Update Route.php

Route.php

@@ -5,15 +5,36 @@ namespace WillySoft;
 use \Exception;
 use \InvalidArgumentException;
 
+/**
+ * Minimalistic Web Application Router 
+ */
 abstract class Route
 {
+    /**
+     * Used for group prefixes
+     */
     static string $prefix = '';
+
+    /**
+     * Stores the middleware callbacks in their respective group; each nesting represented by index
+     */
     static array  $groups = [
-		[]
+        // Default initialized group where all middlewares are added to if they are not inside any other groups 
+		[
+            //fn() => print('this could be a middleware, and it would print on every single route!')
+        ],
+        //[
+        //   fn() => print('this is what it would look like if a new group was created and a middleware was
+        //      added inside of it!')
+        //]
 	];
 
-	private static function getRequestPath(): string
+    /**
+     * Get request path relative to the entrypoint of the application
+     */
+	static function getRelativeRequestPath(): string
 	{
+        // try to save a negligible amount of performance by caching the computated result
 		static $request_url_path;
 
 		if (isset($request_url_path)) {
@@ -29,14 +50,17 @@ abstract class Route
 		return $request_url_path;
 	}
 
-    static function match(string $methods, string $url_path, callable $callback)
+    /**
+     * Run all middlewares then callback if supplied arguments correspond with the request
+     */
+    static function match(string $methods, string $url_path, callable $callback): void
     {
 		if (!in_array(
 			$_SERVER['REQUEST_METHOD'],
 			array_map(strtoupper(...), explode('|', $methods))
 		)) return;
 
-        $request_url_path_parts = explode('/', self::getRequestPath());
+        $request_url_path_parts = explode('/', self::getRelativeRequestPath());
 
         $url_path_parts = explode('/', self::$prefix . $url_path);
         $callback_args = [];
@@ -79,38 +103,56 @@ abstract class Route
         die();
     }
 
-    static function get(string $url_path, callable $callback)
+    // Shorthand for self::match(...)
+    static function get(string $url_path, callable $callback): void
         {self::match('get', $url_path, $callback);}
-    static function post(string $url_path, callable $callback)
+    // Shorthand for self::match(...)
+    static function post(string $url_path, callable $callback): void
         {self::match('post', $url_path, $callback);}
-    static function put(string $url_path, callable $callback)
+    // Shorthand for self::match(...)
+    static function put(string $url_path, callable $callback): void
         {self::match('put', $url_path, $callback);}
-    static function patch(string $url_path, callable $callback)
+    // Shorthand for self::match(...)
+    static function patch(string $url_path, callable $callback): void
         {self::match('patch', $url_path, $callback);}
-    static function delete(string $url_path, callable $callback)
+    // Shorthand for self::match(...)
+    static function delete(string $url_path, callable $callback): void
         {self::match('delete', $url_path, $callback);}
-    static function options(string $url_path, callable $callback)
+    // Shorthand for self::match(...)
+    static function options(string $url_path, callable $callback): void
         {self::match('options', $url_path, $callback);}
-    static function form(string $url_path, callable $callback)
+    // Shorthand for self::match(...)
+    static function form(string $url_path, callable $callback): void
         {self::match('get|post', $url_path, $callback);}
-    static function any(string $url_path, callable $callback)
+    // Shorthand for self::match(...)
+    static function any(string $url_path, callable $callback): void
         {self::match('get|post|put|patch|delete|options', $url_path, $callback);}
 
-    static function use(callable $middleware)
+    /**
+     * Adds Adds middleware to its respective group
+     */
+    static function use(callable $middleware): void
     {
         array_push(
             self::$groups[array_key_last(self::$groups)],
             $middleware
         );
     }
-
-    static function group(string $prefix = '', ?callable $callback = null)
+    
+    /**
+     * Create new route group
+     * 
+     * @param string   $prefix   Optional prefix can be supplied; the group is ignored if getRelativeRequestPath
+     *                           does not correspond with the supplied value.
+     * @param callable $callback Required; the insides of the group
+     */
+    static function group(string $prefix = '', ?callable $callback = null): void
     {
 		if ($callback === null) {
-			throw new InvalidArgumentException('Argument $callback must be of type callable.');
+			throw new InvalidArgumentException('Argument callback must be of type callable.');
 		}
         if (!str_starts_with(
-            self::getRequestPath(),
+            self::getRelativeRequestPath(),
             self::$prefix . $prefix
         )) return;
         self::$prefix = self::$prefix . $prefix;