app utils wrapFunction function fn after before condition replace if i

app.utils.wrapFunction = function(fn, after, before, condition, replace) {

    if (!_.isFunction(after) && _.isObject(after)) {
        before = after.before;
        condition = after.condition;
        replace = after.replace;
        after = after.after;
    }

    var oldfn = replace || fn;

    return function() {
        
        var context = this,
            result,
            beforeresult;

        if (_.isFunction(condition) && (condition.apply(context, arguments) === false)) {
            return false;
        }

        if (_.isFunction(before)) {
            beforeresult = before.apply(context, arguments);
        }

        if (beforeresult !== undefined && beforeresult.then) {

            var args = Array.prototype.slice.call(arguments);
            beforeresult.then(function(resolved) {
                args.push(resolved);
                result = oldfn.apply(context, args);
                if(_.isFunction(after)){
                    after.apply(context, args);
                    // console.info("after callback fired")
                }
            });

        } else {

            result = oldfn.apply(context, arguments);
            if(_.isFunction(after)){
                after.apply(context, arguments);
                // console.info("after callback fired")
            }

        }
        return result;
    }
}