import type { VzFormat, StereoMode, VzError, QualityLevel, LicenseResult } from '@vizor-vr/shared';
/** Shape of all player state */
export interface PlayerStateShape {
    playing: boolean;
    paused: boolean;
    currentTime: number;
    duration: number;
    buffered: number;
    seeking: boolean;
    ended: boolean;
    volume: number;
    muted: boolean;
    playbackRate: number;
    loading: boolean;
    loadProgress: number;
    format: VzFormat | null;
    stereoMode: StereoMode;
    currentQuality: string;
    availableQualities: QualityLevel[];
    autoQuality: boolean;
    lat: number;
    lon: number;
    fov: number;
    xrSupported: boolean;
    xrActive: boolean;
    controlsVisible: boolean;
    fullscreen: boolean;
    isLive: boolean;
    isAtLiveEdge: boolean;
    license: LicenseResult | null;
    currentProbeId: string | null;
    tourProbeCount: number;
    error: VzError | null;
}
type Listener<T> = (value: T, prev: T) => void;
type AnyListener = (key: string, value: unknown, prev: unknown) => void;
/**
 * Lightweight reactive state store for the player.
 * Supports per-key subscriptions and batch updates.
 */
export declare class PlayerState {
    private state;
    private listeners;
    private globalListeners;
    constructor(initial?: Partial<PlayerStateShape>);
    /** Get the current value of a state key */
    get<K extends keyof PlayerStateShape>(key: K): PlayerStateShape[K];
    /** Get the entire state snapshot (read-only) */
    getSnapshot(): Readonly<PlayerStateShape>;
    /** Set a single state value. No-op if value is unchanged. */
    set<K extends keyof PlayerStateShape>(key: K, value: PlayerStateShape[K]): void;
    /** Batch multiple state updates. Notifications fire after all values are set. */
    batch(updates: Partial<PlayerStateShape>): void;
    /** Subscribe to changes on a specific state key. Returns unsubscribe function. */
    subscribe<K extends keyof PlayerStateShape>(key: K, listener: Listener<PlayerStateShape[K]>): () => void;
    /** Subscribe to all state changes. Returns unsubscribe function. */
    subscribeAll(listener: AnyListener): () => void;
    /** Reset state to initial values */
    reset(): void;
    private notify;
}
export {};
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