feat: apply_unconfirmed_txs on wallet

Author: reez

bdk-ffi/Cargo.lock

@@ -737,8 +737,14 @@ interface Wallet {
 
   [Throws=SqliteError]
   boolean persist(Connection connection);
+
+  /// Apply relevant unconfirmed transactions to the wallet.
+  /// Transactions that are not relevant are filtered out.
+  void apply_unconfirmed_txs(sequence<UnconfirmedTx> unconfirmed_txs);
 };
 
+typedef dictionary UnconfirmedTx;
+
 interface Update {};
 
 interface Policy {

bdk-ffi/src/bdk.udl

@@ -87,6 +87,7 @@ use crate::types::SyncRequestBuilder;
 use crate::types::SyncScriptInspector;
 use crate::types::Tx;
 use crate::types::TxStatus;
+use crate::types::UnconfirmedTx;
 use crate::types::Update;
 use crate::wallet::Wallet;
 

bdk-ffi/src/lib.rs

@@ -592,3 +592,9 @@ impl From<BdkTx> for Tx {
         }
     }
 }
+
+#[derive(uniffi::Record)]
+pub struct UnconfirmedTx {
+    pub tx: Arc<Transaction>,
+    pub last_seen: u64,
+}

bdk-ffi/src/types.rs

@@ -7,7 +7,7 @@ use crate::error::{
 use crate::store::Connection;
 use crate::types::{
     AddressInfo, Balance, CanonicalTx, FullScanRequestBuilder, KeychainAndIndex, LocalOutput,
-    Policy, SentAndReceivedValues, SignOptions, SyncRequestBuilder, Update,
+    Policy, SentAndReceivedValues, SignOptions, SyncRequestBuilder, UnconfirmedTx, Update,
 };
 
 use bdk_wallet::bitcoin::{Network, Txid};
@@ -130,6 +130,14 @@ impl Wallet {
             .map_err(CannotConnectError::from)
     }
 
+    pub fn apply_unconfirmed_txs(&self, unconfirmed_txs: Vec<UnconfirmedTx>) {
+        self.get_wallet().apply_unconfirmed_txs(
+            unconfirmed_txs
+                .into_iter()
+                .map(|utx| (Arc::new(utx.tx.as_ref().into()), utx.last_seen)),
+        )
+    }
+
     pub(crate) fn derivation_index(&self, keychain: KeychainKind) -> Option<u32> {
         self.get_wallet().derivation_index(keychain)
     }