On corrige le cas des ical vides

src/agenda_culturel/db_importer.py

@@ -43,6 +43,9 @@ class DBImporterEvents:
         except:
             return (False, "JSON file is not correctly structured")
 
+        if len(structure) == 0:
+            return (True, "")
+
         if "header" not in structure:
             return (False, "JSON is not correctly structured: missing header")
         if "events" not in structure:

src/agenda_culturel/import_tasks/extractor.py

@@ -214,7 +214,7 @@ class Extractor(ABC):
 
     def get_structure(self):
         if len(self.events) == 0:
-            return None
+            return {}
         else:
             return {"header": self.header, "events": self.events}