<?php

declare(strict_types=1);

namespace Modules\Helpdesk\Http\Controllers;

use Illuminate\Contracts\Filesystem\FileNotFoundException;
use Illuminate\Http\RedirectResponse;
use Illuminate\Routing\Controller;
use Illuminate\Support\Facades\Gate;
use Illuminate\Support\Facades\Storage;
use Illuminate\View\View;
use Modules\Helpdesk\Models\Attachment;
use Symfony\Component\HttpFoundation\StreamedResponse;

final class AttachmentPreviewController extends Controller
{
    /**
     * Preview a safe Helpdesk attachment after enforcing ticket access.
     *
     * @throws FileNotFoundException
     */
    public function __invoke(Attachment $attachment): View|StreamedResponse|RedirectResponse
    {
        $ticket = $attachment->ticket;

        if ($ticket !== null) {
            Gate::authorize('view', $ticket);
        }

        abort_unless(Storage::disk($attachment->disk)->exists($attachment->path), 404);

        if ($attachment->isSourceCode()) {
            $contents = Storage::disk($attachment->disk)->get($attachment->path);

            return view('helpdesk::attachments.source-preview', [
                'attachment' => $attachment,
                'contents' => is_string($contents) ? $contents : '',
                'language' => $attachment->language(),
            ]);
        }

        abort_unless($attachment->isPreviewableBinary(), 404);

        return Storage::disk($attachment->disk)->response($attachment->path, $attachment->original_name, [
            'Content-Disposition' => 'inline; filename="' . addslashes($attachment->original_name) . '"',
            'X-Content-Type-Options' => 'nosniff',
        ]);
    }
}