/*

 * 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.printer.lexicalpreservation;

import com.github.javaparser.TokenTypes;

import com.github.javaparser.ast.type.PrimitiveType;

import com.github.javaparser.printer.concretesyntaxmodel.CsmElement;

import com.github.javaparser.printer.concretesyntaxmodel.CsmIndent;

import com.github.javaparser.printer.concretesyntaxmodel.CsmToken;

import com.github.javaparser.printer.concretesyntaxmodel.CsmUnindent;

public class Kept implements DifferenceElement {

    private final CsmElement element;

    Kept(CsmElement element) {

        this.element = element;

    }

    @Override

    public String toString() {

        return "Kept{" + element + '}';

    }

    @Override

    public boolean equals(Object o) {

        if (this == o) return true;

        if (o == null || getClass() != o.getClass()) return false;

        Kept kept = (Kept) o;

        return element.equals(kept.element);

    }

    @Override

    public int hashCode() {

        return element.hashCode();

    }

    @Override

    public CsmElement getElement() {

        return element;

    }

    public int getTokenType() {

        if (isToken()) {

            CsmToken csmToken = (CsmToken) element;

            return csmToken.getTokenType();

        }

        throw new IllegalStateException("Kept is not a " + CsmToken.class.getSimpleName());

    }

    @Override

    public boolean isAdded() {

        return false;

    }

    public boolean isIndent() { return element instanceof CsmIndent; }

    public boolean isUnindent() { return element instanceof CsmUnindent; }

    public boolean isToken() { return element instanceof CsmToken; }

    public boolean isChild() { return element instanceof LexicalDifferenceCalculator.CsmChild; }

    public boolean isPrimitiveType() {

        if (isChild()) {

            LexicalDifferenceCalculator.CsmChild csmChild = (LexicalDifferenceCalculator.CsmChild) element;

            return csmChild.getChild() instanceof PrimitiveType;

        }

        return false;

    }

    public boolean isWhiteSpace() {

        if(isToken()) {

            CsmToken csmToken = (CsmToken) element;

            return csmToken.isWhiteSpace();

        }

        return false;

    }

    public boolean isWhiteSpaceOrComment() {

        if (isToken()) {

            CsmToken csmToken = (CsmToken) element;

            return TokenTypes.isWhitespaceOrComment(csmToken.getTokenType());

        }

        return false;

    }

    public boolean isNewLine() {

        if(isToken()) {

            CsmToken csmToken = (CsmToken) element;

            return csmToken.isNewLine();

        }

        return false;

    }

    @Override

    public boolean isRemoved() {

        return false;

    }

}