public async SystemTasks.Task <IEnumerable <PointerViewModel> > GetPointers(RequestViewModel request)
{
var pointerViewModels = new List <PointerViewModel>();
var pointerRequest = NrlsPointerRequest.Search(request.OrgCode, request.Id, null, request.Asid, null);
var pointerResponse = await _docRefService.GetPointersBundle(pointerRequest);
if (pointerResponse.ResourceType.Equals(ResourceType.OperationOutcome))
{
throw new HttpFhirException("Invalid Fhir Request", (OperationOutcome)pointerResponse, null);
}
var pointerBundle = pointerResponse as Bundle;
//need a more slick solution for getting related references
//we are connecting to NRLS so will only get Pointers back - a complete Fhir server would allow for includes
var patients = await _patientService.GetPatients(); //In live this could be lots
var organisations = await _organisationServices.GetOrganisations(); //In live this could be lots
var pointers = ListEntries <DocumentReference>(pointerBundle.Entry, ResourceType.DocumentReference);
//var patients = ListEntries<Patient>(entries, ResourceType.Patient); // If we could do includes take from bundle
//var organisations = ListEntries<Organization>(entries, ResourceType.Organization); // If we could do includes take from bundle
foreach (var pointer in pointers)
{
var pointerViewModel = pointer.ToViewModel(DefaultUrlBase, PointerUrlBase);
var patientNhsNumber = pointerViewModel.Subject?.Reference?.Replace(FhirConstants.SystemPDS, "");
var authorOrgCode = pointerViewModel.Author?.Reference?.Replace(FhirConstants.SystemODS, "");
var custodianOrgCode = pointerViewModel.Custodian?.Reference?.Replace(FhirConstants.SystemODS, "");
//This assumes the resource is relative
//In reality it does not make sense to attach a patient because a GET to NRLS should be in the patient context anyway!
var subject = patients.FirstOrDefault(s => s.Identifier.FirstOrDefault(t => !string.IsNullOrEmpty(patientNhsNumber) && !string.IsNullOrEmpty(t.System) && t.System.Equals(FhirConstants.SystemNhsNumber) && !string.IsNullOrEmpty(t.Value) && t.Value.Equals(patientNhsNumber)) != null);
pointerViewModel.SubjectViewModel = subject?.ToViewModel(null);
//This assumes the resource is relative
var custodian = organisations.FirstOrDefault(s => s.Identifier.FirstOrDefault(t => !string.IsNullOrEmpty(custodianOrgCode) && !string.IsNullOrEmpty(t.System) && t.System.Equals(FhirConstants.SystemOrgCode) && !string.IsNullOrEmpty(t.Value) && t.Value.Equals(custodianOrgCode)) != null);
pointerViewModel.CustodianViewModel = custodian?.ToViewModel(FhirConstants.SystemOrgCode);
var author = organisations.FirstOrDefault(s => s.Identifier.FirstOrDefault(t => !string.IsNullOrEmpty(authorOrgCode) && !string.IsNullOrEmpty(t.System) && t.System.Equals(FhirConstants.SystemOrgCode) && !string.IsNullOrEmpty(t.Value) && t.Value.Equals(authorOrgCode)) != null);
pointerViewModel.AuthorViewModel = author?.ToViewModel(FhirConstants.SystemOrgCode);
pointerViewModels.Add(pointerViewModel);
}
if (pointers.Any())
{
CachePointers(request.Id, pointerViewModels);
}
return(pointerViewModels);
}
public async Task<CommandResult<string>> RunCommand()
{
var jsonSerializer = new FhirJsonSerializer();
var jsonResponse = string.Empty;
NrlsPointerRequest pointerRequest;
var idParam = _parameters?.FirstOrDefault(n => n.Key.Equals("_id"));
var asid = _headers.FirstOrDefault(n => n.Key.Equals("fromasid"));
var orgCode = _headers.FirstOrDefault(n => n.Key.Equals("orgcode"));
//Massive Try/catch
try
{
if (_method == "get")
{
var patientParam = _parameters.FirstOrDefault(n => n.Key.Equals("subject"));
var custodianParam = _parameters.FirstOrDefault(n => n.Key.Equals("custodian"));
var typeParam = _parameters.FirstOrDefault(n => n.Key.Equals("type"));
if (!string.IsNullOrEmpty(idParam.Value.Value))
{
pointerRequest = NrlsPointerRequest.Read(idParam.Value.Value, asid.Value, orgCode.Value);
}
else
{
pointerRequest = NrlsPointerRequest.Search(orgCode.Value, patientParam.Value, typeParam.Value, asid.Value, custodianParam.Value);
}
var pointers = await _docRefService.GetPointersBundle(pointerRequest);
jsonResponse = jsonSerializer.SerializeToString(pointers);
}
if (_method == "post")
{
OperationOutcome documentOutcome;
if (_pointerBody != null)
{
pointerRequest = NrlsPointerRequest.Create(orgCode.Value, _pointerBody.OrgCode, _pointerBody.NhsNumber, _pointerBody.Url, _pointerBody.ContentType, _pointerBody.TypeCode, _pointerBody.TypeDisplay, asid.Value);
var response = await _docRefService.GenerateAndCreatePointer(pointerRequest);
documentOutcome = response.Resource as OperationOutcome;
}
else
{
pointerRequest = NrlsPointerRequest.Create(orgCode.Value, null, null, null, null, null, null, asid.Value);
var response = await _docRefService.CreatePointer(pointerRequest, _pointer);
documentOutcome = response.Resource as OperationOutcome;
}
jsonResponse = jsonSerializer.SerializeToString(documentOutcome);
}
if (_method == "put")
{
//not implemented
}
if (_method == "delete")
{
pointerRequest = NrlsPointerRequest.Delete(idParam.Value.Value, asid.Value, orgCode.Value);
var outcome = await _docRefService.DeletePointer(pointerRequest);
jsonResponse = jsonSerializer.SerializeToString(outcome);
}
}
catch(Exception ex)
{
jsonResponse = ex.Message;
}
return CommandResult<string>.Set(true, "Success", jsonResponse.ToString());
}