private static Resource ValidateCodeOperation(string systemURL, NameValueCollection queryParam)
{
string codeVal = Utilities.GetQueryValue("code", queryParam);
string displayVal = Utilities.GetQueryValue("display", queryParam);
string languageVal = Utilities.GetQueryValue("displayLanguage", queryParam);
if (!string.IsNullOrEmpty(languageVal) && languageVal != "en-NZ")
{
throw new Exception(UNSUPPORTED_DISPLAY_LANGUAGE);
}
FhirBoolean validCode = new FhirBoolean(false);
FhirString validDisplay = new FhirString();
if (FhirSnomed.IsValidURI(systemURL))
{
validCode = new FhirBoolean(FhirSnomed.ValidateCode(codeVal, displayVal, out string prefTerm));
validDisplay = new FhirString(prefTerm);
}
else
{
CodeSystem codeSys = GetCodeSystem(TerminologyOperation.validate_code, systemURL, queryParam);
foreach (CodeSystem.ConceptDefinitionComponent cc in codeSys.Concept)
{
if (string.IsNullOrEmpty(displayVal))
{
validCode = new FhirBoolean(true);
validDisplay = new FhirString(cc.Display);
}
else if (displayVal.Trim().ToLower() == cc.Display.Trim().ToLower())
{
validCode = new FhirBoolean(true);
validDisplay = new FhirString(cc.Display);
}
else
{
validDisplay = new FhirString(cc.Display);
}
}
}
// build return parameters resource from search result
Parameters param = new Parameters();
param.Add("result", validCode);
if (validCode.Value == false)
{
param.Add("message", new FhirString("The code/display value " + codeVal + " / " + displayVal + " passed is incorrect"));
}
if (!string.IsNullOrEmpty(validDisplay.Value))
{
param.Add("display", validDisplay);
}
return(param);
}