chore: lots of changes

src/Framework/ErrorHandling/ErrorHandler.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace App\Framework\ErrorHandling;
+
+use App\Framework\Http\Headers;
+use App\Framework\Http\HttpResponse;
+use App\Framework\Http\ResponseEmitter;
+use App\Framework\Http\Status;
+use JetBrains\PhpStorm\NoReturn;
+use Throwable;
+
+final class ErrorHandler
+{
+    public static function register(ResponseEmitter $emitter): void
+    {
+        set_exception_handler(function (Throwable $exception) use ($emitter) {
+            self::handleException($exception, $emitter);
+        });
+
+        set_error_handler(function (int $errno, string $errstr, string $errfile, int $errline) use ($emitter) {
+            $exception = new \ErrorException($errstr, 0, $errno, $errfile, $errline);
+            self::handleException($exception, $emitter);
+        });
+
+        register_shutdown_function(function () use ($emitter) {
+            $error = error_get_last();
+            if ($error) {
+                $exception = new \ErrorException(
+                    $error['message'],
+                    0,
+                    $error['type'],
+                    $error['file'],
+                    $error['line']
+                );
+                self::handleException($exception, $emitter);
+            }
+        });
+    }
+
+    #[NoReturn]
+    private static function handleException(Throwable $e, ResponseEmitter $emitter): void
+    {
+        $isDebug = $_ENV['APP_DEBUG'] ?? false;
+
+        $status = Status::INTERNAL_SERVER_ERROR ?? 500;
+        $message = $isDebug
+            ? sprintf("Fehler: %s in %s:%d\n\n%s", $e->getMessage(), $e->getFile(), $e->getLine(), $e->getTraceAsString())
+            : "Es ist ein interner Fehler aufgetreten.";
+
+        $headers = new Headers()->with('Content-Type', 'text/plain; charset=utf-8');
+
+        $response = new HttpResponse(
+            status: $status,
+            headers: $headers,
+            body: $message
+        );
+
+        // Sende die Fehlermeldung (so früh wie möglich!)
+        $emitter->emit($response);
+
+        exit(1);
+    }
+}