balance

bdk-ffi/src/bdk.udl

@@ -140,6 +140,8 @@ interface Wallet {
   constructor(Descriptor descriptor, Descriptor? change_descriptor, Network network, WalletType wallet_type);
 
   AddressInfo get_address(AddressIndex address_index);
+
+  Balance get_balance();
 };
 
 enum WalletType {
@@ -165,4 +167,14 @@ interface AddressIndex {
   New();
   LastUnused();
   Peek(u32 index);
+};
+
+
+interface Balance {
+  u64 immature();
+  u64 trusted_pending();
+  u64 untrusted_pending();
+  u64 confirmed();
+  u64 trusted_spendable();
+  u64 total();
 };

bdk-ffi/src/lib.rs

@@ -5,6 +5,7 @@ pub fn hello_world() -> String {
 }
 
 use bdk::bitcoin::Network as BdkNetwork;
+use bdk::wallet::Balance as BdkBalance;
 
 pub enum Network {
     /// Mainnet Bitcoin.
@@ -209,7 +210,46 @@ use bdk::KeychainKind;
 //         }
 //     }
 // }
-//
+
+
+
+pub struct Balance {
+    pub inner: BdkBalance,
+}
+
+impl Balance {
+    /// All coinbase outputs not yet matured.
+    fn immature(&self) -> u64 {
+        self.inner.immature
+    }
+
+    /// Unconfirmed UTXOs generated by a wallet tx.
+    fn trusted_pending(&self) -> u64 {
+        self.inner.trusted_pending
+    }
+
+    /// Unconfirmed UTXOs received from an external wallet.
+    fn untrusted_pending(&self) -> u64 {
+        self.inner.untrusted_pending
+    }
+
+    /// Confirmed and immediately spendable balance.
+    fn confirmed(&self) -> u64 {
+        self.inner.confirmed
+    }
+
+    /// Get sum of trusted_pending and confirmed coins.
+    fn trusted_spendable(&self) -> u64 {
+        self.inner.trusted_spendable()
+    }
+
+    /// Get the whole balance visible to the wallet.
+    fn total(&self) -> u64 {
+        self.inner.total()
+    }
+}
+
+
 // pub struct Balance {
 //     // All coinbase outputs not yet matured
 //     pub immature: u64,

bdk-ffi/src/wallet.rs

@@ -858,6 +858,7 @@
 //     }
 // }
 use crate::descriptor::Descriptor;
+use crate::Balance;
 use crate::{AddressIndex, AddressInfo, Network};
 use bdk::Wallet as BdkWallet;
 use std::sync::{Arc, Mutex, MutexGuard};
@@ -903,8 +904,16 @@ impl Wallet {
         self.get_wallet().get_address(address_index.into()).into()
     }
 
-    // TODO 10: Do we need this mutex
+    // TODO: Do we need this mutex
     pub(crate) fn get_wallet(&self) -> MutexGuard<BdkWallet> {
         self.inner_mutex.lock().expect("wallet")
     }
+
+    // TODO: Why is the Arc required here?
+    pub fn get_balance(&self) -> Arc<Balance> {
+        // Arc::new(self.get_wallet().get_balance().into())
+        let bdk_balance = self.get_wallet().get_balance();
+        let balance = Balance { inner: bdk_balance };
+        Arc::new(balance)
+    }
 }