/*

 * 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.expr.BooleanLiteralExpr;

import com.github.javaparser.ast.expr.Expression;

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

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

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.DoStmtMetaModel;

import com.github.javaparser.metamodel.JavaParserMetaModel;

import java.util.Optional;

import java.util.function.Consumer;

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

/**

 * A do-while.

 * <br>{@code do { ... } while ( a==0 );}

 *

 * @author Julio Vilmar Gesser

 */

public class DoStmt extends Statement implements NodeWithBody<DoStmt>, NodeWithCondition<DoStmt> {

    private Statement body;

    private Expression condition;

    public DoStmt() {

        this(null, new ReturnStmt(), new BooleanLiteralExpr());

    }

    @AllFieldsConstructor

    public DoStmt(final Statement body, final Expression condition) {

        this(null, body, condition);

    }

    /**

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

     */

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

    public DoStmt(TokenRange tokenRange, Statement body, Expression condition) {

        super(tokenRange);

        setBody(body);

        setCondition(condition);

        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 Statement getBody() {

        return body;

    }

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

    public Expression getCondition() {

        return condition;

    }

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

    public DoStmt setBody(final Statement body) {

        assertNotNull(body);

        if (body == this.body) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.BODY, this.body, body);

        if (this.body != null)

            this.body.setParentNode(null);

        this.body = body;

        setAsParentNodeOf(body);

        return this;

    }

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

    public DoStmt setCondition(final Expression condition) {

        assertNotNull(condition);

        if (condition == this.condition) {

            return this;

        }

        notifyPropertyChange(ObservableProperty.CONDITION, this.condition, condition);

        if (this.condition != null)

            this.condition.setParentNode(null);

        this.condition = condition;

        setAsParentNodeOf(condition);

        return this;

    }

    @Override

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

    public boolean remove(Node node) {

        if (node == null)

            return false;

        return super.remove(node);

    }

    @Override

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

    public DoStmt clone() {

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

    }

    @Override

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

    public DoStmtMetaModel getMetaModel() {

        return JavaParserMetaModel.doStmtMetaModel;

    }

    @Override

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

    public boolean replace(Node node, Node replacementNode) {

        if (node == null)

            return false;

        if (node == body) {

            setBody((Statement) replacementNode);

            return true;

        }

        if (node == condition) {

            setCondition((Expression) replacementNode);

            return true;

        }

        return super.replace(node, replacementNode);

    }

    @Override

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

    public boolean isDoStmt() {

        return true;

    }

    @Override

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

    public DoStmt asDoStmt() {

        return this;

    }

    @Override

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

    public void ifDoStmt(Consumer<DoStmt> action) {

        action.accept(this);

    }

    @Override

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

    public Optional<DoStmt> toDoStmt() {

        return Optional.of(this);

    }

}