<?php

namespace App\BusProNet\DataProvider;

use App\BusProNet\Model\Pickup;
use App\MyEp\Api\ApiClient;
use App\MyEp\Api\ResponseMapper;
use App\MyEp\Cache\StaleWhileErrorCache;

/**
 * Boarding point base data, read from MyE&P rather than from BusProNet directly.
 *
 * These are the stops themselves, without a departure time: a time belongs to a stop on
 * a given travel date and is carried by the destination's pickups instead.
 */
class PickupDataProvider
{
    private const CACHE_KEY = 'myep_pickups';
    private const TTL = 3600;

    public function __construct(
        private readonly ApiClient $apiClient,
        private readonly ResponseMapper $responseMapper,
        private readonly StaleWhileErrorCache $cache,
    ) {
    }

    /**
     * @return array<int, Pickup> keyed by busProId
     */
    public function getAll(): array
    {
        return $this->cache->get(
            self::CACHE_KEY,
            self::TTL,
            fn (): array => $this->responseMapper->mapPickups($this->apiClient->get('api/pickups')),
        );
    }

    public function get(int $busProId): ?Pickup
    {
        return $this->getAll()[$busProId] ?? null;
    }
}