<?php

namespace App\Http\Controllers;

use App\Models\Certificate;
use Illuminate\Support\Facades\Storage;
use Symfony\Component\HttpFoundation\StreamedResponse;

class CertificatePreviewController extends Controller
{
    /**
     * Stream a certificate's file inline (for embedding in the view page)
     * rather than forcing a download. The global scope on the model ensures
     * a foreign certificate resolves to a 404.
     */
    public function __invoke(Certificate $certificate): StreamedResponse
    {
        abort_unless(filled($certificate->file_path) && Storage::disk('local')->exists($certificate->file_path), 404);

        return Storage::disk('local')->response($certificate->file_path);
    }
}