lookupVisitor method

  1. @override
Future<bool> lookupVisitor(
  1. String visitoId
)
override

Implementation

@override
// Called right at visitor creation, return a jsonString corresponding to visitor. Return a jsonString
Future<bool> lookupVisitor(String visitoId) async {
  var resultFromCacheBis = await visitor.config.visitorCacheImp
      ?.lookupVisitor(visitor.visitorId)
      .timeout(
          Duration(
              milliseconds:
                  visitor.config.visitorCacheImp?.visitorCacheLookupTimeout ??
                      200), onTimeout: () {
    Flagship.logger(
        Level.ERROR, "Timeout on trying to read the cache visitor");
    return "";
  });
  if (resultFromCacheBis != null && resultFromCacheBis.length != 0) {
    // convert to Map
    Map<String, dynamic> result = jsonDecode(resultFromCacheBis);
    // Retreive the json string stored in the visitor filed of this map.
    if (result['visitor'] != null) {
      VisitorCache cachedVisitor =
          VisitorCache.fromJson(jsonDecode(result['visitor']));
      Flagship.logger(Level.DEBUG,
          'The cached visitor get through the lookup is ${cachedVisitor.toString()}');
      // update the current visitor with his own cached data
      // 1 - update modification Map<String, Modification> modifications
      visitor.modifications
          .addEntries(cachedVisitor.getModifications().entries);
      // 2- Update the assignation history
      visitor.decisionManager.updateAssignationHistory(
          cachedVisitor.getAssignationHistory() ?? {});
      return true;
    } else {
      return false;
    }
  } else {
    return false;
  }
}