import { AnyAction, Reducer, Store } from 'redux';
import { Observable } from 'rxjs';
import { Comparator, PathSelector, Selector } from './selectors';
/**
 * This interface represents the glue that connects the
 * subscription-oriented Redux Store with the RXJS Observable-oriented
 * Angular component world.
 *
 * Augments the basic Redux store interface with methods to
 * enable selection and fractalization.
 */
export interface ObservableStore<StateType> extends Store<StateType> {
    /**
     * Select a slice of state to expose as an observable.
     *
     * @typeparam S
     * @param selector key or function to select a part of the state
     * @param [comparator] Optional
     * comparison function called to test if an item is distinct
     * from the previous item in the source.
     *
     * @returns An Observable that emits items from the
     * source Observable with distinct values.
     */
    select: <SelectedType>(selector: Selector<StateType, SelectedType>, comparator?: Comparator) => Observable<SelectedType>;
    /**
     * Carves off a 'subStore' or 'fractal' store from this one.
     *
     * The returned object is itself an observable store, however any
     * selections, dispatches, or invocations of localReducer will be
     * specific to that substore and will not know about the parent
     * ObservableStore from which it was created.
     *
     * This is handy for encapsulating component or module state while
     * still benefiting from time-travel, etc.
     */
    configureSubStore: <SubState>(basePath: PathSelector, localReducer: Reducer<SubState, AnyAction>) => ObservableStore<SubState>;
}