1 files changed, 97 insertions, 0 deletions
diff --git a/classes/Route.php b/classes/Route.php
new file mode 100644
index 0000000..072723c
--- /dev/null
+++ b/classes/Route.php
@@ -0,0 +1,97 @@
+<?php
+
+/** Route
+ * ---
+ * Methods:
+ * - add( expression , callback_function , method )
+ * - notFound( callback_function )
+ * - methodNotAllowed( callback_function )
+ * - run()
+ *
+ * + matches static paths
+ * + matches dynamic paths through regex expressions
+ * + takes care of request-method
+ */
+class Route {
+
+    private static $routes = Array();       // array to host routes
+    private static $notFound = null;        // 404 error function
+    private static $methodNotAllowed = null;    // 404 error function
+
+    /** add (route)
+     * ---
+     * @param $expression : (string) static or regex matcher
+     * @param $function : callback function to be executed if expression is matched
+     * @param $method : get / post / any
+     */
+    public static function add( $expression, $function, $method = 'get' )
+    {
+        array_push(self::$routes, Array(
+            'expression' => $expression,
+            'function' => $function,
+            'method' => strtolower($method)
+        ));
+    }
+
+
+    /** notFound($function)
+     * ---
+     * @param $function : call back function to be executed
+     */
+    public static function notFound($function)
+    {
+        self::$notFound = $function;
+    }
+
+
+    /** run()
+     * ---
+     * Parse request ; Find mathing route ;
+     * then call route's function
+     * usualy a Controller::method([poarametres])
+     */
+    public static function run(Request $request)
+    {
+        // $request = Registry::get('REQUEST');
+        $path   = $request->PATH;       // request path
+        $method = $request->METHOD;     // request method
+
+        $path_match_found = false;
+        $route_match_found = false;
+
+        foreach(self::$routes as $route) {
+
+            // If method matched check the path
+            if ($route['method'] == $method || $method == 'any') {
+
+                // Add 'find string start' automatically
+                $route['expression'] = '^'.$route['expression'];
+
+                // Add 'find string end' automatically
+                $route['expression'] = $route['expression'].'$';
+
+                // Check path match
+                if (preg_match('#'. $route['expression'] .'#', $path, $matches)) {
+
+                    $route_match_found = true;
+
+                    array_shift($matches);  // Always remove first element. This contains the whole string
+
+                    call_user_func_array($route['function'], $matches);
+                    break;  // Do not check other routes
+
+                }
+            }
+        }
+
+        // No matching route was found
+        if (!$route_match_found) {
+            header("HTTP/1.0 404 Not Found");
+            if (self::$notFound) {
+                call_user_func_array(self::$notFound, []);
+            }
+        }
+
+    }
+
+}