/* eslint-disable */

// key加引号会报错 如：{ "a": 1, "b": 0}, 仅支持： { a: 1, b: 0}
function classNames() {
    var classes = [],
        hasOwn = {};

    for (var i = 0; i < arguments.length; i++) {
        var arg = arguments[i];
        if (!arg) continue;

        var argType = typeof arg;

        if (argType === 'string' || argType === 'number') {
            classes.push(arg);
        } else if ('Array' === arg.constructor && arg.length) {
            var inner = classNames.apply(null, arg);
            if (inner) {
                classes.push(inner);
            }
        } else if (argType === 'object') {
            var objStr = JSON.stringify(arg);
            var dotReg = getRegExp('"', 'g');
            objStr = objStr.replace('{', '').replace('}', '').split(',');

            for (var i = 0; i < objStr.length; i++) {
                var key = objStr[i].split(':')[0],
                    _key = key.replace(dotReg, '');

                if (!hasOwn[_key] && arg[_key]) {
                    classes.push(_key);
                    hasOwn[_key] = true;
                }
            }
        }
    }

    return classes.join(' ');
}

function isUrl(url) {
    var expression =
            'https?://(www.)?[-a-zA-Z0-9@:%._+~#=]{2,256}.[a-z]{2,6}\b([-a-zA-Z0-9@:%_+.~#?&//=]*)',
        regex = getRegExp(expression, 'g');

    return url.match(regex);
}

/**
 * 禁止事件冒泡
 */
function stopPropagation() {
    return false;
}

module.exports = {
    classNames: classNames,
    isUrl: isUrl,
    stopPropagation: stopPropagation,
};