<?php

namespace App\Services\Allocations;

use App\Models\Allocation;
use App\Exceptions\Service\Allocation\ServerUsingAllocationException;

class AllocationDeletionService
{
    /**
     * Delete an allocation from the database only if it does not have a server
     * that is actively attached to it.
     *
     * @throws \App\Exceptions\Service\Allocation\ServerUsingAllocationException
     */
    public function handle(Allocation $allocation): int
    {
        if (!is_null($allocation->server_id)) {
            throw new ServerUsingAllocationException(trans('exceptions.allocations.server_using'));
        }

        return (int) $allocation->delete();
    }
}