angular.module('UserService', ["AjaxService", "ObserverService", "MapService"]).service('User', function (Ajax, $q, Observer, Map) {
    var obUser = Observer.create();
    var user_defer = null;
    var local_address = null;

    this.getAddress = function () {
        if (!local_address) {
            var address = null;
            if (localStorage.getItem("local_address")) {
                address = angular.fromJson(localStorage.getItem("local_address"));
            }
            if (address && address.version !== 2) {
                address = null;
            }

            if (!address) {
                this.setAddress(null);
            }

            local_address = address;
        }
        return local_address;
    };

    this.setAddress = function (address) {
        local_address = address;
        if (address) {
            localStorage.setItem("local_address", angular.toJson(address));
        } else {
            localStorage.removeItem("local_address");
        }
    };

    this.reload = function() {
        user_defer = null;
        obUser.notify();
    };

    this.getOb = function () {
        return obUser;
    };

    this.get = function() {
        if (!user_defer) {
            user_defer = $q.defer();
            var defer = user_defer;
            Ajax.get("User", "get", function (response) {
                if (response && response.user) {
                    defer.resolve(response.user);
                } else {
                    defer.resolve(null);
                }
            });
        }
        return user_defer.promise;
    };

    this.logout = function() {
        Ajax.get("User", "logout", function () {
            user_defer = null;
            obUser.notify();
        });
    };
});