/*
* Copyright 2017 Hannes Dorfmann.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package com.hannesdorfmann.mosby3.sample.mvi.view.shoppingcartlabel;
import com.hannesdorfmann.mosby3.mvi.MviBasePresenter;
import com.hannesdorfmann.mosby3.sample.mvi.businesslogic.ShoppingCart;
import io.reactivex.Observable;
import io.reactivex.android.schedulers.AndroidSchedulers;
import java.util.List;
import timber.log.Timber;
/**
* Presenter for {@link ShoppingCartLabelView} that displays the number of items in the shopping
* cart
*
* @author Hannes Dorfmann
*/
public class ShoppingCartLabelPresenter extends MviBasePresenter<ShoppingCartLabelView, Integer> {
private final ShoppingCart shoppingCart;
public ShoppingCartLabelPresenter(ShoppingCart shoppingCart) {
this.shoppingCart = shoppingCart;
}
@Override protected void bindIntents() {
Observable<Integer> numberOfItemsInShoppingCart =
intent(ShoppingCartLabelView::loadIntent).doOnNext(
ignored -> Timber.d("intent: load number of items in shopping cart"))
.flatMap(ignored -> shoppingCart.itemsInShoppingCart())
.map(List::size)
.observeOn(AndroidSchedulers.mainThread());
subscribeViewState(numberOfItemsInShoppingCart, ShoppingCartLabelView::render);
}
}