Add Jellyfin music library selection support

Introduces backend and frontend functionality to list and select Jellyfin music libraries. Adds API endpoints, updates the client logic, and provides a UI selector for users to choose their preferred Jellyfin music library.

core/jellyfin_client.py

@@ -266,7 +266,61 @@ class JellyfinClient:
                 
         except Exception as e:
             logger.error(f"Error finding music library: {e}")
-    
+
+    def get_available_music_libraries(self) -> List[Dict[str, str]]:
+        """Get list of all available music libraries from Jellyfin"""
+        if not self.ensure_connection() or not self.user_id:
+            return []
+
+        try:
+            views_response = self._make_request(f'/Users/{self.user_id}/Views')
+            if not views_response:
+                return []
+
+            music_libraries = []
+            for view in views_response.get('Items', []):
+                collection_type = (view.get('CollectionType') or '').lower()
+                if collection_type == 'music':
+                    music_libraries.append({
+                        'title': view.get('Name', 'Music'),
+                        'key': str(view['Id'])
+                    })
+
+            logger.debug(f"Found {len(music_libraries)} music libraries")
+            return music_libraries
+        except Exception as e:
+            logger.error(f"Error getting music libraries: {e}")
+            return []
+
+    def set_music_library_by_name(self, library_name: str) -> bool:
+        """Set the active music library by name"""
+        if not self.user_id:
+            return False
+
+        try:
+            views_response = self._make_request(f'/Users/{self.user_id}/Views')
+            if not views_response:
+                return False
+
+            for view in views_response.get('Items', []):
+                collection_type = (view.get('CollectionType') or '').lower()
+                if collection_type == 'music' and view.get('Name') == library_name:
+                    self.music_library_id = view['Id']
+                    logger.info(f"Set music library to: {library_name}")
+
+                    # Store preference in database
+                    from database.music_database import MusicDatabase
+                    db = MusicDatabase()
+                    db.set_preference('jellyfin_music_library', library_name)
+
+                    return True
+
+            logger.warning(f"Music library '{library_name}' not found")
+            return False
+        except Exception as e:
+            logger.error(f"Error setting music library: {e}")
+            return False
+
     def _make_request(self, endpoint: str, params: Optional[Dict[str, Any]] = None) -> Optional[Dict[str, Any]]:
         """Make authenticated request to Jellyfin API"""
         if not self.base_url or not self.api_key:

web_server.py

@@ -2244,6 +2244,58 @@ def select_plex_music_library():
         logger.error(f"Error setting Plex music library: {e}")
         return jsonify({"success": False, "error": str(e)}), 500
 
+@app.route('/api/jellyfin/music-libraries', methods=['GET'])
+def get_jellyfin_music_libraries():
+    """Get list of all available music libraries from Jellyfin"""
+    try:
+        libraries = jellyfin_client.get_available_music_libraries()
+
+        # Get currently selected library
+        from database.music_database import MusicDatabase
+        db = MusicDatabase()
+        selected_library = db.get_preference('jellyfin_music_library')
+
+        # Get the currently active library name (match Plex behavior)
+        current_library = None
+        if jellyfin_client.music_library_id:
+            # Look up library name from ID
+            for lib in libraries:
+                if lib['key'] == jellyfin_client.music_library_id:
+                    current_library = lib['title']
+                    break
+
+        return jsonify({
+            "success": True,
+            "libraries": libraries,
+            "selected": selected_library,
+            "current": current_library
+        })
+    except Exception as e:
+        logger.error(f"Error getting Jellyfin music libraries: {e}")
+        return jsonify({"success": False, "error": str(e)}), 500
+
+@app.route('/api/jellyfin/select-music-library', methods=['POST'])
+def select_jellyfin_music_library():
+    """Set the active Jellyfin music library"""
+    try:
+        data = request.get_json()
+        library_name = data.get('library_name')
+
+        if not library_name:
+            return jsonify({"success": False, "error": "No library name provided"}), 400
+
+        success = jellyfin_client.set_music_library_by_name(library_name)
+
+        if success:
+            add_activity_item("📚", "Library Selected", f"Jellyfin music library set to: {library_name}", "Now")
+            return jsonify({"success": True, "message": f"Music library set to: {library_name}"})
+        else:
+            return jsonify({"success": False, "error": f"Library '{library_name}' not found"}), 404
+
+    except Exception as e:
+        logger.error(f"Error setting Jellyfin music library: {e}")
+        return jsonify({"success": False, "error": str(e)}), 500
+
 # ===============================
 # == QUALITY PROFILE API       ==
 # ===============================

