/*

 * Copyright (c) 2001, 2016, 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

 * questions.

 */

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

import java.io.*;

import java.util.*;

import javax.lang.model.element.Modifier;

import javax.lang.model.element.PackageElement;

import javax.lang.model.element.TypeElement;

import javax.lang.model.element.VariableElement;

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

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.formats.html.markup.StringContent;

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

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

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

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

/**

 * Write the Constants Summary Page in HTML format.

 *

 *  <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 Jamie Ho

 * @author Bhavesh Patel (Modified)

 */

public class ConstantsSummaryWriterImpl extends HtmlDocletWriter implements ConstantsSummaryWriter {

    /**

     * The configuration used in this run of the standard doclet.

     */

    ConfigurationImpl configuration;

    /**

     * The current class being documented.

     */

    private TypeElement currentTypeElement;

    private final String constantsTableSummary;

    private final List<String> constantsTableHeader;

    /**

     * The HTML tree for main tag.

     */

    private HtmlTree mainTree = HtmlTree.MAIN();

    /**

     * The HTML tree for constant values summary.

     */

    private HtmlTree summaryTree;

    /**

     * Construct a ConstantsSummaryWriter.

     * @param configuration the configuration used in this run

     *        of the standard doclet.

     */

    public ConstantsSummaryWriterImpl(ConfigurationImpl configuration) {

        super(configuration, DocPaths.CONSTANT_VALUES);

        this.configuration = configuration;

        constantsTableSummary = configuration.getText("doclet.Constants_Table_Summary",

                configuration.getText("doclet.Constants_Summary"));

        constantsTableHeader = new ArrayList<>();

        constantsTableHeader.add(getModifierTypeHeader());

        constantsTableHeader.add(configuration.getText("doclet.ConstantField"));

        constantsTableHeader.add(configuration.getText("doclet.Value"));

    }

    /**

     * {@inheritDoc}

     */

    public Content getHeader() {

        String label = configuration.getText("doclet.Constants_Summary");

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

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

                ? HtmlTree.HEADER()

                : bodyTree;

        addTop(htmlTree);

        addNavLinks(true, htmlTree);

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

            bodyTree.addContent(htmlTree);

        }

        return bodyTree;

    }

    /**

     * {@inheritDoc}

     */

    public Content getContentsHeader() {

        return new HtmlTree(HtmlTag.UL);

    }

    /**

     * {@inheritDoc}

     */

    public void addLinkToPackageContent(PackageElement pkg,

            Set<PackageElement> printedPackageHeaders, Content contentListTree) {

        //add link to summary

        Content link;

        if (pkg.isUnnamed()) {

            link = getHyperLink(getDocLink(

                    SectionName.UNNAMED_PACKAGE_ANCHOR),

                    contents.defaultPackageLabel, "", "");

        } else {

            String parsedPackageName = utils.parsePackageName(pkg);

            Content packageNameContent = getPackageLabel(parsedPackageName);

            packageNameContent.addContent(".*");

            link = getHyperLink(DocLink.fragment(parsedPackageName),

                    packageNameContent, "", "");

            PackageElement abbrevPkg = configuration.workArounds.getAbbreviatedPackageElement(pkg);

            printedPackageHeaders.add(abbrevPkg);

        }

        contentListTree.addContent(HtmlTree.LI(link));

    }

    /**

     * {@inheritDoc}

     */

    public void addContentsList(Content contentTree, Content contentListTree) {

        Content titleContent = contents.constantsSummaryTitle;

        Content pHeading = HtmlTree.HEADING(HtmlConstants.TITLE_HEADING, true,

                HtmlStyle.title, titleContent);

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

        Content headingContent = contents.contentsHeading;

        Content heading = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING, true,

                headingContent);

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

            HtmlTree section = HtmlTree.SECTION(heading);

            section.addContent(contentListTree);

            div.addContent(section);

            mainTree.addContent(div);

        } else {

            div.addContent(heading);

            div.addContent(contentListTree);

            contentTree.addContent(div);

        }

    }

    /**

     * {@inheritDoc}

     */

    public Content getConstantSummaries() {

        HtmlTree summariesDiv = new HtmlTree(HtmlTag.DIV);

        summariesDiv.addStyle(HtmlStyle.constantValuesContainer);

        return summariesDiv;

    }

    /**

     * {@inheritDoc}

     */

    public void addPackageName(PackageElement pkg, Content summariesTree, boolean first) {

        Content pkgNameContent;

        if (!first && configuration.allowTag(HtmlTag.SECTION)) {

            summariesTree.addContent(summaryTree);

        }

        if (pkg.isUnnamed()) {

            summariesTree.addContent(getMarkerAnchor(

                    SectionName.UNNAMED_PACKAGE_ANCHOR));

            pkgNameContent = contents.defaultPackageLabel;

        } else {

            String parsedPackageName = utils.parsePackageName(pkg);

            summariesTree.addContent(getMarkerAnchor(parsedPackageName));

            pkgNameContent = getPackageLabel(parsedPackageName);

        }

        Content headingContent = new StringContent(".*");

        Content heading = HtmlTree.HEADING(HtmlConstants.PACKAGE_HEADING, true,

                pkgNameContent);

        heading.addContent(headingContent);

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

            summaryTree = HtmlTree.SECTION(heading);

        } else {

            summariesTree.addContent(heading);

        }

    }

    /**

     * {@inheritDoc}

     */

    public Content getClassConstantHeader() {

        HtmlTree ul = new HtmlTree(HtmlTag.UL);

        ul.addStyle(HtmlStyle.blockList);

        return ul;

    }

    /**

     * {@inheritDoc}

     */

    public void addClassConstant(Content summariesTree, Content classConstantTree) {

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

            summaryTree.addContent(classConstantTree);

        } else {

            summariesTree.addContent(classConstantTree);

        }

    }

    /**

     * Get the table caption and header for the constant summary table

     *

     * @param typeElement the TypeElement to be documented

     * @return constant members header content

     */

    public Content getConstantMembersHeader(TypeElement typeElement) {

        //generate links backward only to public classes.

