<?php

namespace App\Http\Controllers;

use Illuminate\Http\RedirectResponse;
use Symfony\Component\HttpFoundation\BinaryFileResponse;

class AdminSpaController extends Controller
{
    public function __invoke(?string $path = null): BinaryFileResponse|RedirectResponse
    {
        $index = public_path('admin/index.html');
        abort_unless(is_file($index), 404);

        $path = $path === null ? '' : trim($path, '/');

        if ($path !== '' && $this->isStaticAsset($path)) {
            abort(404);
        }

        if ($path !== '' && $path !== 'index.html') {
            $hashUrl = '/admin/#/'.$path;
            $query = request()->getQueryString();
            if (is_string($query) && $query !== '') {
                $hashUrl .= '?'.$query;
            }

            return redirect($hashUrl);
        }

        return response()->file($index, ['Content-Type' => 'text/html; charset=UTF-8']);
    }

    protected function isStaticAsset(string $path): bool
    {
        if (str_starts_with($path, 'assets/')) {
            return true;
        }

        return (bool) preg_match('/\.(?:js|css|png|jpe?g|gif|svg|ico|woff2?|ttf|map|webp)$/i', $path);
    }
}