wikimedia/mediawiki-extensions-Wikibase

/**
 * @license GPL-2.0-or-later
 * @author Daniel Werner < daniel.a.r.werner@gmail.com >
 */
( function ( wb ) {
    'use strict';

    var wbSites = new ( function WbSites() {

        /**
         * Will hold a list of all the sites after getSites() was called. This will cache the result.
         *
         * TODO: This should go together with the old UI.
         *
         * @member Object
         */
        this._siteList = null;

        /**
         * Returns an array with all the known sites.
         *
         * @return {Object} Global site IDs as field names, related wb.Site objects as value.
         */
        this.getSites = function () {
            if ( this._siteList !== null ) {
                // get cached list since this can be an expensive job to do
                return this._siteList;
            }

            // get all the details about all the sites:
            var sitesDetails = mw.config.get( 'wbSiteDetails' ),
                siteDefinition,
                site;

            this._siteList = {};

            for ( var globalSiteId in sitesDetails ) {
                siteDefinition = sitesDetails[ globalSiteId ];
                site = new wb.Site( siteDefinition );

                this._siteList[ globalSiteId ] = site;
            }

            return this._siteList;
        };

        /**
         * Returns an array with all the known sites of one group.
         *
         * @return {Object} Global site IDs as field names, related wb.Site objects as value.
         */
        this.getSitesOfGroup = function ( groupId ) {
            var sitesOfGroup = {},
                sites = this.getSites();

            for ( var siteId in sites ) {
                var site = sites[ siteId ];

                if ( site.getGroup() === groupId ) {
                    sitesOfGroup[ siteId ] = site;
                }
            }
            return sitesOfGroup;
        };

        /**
         * Returns a wikibase.Site object with details about a site by the sites ID. If there is no site
         * related to the given ID, null will be returned.
         *
         * @param {string} siteId
         * @return {wikibase.Site|null}
         */
        this.getSite = function ( siteId ) {
            var sites = this.getSites(),
                site = sites[ siteId ];

            if ( site === undefined ) {
                return null;
            }
            return site;
        };

    } )();

    module.exports = wbSites;

}( wikibase ) );