1 files changed, 19 insertions, 0 deletions
diff --git a/src/Language/Fiddle/Internal/Scopes.hs b/src/Language/Fiddle/Internal/Scopes.hs
index eea4c6f..ac6f7d1 100644
--- a/src/Language/Fiddle/Internal/Scopes.hs
+++ b/src/Language/Fiddle/Internal/Scopes.hs
@@ -3,6 +3,8 @@
 module Language.Fiddle.Internal.Scopes where
 
 import Control.Monad (forM)
+import Data.Aeson
+import Data.Aeson.Key
 import Data.List (inits, intercalate)
 import Data.List.NonEmpty (NonEmpty (..), prependList)
 import Data.Map (Map)
@@ -64,6 +66,9 @@ upsertScope (s :| (a : as)) v (Scope ss sv) =
       (replaced, subscope') = upsertScope (a :| as) v subscope
    in (replaced, Scope (Map.insert s subscope' ss) sv)
 
+insertScope :: (Ord k) => NonEmpty k -> t -> Scope k t -> Scope k t
+insertScope p s = snd . upsertScope p s
+
 -- insertScope :: (Ord k) => NonEmpty k -> t -> Scope k t -> Scope k t
 -- insertScope a b = snd . upsertScope a b
 
@@ -108,3 +113,17 @@ lookupScopeWithPath (ScopePath current others) key scope =
         case lookupScope (prependList prefix key) scope of
           Just s -> [(prependList prefix key, s)]
           Nothing -> []
+
+instance (ToJSONKey k, ToJSON v, Ord k) => ToJSON (Scope k v) where
+  toJSON (Scope subScopes scopeValues) =
+    object
+      [ fromString "subScopes" .= toJSON subScopes,
+        fromString "scopeValues" .= toJSON scopeValues
+      ]
+
+instance (FromJSONKey k, FromJSON v, Ord k) => FromJSON (Scope k v) where
+  parseJSON (Object v) =
+    Scope
+      <$> v .: fromString "subScopes"
+      <*> v .: fromString "scopeValues"
+  parseJSON _ = fail "Expected an object for Scope"