{
    public function getFieldName(): string
    {
        return 'pickup';
    }

    public function getDependencies(): array
    {
        return ['transportationOutbound', 'transportationInbound'];
    }

    public function shouldProcess(array $submittedData, string $mode, int $participantIndex): bool
    {
        return true; // Always process to handle clearing pickup
    }

    public function processField(array $submittedData, BookingDto $bookingDto, int $participantIndex): void
    {
        $participant = $this->getParticipant($bookingDto, $participantIndex);
        if (null === $participant) {
            return;
        }

        // Pickup applies only to outbound bus journey - clear when outbound is not bus
        $hasOutboundBus = null !== $participant->transportationOutbound
            && DirectionMapper::SUBTYPE_BUS_API === $participant->transportationOutbound->subType;

        if (false === $hasOutboundBus) {
            $participant->pickup = null;

            return;
        }

        $selectedPickup = $this->getFieldValue($submittedData, $this->getFieldName());

        // Validate pickup selection against available outbound pickups
        $participant->pickup = $this->findItemById($selectedPickup, $bookingDto->travel->pickups);
    }
}