Reducer

reducer.ts

import { ActionPayload, AllActionsPayload, Constants, IActionMap } from './actionFactory';

type ReducerCase<P> = (state: IStore, payload: P) => IStore;
type IReducer = { [P in keyof Record<Constants, ReducerCase<AllActionsPayload>>]: ReducerCase<IActionMap[P]> };
  
export const reducer: IReducer = {
  
  ACTION_NAMESPACE: (state, payload) => {
    const { id, mode } = payload;
    return state  
  },  
};

export const communicatorReducer = (reducers: Record<Constants, ReducerCase<AllActionsPayload>>) => (
  state = initialState,
  { type, payload }: ActionPayload<Constants, AllActionsPayload>
): IStore => (reducers[type] ? reducers[type](state, payload) : state);

export default communicatorReducer(reducer);