webui/index.html

@@ -2353,6 +2353,14 @@
                                         <button class="detect-button" onclick="autoDetectJellyfin()">Auto-detect</button>
                                         <button class="test-button" onclick="testConnection('jellyfin')">Test</button>
                                     </div>
+
+                                    <div class="form-group" id="jellyfin-library-selector-container" style="display: none;">
+                                        <label>Music Library</label>
+                                        <select id="jellyfin-music-library" onchange="selectJellyfinLibrary()">
+                                            <option value="">Select Library</option>
+                                        </select>
+                                        <small>Select which music library to use (doesn't affect config file)</small>
+                                    </div>
                                 </div>
 
                                 <!-- Navidrome Settings -->

webui/static/script.js

@@ -1504,6 +1504,11 @@ async function loadSettingsData() {
             loadPlexMusicLibraries();
         }
 
+        // Load Jellyfin music libraries if Jellyfin is the active server
+        if (activeServer === 'jellyfin') {
+            loadJellyfinMusicLibraries();
+        }
+
         // Populate Soulseek settings
         document.getElementById('soulseek-url').value = settings.soulseek?.slskd_url || '';
         document.getElementById('soulseek-api-key').value = settings.soulseek?.api_key || '';
@@ -1576,6 +1581,11 @@ function toggleServer(serverType) {
     if (serverType === 'plex') {
         loadPlexMusicLibraries();
     }
+
+    // Load Jellyfin music libraries when switching to Jellyfin
+    if (serverType === 'jellyfin') {
+        loadJellyfinMusicLibraries();
+    }
 }
 
 // ===============================
@@ -1908,9 +1918,16 @@ async function testConnection(service) {
         });
         
         const result = await response.json();
-        
+
         if (result.success) {
             showToast(`${service} connection successful`, 'success');
+
+            // Load music libraries after successful connection
+            if (service === 'plex') {
+                loadPlexMusicLibraries();
+            } else if (service === 'jellyfin') {
+                loadJellyfinMusicLibraries();
+            }
         } else {
             showToast(`${service} connection failed: ${result.error}`, 'error');
         }
@@ -26667,6 +26684,77 @@ async function selectPlexLibrary() {
     }
 }
 
+// ============ Jellyfin Music Library Selection ============
+
+async function loadJellyfinMusicLibraries() {
+    try {
+        const response = await fetch('/api/jellyfin/music-libraries');
+        const data = await response.json();
+
+        if (data.success && data.libraries && data.libraries.length > 0) {
+            const selector = document.getElementById('jellyfin-music-library');
+            const container = document.getElementById('jellyfin-library-selector-container');
+
+            // Clear existing options
+            selector.innerHTML = '';
+
+            // Add options for each library
+            data.libraries.forEach(library => {
+                const option = document.createElement('option');
+                option.value = library.title;
+                option.textContent = library.title;
+
+                // Mark the currently selected library
+                if (library.title === data.current || library.title === data.selected) {
+                    option.selected = true;
+                }
+
+                selector.appendChild(option);
+            });
+
+            // Show the container
+            container.style.display = 'block';
+        } else {
+            // Hide if no libraries found or not connected
+            document.getElementById('jellyfin-library-selector-container').style.display = 'none';
+        }
+    } catch (error) {
+        console.error('Error loading Jellyfin music libraries:', error);
+        document.getElementById('jellyfin-library-selector-container').style.display = 'none';
+    }
+}
+
+async function selectJellyfinLibrary() {
+    const selector = document.getElementById('jellyfin-music-library');
+    const selectedLibrary = selector.value;
+
+    if (!selectedLibrary) return;
+
+    try {
+        const response = await fetch('/api/jellyfin/select-music-library', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json'
+            },
+            body: JSON.stringify({
+                library_name: selectedLibrary
+            })
+        });
+
+        const data = await response.json();
+
+        if (data.success) {
+            console.log(`Jellyfin music library switched to: ${selectedLibrary}`);
+        } else {
+            console.error('Failed to switch library:', data.error);
+            alert(`Failed to switch library: ${data.error}`);
+        }
+    } catch (error) {
+        console.error('Error selecting Jellyfin library:', error);
+        alert('Error selecting library. Please try again.');
+    }
+}
+
 // ============================================
 // == DISCOVER PAGE                          ==
 // ============================================