feat: watch-only external on-chain accounts

Cargo.toml

@@ -83,6 +83,7 @@ winapi = { version = "0.3", features = ["winbase"] }
 
 [dev-dependencies]
 lightning = { git = "https://github.com/ZeusLN/rust-lightning", branch = "lsps7-for-ldk-node-close-fix", features = ["std", "_test_utils"] }
+bdk_wallet = { version = "2.2.0", default-features = false, features = ["std", "keys-bip39", "test-utils"] }
 proptest = "1.0.0"
 regex = "1.5.6"
 criterion = { version = "0.7.0", features = ["async_tokio"] }

bindings/ldk_node.udl

@@ -158,6 +158,23 @@ interface Node {
 	LSPS1Liquidity lsps1_liquidity();
 	LSPS7Liquidity lsps7_liquidity();
 	[Throws=NodeError]
+	void import_watchonly_account(AccountId account_id, string external_descriptor, string internal_descriptor);
+	[Throws=NodeError]
+	Address watchonly_new_address([ByRef]AccountId account_id);
+	[Throws=NodeError]
+	u64 watchonly_balance([ByRef]AccountId account_id);
+	[Throws=NodeError]
+	sequence<WalletUtxo> watchonly_list_utxos([ByRef]AccountId account_id);
+	[Throws=NodeError]
+	sequence<Address> watchonly_list_addresses([ByRef]AccountId account_id);
+	[Throws=NodeError]
+	void sync_watchonly_accounts();
+	sequence<AccountId> list_watchonly_accounts();
+	[Throws=NodeError]
+	WatchonlyAccountPreview preview_watchonly_account(string external_descriptor, string internal_descriptor, u8 count);
+	[Throws=NodeError]
+	string watchonly_create_psbt([ByRef]AccountId account_id, sequence<PsbtRecipient> recipients, sequence<OutPoint> utxos, FeeRate fee_rate);
+	[Throws=NodeError]
 	void connect(PublicKey node_id, SocketAddress address, boolean persist);
 	[Throws=NodeError]
 	void disconnect(PublicKey node_id);
@@ -301,6 +318,16 @@ dictionary WalletUtxo {
 	boolean is_spent;
 };
 
+dictionary WatchonlyAccountPreview {
+	sequence<Address> external_addresses;
+	sequence<Address> internal_addresses;
+};
+
+dictionary PsbtRecipient {
+	Address address;
+	u64 amount_sats;
+};
+
 interface OnchainPayment {
 	[Throws=NodeError]
 	Address new_address();
@@ -988,6 +1015,9 @@ typedef string ChannelId;
 [Custom]
 typedef string UserChannelId;
 
+[Custom]
+typedef string AccountId;
+
 [Custom]
 typedef string Mnemonic;