publish.js

'use strict';

var doop = require('jsdoc/util/doop');
var env = require('jsdoc/env');
var fs = require('jsdoc/fs');
var helper = require('jsdoc/util/templateHelper');
var logger = require('jsdoc/util/logger');
var path = require('jsdoc/path');
var taffy = require('taffydb').taffy;
var template = require('jsdoc/template');
var util = require('util');

var htmlsafe = helper.htmlsafe;
var linkto = helper.linkto;
var resolveAuthorLinks = helper.resolveAuthorLinks;
var scopeToPunc = helper.scopeToPunc;
var hasOwnProp = Object.prototype.hasOwnProperty;

var data;
var view;

var outdir = path.normalize(env.opts.destination);

function find(spec) {
    return helper.find(data, spec);
}

function tutoriallink(tutorial) {
    return helper.toTutorial(tutorial, null, { tag: 'em', classname: 'disabled', prefix: 'Tutorial: ' });
}

function getAncestorLinks(doclet) {
    return helper.getAncestorLinks(data, doclet);
}

function hashToLink(doclet, hash) {
    if (!/^(#.+)/.test(hash)) { return hash; }

    var url = helper.createLink(doclet);

    url = url.replace(/(#.+|$)/, hash);
    return '<a href="' + url + '">' + hash + '</a>';
}

function needsSignature(doclet) {
    var needsSig = false;

    // function and class definitions always get a signature
    if (doclet.kind === 'function' || doclet.kind === 'class') {
        needsSig = true;
    }
    // typedefs that contain functions get a signature, too
    else if (doclet.kind === 'typedef' && doclet.type && doclet.type.names &&
        doclet.type.names.length) {
        for (var i = 0, l = doclet.type.names.length; i < l; i++) {
            if (doclet.type.names[i].toLowerCase() === 'function') {
                needsSig = true;
                break;
            }
        }
    }

    return needsSig;
}

function getSignatureAttributes(item) {
    var attributes = [];

    if (item.optional) {
        attributes.push('opt');
    }

    if (item.nullable === true) {
        attributes.push('nullable');
    }
    else if (item.nullable === false) {
        attributes.push('non-null');
    }

    return attributes;
}

function updateItemName(item) {
    var attributes = getSignatureAttributes(item);
    var itemName = item.name || '';

    if (item.variable) {
        itemName = '&hellip;' + itemName;
    }

    if (attributes && attributes.length) {
        itemName = util.format('%s<span class="signature-attributes">%s</span>', itemName,
            attributes.join(', '));
    }

    return itemName;
}

function addParamAttributes(params) {
    return params.filter(function (param) {
        return param.name && param.name.indexOf('.') === -1;
    }).map(updateItemName);
}

function buildItemTypeStrings(item) {
    var types = [];

    if (item && item.type && item.type.names) {
        item.type.names.forEach(function (name) {
            types.push(linkto(name, htmlsafe(name)));
        });
    }

    return types;
}

function buildAttribsString(attribs) {
    var attribsString = '';

    if (attribs && attribs.length) {
        attribsString = htmlsafe(attribs.join(', '));
    }

    return attribsString;
}

function addNonParamAttributes(items) {
    var types = [];

    items.forEach(function (item) {
        types = types.concat(buildItemTypeStrings(item));
    });

    return types;
}

function addSignatureParams(f) {
    var params = f.params ? addParamAttributes(f.params) : [];

    f.signature = util.format('%s(%s)', (f.signature || ''), params.join(', '));
}

function addSignatureReturns(f) {
    var attribs = [];
    var attribsString = '';
    var returnTypes = [];
    var returnTypesString = '';

    // jam all the return-type attributes into an array. this could create odd results (for example,
    // if there are both nullable and non-nullable return types), but let's assume that most people
    // who use multiple @return tags aren't using Closure Compiler type annotations, and vice-versa.
    if (f.returns) {
        f.returns.forEach(function (item) {
            helper.getAttribs(item).forEach(function (attrib) {
                if (attribs.indexOf(attrib) === -1) {
                    attribs.push(attrib);
                }
            });
        });

        attribsString = buildAttribsString(attribs);
    }

    if (f.returns) {
        returnTypes = addNonParamAttributes(f.returns);
    }
    if (returnTypes.length) {
        returnTypesString = util.format(' &rarr; %s{%s}', attribsString, returnTypes.join('|'));
    }

    f.signature = '<span class="signature">' + (f.signature || '') + '</span>' +
        '<span class="return-type-signature">' + returnTypesString + '</span>';
}

function addSignatureTypes(f) {
    var types = f.type ? buildItemTypeStrings(f) : [];

