<?php
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type, Authorization');

if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
    http_response_code(204);
    exit;
}

$requestUri = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
$requestUri = ltrim($requestUri, '/');

if ($requestUri === '' || $requestUri === 'index.php') {
    $requestUri = 'components.html';
}

$file = __DIR__ . '/' . $requestUri;

if (!file_exists($file) || is_dir($file)) {
    http_response_code(404);
    exit('Not found');
}

$ext = strtolower(pathinfo($file, PATHINFO_EXTENSION));
$mimeTypes = [
    'html' => 'text/html; charset=utf-8',
    'css'  => 'text/css; charset=utf-8',
    'js'   => 'application/javascript; charset=utf-8',
    'svg'  => 'image/svg+xml',
    'png'  => 'image/png',
    'jpg'  => 'image/jpeg',
    'jpeg' => 'image/jpeg',
    'gif'  => 'image/gif',
    'ico'  => 'image/x-icon',
    'json' => 'application/json',
    'woff' => 'font/woff',
    'woff2'=> 'font/woff2',
    'ttf'  => 'font/ttf',
];

$mime = $mimeTypes[$ext] ?? 'application/octet-stream';
header('Content-Type: ' . $mime);

readfile($file);