feat: add sync schedule editing and improve Spotify rate limit handling

Renamed Active Playlists to Injected Playlists. Added sync schedule column with inline edit button. Added endpoint to update playlist sync schedules. Improved error handling for Spotify rate limits with user-friendly messages.

allstarr/Controllers/AdminController.cs

@@ -259,6 +259,7 @@ public class AdminController : ControllerBase
                 ["id"] = config.Id,
                 ["jellyfinId"] = config.JellyfinId,
                 ["localTracksPosition"] = config.LocalTracksPosition.ToString(),
+                ["syncSchedule"] = config.SyncSchedule ?? "0 8 * * 1",
                 ["trackCount"] = 0,
                 ["localTracks"] = 0,
                 ["externalTracks"] = 0,
@@ -2311,6 +2312,60 @@ public class AdminController : ControllerBase
         return await RemovePlaylist(decodedName);
     }
     
+    /// <summary>
+    /// Update playlist sync schedule
+    /// </summary>
+    [HttpPut("playlists/{name}/schedule")]
+    public async Task<IActionResult> UpdatePlaylistSchedule(string name, [FromBody] UpdateScheduleRequest request)
+    {
+        var decodedName = Uri.UnescapeDataString(name);
+        
+        if (string.IsNullOrWhiteSpace(request.SyncSchedule))
+        {
+            return BadRequest(new { error = "SyncSchedule is required" });
+        }
+        
+        // Basic cron validation
+        var cronParts = request.SyncSchedule.Trim().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+        if (cronParts.Length != 5)
+        {
+            return BadRequest(new { error = "Invalid cron format. Expected: minute hour day month dayofweek" });
+        }
+        
+        // Read current playlists
+        var currentPlaylists = await ReadPlaylistsFromEnvFile();
+        var playlist = currentPlaylists.FirstOrDefault(p => p.Name.Equals(decodedName, StringComparison.OrdinalIgnoreCase));
+        
+        if (playlist == null)
+        {
+            return NotFound(new { error = $"Playlist '{decodedName}' not found" });
+        }
+        
+        // Update the schedule
+        playlist.SyncSchedule = request.SyncSchedule.Trim();
+        
+        // Save back to .env
+        var playlistsJson = JsonSerializer.Serialize(
+            currentPlaylists.Select(p => new[] { 
+                p.Name, 
+                p.Id, 
+                p.JellyfinId, 
+                p.LocalTracksPosition.ToString().ToLower(),
+                p.SyncSchedule ?? "0 8 * * 1"
+            }).ToArray()
+        );
+        
+        var updateRequest = new ConfigUpdateRequest
+        {
+            Updates = new Dictionary<string, string>
+            {
+                ["SPOTIFY_IMPORT_PLAYLISTS"] = playlistsJson
+            }
+        };
+        
+        return await UpdateConfig(updateRequest);
+    }
+    
     private string GetJellyfinAuthHeader()
     {
         return $"MediaBrowser Client=\"Allstarr\", Device=\"Server\", DeviceId=\"allstarr-admin\", Version=\"1.0.0\", Token=\"{_jellyfinSettings.ApiKey}\"";
@@ -3417,6 +3472,11 @@ public class LinkPlaylistRequest
     public string SyncSchedule { get; set; } = "0 8 * * 1"; // Default: 8 AM every Monday
 }
 
+public class UpdateScheduleRequest
+{
+    public string SyncSchedule { get; set; } = string.Empty;
+}
+
     /// <summary>
     /// GET /api/admin/downloads
     /// Lists all downloaded files in the KEPT folder only (favorited tracks)

allstarr/wwwroot/index.html

@@ -537,7 +537,7 @@
         <div class="tabs">
             <div class="tab active" data-tab="dashboard">Dashboard</div>
             <div class="tab" data-tab="jellyfin-playlists">Link Playlists</div>
-            <div class="tab" data-tab="playlists">Active Playlists</div>
+            <div class="tab" data-tab="playlists">Injected Playlists</div>
             <div class="tab" data-tab="config">Configuration</div>
             <div class="tab" data-tab="endpoints">API Analytics</div>
         </div>
@@ -652,7 +652,7 @@
             
