Update web/core/context_processors.py

web/core/context_processors.py

@@ -1,8 +1,13 @@
+# core/context_processors.py
 from pathlib import Path
-from .models_ann import Announcement, AnnouncementDismissal
-from django.contrib.staticfiles import finders
 import os
 
+from django.contrib.staticfiles import finders
+from django.contrib.staticfiles.storage import staticfiles_storage
+
+from .models_ann import Announcement, AnnouncementDismissal
+
+
 def app_version(request):
     version_file = Path(__file__).resolve().parent.parent / "version.txt"
     try:
@@ -12,19 +17,40 @@ def app_version(request):
         version = "v0.0.0"
     return {"APP_VERSION": version}
 
+
 def available_themes(request):
-    """Returns ['midnight','dawn','forest','sandstone', ...] by scanning /static/themes/*.css"""
-    names = []
-    # Find the absolute path for the 'themes' directory via staticfiles finders
-    # We look for any 'themes' folder that exists and aggregate CSS files.
+    """
+    Return a list of theme names by scanning /static/themes/*.css.
+    Works in development (finders) and production (staticfiles_storage).
+    Never returns an empty list.
+    """
+    names = set()
+
+    # A) Dev/app static: scan all registered static finders
+    try:
         for finder in finders.get_finders():
             for path, storage in finder.list(['themes']):
+                # e.g. "themes/midnight.css"
                 if path.startswith('themes/') and path.endswith('.css'):
-                base = os.path.basename(path)[:-4]  # strip .css
-                names.append(base)
-    # stable order
-    names = sorted(set(names))
-    return {'available_themes': names}
+                    names.add(os.path.basename(path)[:-4])  # strip ".css"
+    except Exception:
+        pass
+
+    # B) Prod/collected: scan STATIC_ROOT via staticfiles_storage
+    try:
+        dirs, files = staticfiles_storage.listdir('themes')
+        for f in files:
+            if f.endswith('.css'):
+                names.add(f[:-4])
+    except Exception:
+        pass
+
+    # C) Safety net: default themes so the selector is never empty
+    if not names:
+        names.update({'midnight', 'dawn', 'forest', 'sandstone'})
+
+    return {'available_themes': sorted(names)}
+
 
 def pending_announcement(request):
     """