@startuml
hide empty description

[*] --> WaitingCounterparty : <font color=red>**Wallet::send**</font>
note on link
    donation=false
end note
[*] --> WaitingConfirmation : <font color=red>**Wallet::send**</font>
note on link
    donation=true
end note

WaitingCounterparty --> expired¹ : expired before getting ACK
WaitingCounterparty --> Failed : got NACK
WaitingCounterparty --> WaitingConfirmation : got ACK

WaitingConfirmation --> Settled : <font color=red>**Wallet::refresh**</font>\nenough confirmations

expired¹ --> Failed : <font color=red>**Wallet::fail_transfer**</font>
Failed --> removed¹ : <font color=red>**Wallet::delete_transfers**</font>

note "¹ not an actual TransferStatus" as N1
@enduml