define(function () {
    var cssAPI = {};

    cssAPI.normalize = function (name, normalize) {
        if (name.substr(name.length - 5, 5) == '.html')
            name = name.substr(0, name.length - 5);

        return normalize(name);
    }

    var importedFiles = [];

    cssAPI.load = function (cssId, req, load, config) {

        // Somehow if the url starts with /css, require will get all screwed up since this extension is also called css
        cssId = cssId.replace('js/requirehtml', 'html');

        var url = cssId + '.html';

        if (url.indexOf('http') != 0 && url.indexOf('file:') != 0) {
            url = config.baseUrl + url;
        }

        if (importedFiles.indexOf(url) == -1) {
            importedFiles.push(url);

            var link = document.createElement('link');
            link.rel = 'import';

            if (url.toLowerCase().indexOf('bower_') == -1) {
                url = url + "?" + config.urlArgs;
            }

            link.onload = load;
            link.href = url;

            document.head.appendChild(link);

            return;
        }

        load();
    }

    return cssAPI;
});