             <div class="card">
                 <h2>
-                    Active Spotify Playlists
+                    Injected Spotify Playlists
                     <div class="actions">
                         <button onclick="matchAllPlaylists()" title="Match tracks for all playlists against your local library and external providers. This may take several minutes.">Match All Tracks</button>
                         <button onclick="refreshPlaylists()" title="Fetch the latest playlist data from Spotify without re-matching tracks.">Refresh All</button>
@@ -660,13 +660,14 @@
                     </div>
                 </h2>
                 <p style="color: var(--text-secondary); margin-bottom: 12px;">
-                    These are the Spotify playlists currently being monitored and filled with tracks from your music service.
+                    These are the Spotify playlists currently being injected into Jellyfin with tracks from your music service.
                 </p>
                 <table class="playlist-table">
                     <thead>
                         <tr>
                             <th>Name</th>
                             <th>Spotify ID</th>
+                            <th>Sync Schedule</th>
                             <th>Tracks</th>
                             <th>Completion</th>
                             <th>Cache Age</th>
@@ -675,7 +676,7 @@
                     </thead>
                     <tbody id="playlist-table-body">
                         <tr>
-                            <td colspan="6" class="loading">
+                            <td colspan="7" class="loading">
                                 <span class="spinner"></span> Loading playlists...
                             </td>
                         </tr>
@@ -1545,7 +1546,7 @@
                 
                 if (data.playlists.length === 0) {
                     if (!silent) {
-                        tbody.innerHTML = '<tr><td colspan="6" style="text-align:center;color:var(--text-secondary);padding:40px;">No playlists configured. Link playlists from the Jellyfin Playlists tab.</td></tr>';
+                        tbody.innerHTML = '<tr><td colspan="7" style="text-align:center;color:var(--text-secondary);padding:40px;">No playlists configured. Link playlists from the Jellyfin Playlists tab.</td></tr>';
                     }
                     return;
                 }
@@ -1599,10 +1600,16 @@
                     // Debug logging
                     console.log(`Progress bar for ${p.name}: local=${localPct}%, external=${externalPct}%, missing=${missingPct}%, total=${completionPct}%`);
                     
+                    const syncSchedule = p.syncSchedule || '0 8 * * 1';
+                    
                     return `
                         <tr>
                             <td><strong>${escapeHtml(p.name)}</strong></td>
                             <td style="font-family:monospace;font-size:0.85rem;color:var(--text-secondary);">${p.id || '-'}</td>
+                            <td style="font-family:monospace;font-size:0.85rem;">
+                                ${escapeHtml(syncSchedule)}
+                                <button onclick="editPlaylistSchedule('${escapeJs(p.name)}', '${escapeJs(syncSchedule)}')" style="margin-left:4px;font-size:0.75rem;padding:2px 6px;">Edit</button>
+                            </td>
                             <td>${statsHtml}${breakdown}</td>
                             <td>
                                 <div style="display:flex;align-items:center;gap:8px;">
@@ -2025,7 +2032,14 @@
                 const res = await fetch('/api/admin/spotify/user-playlists');
                 if (!res.ok) {
                     const error = await res.json();
-                    console.error('Failed to fetch Spotify playlists:', error);
+                    console.error('Failed to fetch Spotify playlists:', res.status, error);
+                    
+                    // Show user-friendly error message
+                    if (res.status === 429) {
+                        showToast('Spotify rate limit reached. Please wait a moment and try again.', 'warning', 5000);
+                    } else if (res.status === 401) {
+                        showToast('Spotify authentication failed. Check your sp_dc cookie.', 'error', 5000);
+                    }
                     return [];
                 }
                 const data = await res.json();
@@ -2563,6 +2577,39 @@
             }
         }
         
+        async function editPlaylistSchedule(playlistName, currentSchedule) {
+            const newSchedule = prompt(`Edit sync schedule for "${playlistName}"\n\nCron format: minute hour day month dayofweek\nExamples:\n• 0 8 * * 1 = Monday 8 AM\n• 0 6 * * * = Daily 6 AM\n• 0 20 * * 5 = Friday 8 PM`, currentSchedule);
+            
+            if (!newSchedule || newSchedule === currentSchedule) return;
+            
+            // Validate cron format
+            const cronParts = newSchedule.trim().split(/\s+/);
+            if (cronParts.length !== 5) {
+                showToast('Invalid cron format. Expected: minute hour day month dayofweek', 'error');
+                return;
+            }
+            
+            try {
+                const res = await fetch(`/api/admin/playlists/${encodeURIComponent(playlistName)}/schedule`, {
+                    method: 'PUT',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({ syncSchedule: newSchedule.trim() })
+                });
+                
+                if (res.ok) {
+                    showToast('Sync schedule updated!', 'success');
+                    showRestartBanner();
+                    fetchPlaylists();
+                } else {
+                    const error = await res.json();
+                    showToast(error.error || 'Failed to update schedule', 'error');
+                }
+            } catch (error) {
+                console.error('Failed to update schedule:', error);
+                showToast('Failed to update schedule', 'error');
+            }
+        }
+        
         async function removePlaylist(name) {
             if (!confirm(`Remove playlist "${name}"?`)) return;