status/method enums, middleware base grounds

src/main/java/org/lumijiez/core/http/HttpMethod.java

@@ -0,0 +1,13 @@
+package org.lumijiez.core.http;
+
+public enum HttpMethod {
+    GET, POST, PUT, DELETE, HEAD, OPTIONS;
+
+    public static HttpMethod fromString(String method) {
+        try {
+            return valueOf(method.toUpperCase());
+        } catch (IllegalArgumentException e) {
+            throw new UnsupportedOperationException("Unsupported HTTP method: " + method);
+        }
+    }
+}

src/main/java/org/lumijiez/core/http/HttpServer.java

@@ -131,6 +131,7 @@ public class HttpServer {
             }
         }
     }
+
     public void stop() {
         running = false;
         if (serverSocket != null) {

src/main/java/org/lumijiez/core/http/HttpStatus.java

@@ -0,0 +1,22 @@
+package org.lumijiez.core.http;
+
+public enum HttpStatus {
+    OK(200, "OK"),
+    CREATED(201, "Created"),
+    NO_CONTENT(204, "No Content"),
+    BAD_REQUEST(400, "Bad Request"),
+    NOT_FOUND(404, "Not Found"),
+    METHOD_NOT_ALLOWED(405, "Method Not Allowed"),
+    INTERNAL_SERVER_ERROR(500, "Internal Server Error");
+
+    private final int code;
+    private final String message;
+
+    HttpStatus(int code, String message) {
+        this.code = code;
+        this.message = message;
+    }
+
+    public int getCode() { return code; }
+    public String getMessage() { return message; }
+}

src/main/java/org/lumijiez/core/middleware/Chain.java

@@ -0,0 +1,10 @@
+package org.lumijiez.core.middleware;
+
+import org.lumijiez.core.http.HttpRequest;
+import org.lumijiez.core.http.HttpResponse;
+
+import java.io.IOException;
+
+public interface Chain {
+    void next(HttpRequest request, HttpResponse response) throws IOException;
+}

src/main/java/org/lumijiez/core/middleware/Middleware.java

@@ -0,0 +1,11 @@
+package org.lumijiez.core.middleware;
+
+import com.sun.net.httpserver.Filter;
+import org.lumijiez.core.http.HttpRequest;
+import org.lumijiez.core.http.HttpResponse;
+
+import java.io.IOException;
+
+public interface Middleware {
+    void process(HttpRequest request, HttpResponse response, Chain chain) throws IOException;
+}

src/main/java/org/lumijiez/core/routing/Route.java

@@ -0,0 +1,15 @@
+package org.lumijiez.core.routing;
+
+public class Route {
+    private final HttpMethod method;
+    private final String path;
+    private final HttpHandler handler;
+
+    public Route(HttpMethod method, String path, HttpHandler handler) {
+        this.method = method;
+        this.path = path;
+        this.handler = handler;
+    }
+
+    // Add getters...
+}

src/main/java/org/lumijiez/core/routing/Router.java

@@ -3,27 +3,56 @@ package org.lumijiez.core.routing;
 import org.lumijiez.core.http.HttpHandler;
 import org.lumijiez.core.http.HttpRequest;
 import org.lumijiez.core.http.HttpResponse;
+import org.lumijiez.core.middleware.Chain;
+import org.lumijiez.core.middleware.Middleware;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 public class Router {
-    private final Map<String, HttpHandler> routes = new HashMap<>();
+    private final Map<String, Route> routes = new HashMap<>();
+    private final List<Middleware> middleware = new ArrayList<>();
 
-    public void addRoute(String method, String path, HttpHandler handler) {
-        String key = method.toUpperCase() + ":" + path;
-        routes.put(key, handler);
+    public void addMiddleware(Middleware middleware) {
+        this.middleware.add(middleware);
+    }
+
+    public void addRoute(HttpMethod method, String path, HttpHandler handler) {
+        String key = method.name() + ":" + path;
+        routes.put(key, new Route(method, path, handler));
     }
 
     public void handleRequest(HttpRequest request, HttpResponse response) throws IOException {
-        String key = request.getMethod().toUpperCase() + ":" + request.getPath();
-        HttpHandler handler = routes.get(key);
+        // Create middleware chain
+        Chain chain = new Chain() {
+            private int index = 0;
 
-        if (handler != null) {
-            handler.handle(request, response);
+            @Override
+            public void next(HttpRequest request, HttpResponse response) throws IOException {
+                if (index < middleware.size()) {
+                    middleware.get(index++).process(request, response, this);
+                } else {
+                    executeHandler(request, response);
+                }
+            }
+        };
+
+        // Start middleware chain
+        chain.next(request, response);
+    }
+
+    private void executeHandler(HttpRequest request, HttpResponse response) throws IOException {
+        String key = request.getMethod() + ":" + request.getPath();
+        Route route = routes.get(key);
+
+        if (route != null) {
+            route.getHandler().handle(request, response);
         } else {
-            response.sendResponse(404, "Not Found");
+            response.sendResponse(HttpStatus.NOT_FOUND, "Not Found");
         }
     }
 }
+