var _manager function var deferred defer _doer then function data cons

var _manager = function (i) {
      var deferred = $q.defer();

      _doer(i)
        .then(function (data) {
          i++;
          console.log('isStop = ' + isStop, 'i = ' + i);
          if (data.state === 'ok' && !isStop && i < 7) {
            //deferred.resolve({state: 'ok', i: i});
            return _manager(i);
          } else {
            //deferred.resolve({state: 'end', i: data.i});
            /* в следующий then передаем data через return */
            return {state: 'end', i: data.i};
          }
        }, function (data) {
          //deferred.reject({state: 'error', i: data.i});
          return {state: 'error', i: data.i};
        })
        .then(function (data) {
          if(data.state === 'ok') {
            deferred.resolve({state: 'ok', i: data.i});
          } else if (data.state === 'end') {
            deferred.resolve({state: 'end', i: data.i});
          } else {
            deferred.resolve({state: 'error', i: data.i});
          }
        })
      ;

      return deferred.promise;
    };