Feature: Add Bolt12 Uniffi Type Wrappers

bindings/ldk_node.udl

@@ -736,6 +736,71 @@ interface Bolt11Invoice {
 	PublicKey recover_payee_pub_key();
 };
 
+[Enum]
+interface OfferAmount {
+	Bitcoin(u64 amount_msats);
+	Currency(string iso4217_code, u64 amount);
+};
+
+[Traits=(Debug, Display, Eq)]
+interface Offer {
+	[Throws=NodeError, Name=from_str]
+	constructor([ByRef] string offer_str);
+	OfferId id();
+	boolean is_expired();
+	string? description();
+	string? issuer();
+	OfferAmount? amount();
+	boolean is_valid_quantity(u64 quantity);
+	boolean expects_quantity();
+	boolean supports_chain(Network chain);
+	sequence<Network> chains();
+	sequence<u8>? metadata();
+	u64? absolute_expiry_seconds();
+	PublicKey? issuer_signing_pubkey();
+};
+
+[Traits=(Debug, Display, Eq)]
+interface Refund {
+	[Throws=NodeError, Name=from_str]
+	constructor([ByRef] string refund_str);
+	string description();
+	u64? absolute_expiry_seconds();
+	boolean is_expired();
+	string? issuer();
+	sequence<u8> payer_metadata();
+	Network? chain();
+	u64 amount_msats();
+	u64? quantity();
+	PublicKey payer_signing_pubkey();
+	string? payer_note();
+};
+
+interface Bolt12Invoice {
+	[Throws=NodeError, Name=from_str]
+	constructor([ByRef] string invoice_str);
+	PaymentHash payment_hash();
+	u64 amount_msats();
+	OfferAmount? amount();
+	PublicKey signing_pubkey();
+	u64 created_at();
+	u64? absolute_expiry_seconds();
+	u64 relative_expiry();
+	boolean is_expired();
+	string? description();
+	string? issuer();
+	string? payer_note();
+	sequence<u8>? metadata();
+	u64? quantity();
+	sequence<u8> signable_hash();
+	PublicKey payer_signing_pubkey();
+	PublicKey? issuer_signing_pubkey();
+	sequence<u8> chain();
+	sequence<sequence<u8>>? offer_chains();
+	sequence<Address> fallback_addresses();
+	sequence<u8> encode();
+};
+
 [Custom]
 typedef string Txid;
 
@@ -754,15 +819,6 @@ typedef string NodeId;
 [Custom]
 typedef string Address;
 
-[Custom]
-typedef string Offer;
-
-[Custom]
-typedef string Refund;
-
-[Custom]
-typedef string Bolt12Invoice;
-
 [Custom]
 typedef string OfferId;
 

src/ffi/mod.rs

@@ -0,0 +1,47 @@
+// This file is Copyright its original authors, visible in version control history.
+//
+// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. You may not use this file except in
+
+#[cfg(feature = "uniffi")]
+mod types;
+
+#[cfg(feature = "uniffi")]
+pub use types::*;
+
+#[cfg(feature = "uniffi")]
+pub fn maybe_deref<T, R>(wrapped_type: &std::sync::Arc<T>) -> &R
+where
+	T: AsRef<R>,
+{
+	wrapped_type.as_ref().as_ref()
+}
+
+#[cfg(feature = "uniffi")]
+pub fn maybe_try_convert_enum<T, R>(wrapped_type: &T) -> Result<R, crate::error::Error>
+where
+	for<'a> R: TryFrom<&'a T, Error = crate::error::Error>,
+{
+	R::try_from(wrapped_type)
+}
+
+#[cfg(feature = "uniffi")]
+pub fn maybe_wrap<T>(ldk_type: impl Into<T>) -> std::sync::Arc<T> {
+	std::sync::Arc::new(ldk_type.into())
+}
+
+#[cfg(not(feature = "uniffi"))]
+pub fn maybe_deref<T>(value: &T) -> &T {
+	value
+}
+
+#[cfg(not(feature = "uniffi"))]
+pub fn maybe_try_convert_enum<T>(value: &T) -> Result<&T, crate::error::Error> {
+	Ok(value)
+}
+
+#[cfg(not(feature = "uniffi"))]
+pub fn maybe_wrap<T>(value: T) -> T {
+	value
+}