Enhance backend configuration and error handling: Update CORS settings to allow dynamic origins, improve RabbitMQ connection handling in chat services, and adjust API server host configuration. Refactor environment variables for better flexibility and add fallback mechanisms for WebSocket and chat services. Update frontend environment files for consistent API and WebSocket URLs.

frontend/src/utils/appConfig.js

@@ -0,0 +1,61 @@
+function trimTrailingSlash(value) {
+  return value ? value.replace(/\/$/, '') : value;
+}
+
+function getWindowOrigin() {
+  if (typeof window === 'undefined') {
+    return '';
+  }
+
+  return window.location.origin;
+}
+
+function toWsOrigin(value) {
+  if (!value) {
+    return value;
+  }
+
+  return value
+    .replace(/^http:\/\//i, 'ws://')
+    .replace(/^https:\/\//i, 'wss://');
+}
+
+export function getApiBaseUrl() {
+  return trimTrailingSlash(import.meta.env.VITE_API_BASE_URL || getWindowOrigin() || '');
+}
+
+export function getSocketIoUrl() {
+  return trimTrailingSlash(import.meta.env.VITE_SOCKET_IO_URL || getApiBaseUrl() || getWindowOrigin() || '');
+}
+
+export function getDaemonSocketUrl() {
+  const configured = import.meta.env.VITE_DAEMON_SOCKET;
+  if (configured) {
+    return configured;
+  }
+
+  return toWsOrigin(getWindowOrigin());
+}
+
+export function getPublicBaseUrl() {
+  return trimTrailingSlash(import.meta.env.VITE_PUBLIC_BASE_URL || getWindowOrigin() || 'https://www.your-part.de');
+}
+
+export function getChatWsUrlFromEnv() {
+  const directUrl = import.meta.env.VITE_CHAT_WS_URL;
+  if (directUrl) {
+    return directUrl.trim();
+  }
+
+  const host = import.meta.env.VITE_CHAT_WS_HOST;
+  const port = import.meta.env.VITE_CHAT_WS_PORT;
+  const protocol = import.meta.env.VITE_CHAT_WS_PROTOCOL || (typeof window !== 'undefined' && window.location.protocol === 'https:' ? 'wss' : 'ws');
+
+  if (host || port) {
+    const resolvedHost = host || (typeof window !== 'undefined' ? window.location.hostname : 'localhost');
+    const resolvedPort = port ? `:${port}` : '';
+    return `${protocol}://${resolvedHost}${resolvedPort}`;
+  }
+
+  return toWsOrigin(getWindowOrigin());
+}