Fix stream URL detection for custom domains; add listener_url config

config.example.json

@@ -12,5 +12,8 @@
     "stream_bitrate": "192k",
     "max_upload_mb": 500,
     "cors_origins": "*",
-    "debug": false
+    "debug": false,
+
+    "_comment_listener_url": "Public URL of the listener page. Shown in DJ panel as the shareable stream link. Leave empty to auto-detect.",
+    "listener_url": ""
 }

script.js

@@ -1802,11 +1802,28 @@ window.addEventListener('DOMContentLoaded', () => {
     updateManualGlow('B', settings.glowB);
 
     // Set stream URL in the streaming panel
-    const streamUrl = window.location.hostname.startsWith('dj.')
-        ? `${window.location.protocol}//music.${window.location.hostname.split('.').slice(1).join('.')}`
-        : `${window.location.protocol}//${window.location.hostname}:5001`;
+    // Priority: server-configured listener_url > auto-detect > fallback
     const streamInput = document.getElementById('stream-url');
-    if (streamInput) streamInput.value = streamUrl;
+    if (streamInput) {
+        const _autoDetectListenerUrl = () => {
+            const host = window.location.hostname;
+            // dj.techy.music → techy.music (strip leading "dj.")
+            // dj.anything.com → anything.com
+            if (host.startsWith('dj.')) {
+                return `${window.location.protocol}//${host.slice(3)}`;
+            }
+            return `${window.location.protocol}//${host}:5001`;
+        };
+        // Try server-configured URL first
+        fetch('/client_config')
+            .then(r => r.json())
+            .then(cfg => {
+                streamInput.value = cfg.listener_url || _autoDetectListenerUrl();
+            })
+            .catch(() => {
+                streamInput.value = _autoDetectListenerUrl();
+            });
+    }
 });
 
 // ========== LIVE STREAMING FUNCTIONALITY ==========

server.py

@@ -42,6 +42,7 @@ CONFIG_SECRET = (CONFIG.get('secret_key') or '').strip() or 'dj_panel_secret'
 CONFIG_CORS = CONFIG.get('cors_origins', '*')
 CONFIG_MAX_UPLOAD_MB = int(CONFIG.get('max_upload_mb') or 500)
 CONFIG_DEBUG = bool(CONFIG.get('debug', False))
+CONFIG_LISTENER_URL = (CONFIG.get('listener_url') or '').strip()
 
 DJ_PANEL_PASSWORD = (CONFIG.get('dj_panel_password') or '').strip()
 DJ_AUTH_ENABLED = bool(DJ_PANEL_PASSWORD)
@@ -605,6 +606,12 @@ def dj_logout():
         302,
         {'Location': '/login'}
     )
+
+@dj_app.route('/client_config')
+def client_config():
+    """Expose server-side config values needed by the DJ panel client."""
+    return jsonify({'listener_url': CONFIG_LISTENER_URL})
+
 dj_socketio = SocketIO(
     dj_app, 
     cors_allowed_origins=CONFIG_CORS,