import { RootStoreState, ProductStoreSelectors} from 'src/app/stores';

this.store$.pipe(select(ProductStoreSelectors.getSelectedProduct())).subscribe((value) => {
    console.log(value)
})

export const featureAdapter: EntityAdapter<IProduct> = createEntityAdapter<IProduct>({
  selectId: model => model.id,
});

export const selectProductState: MemoizedSelector<object, State> = createFeatureSelector<State>('products');

export const getSelectedProduc = () => createSelector(
  selectProductState,
  (state: State) => state.selectedProduct
);

export interface State extends EntityState<IProduct> {
  selectedProduct: IProduct;
}

function memoized() {
        if (!lastArguments) {
            lastResult = projectionFn.apply(null, arguments);
            lastArguments = arguments;
            return lastResult;
        }
        if (!isArgumentsChanged(arguments, lastArguments, isArgumentsEqual)) {
            return lastResult;
        }
        lastArguments = arguments;
        var newResult = projectionFn.apply(null, arguments);
        if (isResultEqual(lastResult, newResult)) {
            return lastResult;
        }
        lastResult = newResult;
        return newResult;
    }