/*

 * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

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 */

package jdk.javadoc.internal.doclets.formats.html;

import javax.lang.model.element.PackageElement;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlConstants;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlStyle;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTag;

import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTree;

import jdk.javadoc.internal.doclets.toolkit.Content;

import jdk.javadoc.internal.doclets.toolkit.util.ClassTree;

import jdk.javadoc.internal.doclets.toolkit.util.DocFileIOException;

import jdk.javadoc.internal.doclets.toolkit.util.DocPath;

import jdk.javadoc.internal.doclets.toolkit.util.DocPaths;

/**

 * Class to generate Tree page for a package. The name of the file generated is

 * "package-tree.html" and it is generated in the respective package directory.

 *

 *  <p><b>This is NOT part of any supported API.

 *  If you write code that depends on this, you do so at your own risk.

 *  This code and its internal interfaces are subject to change or

 *  deletion without notice.</b>

 *

 * @author Atul M Dambalkar

 * @author Bhavesh Patel (Modified)

 */

public class PackageTreeWriter extends AbstractTreeWriter {

    /**

     * Package for which tree is to be generated.

     */

    protected PackageElement packageElement;

    /**

     * The previous package name in the alpha-order list.

     */

    protected PackageElement prev;

    /**

     * The next package name in the alpha-order list.

     */

    protected PackageElement next;

    /**

     * Constructor.

     * @param configuration the configuration

     * @param path the docpath to generate files into

     * @param packageElement the current package

     * @param prev the previous package

     * @param next the next package

     */

    public PackageTreeWriter(HtmlConfiguration configuration,

                             DocPath path,

                             PackageElement packageElement,

                             PackageElement prev, PackageElement next) {

        super(configuration, path,

              new ClassTree(configuration.typeElementCatalog.allClasses(packageElement), configuration));

        this.packageElement = packageElement;

        this.prev = prev;

        this.next = next;

    }

    /**

     * Construct a PackageTreeWriter object and then use it to generate the

     * package tree page.

     *

     * @param configuration the configuration for this run.

     * @param pkg      Package for which tree file is to be generated.

     * @param prev     Previous package in the alpha-ordered list.

     * @param next     Next package in the alpha-ordered list.

     * @param noDeprecated  If true, do not generate any information for

     * deprecated classe or interfaces.

     * @throws DocFileIOException if there is a problem generating the package tree page

     */

    public static void generate(HtmlConfiguration configuration,

                                PackageElement pkg, PackageElement prev,

                                PackageElement next, boolean noDeprecated)

            throws DocFileIOException {

        DocPath path = DocPath.forPackage(pkg).resolve(DocPaths.PACKAGE_TREE);

        PackageTreeWriter packgen = new PackageTreeWriter(configuration, path, pkg, prev, next);

        packgen.generatePackageTreeFile();

    }

    /**

     * Generate a separate tree file for each package.

     * @throws DocFileIOException if there is a problem generating the package tree file

     */

    protected void generatePackageTreeFile() throws DocFileIOException {

        HtmlTree body = getPackageTreeHeader();

        HtmlTree htmlTree = (configuration.allowTag(HtmlTag.MAIN))

                ? HtmlTree.MAIN()

                : body;

        Content headContent = contents.getContent("doclet.Hierarchy_For_Package",

                utils.getPackageName(packageElement));

        Content heading = HtmlTree.HEADING(HtmlConstants.TITLE_HEADING, false,

                HtmlStyle.title, headContent);

        Content div = HtmlTree.DIV(HtmlStyle.header, heading);

        if (configuration.packages.size() > 1) {

            addLinkToMainTree(div);

        }

        htmlTree.addContent(div);

        HtmlTree divTree = new HtmlTree(HtmlTag.DIV);

        divTree.setStyle(HtmlStyle.contentContainer);

        addTree(classtree.baseClasses(), "doclet.Class_Hierarchy", divTree);

        addTree(classtree.baseInterfaces(), "doclet.Interface_Hierarchy", divTree);

        addTree(classtree.baseAnnotationTypes(), "doclet.Annotation_Type_Hierarchy", divTree);

        addTree(classtree.baseEnums(), "doclet.Enum_Hierarchy", divTree, true);

        htmlTree.addContent(divTree);

        if (configuration.allowTag(HtmlTag.MAIN)) {

            body.addContent(htmlTree);

        }

        HtmlTree tree = (configuration.allowTag(HtmlTag.FOOTER))

                ? HtmlTree.FOOTER()

                : body;

        addNavLinks(false, tree);

        addBottom(tree);

        if (configuration.allowTag(HtmlTag.FOOTER)) {

            body.addContent(tree);

        }

        printHtmlDocument(null, true, body);

    }

    /**

     * Get the package tree header.

     *

     * @return a content tree for the header

     */

    protected HtmlTree getPackageTreeHeader() {

        String packageName = packageElement.isUnnamed() ? "" : utils.getPackageName(packageElement);

        String title = packageName + " " + configuration.getText("doclet.Window_Class_Hierarchy");

        HtmlTree bodyTree = getBody(true, getWindowTitle(title));

        HtmlTree htmlTree = (configuration.allowTag(HtmlTag.HEADER))

                ? HtmlTree.HEADER()

                : bodyTree;

        addTop(htmlTree);

        addNavLinks(true, htmlTree);

        if (configuration.allowTag(HtmlTag.HEADER)) {

            bodyTree.addContent(htmlTree);

        }

        return bodyTree;

    }

    /**

     * Add a link to the tree for all the packages.

     *

     * @param div the content tree to which the link will be added

     */

    protected void addLinkToMainTree(Content div) {

        Content span = HtmlTree.SPAN(HtmlStyle.packageHierarchyLabel,

                contents.packageHierarchies);

        div.addContent(span);

        HtmlTree ul = new HtmlTree (HtmlTag.UL);

        ul.setStyle(HtmlStyle.horizontal);

        ul.addContent(getNavLinkMainTree(configuration.getText("doclet.All_Packages")));

        div.addContent(ul);

    }

    /**

     * Get link for the previous package tree file.

     *

     * @return a content tree for the link

     */

    @Override

    protected Content getNavLinkPrevious() {

        if (prev == null) {

            return getNavLinkPrevious(null);

        } else {

            DocPath path = DocPath.relativePath(packageElement, prev);

            return getNavLinkPrevious(path.resolve(DocPaths.PACKAGE_TREE));

        }

    }

    /**

     * Get link for the next package tree file.

     *

     * @return a content tree for the link

     */

    @Override

    protected Content getNavLinkNext() {

        if (next == null) {

            return getNavLinkNext(null);

        } else {

            DocPath path = DocPath.relativePath(packageElement, next);

            return getNavLinkNext(path.resolve(DocPaths.PACKAGE_TREE));

        }

    }

    /**

     * Get the module link.

     *

     * @return a content tree for the module link

     */

    @Override

    protected Content getNavLinkModule() {

        Content linkContent = getModuleLink(utils.elementUtils.getModuleOf(packageElement),

                contents.moduleLabel);

        Content li = HtmlTree.LI(linkContent);

        return li;

    }

    /**

     * Get link to the package summary page for the package of this tree.

     *

     * @return a content tree for the package link

     */

    @Override

    protected Content getNavLinkPackage() {

                contents.packageLabel);

        Content li = HtmlTree.LI(linkContent);

        return li;

    }

}