import type { BracketsState, Match, MatchInput, Player, PlayerInput, Rounds, RoundsInput, WinnerState } from '../types';
export declare class BracketModelHelper {
    private static idSeq;
    private static nextId;
    private static nextPowerOfTwo;
    static normalizePlayer(raw: PlayerInput | null | undefined): Player | null;
    private static clonePlayer;
    private static createMatch;
    private static resolveWinnerId;
    /** Round with exactly 2 matches (semifinals). Null if bracket is too small. */
    static getSemifinalRoundIndex(rounds: Rounds): number | null;
    /** Final is the 1-match round just before the champion display round (or last 1-match). */
    static getFinalRoundIndex(rounds: Rounds): number | null;
    private static loserOf;
    private static buildThirdPlaceFromSemis;
    static normalizeRounds(rawRounds: RoundsInput | null | undefined, options?: {
        thirdPlace?: boolean | MatchInput;
    }): {
        rounds: Rounds;
        thirdPlace: Match | null;
    };
    private static applyByeAdvances;
    private static deepCloneRounds;
    private static cloneThirdPlace;
    private static syncThirdPlaceFromSemis;
    static setWinner(state: WinnerState, roundIndex: number | 'thirdPlace', matchIndex: number, playerId: string): WinnerState;
    private static clearDownstream;
    private static advanceWinner;
    static getSerializableState(state: {
        titles: boolean | string[];
        rounds: Rounds;
        thirdPlace?: Match | null;
    }): BracketsState;
}