add this to git finally

index.php

@@ -0,0 +1,49 @@
+<?php
+include_once 'database.php';
+
+$request = $_SERVER['REQUEST_URI'];
+$path = parse_url($request, PHP_URL_PATH);
+
+if (isset($_COOKIE["user_id"])) {
+    error_log('cookie is set', 0);
+} else {
+    error_log('cookie is NOT set', 0);
+    $ids = initializeApp(null);
+    setcookie("user_id", $ids["user_id"], time() + 3600, "/");
+    setcookie("db_file", $ids["db_file"], time() + 3600, "/");
+
+    $_COOKIE["user_id"] = $ids["user_id"];
+    $_COOKIE["db_file"] = $ids["db_file"];
+}
+
+/* TODO: remove for prod code */
+$file_path = __DIR__.$request;
+$extension = pathinfo($file_path, PATHINFO_EXTENSION);
+if ($extension === 'css') { 
+    header('Content-Type: text/css');
+    readfile($file_path);
+    exit;
+}
+/* TODO: remove for prod code */
+
+switch($path) {
+    case '': case '/': case '/products':
+        require __DIR__.'/products.php';
+        break;
+    case '/login':
+        require __DIR__.'/login.php';
+        break;
+    case '/register':
+        require __DIR__.'/register.php';
+        break;
+    case '/logout':
+        require __DIR__.'/logout.php';
+        break;
+    case '/orders':
+        require __DIR__.'/orders.php';
+        break;
+    case '/users':
+        require __DIR__.'/users.php';
+        break;
+}
+?>