import { State } from "./types";
import { UserProfile } from "@kinde/js-utils";

type Action =
  { type: "INITIALISED"; user: UserProfile } | { type: "ERROR"; error: string };
const onInitialise = (state: State, action: Pick<State, "user">): State => ({
  ...state,
  isAuthenticated: Boolean(action.user),
  user: action.user,
  isLoading: false,
  error: undefined,
});

const onLogout = (state: State): State => ({
  ...state,
  isAuthenticated: false,
  user: undefined,
});

const onError = (state: State, action: Partial<State>): State => ({
  ...state,
  isLoading: false,
  error: action.error,
});

const reducerMap = {
  INITIALISED: onInitialise,
  LOGOUT: onLogout,
  ERROR: onError,
};

export const reducer = (state: State, action: Action) => {
  return reducerMap[action.type]
    ? reducerMap[action.type](state, action)
    : state;
};