/*

 * 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.concretesyntaxmodel;

import java.util.Collection;

import java.util.Iterator;

import com.github.javaparser.ast.Node;

import com.github.javaparser.ast.NodeList;

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

import com.github.javaparser.printer.ConcreteSyntaxModel;

import com.github.javaparser.printer.SourcePrinter;

public class CsmList implements CsmElement {

    private final ObservableProperty property;

    private final CsmElement separatorPost;

    private final CsmElement separatorPre;

    private final CsmElement preceeding;

    private final CsmElement following;

    public ObservableProperty getProperty() {

        return property;

    }

    public CsmElement getSeparatorPost() {

        return separatorPost;

    }

    public CsmElement getSeparatorPre() {

        return separatorPre;

    }

    public CsmElement getPreceeding() {

        return preceeding;

    }

    public CsmElement getFollowing() {

        return following;

    }

    public CsmList(ObservableProperty property, CsmElement separator) {

        this(property, new CsmNone(), separator, new CsmNone(), new CsmNone());

    }

    public CsmList(ObservableProperty property) {

        this(property, new CsmNone(), new CsmNone(), new CsmNone(), new CsmNone());

    }

    public CsmList(ObservableProperty property, CsmElement separatorPre, CsmElement separatorPost, CsmElement preceeding, CsmElement following) {

        this.property = property;

        this.separatorPre = separatorPre;

        this.separatorPost = separatorPost;

        this.preceeding = preceeding;

        this.following = following;

    }

    @Override

    public void prettyPrint(Node node, SourcePrinter printer) {

        if (property.isAboutNodes()) {

            NodeList<? extends Node> nodeList = property.getValueAsMultipleReference(node);

            if (nodeList == null) {

                return;

            }

            if (!nodeList.isEmpty() && preceeding != null) {

                preceeding.prettyPrint(node, printer);

            }

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

                if (separatorPre != null && i != 0) {

                    separatorPre.prettyPrint(node, printer);

                }

                ConcreteSyntaxModel.genericPrettyPrint(nodeList.get(i), printer);

                if (separatorPost != null && i != (nodeList.size() - 1)) {

                    separatorPost.prettyPrint(node, printer);

                }

            }

            if (!nodeList.isEmpty() && following != null) {

                following.prettyPrint(node, printer);

            }

        } else {

            Collection<?> values = property.getValueAsCollection(node);

            if (values == null) {

                return;

            }

            if (!values.isEmpty() && preceeding != null) {

                preceeding.prettyPrint(node, printer);

            }

            for (Iterator<?> it = values.iterator(); it.hasNext(); ) {

                if (separatorPre != null && it.hasNext()) {

                    separatorPre.prettyPrint(node, printer);

                }

                printer.print(PrintingHelper.printToString(it.next()));

                if (separatorPost != null && it.hasNext()) {

                    separatorPost.prettyPrint(node, printer);

                }

            }

            if (!values.isEmpty() && following != null) {

                following.prettyPrint(node, printer);

            }

        }

    }

    @Override

    public String toString() {

        return String.format("%s(property:%s)", this.getClass().getSimpleName(), getProperty());

    }

}