Initial version upload

core/Controller.php

@@ -0,0 +1,41 @@
+<?php
+
+class Controller {
+    protected function view(string $viewName, array $data = []): void {
+        extract($data);
+        
+        $viewPath = BASE_PATH . '/views/' . $viewName . '.php';
+        
+        if (!file_exists($viewPath)) {
+            die("View not found: $viewName");
+        }
+        
+        require_once $viewPath;
+    }
+    
+    protected function redirect(string $path): void {
+        // Add base URL if path doesn't already include it
+        $url = BASE_URL . $path;
+        header('Location: ' . $url);
+        exit;
+    }
+    
+    protected function json(mixed $data, int $statusCode = 200): void {
+        http_response_code($statusCode);
+        header('Content-Type: application/json');
+        echo json_encode($data);
+        exit;
+    }
+    
+    protected function requireAuth(): void {
+        if (!isset($_SESSION['user_id'])) {
+            $this->redirect('/login');
+        }
+    }
+    
+    protected function requireSetup(): void {
+        if (!Database::isInitialized()) {
+            $this->redirect('/setup');
+        }
+    }
+}