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/**
 * An async module
 * @module asyncModule
 */
var q = require('q');
var debug = require('debug')('asyncModule');
debug.log = console.log.bind(console);

var service = (function () {
	//private
	var lazyDependency;
	var initPromise;

	//constructor
	var service = function () {
		var self = this;
		initPromise = q.promise(function (resolve, reject, notify) {
			//initialize async module
			setTimeout(function () {
				lazyDependency = {};
				lazyDependency._method = function (message, callback) {
					callback(message + " altered");
				};

				//resolve defer
				resolve(lazyDependency);
			}, 5000);
		});
    };

    service.prototype.myMethod = function (message, callback) {
		var self = this;
		//queue function
		initPromise.then(function (obj) {
			debug(self.name);
			obj._method(message, function (msg) {
				callback(null, msg);
			});
		});
    };

    service.prototype.configure = function (options) {
		this.name = options.name;
    };

    return service;
})();

new service().myMethod('test', function (err, message) {
	console.log('response', message);
});

module.exports = new service();