    f.signature = (f.signature || '') + '<span class="type-signature">' +
        (types.length ? '' + types.join('|') : '') + '</span>';
}

function addAttribs(f) {
    var attribs = helper.getAttribs(f);
    if (attribs.length) {
        var str = ''
        attribs.forEach(function(a) {
            str = str + `<span class="method-type-signature is-${a}">${a}</span>`;
        })
        f.attribs = str
    }
}

function shortenPaths(files, commonPrefix) {
    Object.keys(files).forEach(function (file) {
        files[file].shortened = files[file].resolved.replace(commonPrefix, '')
            // always use forward slashes
            .replace(/\\/g, '/');
    });

    return files;
}

function getPathFromDoclet(doclet) {
    if (!doclet.meta) {
        return null;
    }

    return doclet.meta.path && doclet.meta.path !== 'null' ?
        path.join(doclet.meta.path, doclet.meta.filename) :
        doclet.meta.filename;
}

function generate(title, kind, docs, filename, resolveLinks) {
    resolveLinks = resolveLinks === false ? false : true;

    var docData = {
        env: env,
        title: title,
        kind: kind,
        docs: docs
    };

    var outpath = path.join(outdir, filename),
        html = view.render('container.tmpl', docData);

    if (resolveLinks) {
        html = helper.resolveLinks(html); // turn {@link foo} into <a href="foodoc.html">foo</a>
    }

    fs.writeFileSync(outpath, html, 'utf8');
}

function generateSourceFiles(sourceFiles, encoding) {
    encoding = encoding || 'utf8';
    Object.keys(sourceFiles).forEach(function (file) {
        var source;
        // links are keyed to the shortened path in each doclet's `meta.shortpath` property
        var sourceOutfile = helper.getUniqueFilename(sourceFiles[file].shortened);
        helper.registerLink(sourceFiles[file].shortened, sourceOutfile);

        try {
            source = {
                kind: 'source',
                code: helper.htmlsafe(fs.readFileSync(sourceFiles[file].resolved, encoding))
            };
        }
        catch (e) {
            logger.error('Error while generating source file %s: %s', file, e.message);
        }

        generate(sourceFiles[file].shortened, 'source', [source], sourceOutfile,
            false);
    });
}

/**
 * Look for classes or functions with the same name as modules (which indicates that the module
 * exports only that class or function), then attach the classes or functions to the `module`
 * property of the appropriate module doclets. The name of each class or function is also updated
 * for display purposes. This function mutates the original arrays.
 *
 * @private
 * @param {Array.<module:jsdoc/doclet.Doclet>} doclets - The array of classes and functions to
 * check.
 * @param {Array.<module:jsdoc/doclet.Doclet>} modules - The array of module doclets to search.
 */
function attachModuleSymbols(doclets, modules) {
    var symbols = {};

    // build a lookup table
    doclets.forEach(function (symbol) {
        symbols[symbol.longname] = symbols[symbol.longname] || [];
        symbols[symbol.longname].push(symbol);
    });

    return modules.map(function (module) {
        if (symbols[module.longname]) {
            module.modules = symbols[module.longname]
                // Only show symbols that have a description. Make an exception for classes, because
                // we want to show the constructor-signature heading no matter what.
                .filter(function (symbol) {
                    return symbol.description || symbol.kind === 'class';
                })
                .map(function (symbol) {
                    symbol = doop(symbol);

                    if (symbol.kind === 'class' || symbol.kind === 'function') {
                        symbol.name = symbol.name.replace('module:', '(require("') + '"))';
                    }

                    return symbol;
                });
        }
    });
}

function buildMemberNav(items, itemHeading, itemsSeen, linktoFn) {
    var nav = []
    var conf = env.conf.templates || {}

    conf.default = conf.default || {}

    if (items && items.length) {
        var itemsNav = ""

        nav.push(buildNavHeading(itemHeading))

        items.forEach(function (item) {
            var methods = find({ kind: "function", memberof: item.longname })
            var members = find({ kind: "member", memberof: item.longname })
            var events = find({ kind: "event", memberof: item.longname })
            var displayName

            if (!hasOwnProp.call(item, "longname")) {
                nav.push(buildNavItem(linkfoFn('', item.name)))
                return
            }

            if (!hasOwnProp.call(itemsSeen, item.longname)) {
                if (!!conf.default.useLongnameInNav) {
                    displayName = item.longname

                    if (conf.default.useLongnameInNav > 0 && conf.default.useLongnameInNav !== true) {
                        var num = conf.default.useLongnameInNav
                        var cropped = item.longname.split(".").slice(-num).join(".")
                        if (cropped !== displayName) {
                            displayName = "..." + cropped
                        }
                    }
                } else {
                    displayName = item.name
                }

