import { IStateFragment } from "../state";
import { IReducerAction } from "../actions";
import { Reducer } from "redux";
export interface IStateFragmentHandler<TFragment, TAction> {
    /** Modify the payload after ok */
    payloadModifier?: (payload: TAction) => TFragment;
    /** Fired when an Action with an OK Status is processed */
    onOk?: (newState: IStateFragment<TFragment>) => void;
    /** do we allow existing data to be preserved when a Pending action is recieved */
    reuseDataOnPending?(action: IReducerAction<TAction>, state: IStateFragment<TFragment>): boolean;
    /** do we allow existing data to be preserved when a Error action is recieved */
    reuseDataOnError?(action: IReducerAction<TAction>, state: IStateFragment<TFragment>): boolean;
}
export interface IReducerBuilder<TFragment, TState> {
    /** Create a default Reducer Builder */
    default<TAction>(canHandle: string | {
        (action: IReducerAction<TFragment>): boolean;
    }, options?: IStateFragmentHandler<TFragment, TAction>): IReducerBuilder<TFragment, TState>;
    /** Create a custom Reducer Builder */
    custom<TAction>(canHandle: string | {
        (action: IReducerAction<TAction>): boolean;
    }, reducer: (state: TState, action: IReducerAction<TAction>) => TState, handler?: IStateFragmentHandler<TFragment, TAction>): IReducerBuilder<TFragment, TState>;
}
export interface IReducerBuilderManager<TFragment, TState> extends IReducerBuilder<TFragment, TState> {
    /** Builds the Reducer */
    build(): Reducer<TState>;
}
/** Create a Reducer Builder Manager */
export declare function createBuilderManager<TFragment, TState>(helper: IReducerHelper<TFragment, TState>): IReducerBuilderManager<TFragment, TState>;
export interface IReducerHelper<TFragment, TState> {
    /** Create a default Reducer */
    default<TAction>(canHandle: string | {
        (action: IReducerAction<TAction>): boolean;
    }, options?: IStateFragmentHandler<TFragment, TAction>): Reducer<TState>;
    /** Create a custom Reducer */
    custom<TAction>(canHandle: string | {
        (action: IReducerAction<TAction>): boolean;
    }, reducer: (state: TState, action: IReducerAction<TAction>) => TState): Reducer<TState>;
}
/** Create a Reducer Helper */
export declare function createReducerHelper<TFragment, TState>(reducer: <TAction>(state: TState, action: IReducerAction<TAction>, options?: IStateFragmentHandler<TFragment, TAction>) => TState, createDefaultState: () => TState): IReducerHelper<TFragment, TState>;