CartTaxable.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2016 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 org.turro.math.Round;
 
public class CartTaxable implements Comparable<CartTaxable> {
 
  private Double perCent, tax, taxValue, amount, taxable;
 
  public CartTaxable(Double perCent, Double tax) {
    this.perCent = perCent;
    this.tax = tax;
    taxValue = 0.0;
    amount = 0.0;
    taxable = 0.0;
  }
 
  public void add(Double taxValue, Double amount, Double taxable) {
    this.taxValue += taxValue;
    this.amount += amount;
    this.taxable += taxable;
  }
 
  public boolean isPerCent(Double perCent) {
    return this.perCent.equals(perCent);
  }
  
  public Double getTax() {
    return tax;
  }
 
  public Double getDiscount() {
    return new Round(amount - taxable).decimals(2).value();
  }
 
  public Double getAmount() {
    return amount;
  }
 
  public Double getTaxable() {
    return taxable;
  }
 
  public Double getTaxAmount() {
    return taxValue;
  }
  
  public Double getTotal() {
    if(tax == 0.0) {
      return taxable;
    }
    return taxable + taxValue;
  }
 
  public boolean isEmpty() {
    return amount == null || amount == 0 || amount.isNaN();
  }
  
  @Override
  public int hashCode() {
    int hash = 7;
    hash = 23 * hash + (this.perCent != null ? this.perCent.hashCode() : 0);
    return hash;
  }
 
  @Override
  public boolean equals(Object obj) {
    if (obj == null) {
      return false;
    }
    if (getClass() != obj.getClass()) {
      return false;
    }
    final CartTaxable other = (CartTaxable) obj;
    if (this.perCent != other.perCent && (this.perCent == null || !this.perCent.equals(other.perCent))) {
      return false;
    }
    return true;
  }
 
  @Override
  public int compareTo(CartTaxable o) {
    return perCent.compareTo(o.perCent);
  }
 
}