fix: Stockfish via npm-Paket statt Alpine apk
- stockfish als npm dependency (kein apk add nötig, portabel) - Dockerfile: nur noch git via apk, kein stockfish - docker-compose.yml: version-Zeile entfernt (veraltet) - Controller auf npm-Package-API umgeschrieben (postMessage/onmessage) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Michess
@@ -1,5 +1,3 @@
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import { spawn, type ChildProcessWithoutNullStreams } from "child_process";
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export interface StockfishLevel {
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level: number;
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name: string;
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@@ -9,100 +7,98 @@ export interface StockfishLevel {
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}
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export const AI_LEVELS: StockfishLevel[] = [
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{ level: 1, name: "Anfänger", skillLevel: 0, depth: 1, moveTime: 100 },
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{ level: 2, name: "Leicht", skillLevel: 3, depth: 3, moveTime: 200 },
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{ level: 3, name: "Mittel", skillLevel: 8, depth: 5, moveTime: 500 },
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{ level: 4, name: "Fortgeschritten",skillLevel: 14, depth: 10, moveTime: 1000 },
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{ level: 5, name: "Experte", skillLevel: 18, depth: 15, moveTime: 2000 },
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{ level: 6, name: "Meister", skillLevel: 20, depth: 20, moveTime: 3000 },
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{ level: 1, name: "Anfänger", skillLevel: 0, depth: 1, moveTime: 100 },
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{ level: 2, name: "Leicht", skillLevel: 3, depth: 3, moveTime: 200 },
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{ level: 3, name: "Mittel", skillLevel: 8, depth: 5, moveTime: 500 },
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{ level: 4, name: "Fortgeschritten", skillLevel: 14, depth: 10, moveTime: 1000 },
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{ level: 5, name: "Experte", skillLevel: 18, depth: 15, moveTime: 2000 },
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{ level: 6, name: "Meister", skillLevel: 20, depth: 20, moveTime: 3000 },
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];
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type SFEngine = {
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postMessage: (cmd: string) => void;
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onmessage: ((line: string | { data: string }) => void) | null;
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terminate?: () => void;
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};
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export class StockfishEngine {
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private process: ChildProcessWithoutNullStreams | null = null;
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private buffer = "";
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private resolvers: Map<string, (move: string) => void> = new Map();
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private engine: SFEngine | null = null;
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private ready = false;
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private resolvers: Array<(move: string) => void> = [];
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private initPromise: Promise<void>;
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constructor() {
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this.start();
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this.initPromise = this.init();
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}
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private start() {
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// Try system stockfish first, then fallback to npm stockfish
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const binary = process.env.STOCKFISH_PATH || "stockfish";
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private async init() {
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try {
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this.process = spawn(binary, [], { stdio: ["pipe", "pipe", "pipe"] });
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} catch {
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console.error("Failed to start stockfish binary, trying node-stockfish fallback");
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return;
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}
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// Dynamic import of the stockfish npm package
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const { default: Stockfish } = await import("stockfish") as { default: () => SFEngine };
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this.engine = Stockfish();
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this.process.stdout.on("data", (data: Buffer) => {
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this.buffer += data.toString();
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const lines = this.buffer.split("\n");
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this.buffer = lines.pop() || "";
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for (const line of lines) {
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this.handleLine(line.trim());
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}
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});
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await new Promise<void>((resolve) => {
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let uciOk = false;
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let readyOk = false;
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this.process.stderr.on("data", (data: Buffer) => {
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console.error("Stockfish stderr:", data.toString());
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});
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this.engine!.onmessage = (event: string | { data: string }) => {
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const line = typeof event === "string" ? event : event.data;
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this.process.on("exit", (code) => {
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console.log("Stockfish exited with code", code);
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this.ready = false;
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});
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if (line === "uciok") {
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uciOk = true;
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this.engine!.postMessage("isready");
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}
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if (line === "readyok") {
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readyOk = true;
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this.ready = true;
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resolve();
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}
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if (line.startsWith("bestmove ")) {
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const parts = line.split(" ");
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const move = parts[1];
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const resolver = this.resolvers.shift();
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if (resolver) resolver(move === "(none)" ? "" : move);
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}
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};
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this.send("uci");
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}
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this.engine!.postMessage("uci");
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private send(cmd: string) {
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if (this.process?.stdin.writable) {
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this.process.stdin.write(cmd + "\n");
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}
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}
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// Timeout after 5s if engine doesn't respond
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setTimeout(() => {
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if (!readyOk) {
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console.warn("Stockfish init timeout");
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resolve();
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}
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}, 5000);
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});
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private handleLine(line: string) {
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if (line === "uciok") {
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this.ready = true;
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this.send("isready");
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}
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if (line === "readyok") {
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// engine ready
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}
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if (line.startsWith("bestmove ")) {
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const parts = line.split(" ");
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const move = parts[1];
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// resolve any pending resolver
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const [key] = this.resolvers.entries().next().value ?? [];
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if (key) {
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this.resolvers.get(key)?.(move === "(none)" ? "" : move);
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this.resolvers.delete(key);
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}
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console.log("Stockfish engine ready");
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} catch (err) {
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console.error("Failed to initialize Stockfish:", err);
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}
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}
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async getBestMove(fen: string, level: StockfishLevel): Promise<string> {
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await this.initPromise;
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if (!this.engine || !this.ready) {
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console.warn("Stockfish not ready");
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return "";
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}
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return new Promise((resolve) => {
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if (!this.process || !this.ready) {
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resolve("");
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return;
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}
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this.resolvers.push(resolve);
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const id = `${Date.now()}-${Math.random()}`;
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this.resolvers.set(id, resolve);
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this.engine!.postMessage("ucinewgame");
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this.engine!.postMessage(`setoption name Skill Level value ${level.skillLevel}`);
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this.engine!.postMessage(`position fen ${fen}`);
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this.engine!.postMessage(`go depth ${level.depth} movetime ${level.moveTime}`);
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this.send("ucinewgame");
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this.send(`setoption name Skill Level value ${level.skillLevel}`);
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this.send(`position fen ${fen}`);
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this.send(`go depth ${level.depth} movetime ${level.moveTime}`);
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// Timeout safety
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// Safety timeout
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setTimeout(() => {
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if (this.resolvers.has(id)) {
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this.resolvers.delete(id);
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const idx = this.resolvers.indexOf(resolve);
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if (idx !== -1) {
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this.resolvers.splice(idx, 1);
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resolve("");
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}
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}, level.moveTime + 5000);
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@@ -110,13 +106,12 @@ export class StockfishEngine {
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}
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destroy() {
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this.send("quit");
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this.process?.kill();
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this.process = null;
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this.engine?.terminate?.();
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this.engine = null;
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}
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}
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// Singleton engine instance
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// Singleton
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let engineInstance: StockfishEngine | null = null;
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export const getEngine = (): StockfishEngine => {
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