/*
    * SPDX-FileCopyrightText: none
    * SPDX-License-Identifier: CC0-1.0
    */
   
   package dev.metaschema.core.metapath.cst.path;
   
   import dev.metaschema.core.metapath.DynamicContext;
   import dev.metaschema.core.metapath.cst.AbstractExpression;
  import dev.metaschema.core.metapath.cst.IExpressionVisitor;
  import dev.metaschema.core.metapath.item.ISequence;
  import dev.metaschema.core.metapath.item.ItemUtils;
  import dev.metaschema.core.metapath.item.node.INodeItem;
  import dev.metaschema.core.metapath.type.IItemType;
  import dev.metaschema.core.util.ObjectUtils;
  import edu.umd.cs.findbugs.annotations.NonNull;
  
  /**
   * The CST node for a Metapath
   * <a href="https://www.w3.org/TR/xpath-31/#dt-expanded-qname">expanded QName
   * name test</a>.
   */
  @SuppressWarnings("PMD.TestClassWithoutTestCases")
  public class KindNodeTest
      extends AbstractExpression
      implements INodeTestExpression {
  
    @NonNull
    private final IItemType type;
  
    /**
     * Construct a new kind test expression.
     *
     * @param text
     *          the parsed text of the expression
     * @param type
     *          the expected item type to test against
     */
    public KindNodeTest(@NonNull String text, @NonNull IItemType type) {
      super(text);
      this.type = type;
    }
  
    @Override
    public <RESULT, CONTEXT> RESULT accept(IExpressionVisitor<RESULT, CONTEXT> visitor, CONTEXT context) {
      return visitor.visitKindNodeTest(this, context);
    }
  
    @Override
    protected ISequence<? extends INodeItem> evaluate(DynamicContext dynamicContext, ISequence<?> focus) {
      return ISequence.of(filterStream(ObjectUtils.notNull(focus.stream()
          .map(item -> ItemUtils.checkItemIsNodeItem(dynamicContext, item)))));
    }
  
    @SuppressWarnings("null")
    @Override
    public String toCSTString() {
      return String.format("%s[kind=%s]", getClass().getName(), type.toSignature());
    }
  
    @Override
    public boolean match(INodeItem item) {
      return type.isInstance(item);
    }
  }