refactor: improve code consistency and maintainability

- Add /api/asteroid/partial/now-playing-inline endpoint for inline text
- Refactor admin.js to use server-side partial (removes 23 lines of JSON/XML parsing)
- Fix hardcoded path in convert-to-docker-path to use *music-library-path* variable
- Consistent with front-page and player refactoring from upstream
- Improves portability and reduces client-side JavaScript complexity

frontend-partials.lisp

@@ -53,3 +53,18 @@
       (api-output `(("status" . "error")
                     ("message" . ,(format nil "Error loading profile: ~a" e)))
                   :status 500))))
+
+(define-api asteroid/partial/now-playing-inline () ()
+  "Get inline text with now playing info (for admin dashboard and widgets)"
+  (handler-case
+    (let ((now-playing-stats (icecast-now-playing *stream-base-url*)))
+      (if now-playing-stats
+          (progn
+            (setf (header "Content-Type") "text/plain")
+            (cdr (assoc :title now-playing-stats)))
+          (progn
+            (setf (header "Content-Type") "text/plain")
+            "Stream Offline")))
+    (error (e)
+      (setf (header "Content-Type") "text/plain")
+      "Error loading stream info")))

static/js/admin.js

@@ -561,35 +561,25 @@ function displayQueueSearchResults(results) {
 // Live stream info update
 async function updateLiveStreamInfo() {
     try {
-        const response = await fetch('/api/asteroid/icecast-status');
-        if (!response.ok) {
+        const response = await fetch('/api/asteroid/partial/now-playing-inline');
+        const contentType = response.headers.get("content-type");
+        
+        if (!contentType.includes('text/plain')) {
+            console.error('Unexpected content type:', contentType);
             return;
         }
         
-        const result = await response.json();
+        const nowPlayingText = await response.text();
+        const nowPlayingEl = document.getElementById('live-now-playing');
         
-        // Handle Radiance API response format
-        const data = result.data || result;
-        
-        // Sources are nested in icestats
-        const sources = data.icestats?.source;
-        
-        if (sources) {
-            const mainStream = Array.isArray(sources) 
-                ? sources.find(s => s.listenurl?.includes('/asteroid.aac') || s.listenurl?.includes('/asteroid.mp3'))
-                : sources;
-            
-            if (mainStream && mainStream.title) {
-                const nowPlayingEl = document.getElementById('live-now-playing');
-                if (nowPlayingEl) {
-                    const parts = mainStream.title.split(' - ');
-                    const artist = parts[0] || 'Unknown';
-                    const track = parts.slice(1).join(' - ') || 'Unknown';
-                    nowPlayingEl.textContent = `${artist} - ${track}`;
-                }
-            }
+        if (nowPlayingEl) {
+            nowPlayingEl.textContent = nowPlayingText;
         }
     } catch (error) {
         console.error('Could not fetch stream info:', error);
+        const nowPlayingEl = document.getElementById('live-now-playing');
+        if (nowPlayingEl) {
+            nowPlayingEl.textContent = 'Error loading stream info';
+        }
     }
 }

stream-control.lisp

@@ -72,8 +72,8 @@
 
 (defun convert-to-docker-path (host-path)
   "Convert host file path to Docker container path"
-  ;; Replace /home/glenn/Projects/Code/asteroid/music/library/ with /app/music/
-  (let ((library-prefix "/home/glenn/Projects/Code/asteroid/music/library/"))
+  ;; Replace the music library path with /app/music/
+  (let ((library-prefix (namestring *music-library-path*)))
     (if (and (stringp host-path) 
              (>= (length host-path) (length library-prefix))
              (string= host-path library-prefix :end1 (length library-prefix)))