/*
    *    Copyright 2010-2022 the original author or authors.
    *
    *    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
    *
    *       https://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 org.mybatis.jpetstore.domain;
  
  import java.io.Serializable;
  import java.math.BigDecimal;
  import java.util.Optional;
  
  /**
   * The Class LineItem.
   *
   * @author Eduardo Macarron
   */
  public class LineItem implements Serializable {
  
    private static final long serialVersionUID = 6804536240033522156L;
  
    private int orderId;
    private int lineNumber;
    private int quantity;
    private String itemId;
    private BigDecimal unitPrice;
    private Item item;
    private BigDecimal total;
  
    public LineItem() {
    }
  
    /**
     * Instantiates a new line item.
     *
     * @param lineNumber
     *          the line number
     * @param cartItem
     *          the cart item
     */
    public LineItem(int lineNumber, CartItem cartItem) {
      this.lineNumber = lineNumber;
      this.quantity = cartItem.getQuantity();
      this.itemId = cartItem.getItem().getItemId();
      this.unitPrice = cartItem.getItem().getListPrice();
      this.item = cartItem.getItem();
      calculateTotal();
    }
  
    public int getOrderId() {
      return orderId;
    }
  
    public void setOrderId(int orderId) {
      this.orderId = orderId;
    }
  
    public int getLineNumber() {
      return lineNumber;
    }
  
    public void setLineNumber(int lineNumber) {
      this.lineNumber = lineNumber;
    }
  
    public String getItemId() {
      return itemId;
    }
  
    public void setItemId(String itemId) {
      this.itemId = itemId;
    }
  
    public BigDecimal getUnitPrice() {
      return unitPrice;
    }
  
    public void setUnitPrice(BigDecimal unitprice) {
      this.unitPrice = unitprice;
    }
  
    public BigDecimal getTotal() {
      return total;
    }
  
    public Item getItem() {
      return item;
    }
  
    public void setItem(Item item) {
     this.item = item;
     calculateTotal();
   }
 
   public int getQuantity() {
     return quantity;
   }
 
   public void setQuantity(int quantity) {
     this.quantity = quantity;
     calculateTotal();
   }
 
   private void calculateTotal() {
     total = Optional.ofNullable(item).map(Item::getListPrice).map(v -> v.multiply(new BigDecimal(quantity)))
         .orElse(null);
   }
 
 }