1 files changed, 21 insertions, 0 deletions
diff --git a/src/Wordle.hs b/src/Wordle.hs
new file mode 100644
index 0000000..d722ffa
--- /dev/null
+++ b/src/Wordle.hs
@@ -0,0 +1,21 @@
+{-# LANGUAGE ExistentialQuantification, RankNTypes, GADTs #-}
+module Wordle where
+
+import Data.Set (Set)
+import qualified Data.Set as Set
+
+data Environment = Environment {
+  wordLength :: Int,
+  wordList :: Set String
+}
+
+newtype Hints = Hints [(Char, Hint)]
+
+data Hint = Correct | Contains | DoesNotContain
+
+data AI where
+  AI :: forall s. {
+    internalState :: s,
+    guessWord :: s -> Environment -> IO String,
+    updateHints :: s -> Hints -> IO s
+  } -> AI