/**
 * State change callbacks
 */
export declare type Listener<T> = (state: T) => void;
/**
 * @type BaseConfig
 *
 * Base controller configuration
 * @property disabled - Determines if this controller is enabled
 */
export interface BaseConfig {
    disabled?: boolean;
}
/**
 * @type BaseState
 *
 * Base state representation
 * @property name - Unique name for this controller
 */
export interface BaseState {
    name?: string;
}
/**
 * Controller class that provides configuration, state management, and subscriptions.
 *
 * The core purpose of every controller is to maintain an internal data object
 * called "state". Each controller is responsible for its own state, and all global wallet state
 * is tracked in a controller as state.
 */
export declare class BaseController<C extends BaseConfig, S extends BaseState> {
    /**
     * Default options used to configure this controller
     */
    defaultConfig: C;
    /**
     * Default state set on this controller
     */
    defaultState: S;
    /**
     * Determines if listeners are notified of state changes
     */
    disabled: boolean;
    /**
     * Name of this controller used during composition
     */
    name: string;
    private readonly initialConfig;
    private readonly initialState;
    private internalConfig;
    private internalState;
    private internalListeners;
    /**
     * Creates a BaseController instance. Both initial state and initial
     * configuration options are merged with defaults upon initialization.
     *
     * @param config - Initial options used to configure this controller.
     * @param state - Initial state to set on this controller.
     */
    constructor(config?: Partial<C>, state?: Partial<S>);
    /**
     * Enables the controller. This sets each config option as a member
     * variable on this instance and triggers any defined setters. This
     * also sets initial state and triggers any listeners.
     *
     * @returns This controller instance.
     */
    protected initialize(): this;
    /**
     * Retrieves current controller configuration options.
     *
     * @returns The current configuration.
     */
    get config(): C;
    /**
     * Retrieves current controller state.
     *
     * @returns The current state.
     */
    get state(): S;
    /**
     * Updates controller configuration.
     *
     * @param config - New configuration options.
     * @param overwrite - Overwrite config instead of merging.
     * @param fullUpdate - Boolean that defines if the update is partial or not.
     */
    configure(config: Partial<C>, overwrite?: boolean, fullUpdate?: boolean): void;
    /**
     * Notifies all subscribed listeners of current state.
     */
    notify(): void;
    /**
     * Adds new listener to be notified of state changes.
     *
     * @param listener - The callback triggered when state changes.
     */
    subscribe(listener: Listener<S>): void;
    /**
     * Removes existing listener from receiving state changes.
     *
     * @param listener - The callback to remove.
     * @returns `true` if a listener is found and unsubscribed.
     */
    unsubscribe(listener: Listener<S>): boolean;
    /**
     * Updates controller state.
     *
     * @param state - The new state.
     * @param overwrite - Overwrite state instead of merging.
     */
    update(state: Partial<S>, overwrite?: boolean): void;
}
export default BaseController;