build method

@override Future<Filter<HealthcareElement>> build()

Implementation

@override
Future<Filter<HealthcareElement>> build() async {
  if (_dataOwnerId == null) {
    throw FormatException("Data Owner must be set for patient filter.");
  }

  List<Filter<HealthcareElement>> filters = [
    _byIds?.let((v) => HealthcareElementByIdsFilter(ids: v)),
    _byIdentifiers?.let((v) => HealthcareElementByHcPartyIdentifiersFilter(hcPartyId: _dataOwnerId!, identifiers: v.toList())),
    _byTagCodeFilter?.let((v) {
      v.healthcarePartyId = _dataOwnerId!;
      return v;
    }),
    await _forPatients?.let((v) async => HealthcareElementByHcPartyPatientFilter(
        healthcarePartyId: _dataOwnerId!,
        patientSecretForeignKeys: (await Future.wait(v.item2.map((p) => v.item1.decryptEncryptionKeys(
              _dataOwnerId!, (p.systemMetaData?.delegations ?? {}).map((k, v) => MapEntry(k, v.map((d) => d.toDelegationDto()).toSet()))))))
            .toSet()
            .flatten())),
    await _union?.let(
        (v) async => UnionFilter<HealthcareElement>(filters: await Future.wait(v.map((f) async => await f.forDataOwner(f.dataOwnerId ?? _dataOwnerId!).build()).toList()))),
    await _intersection?.let((v) async =>
        IntersectionFilter<HealthcareElement>(filters: await Future.wait(v.map((f) async => await f.forDataOwner(f.dataOwnerId ?? _dataOwnerId!).build()).toList())))
  ].whereType<Filter<HealthcareElement>>().toList();

  if (filters.isEmpty) {
    return HealthcareElementByHcPartyFilter(hcpId: _dataOwnerId!);
  } else if (filters.length == 1) {
    return filters[0];
  } else {
    return IntersectionFilter(filters: filters);
  }
}