split bill

lib/common/extension/string_extension.dart

@@ -39,12 +39,23 @@ extension StringX on String {
 
   VoidType toVoidType() {
     switch (this) {
-      case 'all':
+      case 'ALL':
         return VoidType.all;
-      case 'item':
+      case 'ITEM':
         return VoidType.item;
       default:
         return VoidType.unknown;
     }
   }
+
+  SplitType toSplitType() {
+    switch (this) {
+      case 'AMOUNT':
+        return SplitType.amount;
+      case 'ITEM':
+        return SplitType.item;
+      default:
+        return SplitType.unknown;
+    }
+  }
 }