feat: add new types module

bdk-ffi/src/bdk.udl

@@ -1,14 +1,53 @@
 namespace bdk {};
 
 // ------------------------------------------------------------------------
-// bdk crate - root module
+// bdk crate - types module
 // ------------------------------------------------------------------------
 
 enum KeychainKind {
   "External",
   "Internal",
 };
 
+dictionary AddressInfo {
+  u32 index;
+  Address address;
+  KeychainKind keychain;
+};
+
+[Enum]
+interface AddressIndex {
+  New();
+  LastUnused();
+  Peek(u32 index);
+};
+
+interface Balance {
+  u64 immature();
+
+  u64 trusted_pending();
+
+  u64 untrusted_pending();
+
+  u64 confirmed();
+
+  u64 trusted_spendable();
+
+  u64 total();
+};
+
+dictionary LocalUtxo {
+  OutPoint outpoint;
+  TxOut txout;
+  KeychainKind keychain;
+  boolean is_spent;
+};
+
+dictionary TxOut {
+  u64 value;
+  Script script_pubkey;
+};
+
 // ------------------------------------------------------------------------
 // bdk crate - wallet module
 // ------------------------------------------------------------------------
@@ -49,33 +88,6 @@ enum ChangeSpendPolicy {
   "ChangeForbidden"
 };
 
-interface Balance {
-  u64 immature();
-
-  u64 trusted_pending();
-
-  u64 untrusted_pending();
-
-  u64 confirmed();
-
-  u64 trusted_spendable();
-
-  u64 total();
-};
-
-dictionary AddressInfo {
-  u32 index;
-  Address address;
-  KeychainKind keychain;
-};
-
-[Enum]
-interface AddressIndex {
-  New();
-  LastUnused();
-  Peek(u32 index);
-};
-
 interface Wallet {
   [Name=new_no_persist, Throws=BdkError]
   constructor(Descriptor descriptor, Descriptor? change_descriptor, Network network);

bdk-ffi/src/bitcoin.rs

@@ -7,6 +7,7 @@ use bdk::bitcoin::Address as BdkAddress;
 use bdk::bitcoin::OutPoint as BdkOutPoint;
 use bdk::bitcoin::Transaction as BdkTransaction;
 use bdk::bitcoin::Txid;
+use bdk::bitcoin::blockdata::transaction::TxOut as BdkTxOut;
 use bdk::Error as BdkError;
 
 use std::io::Cursor;
@@ -309,3 +310,21 @@ impl From<&OutPoint> for BdkOutPoint {
         }
     }
 }
+
+/// A transaction output, which defines new coins to be created from old ones.
+#[derive(Debug, Clone)]
+pub struct TxOut {
+    /// The value of the output, in satoshis.
+    pub value: u64,
+    /// The address of the output.
+    pub script_pubkey: Arc<Script>,
+}
+
+impl From<&BdkTxOut> for TxOut {
+    fn from(tx_out: &BdkTxOut) -> Self {
+        TxOut {
+            value: tx_out.value,
+            script_pubkey: Arc::new(Script(tx_out.script_pubkey.clone()))
+        }
+    }
+}