        Content classlink = (utils.isPublic(typeElement) || utils.isProtected(typeElement)) ?

            getLink(new LinkInfoImpl(configuration,

                    LinkInfoImpl.Kind.CONSTANT_SUMMARY, typeElement)) :

            new StringContent(utils.getFullyQualifiedName(typeElement));

        PackageElement enclosingPackage  = utils.containingPackage(typeElement);

        if (!enclosingPackage.isUnnamed()) {

            Content cb = new ContentBuilder();

            cb.addContent(enclosingPackage.getQualifiedName());

            cb.addContent(".");

            cb.addContent(classlink);

            return getClassName(cb);

        } else {

            return getClassName(classlink);

        }

    }

    /**

     * Get the class name in the table caption and the table header.

     *

     * @param classStr the class name to print.

     * @return the table caption and header

     */

    protected Content getClassName(Content classStr) {

        Content caption = getTableCaption(classStr);

        Content table = (configuration.isOutputHtml5())

                ? HtmlTree.TABLE(HtmlStyle.constantsSummary, caption)

                : HtmlTree.TABLE(HtmlStyle.constantsSummary, constantsTableSummary, caption);

        table.addContent(getSummaryTableHeader(constantsTableHeader, "col"));

        return table;

    }

    /**

     * {@inheritDoc}

     */

    public void addConstantMembers(TypeElement typeElement, Collection<VariableElement> fields,

            Content classConstantTree) {

        currentTypeElement = typeElement;

        Content tbody = new HtmlTree(HtmlTag.TBODY);

        boolean altColor = true;

        for (VariableElement field : fields) {

            HtmlTree tr = new HtmlTree(HtmlTag.TR);

            tr.addStyle(altColor ? HtmlStyle.altColor : HtmlStyle.rowColor);

            addConstantMember(field, tr);

            tbody.addContent(tr);

            altColor = !altColor;

        }

        Content table = getConstantMembersHeader(typeElement);

        table.addContent(tbody);

        Content li = HtmlTree.LI(HtmlStyle.blockList, table);

        classConstantTree.addContent(li);

    }

    /**

     * Add the row for the constant summary table.

     *

     * @param member the field to be documented.

     * @param trTree an htmltree object for the table row

     */

    private void addConstantMember(VariableElement member, HtmlTree trTree) {

        trTree.addContent(getTypeColumn(member));

        trTree.addContent(getNameColumn(member));

        trTree.addContent(getValue(member));

    }

    /**

     * Get the type column for the constant summary table row.

     *

     * @param member the field to be documented.

     * @return the type column of the constant table row

     */

    private Content getTypeColumn(VariableElement member) {

        Content anchor = getMarkerAnchor(currentTypeElement.getQualifiedName() +

                "." + member.getSimpleName());

        Content tdType = HtmlTree.TD(HtmlStyle.colFirst, anchor);

        Content code = new HtmlTree(HtmlTag.CODE);

        for (Modifier mod : member.getModifiers()) {

            Content modifier = new StringContent(mod.toString());

            code.addContent(modifier);

            code.addContent(Contents.SPACE);

        }

        Content type = getLink(new LinkInfoImpl(configuration,

                LinkInfoImpl.Kind.CONSTANT_SUMMARY, member.asType()));

        code.addContent(type);

        tdType.addContent(code);

        return tdType;

    }

    /**

     * Get the name column for the constant summary table row.

     *

     * @param member the field to be documented.

     * @return the name column of the constant table row

     */

    private Content getNameColumn(VariableElement member) {

        Content nameContent = getDocLink(LinkInfoImpl.Kind.CONSTANT_SUMMARY,

                member, member.getSimpleName(), false);

        Content code = HtmlTree.CODE(nameContent);

        return HtmlTree.TD(code);

    }

    /**

     * Get the value column for the constant summary table row.

     *

     * @param member the field to be documented.

     * @return the value column of the constant table row

     */

    private Content getValue(VariableElement member) {

        String value = utils.constantValueExpresion(member);

        Content valueContent = new StringContent(value);

        Content code = HtmlTree.CODE(valueContent);

        return HtmlTree.TD(HtmlStyle.colLast, code);

    }

    /**

     * {@inheritDoc}

     */

    public void addConstantSummaries(Content contentTree, Content summariesTree) {

        if (configuration.allowTag(HtmlTag.SECTION) && summaryTree != null) {

            summariesTree.addContent(summaryTree);

        }

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

            mainTree.addContent(summariesTree);

            contentTree.addContent(mainTree);

        } else {

            contentTree.addContent(summariesTree);

        }

    }

    /**

     * {@inheritDoc}

     */

    public void addFooter(Content contentTree) {

        Content htmlTree = (configuration.allowTag(HtmlTag.FOOTER))

                ? HtmlTree.FOOTER()

                : contentTree;

        addNavLinks(false, htmlTree);

        addBottom(htmlTree);

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

            contentTree.addContent(htmlTree);

        }

    }

    /**

     * {@inheritDoc}

     */

        printHtmlDocument(null, true, contentTree);

    }

}