// Get return nil on not found.
func (au *addressUx) Get(address cipher.Address) ([]cipher.SHA256, error) {
uxHashes := []cipher.SHA256{}
bin := au.bkt.Get(address.Bytes())
if bin == nil {
return nil, nil
}
if err := encoder.DeserializeRaw(bin, &uxHashes); err != nil {
return nil, err
}
return uxHashes, nil
}
func (au *addressUx) Add(address cipher.Address, uxHash cipher.SHA256) error {
hashes, err := au.Get(address)
if err != nil {
return err
}
if hashes == nil {
bin := encoder.Serialize([]cipher.SHA256{uxHash})
return au.bkt.Put(address.Bytes(), bin)
}
// check dup
for _, u := range hashes {
if u == uxHash {
return nil
}
}
hashes = append(hashes, uxHash)
bin := encoder.Serialize(hashes)
return au.bkt.Put(address.Bytes(), bin)
}