import { createContext } from 'react';

import { createHoc } from './createHoc';
import { createHook } from './createHook';
import { createProvider } from './createProvider';
import { Actions, Dakpan, DakpanContext, InitialState } from './types';

export function createDakpan<S extends object>(): <A extends Actions<S>>(actions: A) => Dakpan<S, A, false>;

export function createDakpan<S extends object>(
  initialState: InitialState<S>
): <A extends Actions<S>>(actions: A) => Dakpan<S, A, true>;

export function createDakpan<S extends object>(initialState?: InitialState<S>) {
  return <A extends Actions<S>>(actions: A): Dakpan<S, A, true | false> => {
    const context = createContext<DakpanContext<S, A>>(undefined);
    const hook = createHook(context);
    const state = initialState instanceof Function ? initialState() : initialState;

    return [
      createProvider(context, actions, state),
      hook,
      createHoc(hook)
    ];
  };
}