import { environment } from '@env/environment';
// import { storeFreeze } from 'ngrx-store-freeze';
import { MetaReducer, ActionReducer } from '@ngrx/store';
import { State } from './state';
// storeStateGuard会处理登出的情况,需要用到authActions
import * as authActions from 'app/actions/auth.action';

export function logger(reducer: ActionReducer<State>): ActionReducer<State> {
  return function(state: State, action: any): State {
    console.log('state', state);
    console.log('action', action);

    return reducer(state, action);
  };
}

export function storeStateGuard(reducer: ActionReducer<State>): ActionReducer<State> {
  return function(state: State, action: any): State {
    if (action.type === authActions.Logout) {
      return reducer( undefined, action);
    }
    return reducer(state, action);
  };
}

export const metaReducers: MetaReducer<State>[] = !environment.production
  ? [ // 系统自待
    // storeFreeze,
    // 自己实现的
    logger, storeStateGuard,
  ]
  : [storeStateGuard];