var $ = require('yoho-jquery');

$.extend({
    defer: function(func) {
        return function() {
            var defer = $.Deferred(); // eslint-disable-line
            var args = Array.prototype.slice.call(arguments);

            args.push(defer.resolve, defer.reject);
            func && func.apply(undefined, args); // eslint-disable-line
            return defer.promise();
        };
    },
    reject: function() {
        var defer = $.Deferred(); // eslint-disable-line
        var args = Array.prototype.slice.call(arguments);

        return defer.reject.apply(defer, args).promise();
    },
    resolve: function() {
        var defer = $.Deferred(); // eslint-disable-line
        var args = Array.prototype.slice.call(arguments);

        return defer.resolve.apply(defer, args).promise();
    },
    sleep: function(ms) {
        var defer = $.Deferred(); // eslint-disable-line

        window.setTimeout(function() {
            defer.resolve();
        }, ms);

        return defer.promise();
    }
});