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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/* $Rev$ $Date$ */
#ifndef store_cart_hpp
#define store_cart_hpp
#include <string>
#include "function.hpp"
#include "list.hpp"
#include "currency.hpp"
#include "item.hpp"
#include "catalog.hpp"
namespace store
{
const double accum(const double total, const Item& item) {
return total + item.price;
}
class ShoppingCart {
public:
virtual const tuscany::list<Item> getAll() const = 0;
virtual const bool post(const Item& item) = 0;
virtual const bool deleteAll() = 0;
virtual const double getTotal() const = 0;
};
class ShoppingCartImpl : public ShoppingCart {
public:
tuscany::list<Item> cart;
virtual const tuscany::list<Item> getAll() const {
return cart;
}
virtual const bool post(const Item& item) {
cart = cons(item, cart);
return true;
}
virtual const bool deleteAll() {
cart = tuscany::list<Item>();
return true;
}
virtual const double getTotal() const {
tuscany::lambda<double(double, Item)> a(accum);
return reduce(a, 0.0, cart);
}
};
}
#endif /* store_cart_hpp */
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