Cart.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2014 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.financials.cart;
 
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Currency;
import java.util.Iterator;
import org.turro.action.Contacts;
import org.turro.action.IRegisterCallback;
import org.turro.elephant.impl.util.Serializer;
import org.turro.elephant.security.IUser;
import org.turro.plugin.contacts.IContact;
import org.turro.util.IdGenerator;
 
public class Cart implements Serializable, IRegisterCallback {
 
  private boolean wantBill = false, pickup = false;
  private int status = 0;
  private final CartItemSet items;
  private String order, contactId, deliveryValue;
  private transient IContact contact;
  
  public Cart() {
    this.items = new CartItemSet();
  }
 
  public String getResetOrder() {
    order = IdGenerator.generateLong().substring(2, 14);
    return order;
  }
 
  public CartItemSet getItems() {
    return items;
  }
 
  public String getOrder() {
    return order;
  }
 
  public int getStatus() {
    return status;
  }
 
  public void setStatus(int status) {
    this.status = status;
  }
 
  public boolean isWantBill() {
    return wantBill;
  }
 
  public void setWantBill(boolean wantBill) {
    this.wantBill = wantBill;
  }
 
  public boolean isPickup() {
    return pickup;
  }
 
  public void setPickup(boolean pickup) {
    this.pickup = pickup;
  }
 
  public String getDeliveryValue() {
    return deliveryValue;
  }
 
  public void setDeliveryValue(String deliveryValue) {
    this.deliveryValue = deliveryValue;
  }
  
  public boolean isEmpty() {
    return items.isEmpty();
  }
  
  public boolean needsDelivery() {
    Iterator<CartItem> it = items.iterator();
    while(it.hasNext()) {
      if(it.next().isNeedsDelivery()) {
        return true;
      }
    }
    return false;
  }
  
  public void removeDeliveryItem() {
    Iterator<CartItem> it = items.iterator();
    while(it.hasNext()) {
      if(it.next().isDeliveryItem()) {
        it.remove();
      }
    }
  }
  
  public boolean addDeliveryItem(long productId, double quantity, double tax, double price) {
    CartItem ci = new CartItem();
    ci.setProductId(productId);
    ci.setQuantity(quantity);
    ci.setTax(tax);
    ci.setPrice(price);
    ci.makeValid();
    ci.setDeliveryItem(true);
    return items.addItem(ci);
  }
  
  public boolean addItem(long productId, double quantity, double tax, double price) {
    setStatus(0);
    CartItem ci = new CartItem();
    ci.setProductId(productId);
    ci.setQuantity(quantity);
    ci.setTax(tax);
    ci.setPrice(price);
    ci.makeValid();
    ci.setDeliveryItem(false);    
    return items.addItem(ci);
  }
  
  public void removeItem(Integer order) {
    setStatus(0);
    Iterator<CartItem> it = items.iterator();
    while(it.hasNext()) {
      if(it.next().getOrder() == order) {
        it.remove();
        break;
      }
    }
  }
  
  public void changeItem(Integer order, double quantity) {
    setStatus(0);
    Iterator<CartItem> it = items.iterator();
    while(it.hasNext()) {
      CartItem ci = it.next();
      if(ci.getOrder() == order) {
        ci.setQuantity(quantity);
        break;
      }
    }
  }
  
  public void changeItem(Integer order, String concept) {
    setStatus(0);
    Iterator<CartItem> it = items.iterator();
    while(it.hasNext()) {
      CartItem ci = it.next();
      if(ci.getOrder() == order) {
        ci.setConcept(concept);
        break;
      }
    }
  }
  
  public CartItem getItem(Integer order) {
    Iterator<CartItem> it = items.iterator();
    while(it.hasNext()) {
      CartItem ci = it.next();
      if(ci.getOrder() == order) {
        return ci;
      }
    }
    return null;
  }
  
  public Collection<CartItem> getProducts(long id) {
    ArrayList<CartItem> list = new ArrayList<>();
    for(CartItem ci : items) {
      if(ci.getProductId() == id) {
        list.add(ci);
      }
    }
    return list;
  }
  
  public double getTotalAmount() {
    double value = 0.0;
    for(CartItem ci : items) {
      value += ci.getAmount();
    }
    return value;
  }
  
  public double getTotalTaxable() {
    double value = 0.0;
    for(CartItem ci : items) {
      value += ci.getTaxable();
    }
    return value;
  }
  
  public double getTotalTax() {
    double value = 0.0;
    for(CartItem ci : items) {
      value += ci.getTaxAmount();
    }
    return value;
  }
  
  public CartAmounts getAmounts() {
    return new CartAmounts(this);
  }
 
  public IContact getContact() {
    if(contact == null) {
      contact = Contacts.getContactById(contactId);
    }
    return contact;
  }
  
public void serializeFor(String email) {
    setStatus(0);
    Serializer.serialize("/cart/" + email + ".ser", this);
  }
 
  public void serializeFor(IContact contact) {
    setStatus(0);
    Serializer.serialize("/cart/" + contact.getId() + ".ser", this);
  }
  
  public void serializeForOrder(IContact contact) {
    contactId = contact.getId();
    Serializer.serialize("/cart/" + getOrder() + ".ser", this);
  }
  
  public static Cart deserializeFor(IContact contact) {
    Cart cart = (Cart) Serializer.deserialize("/cart/" + contact.getId() + ".ser");
    if(cart == null) {
      String mailFile = "/cart/" + contact.getConnector(IUser.CONNECTOR_EMAIL) + ".ser";
      cart = (Cart) Serializer.deserialize(mailFile);
    }
    return cart;
  }
 
  public static Cart deserializeForOrder(String order) {
    Cart cart = (Cart) Serializer.deserialize("/cart/" + order + ".ser");
    Serializer.remove("/cart/" + order + ".ser");
    return cart;
  }
 
  public static void removeFor(IContact contact) {
    Serializer.remove("/cart/" + contact.getId() + ".ser");
    Serializer.remove("/cart/" + contact.getConnector(IUser.CONNECTOR_EMAIL) + ".ser");
  }
 
  @Override
  public void onRegister(String email) {
    serializeFor(email);
  }
  
  private Currency _currency;
  
  public Currency getCurrency() {
    if(_currency == null) {
      _currency = Currency.getInstance(ShopContext.getInstance().getCurrency());
    }
    return _currency;
  }
 
}