/*
    * SPDX-FileCopyrightText: none
    * SPDX-License-Identifier: CC0-1.0
    */
   
   package dev.metaschema.core.metapath.item.atomic.impl;
   
   import dev.metaschema.core.datatype.IDataTypeAdapter;
   import dev.metaschema.core.datatype.adapter.MetaschemaDataTypeProvider;
  import dev.metaschema.core.metapath.impl.AbstractMapKey;
  import dev.metaschema.core.metapath.item.atomic.AbstractAtomicItemBase;
  import dev.metaschema.core.metapath.item.atomic.IBooleanItem;
  import dev.metaschema.core.metapath.item.atomic.IStringItem;
  import dev.metaschema.core.metapath.item.function.IMapKey;
  import dev.metaschema.core.metapath.item.function.IOpaqueMapKey;
  import edu.umd.cs.findbugs.annotations.NonNull;
  
  /**
   * An implementation of a Metapath atomic item with a boolean value.
   */
  public class BooleanItemImpl
      extends AbstractAtomicItemBase<Boolean>
      implements IBooleanItem {
    @NonNull
    private static final String TRUE_STRING = "true";
    @NonNull
    private static final String FALSE_STRING = "false";
    @NonNull
    private static final IStringItem TRUE_STRING_ITEM = IStringItem.valueOf(TRUE_STRING);
    @NonNull
    private static final IStringItem FALSE_STRING_ITEM = IStringItem.valueOf(FALSE_STRING);
  
    private final boolean booleanValue;
  
    /**
     * Construct a new item with the provided {@code value}.
     *
     * @param value
     *          the value to wrap
     */
    public BooleanItemImpl(boolean value) {
      this.booleanValue = value;
    }
  
    @Override
    public Boolean getValue() {
      return toBoolean();
    }
  
    @Override
    public boolean toBoolean() {
      return booleanValue;
    }
  
    @Override
    public String asString() {
      return toBoolean() ? TRUE_STRING : FALSE_STRING;
    }
  
    @Override
    public IStringItem asStringItem() {
      return toBoolean() ? TRUE_STRING_ITEM : FALSE_STRING_ITEM;
    }
  
    @Override
    public IDataTypeAdapter<Boolean> getJavaTypeAdapter() {
      return MetaschemaDataTypeProvider.BOOLEAN;
    }
  
    @Override
    protected String getValueSignature() {
      return asString();
    }
  
    @Override
    public IMapKey asMapKey() {
      return new MapKey();
    }
  
    @Override
    public int hashCode() {
      return Boolean.hashCode(booleanValue);
    }
  
    @Override
    public boolean equals(Object obj) {
      return this == obj
          || obj instanceof IBooleanItem && compareTo((IBooleanItem) obj) == 0;
    }
  
    private final class MapKey
        extends AbstractMapKey
        implements IOpaqueMapKey {
      @Override
      public IBooleanItem getKey() {
        return BooleanItemImpl.this;
      }
    }
  }