changes

app/document_generator.py

@@ -287,7 +287,7 @@ class DocumentGenerator:
                     return str(val)
             if fmt_type == "number_to_words":
                 try:
-                    return num2words(val, lang=fmt.get("lang", "en"))
+                    return num2words(val, lang=fmt.get("lang", "vi"))
                 except Exception:
                     return str(val)
             if fmt_type == "conditional":
@@ -397,16 +397,37 @@ class DocumentGenerator:
         return placeholders
 
     def _parse_format_args(self, args_string):
-        """Parses a string like 'lang:vi, type:number_to_words' into a dictionary."""
         if not args_string:
             return {}
-        format_config = {}
-        args = args_string.split(',')
-        for arg in args:
-            if ':' in arg:
-                key, value = arg.split(':', 1)
-                format_config[key.strip()] = value.strip()
-        return format_config
+
+        parts = [p.strip() for p in args_string.split(',')]
+        root = {}
+        current = root
+
+        for part in parts:
+            if ':' not in part:
+                continue
+
+            key, value = part.split(':', 1)
+            key = key.strip()
+            value = value.strip()
+
+            if key == "next":
+                # nếu next chưa tồn tại thì tạo
+                if "next" not in current or not isinstance(current["next"], dict):
+                    current["next"] = {}
+                current = current["next"]
+
+                # hỗ trợ next:type:number_to_words
+                if ':' in value:
+                    sub_key, sub_val = value.split(':', 1)
+                    current[sub_key.strip()] = sub_val.strip()
+            else:
+                current[key] = value
+
+        return root
+
+
 
     def prepare_replacements(self, doc):
         """