/*

 * Copyright (C) 2007-2010 Júlio Vilmar Gesser.

 * Copyright (C) 2011, 2013-2021 The JavaParser Team.

 *

 * This file is part of JavaParser.

 *

 * JavaParser can be used either under the terms of

 * a) the GNU Lesser General Public License as published by

 *     the Free Software Foundation, either version 3 of the License, or

 *     (at your option) any later version.

 * b) the terms of the Apache License

 *

 * You should have received a copy of both licenses in LICENCE.LGPL and

 * LICENCE.APACHE. Please refer to those files for details.

 *

 * JavaParser 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 Lesser General Public License for more details.

 */

package com.github.javaparser.ast.stmt;

import com.github.javaparser.TokenRange;

import com.github.javaparser.ast.AllFieldsConstructor;

import com.github.javaparser.ast.Generated;

import com.github.javaparser.ast.Node;

import com.github.javaparser.ast.NodeList;

import com.github.javaparser.ast.nodeTypes.NodeWithStatements;

import com.github.javaparser.ast.observer.ObservableProperty;

import com.github.javaparser.ast.visitor.CloneVisitor;

import com.github.javaparser.ast.visitor.GenericVisitor;

import com.github.javaparser.ast.visitor.VoidVisitor;

import com.github.javaparser.metamodel.BlockStmtMetaModel;

import com.github.javaparser.metamodel.JavaParserMetaModel;

import java.util.Optional;

import java.util.function.Consumer;

import static com.github.javaparser.utils.Utils.assertNotNull;

/**

 * Statements in between { and }.

 *

 * @author Julio Vilmar Gesser

 */

public class BlockStmt extends Statement implements NodeWithStatements<BlockStmt> {

    private NodeList<Statement> statements;

    public BlockStmt() {

        this(null, new NodeList<>());

    }

    @AllFieldsConstructor

    public BlockStmt(final NodeList<Statement> statements) {

        this(null, statements);

    }

    /**

     * This constructor is used by the parser and is considered private.

     */

    @Generated("com.github.javaparser.generator.core.node.MainConstructorGenerator")

    public BlockStmt(TokenRange tokenRange, NodeList<Statement> statements) {

        super(tokenRange);

        setStatements(statements);

        customInitialization();

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.AcceptGenerator")

    public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) {

        return v.visit(this, arg);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.AcceptGenerator")

    public <A> void accept(final VoidVisitor<A> v, final A arg) {

        v.visit(this, arg);

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public NodeList<Statement> getStatements() {

        return statements;

    }

    @Generated("com.github.javaparser.generator.core.node.PropertyGenerator")

    public BlockStmt setStatements(final NodeList<Statement> statements) {

        assertNotNull(statements);

        if (statements == this.statements) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.STATEMENTS, this.statements, statements);

        if (this.statements != null)

            this.statements.setParentNode(null);

        this.statements = statements;

        setAsParentNodeOf(statements);

        return this;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.RemoveMethodGenerator")

    public boolean remove(Node node) {

        if (node == null)

            return false;

        for (int i = 0; i < statements.size(); i++) {

            if (statements.get(i) == node) {

                statements.remove(i);

                return true;

            }

        }

        return super.remove(node);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.CloneGenerator")

    public BlockStmt clone() {

        return (BlockStmt) accept(new CloneVisitor(), null);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.GetMetaModelGenerator")

    public BlockStmtMetaModel getMetaModel() {

        return JavaParserMetaModel.blockStmtMetaModel;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.ReplaceMethodGenerator")

    public boolean replace(Node node, Node replacementNode) {

        if (node == null)

            return false;

        for (int i = 0; i < statements.size(); i++) {

            if (statements.get(i) == node) {

                statements.set(i, (Statement) replacementNode);

                return true;

            }

        }

        return super.replace(node, replacementNode);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")

    public boolean isBlockStmt() {

        return true;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")

    public BlockStmt asBlockStmt() {

        return this;

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")

    public void ifBlockStmt(Consumer<BlockStmt> action) {

        action.accept(this);

    }

    @Override

    @Generated("com.github.javaparser.generator.core.node.TypeCastingGenerator")

    public Optional<BlockStmt> toBlockStmt() {

        return Optional.of(this);

    }

}