fix : play board optimization

src/sections/analysis/hooks/useCurrentPosition.ts

@@ -0,0 +1,62 @@
+import {
+  boardAtom,
+  currentPositionAtom,
+  engineDepthAtom,
+  engineMultiPvAtom,
+  gameAtom,
+  gameEvalAtom,
+} from "@/sections/analysis/states";
+import { CurrentPosition, PositionEval } from "@/types/eval";
+import { useAtom, useAtomValue } from "jotai";
+import { useEffect } from "react";
+import { useEngine } from "../../../hooks/useEngine";
+import { EngineName } from "@/types/enums";
+
+export const useCurrentPosition = (engineName?: EngineName) => {
+  const [currentPosition, setCurrentPosition] = useAtom(currentPositionAtom);
+  const engine = useEngine(engineName);
+  const gameEval = useAtomValue(gameEvalAtom);
+  const game = useAtomValue(gameAtom);
+  const board = useAtomValue(boardAtom);
+  const depth = useAtomValue(engineDepthAtom);
+  const multiPv = useAtomValue(engineMultiPvAtom);
+
+  useEffect(() => {
+    const position: CurrentPosition = {
+      lastMove: board.history({ verbose: true }).at(-1),
+    };
+
+    if (gameEval) {
+      const boardHistory = board.history();
+      const gameHistory = game.history();
+
+      if (
+        boardHistory.length <= gameHistory.length &&
+        gameHistory.slice(0, boardHistory.length).join() === boardHistory.join()
+      ) {
+        const evalIndex = board.history().length;
+
+        position.eval = gameEval.positions[evalIndex];
+        position.lastEval =
+          evalIndex > 0 ? gameEval.positions[evalIndex - 1] : undefined;
+      }
+    }
+
+    if (!position.eval && engine?.isReady()) {
+      const setPartialEval = (positionEval: PositionEval) => {
+        setCurrentPosition({ ...position, eval: positionEval });
+      };
+
+      engine.evaluatePositionWithUpdate({
+        fen: board.fen(),
+        depth,
+        multiPv,
+        setPartialEval,
+      });
+    }
+
+    setCurrentPosition(position);
+  }, [gameEval, board, game, engine, depth, multiPv, setCurrentPosition]);
+
+  return currentPosition;
+};

src/sections/analysis/reviewPanelBody/index.tsx

@@ -3,7 +3,7 @@ import { Grid, List, Typography } from "@mui/material";
 import { useAtomValue } from "jotai";
 import { boardAtom, engineMultiPvAtom, gameAtom } from "../states";
 import LineEvaluation from "./lineEvaluation";
-import { useCurrentPosition } from "@/hooks/useCurrentPosition";
+import { useCurrentPosition } from "../hooks/useCurrentPosition";
 import { LineEval } from "@/types/eval";
 import { EngineName } from "@/types/enums";
 import EngineSettingsButton from "@/sections/engineSettings/engineSettingsButton";

src/sections/analysis/reviewPanelBody/opening.tsx

@@ -1,4 +1,4 @@
-import { useCurrentPosition } from "@/hooks/useCurrentPosition";
+import { useCurrentPosition } from "../hooks/useCurrentPosition";
 import { Grid, Typography } from "@mui/material";
 
 export default function Opening() {