                displayName = displayName.replace(/^module:/g, "")

                if (itemHeading === 'Tutorials') {
                    nav.push(buildNavItem(linktoFn(item.longname, displayName)))
                } else {
                    nav.push(buildNavHeading(buildNavType(item.kind, linktoFn(item.longname, displayName))))
                }

                if (members.length) {
                    members.forEach(function (member) {
                        if (member.inherited && conf.showInheritedInNav === false) {
                            return
                        }
                        nav.push(buildNavItem(buildNavType(member.kind, linkto(member.longname, member.name))))
                    })
                }

                if (methods.length) {
                    methods.forEach(function (method) {
                        if (method.inherited && conf.showInheritedInNav === false) {
                            return
                        }
                        nav.push(buildNavItem(buildNavType(method.kind, linkto(method.longname, method.name))))
                    })
                }

                if (events.length) {
                    events.forEach(function (event) {
                        if (event.inherited && conf.showInheritedInNav === false) {
                            return
                        }
                        nav.push(buildNavItem(buildNavType(event.kind, linkto(event.longname, event.name))))
                    })
                }

                itemsSeen[item.longname] = true
            }
        })
    }

    if (nav.length > 0) {
        return '<ul>' + nav.join('') + '</ul>';
    } else {
        return '';
    }

    // return nav
}

function linktoTutorial(longName, name) {
    return tutoriallink(name);
}

function linktoExternal(longName, name) {
    return linkto(longName, name.replace(/(^"|"$)/g, ''));
}

/**
 * Create the navigation sidebar.
 * @param {object} members The members that will be used to create the sidebar.
 * @param {array<object>} members.classes
 * @param {array<object>} members.externals
 * @param {array<object>} members.globals
 * @param {array<object>} members.mixins
 * @param {array<object>} members.modules
 * @param {array<object>} members.namespaces
 * @param {array<object>} members.tutorials
 * @param {array<object>} members.events
 * @param {array<object>} members.interfaces
 * @return {array} The HTML for the navigation sidebar.
 */
function buildNav(members) {
    var nav = [];
    var seen = {};
    var seenTutorials = {};

    // console.log('--- members ----');
    // console.log(members.events);

    nav = nav.concat(buildMemberNav(members.tutorials, "Tutorials", seenTutorials, linktoTutorial));
    nav = nav.concat(buildMemberNav(members.classes, "Classes", seen, linkto));
    nav = nav.concat(buildMemberNav(members.modules, "Modules", {}, linkto));
    nav = nav.concat(buildMemberNav(members.externals, "Externals", seen, linktoExternal));
    nav = nav.concat(buildMemberNav(members.namespaces, "Namespaces", seen, linkto));
    nav = nav.concat(buildMemberNav(members.mixins, "Mixins", seen, linkto));
    nav = nav.concat(buildMemberNav(members.interfaces, "Interfaces", seen, linkto));

    if (members.globals.length) {
        nav.push(buildNavHeading(linkto('global', 'Globals')))

        members.globals.forEach(function (item) {
            if (!hasOwnProp.call(seen, item.longname)) {
                nav.push(buildNavItem(buildNavType(item.kind, linkto(item.longname, item.name))))
            }

            seen[item.longname] = true
        })
    }

    return nav.join('');
}

/**
    @param {TAFFY} taffyData See <http://taffydb.com/>.
    @param {object} opts
    @param {Tutorial} tutorials
 */
exports.publish = function (taffyData, opts, tutorials) {
    data = taffyData;

    var conf = env.conf.templates || {};
    conf.default = conf.default || {};

    var templatePath = path.normalize(opts.template);
    view = new template.Template(path.join(templatePath, 'tmpl'));

    // claim some special filenames in advance, so the All-Powerful Overseer of Filename Uniqueness
    // doesn't try to hand them out later
    var indexUrl = helper.getUniqueFilename('index');
    // don't call registerLink() on this one! 'index' is also a valid longname

    var globalUrl = helper.getUniqueFilename('global');
    helper.registerLink('global', globalUrl);

    // set up templating
    view.layout = conf.default.layoutFile ?
        path.getResourcePath(path.dirname(conf.default.layoutFile),
            path.basename(conf.default.layoutFile)) :
        'layout.tmpl';

