Aug 25 - Fix inspection photo lost

app/api/photos.py

@@ -76,16 +76,27 @@ def upload_photo():
     if user.role not in _ALLOWED_ROLES:
         return api_error('Access denied', 403)
 
+    # Every rejection below is logged at WARNING with the user. Only SUCCESSES
+    # were logged before, so when an inspector's photos failed repeatedly there
+    # was nothing server-side to explain why — and a photo that exhausts its
+    # upload attempts costs the inspection its evidence (see the iPad's
+    # PendingPhoto.lastUploadError for the device half of this).
     if 'file' not in request.files:
+        logger.warning('API PHOTOS | rejected | reason=no_file_part | user=%s',
+                       user.username)
         return api_error('No file provided', 400)
 
     file_obj    = request.files['file']
     entity_type = request.form.get('entity_type', 'inspection')
 
     if not file_obj or not file_obj.filename:
+        logger.warning('API PHOTOS | rejected | reason=empty_file | user=%s',
+                       user.username)
         return api_error('Empty file', 400)
 
     if not _allowed_file(file_obj.filename):
+        logger.warning('API PHOTOS | rejected | reason=bad_extension | file=%r | user=%s',
+                       file_obj.filename, user.username)
         return api_error(
             f'File type not allowed. Accepted: {", ".join(sorted(_ALLOWED_EXTENSIONS))}',
             400
@@ -115,7 +126,16 @@ def upload_photo():
     # Write via the active storage backend (local disk or R2). Key format
     # 'uploads/<subfolder>/<uuid>.<ext>' is unchanged across backends.
     from app.utils import storage
+    try:
         server_path = storage.save(file_obj, subfolder)
+    except Exception as exc:
+        # A storage failure is the most likely cause of a REPEATED upload
+        # failure (disk full, R2 credentials/quota). Name it explicitly —
+        # otherwise it surfaces only as a generic 500 with no link to the
+        # inspector who is losing evidence photos.
+        logger.error('API PHOTOS | STORAGE WRITE FAILED | user=%s | entity_type=%s | '
+                     'subfolder=%s | error=%s', user.username, entity_type, subfolder, exc)
+        return api_error('Could not store the photo. Please retry.', 500)
 
     logger.info(
         'API PHOTOS | uploaded | entity_type=%s | path=%s | user=%s | '