<?php

namespace App\Support;

use App\Models\QrCode;
use App\Models\Transfer;
use App\Models\TransferFile;
use RuntimeException;

class DirectTransferFileUrl
{
    public static function for(Transfer $transfer, TransferFile $file): string
    {
        $shortCode = $transfer->qrCode?->short_code;
        if ($shortCode === null || $shortCode === '') {
            throw new RuntimeException('Transfer file URL is unavailable.');
        }

        return QrCode::publicBaseUrl().'/q/'.$shortCode.'/transfer/files/'.$file->id;
    }
}