    // set up tutorials for helper
    helper.setTutorials(tutorials);

    data = helper.prune(data);
    data.sort('longname, version, since');
    helper.addEventListeners(data);

    var sourceFiles = {};
    var sourceFilePaths = [];
    data().each(function (doclet) {
        doclet.attribs = '';

        if (doclet.examples) {
            doclet.examples = doclet.examples.map(function (example) {
                var caption, code;

                if (example.match(/^\s*<caption>([\s\S]+?)<\/caption>(\s*[\n\r])([\s\S]+)$/i)) {
                    caption = RegExp.$1;
                    code = RegExp.$3;
                }

                return {
                    caption: caption || '',
                    code: code || example
                };
            });
        }
        if (doclet.see) {
            doclet.see.forEach(function (seeItem, i) {
                doclet.see[i] = hashToLink(doclet, seeItem);
            });
        }

        // build a list of source files
        var sourcePath;
        if (doclet.meta) {
            sourcePath = getPathFromDoclet(doclet);
            sourceFiles[sourcePath] = {
                resolved: sourcePath,
                shortened: null
            };
            if (sourceFilePaths.indexOf(sourcePath) === -1) {
                sourceFilePaths.push(sourcePath);
            }
        }
    });

    // update outdir if necessary, then create outdir
    var packageInfo = (find({ kind: 'package' }) || [])[0];
    if (packageInfo && packageInfo.name) {
        outdir = path.join(outdir, packageInfo.name, (packageInfo.version || ''));
    }
    fs.mkPath(outdir);

    // copy the template's static files to outdir
    var fromDir = path.join(templatePath, 'static');
    var staticFiles = fs.ls(fromDir, 3);

    staticFiles.forEach(function (fileName) {
        var toDir = fs.toDir(fileName.replace(fromDir, outdir));
        fs.mkPath(toDir);
        fs.copyFileSync(fileName, toDir);
    });

    // copy user-specified static files to outdir
    var staticFilePaths;
    var staticFileFilter;
    var staticFileScanner;
    if (conf.default.staticFiles) {
        // The canonical property name is `include`. We accept `paths` for backwards compatibility
        // with a bug in JSDoc 3.2.x.
        staticFilePaths = conf.default.staticFiles.include ||
            conf.default.staticFiles.paths ||
            [];
        staticFileFilter = new (require('jsdoc/src/filter')).Filter(conf.default.staticFiles);
        staticFileScanner = new (require('jsdoc/src/scanner')).Scanner();

        staticFilePaths.forEach(function (filePath) {
            var extraStaticFiles;

            filePath = path.resolve(env.pwd, filePath);
            extraStaticFiles = staticFileScanner.scan([filePath], 10, staticFileFilter);

            extraStaticFiles.forEach(function (fileName) {
                var sourcePath = fs.toDir(filePath);
                var toDir = fs.toDir(fileName.replace(sourcePath, outdir));
                fs.mkPath(toDir);
                fs.copyFileSync(fileName, toDir);
            });
        });
    }

    if (sourceFilePaths.length) {
        sourceFiles = shortenPaths(sourceFiles, path.commonPrefix(sourceFilePaths));
    }
    data().each(function (doclet) {
        var url = helper.createLink(doclet);
        helper.registerLink(doclet.longname, url);

        // add a shortened version of the full path
        var docletPath;
        if (doclet.meta) {
            docletPath = getPathFromDoclet(doclet);
            docletPath = sourceFiles[docletPath].shortened;
            if (docletPath) {
                doclet.meta.shortpath = docletPath;
            }
        }
    });

    data().each(function (doclet) {
        var url = helper.longnameToUrl[doclet.longname];

        if (url.indexOf('#') > -1) {
            doclet.id = helper.longnameToUrl[doclet.longname].split(/#/).pop();
        }
        else {
            doclet.id = doclet.name;
        }

        if (needsSignature(doclet)) {
            addSignatureParams(doclet);
            addSignatureReturns(doclet);
            addAttribs(doclet);
        }
    });

    // do this after the urls have all been generated
    data().each(function (doclet) {
        doclet.ancestors = getAncestorLinks(doclet);

        if (doclet.kind === 'member') {
            addSignatureTypes(doclet);
            addAttribs(doclet);
        }

        if (doclet.kind === 'constant') {
            addSignatureTypes(doclet);
            addAttribs(doclet);
            doclet.kind = 'member';
        }
    });

    var members = helper.getMembers(data);
    members.tutorials = tutorials.children;

    // output pretty-printed source files by default
    var outputSourceFiles = conf.default && conf.default.outputSourceFiles !== false ? true :
        false;

    // add template helpers
    view.find = find;
    view.linkto = linkto;
    view.resolveAuthorLinks = resolveAuthorLinks;
    view.tutoriallink = tutoriallink;
    view.htmlsafe = htmlsafe;
    view.outputSourceFiles = outputSourceFiles;

