From 1ad567f33765f7f9a012d21579d033c85ab2d1a1 Mon Sep 17 00:00:00 2001
From: tracer <tracer@24unix.net>
Date: Sat, 22 Oct 2022 12:43:57 +0200
Subject: [PATCH] refactored routing to handle any number of parameters

---
 src/Service/Router.php | 63 +++++++++++++++++++-----------------------
 1 file changed, 28 insertions(+), 35 deletions(-)

diff --git a/src/Service/Router.php b/src/Service/Router.php
index c9636d1..d6627e9 100644
--- a/src/Service/Router.php
+++ b/src/Service/Router.php
@@ -3,51 +3,44 @@
 namespace App\Service;
 
 
+use App\Entity\Route;
+use Closure;
+
 class Router
 {
-    private array $uri;
     private array $routes;
 
-    public function __construct()
+    /*
+     * This method takes a route like /admin/users/{user} and create a regex to match on call
+     */
+    function addRoute(string $name, string $route, Closure $callback): void
     {
-        $uri       = parse_url(url: $_SERVER['REQUEST_URI'], component: PHP_URL_PATH);
-        $this->uri = explode(separator: '/', string: $uri);
-    }
+        // check for parameters
+        preg_match_all(pattern: "/(?<={).+?(?=})/", subject: $route, matches: $matches);
+        $parameters = $matches[0];
 
-    public function registerRoute(string $route, \Closure $callback): void
-    {
-        $this->routes[$route] = $callback;
-    }
+        // create regex for route:
+        $regex = preg_replace(pattern: '/(?<={).+?(?=})/', replacement: '(.*?)', subject: $route);
+        $regex = str_replace(search: '{', replace: '', subject: $regex);
+        $regex = str_replace(search: '}', replace: '', subject: $regex);
+        $regex = '/^' . str_replace(search: "/", replace: '\\/', subject: $regex) . '$/i';
+        $route = new Route(name: $name, route: $route, regEx: $regex, parameters: $parameters, callback: $callback);
 
-
-    private function matchRoute($url = '/users/tracer/posts/tracer', $method = 'GET')
-    {
-        $reqUrl = $url;
-
-        $reqUrl = rtrim(string: $reqUrl, characters: "/");
-
-        foreach ($this->routes as $route => $closure) {
-            // convert urls like '/users/:uid/posts/:pid' to regular expression
-            // $pattern = "@^" . preg_replace('/\\\:[a-zA-Z0-9\_\-]+/', '([a-zA-Z0-9\-\_]+)', preg_quote($route['url'])) . "$@D";
-            $pattern = "@^" . preg_replace('\\/users/:[a-zA-Z0-9\_\-]+/', '([a-zA-Z0-9\-\_]+)', $route) . "$@D";
-            // echo $pattern."\n";
-            $params = [];
-            // check if the current request params the expression
-            $match = preg_match($pattern, $reqUrl, $params);
-            if ($match) {
-                // remove the first match
-                array_shift($params);
-                // call the callback with the matched positions as params
-                // return call_user_func_array($route['callback'], $params);
-                return [$route, $params];
-            }
-        }
-        return [];
+        $this->routes[] = $route;
     }
 
     public function handleRouting(): void
     {
-        $foo = $this->matchRoute();
-        var_dump($foo);
+        $requestUri = $_SERVER['REQUEST_URI'];
+
+        foreach ($this->routes as $route) {
+            if (preg_match(pattern:  $route->getRegex(), subject: $requestUri, matches: $matches)) {
+                $parameters = [];
+                foreach ($route->getParameters() as $id => $parameter) {
+                    $parameters[$parameter] = $matches[$id +1];
+                }
+                call_user_func(callback: $route->getCallback(), args: $parameters);
+            }
+        }
     }
 }
\ No newline at end of file