public PatientResponse GetPatients(PatientRequest request)
{
var patientList = new PatientRepository().GetPatients();
var result = patientList.AsQueryable();
if (!string.IsNullOrEmpty(request.Name))
result = result.Where(p => p.FirstName.ToLowerInvariant().Contains(request.Name.ToLowerInvariant()) | p.LastName.ToLowerInvariant().Contains(request.Name.ToLowerInvariant()));
if (request.BirthYear.HasValue)
result = result.Where(p => p.BirthDate.Year == request.BirthYear);
if (request.Gender.HasValue)
result = result.Where(p => p.Gender == request.Gender);
if (!string.IsNullOrEmpty(request.PatientNumber))
result = result.Where(p => p.PatientNumber.ToLowerInvariant() == request.PatientNumber.ToLowerInvariant());
return new PatientResponse
{
Patients = result.ToList()
};
}