<?php

namespace KupShop\DropshipBundle\Util;

use KupShop\DropshipBundle\Exception\TransferNotFoundException;
use KupShop\DropshipBundle\TransferInterface;

class TransferLocator
{
    private $transfers;

    public function __construct(iterable $transfers)
    {
        $this->transfers = $transfers;
    }

    public function getTypes(): array
    {
        return array_keys($this->getTransfers());
    }

    /**
     * @return TransferInterface[]
     */
    public function getTransfers(): array
    {
        $result = [];

        foreach ($this->transfers as $transfer) {
            $result[$transfer::getType()] = $transfer;
        }

        return $result;
    }

    public function getTransfer(string $type): TransferInterface
    {
        if ($transfer = $this->getTransfers()[$type] ?? null) {
            return $transfer;
        }

        throw new TransferNotFoundException($type);
    }
}