Previously `SpkTxOutIndex` methods can be called from
`KeychainTxOutIndex` due to the `DeRef` implementation. However, the
internal `SpkTxOut` will also contain lookahead spks resulting in an
error-prone API.
`SpkTxOutIndex` methods are now not directly callable from
`KeychainTxOutIndex`. Methods of `KeychainTxOutIndex` are renamed for
clarity. I.e. methods that return an unbounded spk iter are prefixed
with `unbounded`.
These methods try to load wallet from persistence and initializes the
wallet instead if non-existant.
An internal helper method `create_signers` is added to reuse code.
Documentation is also improved.
`Wallet::new` now creates a new wallet. `Wallet::load` loads an existing
wallet. The network type is now recoverable from persistence. Error
types have been simplified.
...graph update
Fixes#1151.
When wallet_esplora_* was used to sync a wallet containing a transaction
confirmed some time ago (more than 10-15 blocks ago), the transaction would
be stuck in an "unconfirmed" state forever.
At the first scan time, `update_local_chain` would just fetch the last 10 to
15 blocks (depending on the server used), and `tx_graph.missing_heights`
wouldn't return the tx's confirmation block as it was called on the
original, non-updated tx_graph.
So, after the first scan, we would have a transaction in memory with an
anchor that doesn't exist in our local_chain, and try_get_chain_position
would return unconfirmed.
When scanning again, missing_heights would find the missing anchor, but
`update_local_chain` wouldn't include it as it's older than
ASSUME_FINAL_DEPTH.
The missing block would be downloaded every time, but never included in
the local_chain, and the transaction would remain unconfirmed forever.
Here we call missing_heights on the updated graph, so that it can
correctly return the anchor height, and `update_local_chain` can
fetch it and include it in the chain.
Added
- Wallet::sent_and_received function
- Wallet::calculate_fee and Wallet::calculate_fee_rate functions
- Wallet::error::CalculateFeeError
BREAKING CHANGES:
Removed
- TransactionDetails struct
Changed
- Wallet::get_tx now returns CanonicalTx instead of TransactionDetails
- TxBuilder::finish now returns only a PartiallySignedTransaction
