import type { StateManager } from "./state-manager";
/**
 * The `StateManagerCenter` class is a singleton that manages multiple state managers,
 * logs state changes, and provides methods for state hydration and dehydration.
 */
declare class StateManagerCenter {
    protected _cacheRefs: Record<string, CacheRef>;
    /**
     * A record of state managers identified by unique IDs.
     */
    protected _stateManagers: Record<string, StateManager<any>>;
    /**
     * An array of state manager center records.
     */
    protected _records: CenterRecordType[];
    /**
     * A record of the current states identified by unique IDs.
     */
    protected _currentStates: Record<string, any>;
    /**
     * A flag indicating whether logging is enabled.
     */
    protected _isEnabledLog: boolean;
    /**
     * A flag indicating whether cloning is disabled.
     */
    protected _disableCloning: boolean;
    /**
     * An optional callback function for logging.
     */
    protected _onLog: ((props: {
        uid: string;
        state: any;
    }) => Promise<void>) | undefined;
    /**
     * A flag indicating whether hydration is in progress.
     */
    protected _isHydration: boolean;
    /**
     * Gets the hydration status.
     */
    get isHydration(): boolean;
    /**
     * The singleton instance of `StateManagerCenter`.
     */
    private static _instance;
    /**
     * Private constructor to prevent direct instantiation.
     */
    private constructor();
    /**
     * Gets the cloning disable status.
     */
    get disableCloning(): boolean;
    /**
     * Sets the cloning disable status.
     */
    set disableCloning(value: boolean);
    /**
     * Gets the singleton instance of `StateManagerCenter`.
     */
    static get instance(): StateManagerCenter;
    /**
     * Gets the current states.
     */
    get currentStates(): Record<string, any>;
    /**
     * Gets the logging enable status.
     */
    get enableLog(): boolean;
    /**
     * Sets the logging enable status.
     */
    set enableLog(value: boolean);
    /**
     * Returns the state manager center records.
     * These records can be sent to the server for monitoring and debugging purposes.
     *
     * @returns The state manager center records.
     */
    get records(): CenterRecordType[];
    /**
     * Sets the current records to the provided records.
     * This method can be used for monitoring and debugging purposes.
     *
     * @param records - The records to be set.
     */
    set records(records: CenterRecordType[]);
    /**
     * Gets the state manager center records in reverse order.
     */
    getReverseRecords(): Promise<CenterRecordType[]>;
    /**
     * Logs a state change.
     */
    _log({ uid, state }: {
        uid: string;
        state: any;
    }): this;
    /**
     * Registers a state manager with a unique ID.
     */
    _register({ uid, stateManager, }: {
        uid: string;
        stateManager: StateManager<any>;
    }): this;
    /**
     * Applies the given states to the related state managers.
     *
     * @param {CenterRecordType} record - An object containing the states to be applied.
     * @returns {this} The current instance of the class.
     */
    apply({ states }: CenterRecordType): this;
    /**
     * Initializes the hydration process.
     */
    protected _initializeHydration(): this;
    /**
     * Hydrates the state managers with the provided entities.
     * @param entities - The entities to be hydrated.
     * @returns The hydrated states.
     * @throws An error if the entity does not have a `hydrated` property.
     */
    get hydrated(): {
        generate: (...entries: HydratedEntries) => Promise<{
            hydrated: Hydrated;
            values: any[];
        }>;
        config: ({ initial }: {
            initial: Hydrated;
        }) => {
            generate: (...entries: HydratedEntries) => Promise<{
                hydrated: Hydrated;
                values: any[];
            }>;
        };
    };
    protected _generateHydrated({ entries, initial, }: {
        initial?: Hydrated;
        entries: HydratedEntries;
    }): Promise<{
        hydrated: Hydrated;
        values: any[];
    }>;
    _registerCacheRef({ uid, ref }: {
        uid: string;
        ref: any;
    }): this;
    /**
     * Dehydrates the state managers with the provided states.
     * @param states - The states to be dehydrated.
     */
    dehydrate(hydrated: Hydrated): Promise<void>;
    protected _updateCache({ value, hash, cacheRef, timestamp, }: HydratedItem): Promise<void>;
    /**
     * Registers a callback function for logging.
     * If a callback is already registered, an error will be thrown.
     * @param callback - The callback function to be registered.
     * @returns The `StateManagerCenter` instance.
     * @throws An error if a callback is already registered.
     */
    onLog(callback: ((props: {
        uid: string;
        state: any;
    }) => Promise<void>) | undefined): StateManagerCenter;
    /**
     * Clears the state manager center records.
     */
    clearRecords(): this;
}
export declare const center: StateManagerCenter;
export type CenterRecordType = {
    updatedUID: string;
    timestamp: number;
    states: Record<string, any>;
    number: number;
};
export type HydratedEntries = (Promise<HydratedEntry> | HydratedEntry)[];
export type HydratedEntry = {
    update: (record: Hydrated["data"]) => void;
    value: any;
};
export type Hydrated = {
    id: string;
    data: Record<string, HydratedItem>;
    timestamp: number;
};
export type HydratedItem = {
    value: any;
    hash?: string;
    cacheRef?: string;
    timestamp?: number;
};
export interface CacheRef {
    _getCache(cacheKey: string): Promise<{
        data: any;
        updatedAt: number;
    } | undefined>;
    _setCache(cacheKey: string, value: {
        data: any;
        updatedAt: number;
    }): void;
}
export {};