import { HVal } from 'haystack-core';
/**
 * A watch event.
 */
export interface WatchEvent {
    type: WatchEventType;
}
/**
 * A changes data structure.
 */
export interface WatchChanged {
    added?: {
        name: string;
        value: HVal;
    }[];
    removed?: {
        name: string;
        value: HVal;
    }[];
    changed?: {
        name: string;
        oldValue: HVal;
        value: HVal;
    }[];
}
/**
 * Watch events to listen too.
 */
export declare enum WatchEventType {
    /**
     * A watch has been closed and is no longer active.
     */
    Closed = "closed",
    /**
     * A watch's records have changed.
     */
    Changed = "changed",
    /**
     * A watch has been refreshed.
     */
    Refreshed = "refreshed",
    /**
     * A watch has records added to it.
     */
    Added = "added",
    /**
     * A watch has records removed from it.
     */
    Removed = "removed",
    /**
     * A watch is attempting to watch records
     * that don't exist.
     */
    Error = "error"
}
/**
 * A watch changed event.
 *
 * This is associated with a `changed` event.
 */
export interface WatchChangedEvent extends WatchEvent {
    ids: {
        [prop: string]: WatchChanged;
    };
}
/**
 * A watch event with an array of ids associated with it.
 *
 * This is associated with `added`, `removed` and `error` events.
 */
export interface WatchIdsEvent extends WatchEvent {
    ids: string[];
}