From 61d17a6c5699b7220ec6063dbbb03cd9ec224369 Mon Sep 17 00:00:00 2001
From: GuillaumeSD <gsd.lfny@gmail.com>
Date: Sat, 6 Apr 2024 03:20:02 +0200
Subject: [PATCH] fix : copyGame throws on empty game

---
 src/hooks/useChessActions.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/hooks/useChessActions.ts b/src/hooks/useChessActions.ts
index 07eb18c..fc21ae6 100644
--- a/src/hooks/useChessActions.ts
+++ b/src/hooks/useChessActions.ts
@@ -37,7 +37,11 @@ export const useChessActions = (chessAtom: PrimitiveAtom<Chess>) => {
 
   const copyGame = useCallback(() => {
     const newGame = new Chess();
-    newGame.loadPgn(game.pgn());
+    if (game.history().length > 0) {
+      newGame.loadPgn(game.pgn());
+    } else {
+      newGame.load(game.fen());
+    }
     return newGame;
   }, [game]);
 
@@ -65,13 +69,13 @@ export const useChessActions = (chessAtom: PrimitiveAtom<Chess>) => {
   }, [copyGame, setGame]);
 
   const goToMove = useCallback(
-    (moveIdx: number, game: Chess) => {
+    (moveIdx: number, fullGame: Chess) => {
       if (moveIdx < 0) return;
 
       const newGame = new Chess();
-      newGame.loadPgn(game.pgn());
+      newGame.loadPgn(fullGame.pgn());
 
-      const movesNb = game.history().length;
+      const movesNb = fullGame.history().length;
       if (moveIdx > movesNb) return;
 
       let lastMove: Move | null = null;