    // once for all
    view.nav = buildNav(members);
    attachModuleSymbols(find({ longname: { left: 'module:' } }), members.modules);

    // generate the pretty-printed source files first so other pages can link to them
    if (outputSourceFiles) {
        generateSourceFiles(sourceFiles, opts.encoding);
    }

    if (members.globals.length) { generate('Global', '', [{ kind: 'globalobj' }], globalUrl); }

    // index page displays information from package.json and lists files
    var files = find({ kind: 'file' }),
        packages = find({ kind: 'package' });

    // Remove Page title for Main Page (set in Readme instead)
    generate('', '',
        packages.concat(
            [{ kind: 'mainpage', readme: opts.readme, longname: (opts.mainpagetitle) ? opts.mainpagetitle : 'Main Page' }]
        ).concat(files),
        indexUrl);

    // set up the lists that we'll use to generate pages
    var classes = taffy(members.classes);
    var modules = taffy(members.modules);
    var namespaces = taffy(members.namespaces);
    var mixins = taffy(members.mixins);
    var externals = taffy(members.externals);
    var interfaces = taffy(members.interfaces);

    Object.keys(helper.longnameToUrl).forEach(function (longname) {
        var myModules = helper.find(modules, { longname: longname });
        if (myModules.length) {
            generate(myModules[0].name, 'Module', myModules, helper.longnameToUrl[longname]);
        }

        var myClasses = helper.find(classes, { longname: longname });
        if (myClasses.length) {
            generate(myClasses[0].name, 'Class', myClasses, helper.longnameToUrl[longname]);
        }

        var myNamespaces = helper.find(namespaces, { longname: longname });
        if (myNamespaces.length) {
            generate(myNamespaces[0].name, 'Namespace', myNamespaces, helper.longnameToUrl[longname]);
        }

        var myMixins = helper.find(mixins, { longname: longname });
        if (myMixins.length) {
            generate(myMixins[0].name, 'Mixin', myMixins, helper.longnameToUrl[longname]);
        }

        var myExternals = helper.find(externals, { longname: longname });
        if (myExternals.length) {
            generate(myExternals[0].name, 'External', myExternals, helper.longnameToUrl[longname]);
        }

        var myInterfaces = helper.find(interfaces, { longname: longname });
        if (myInterfaces.length) {
            generate(myInterfaces[0].name, 'Interface', myInterfaces, helper.longnameToUrl[longname]);
        }
    });

    // TODO: move the tutorial functions to templateHelper.js
    function generateTutorial(title, tutorial, filename) {
        var tutorialData = {
            title: title,
            kind: null,
            header: tutorial.title,
            content: tutorial.parse(),
            children: tutorial.children
        };

        var tutorialPath = path.join(outdir, filename),
            html = view.render('tutorial.tmpl', tutorialData);

        // yes, you can use {@link} in tutorials too!
        html = helper.resolveLinks(html); // turn {@link foo} into <a href="foodoc.html">foo</a>

        fs.writeFileSync(tutorialPath, html, 'utf8');
    }

    // tutorials can have only one parent so there is no risk for loops
    function saveChildren(node) {
        node.children.forEach(function (child) {
            generateTutorial('Tutorial: ' + child.title, child, helper.tutorialToUrl(child.name));
            saveChildren(child);
        });
    }
    saveChildren(tutorials);
};

/**
 * Helper to generate navigation list link wrapper around navigation links for
 * locations.
 *
 * @param {String} linkClass navigation link classname
 * @param {String} linkContent navigation link HTML content
 * @return {String}
 */
function buildNavLink(linkClass, linkContent) {
    return [
        '<li class="nav-link nav-' + linkClass + '-link">',
        linkContent,
        '</li>'
    ].join('')
}

function buildNavType(type, typeLink) {
    return [
        '<span class="nav-item-type type-' + type + '" title="' + type + '">',
        type[0].toUpperCase(),
        '</span>',

        `<span class="nav-item-name is-${type}">`,
        typeLink,
        '</span>'
    ].join('')
}

/**
 * Helper to generate navigation list header wrapper around navigation header content
 * for headings and filenames.
 *
 * @param {String} content navigation header content
 * @return {String}
 */
function buildNavHeading(content) {
    return [
        '<li class="nav-heading">',
        content,
        '</li>'
    ].join('')
}

/**
 * Helper for generating generic navigation wrapper around content passed for
 * methods, and types.
 *
 * @param {String} itemContent navigation item content
 * @return {String}
 */
function buildNavItem(itemContent) {
    return [
        '<li class="nav-item">',
        itemContent,
        '</li>'
    ].join('')
}