Open
Description
First of all, it would be convenient to have a way to distinguish between test, recovery and vaccine data through an enum. This might look like the following code:
#[derive(Debug)]
pub enum CertData<'a> {
RecoveryData(&'a Recovery),
TestData(&'a Test),
VaccinationData(&'a Vaccination),
}Once we have this, DgcContainer could implement a method like get_first_cert() which might work as follows (untested):
impl DgcContainer {
pub fn get_first_cert(&self) -> Option<CertData<'_>> {
for (_, certs) in self.certs.iter() {
if let Some(v) = certs.v.first() {
return Some(CertData::VaccinationData(v));
}
if let Some(t) = certs.t.first() {
return Some(CertData::TestData(t));
}
if let Some(r) = certs.r.first() {
return Some(CertData::RecoveryData(r));
}
}
None
}
}A structurally valid Dgc should contain only one entry, so we can use this method to extract that easily.