first commit

app/Core/router.php

@@ -0,0 +1,48 @@
+<?php
+namespace Blog\Core;
+
+use Blog\Middleware\middlewareInterface;
+use Blog\Http\request;
+use Blog\Http\response;
+
+class Router {
+  private array $routes = [];
+
+  public function addRoute(string $method, string $path, callable $handler, array $middlewares = []): void {
+    $path = preg_replace('/{(\w+)}/', '(?P<$1>[^/]+)', $path);
+    $this->routes[] = compact("method", "path", "handler", "middlewares");
+  }
+
+  public function dispatch(Request $req, Response $res): void {
+    $method = $req->getMethod();
+    $uri = $req->getPath();
+
+    foreach($this->routes as $route) {
+      if($route['method'] === $method && preg_match("~^" . $route['path'] . "$~", $uri, $matches)) {
+        array_shift($matches);
+        $params = array_filter($matches, 'is_string', ARRAY_FILTER_USE_KEY);
+        if(!$this->handleMiddlewares($route['middlewares'], $req, $res))
+          return;
+        call_user_func_array($route['handler'], array_merge([ $req, $res ], $params));
+        $res->send();
+        return;
+      }
+    }
+
+    $res
+      ->setStatus(404)
+      ->getBody()
+      ->write("404 - Not Found")
+      ->send();
+  }
+
+  private function handleMiddlewares(array $middlewares, Request $req, Response $res): bool {
+    foreach($middlewares as $middleware) {
+      $middlewareInstance = is_string($middleware) ? new $middleware() : $middleware;
+      if($middlewareInstance instanceof MiddlewareInterface)
+        if(!$middlewareInstance->handle($req, $res))
+          return false;
+    }
+    return true;
+  }
+}