import type { Game } from '../engine/game.js';
export interface OpeningMove {
    move: string;
    weight: number;
    eco?: string;
    name?: string;
    variation?: string;
}
export interface OpeningBookConfig {
    enabled?: boolean;
    maxDepth?: number;
    randomize?: boolean;
    minWeight?: number;
}
export interface OpeningBookData {
    version: string;
    maxDepth: number;
    positions: Record<string, OpeningMove[]>;
}
export declare class OpeningBook {
    private positions;
    private config;
    private maxDepth;
    private version;
    constructor(config?: OpeningBookConfig);
    loadData(data: OpeningBookData): void;
    getMove(game: Game): OpeningMove | null;
    hasPosition(fen: string): boolean;
    getMoves(fen: string): OpeningMove[];
    getStats(): {
        version: string;
        maxDepth: number;
        positionCount: number;
        totalMoves: number;
    };
    clear(): void;
    configure(config: Partial<OpeningBookConfig>): void;
    private normalizeFEN;
    private selectMove;
}
export declare function loadOpeningBookFromFile(filePath: string): Promise<OpeningBook>;
export declare function createDefaultOpeningBook(): OpeningBook;
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