import { Phase, PhaseKind } from './contract';
import { VoyageOptions } from './config';
import { VoyageRow } from './voyage';
export declare function classifyPhase(row: VoyageRow, openKnots: number): PhaseKind;
interface Pt {
    ts: number;
    lat: number | null;
    lon: number | null;
}
export interface OpenPhase {
    kind: PhaseKind;
    start: Pt;
}
export declare class PhaseStateMachine {
    private opts;
    private curKind;
    private curStart;
    private last;
    private candKind;
    private candStart;
    private candStreakMs;
    private lastTs;
    constructor(opts: VoyageOptions, restored?: OpenPhase | null);
    feed(row: VoyageRow): Phase | null;
    current(): Phase | null;
}
export {};