fix : improve engine workers management

src/sections/analysis/hooks/useCurrentPosition.ts

@@ -10,15 +10,13 @@ import {
 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";
 import { getEvaluateGameParams } from "@/lib/chess";
 import { getMovesClassification } from "@/lib/engine/helpers/moveClassification";
 import { openings } from "@/data/openings";
+import { UciEngine } from "@/lib/engine/uciEngine";
 
-export const useCurrentPosition = (engineName?: EngineName) => {
+export const useCurrentPosition = (engine: UciEngine | null) => {
   const [currentPosition, setCurrentPosition] = useAtom(currentPositionAtom);
-  const engine = useEngine(engineName, 1);
   const gameEval = useAtomValue(gameEvalAtom);
   const game = useAtomValue(gameAtom);
   const board = useAtomValue(boardAtom);
@@ -77,7 +75,7 @@ export const useCurrentPosition = (engineName?: EngineName) => {
     if (
       !position.eval &&
       engine?.getIsReady() &&
-      engineName &&
+      engine.name &&
       !board.isCheckmate() &&
       !board.isStalemate()
     ) {
@@ -85,12 +83,13 @@ export const useCurrentPosition = (engineName?: EngineName) => {
         fen: string,
         setPartialEval?: (positionEval: PositionEval) => void
       ) => {
-        if (!engine?.getIsReady() || !engineName)
+        if (!engine.getIsReady()) {
           throw new Error("Engine not ready");
+        }
         const savedEval = savedEvals[fen];
         if (
           savedEval &&
-          savedEval.engine === engineName &&
+          savedEval.engine === engine.name &&
           (savedEval.lines?.length ?? 0) >= multiPv &&
           (savedEval.lines[0].depth ?? 0) >= depth
         ) {
@@ -111,7 +110,7 @@ export const useCurrentPosition = (engineName?: EngineName) => {
 
         setSavedEvals((prev) => ({
           ...prev,
-          [fen]: { ...rawPositionEval, engine: engineName },
+          [fen]: { ...rawPositionEval, engine: engine.name },
         }));
 
         return rawPositionEval;
@@ -165,7 +164,9 @@ export const useCurrentPosition = (engineName?: EngineName) => {
     }
 
     return () => {
-      engine?.stopSearch();
+      if (engine?.getIsReady()) {
+        engine?.stopSearch();
+      }
     };
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [gameEval, board, game, engine, depth, multiPv]);

src/sections/analysis/panelBody/analysisTab/index.tsx

@@ -7,13 +7,12 @@ import {
 import { useAtomValue } from "jotai";
 import {
   boardAtom,
+  currentPositionAtom,
   engineMultiPvAtom,
-  engineNameAtom,
   gameAtom,
   gameEvalAtom,
 } from "../../states";
 import LineEvaluation from "./lineEvaluation";
-import { useCurrentPosition } from "../../hooks/useCurrentPosition";
 import { LineEval } from "@/types/eval";
 import PlayersMetric from "./playersMetric";
 import MoveInfo from "./moveInfo";
@@ -21,8 +20,7 @@ import Opening from "./opening";
 
 export default function AnalysisTab(props: GridProps) {
   const linesNumber = useAtomValue(engineMultiPvAtom);
-  const engineName = useAtomValue(engineNameAtom);
-  const position = useCurrentPosition(engineName);
+  const position = useAtomValue(currentPositionAtom);
   const game = useAtomValue(gameAtom);
   const board = useAtomValue(boardAtom);
   const gameEval = useAtomValue(gameEvalAtom);

src/sections/analysis/panelHeader/analyzeButton.tsx

@@ -18,10 +18,13 @@ import { SavedEvals } from "@/types/eval";
 import { useEffect, useCallback } from "react";
 import { usePlayersData } from "@/hooks/usePlayersData";
 import { Typography } from "@mui/material";
+import { useCurrentPosition } from "../hooks/useCurrentPosition";
+import { getRecommendedWorkersNb } from "@/lib/engine/worker";
 
 export default function AnalyzeButton() {
   const engineName = useAtomValue(engineNameAtom);
   const engine = useEngine(engineName);
+  useCurrentPosition(engine);
   const [evaluationProgress, setEvaluationProgress] = useAtom(
     evaluationProgressAtom
   );
@@ -55,6 +58,7 @@ export default function AnalyzeButton() {
         white: white?.rating,
         black: black?.rating,
       },
+      workersNb: getRecommendedWorkersNb(),
     });
 
     setEval(newGameEval);