/*
    * Portions of this software was developed by employees of the National Institute
    * of Standards and Technology (NIST), an agency of the Federal Government and is
    * being made available as a public service. Pursuant to title 17 United States
    * Code Section 105, works of NIST employees are not subject to copyright
    * protection in the United States. This software may be subject to foreign
    * copyright. Permission in the United States and in foreign countries, to the
    * extent that NIST may hold copyright, to use, copy, modify, create derivative
    * works, and distribute this software and its documentation without fee is hereby
   * granted on a non-exclusive basis, provided that this notice and disclaimer
   * of warranty appears in all copies.
   *
   * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
   * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
   * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
   * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
   * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
   * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
   * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
   * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
   * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
   * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
   * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
   */
  
  package gov.nist.secauto.metaschema.core.metapath.item.atomic;
  
  import gov.nist.secauto.metaschema.core.datatype.adapter.DecimalAdapter;
  import gov.nist.secauto.metaschema.core.datatype.adapter.MetaschemaDataTypeProvider;
  
  import java.math.BigDecimal;
  import java.math.BigInteger;
  import java.math.RoundingMode;
  
  import edu.umd.cs.findbugs.annotations.NonNull;
  
  class DecimalItemImpl
      extends AbstractNumericItem<BigDecimal>
      implements IDecimalItem {
    public DecimalItemImpl(@NonNull BigDecimal value) {
      super(value);
    }
  
    @Override
    public DecimalAdapter getJavaTypeAdapter() {
      return MetaschemaDataTypeProvider.DECIMAL;
    }
  
    @SuppressWarnings("null")
    @Override
    public String asString() {
      BigDecimal decimal = getValue();
      // if the fractional part is empty, render as an integer
      return decimal.scale() <= 0 ? decimal.toBigIntegerExact().toString() : decimal.toPlainString();
    }
  
    @Override
    public boolean toEffectiveBoolean() {
      return !BigDecimal.ZERO.equals(getValue());
    }
  
    @Override
    public BigDecimal asDecimal() {
      return getValue();
    }
  
    @SuppressWarnings("null")
    @Override
    public BigInteger asInteger() {
      return getValue().toBigInteger();
    }
  
    @SuppressWarnings("null")
    @Override
    public INumericItem abs() {
      return new DecimalItemImpl(getValue().abs());
    }
  
    @SuppressWarnings("null")
    @Override
    public IIntegerItem ceiling() {
      return IIntegerItem.valueOf(getValue().setScale(0, RoundingMode.CEILING).toBigIntegerExact());
    }
  
    @SuppressWarnings("null")
    @Override
    public IIntegerItem floor() {
      return IIntegerItem.valueOf(getValue().setScale(0, RoundingMode.FLOOR).toBigIntegerExact());
    }
  
    @Override
    public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + getValue().hashCode();
      return result;
    }
  
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
       return true; // NOPMD readability
     } else if (obj == null) {
       return false; // NOPMD readability
     } else if (getClass() != obj.getClass()) {
       return false; // NOPMD readability
     }
     DecimalItemImpl other = (DecimalItemImpl) obj;
     return getValue().equals(other.getValue());
   }
 
 }