feat: expose PaymentKind accessors in UDL bindings

Author: jgmcalpine

bindings/ldk_node.udl

@@ -1,6 +1,11 @@
 namespace ldk_node {
 	Mnemonic generate_entropy_mnemonic(WordCount? word_count);
 	Config default_config();
+
+	// PaymentKind Accessors
+	PaymentHash? payment_kind_get_payment_hash(PaymentKind kind);
+	PaymentPreimage? payment_kind_get_preimage(PaymentKind kind);
+	PaymentSecret? payment_kind_get_secret(PaymentKind kind);
 };
 
 dictionary Config {

src/ffi/types.rs

@@ -53,6 +53,7 @@ pub use crate::graph::{ChannelInfo, ChannelUpdateInfo, NodeAnnouncementInfo, Nod
 pub use crate::liquidity::{LSPS1OrderStatus, LSPS2ServiceConfig};
 pub use crate::logger::{LogLevel, LogRecord, LogWriter};
 pub use crate::payment::store::{
+	payment_kind_get_payment_hash, payment_kind_get_preimage, payment_kind_get_secret,
 	ConfirmationStatus, LSPFeeLimits, PaymentDirection, PaymentKind, PaymentStatus,
 };
 pub use crate::payment::QrPaymentResult;

src/payment/store.rs

@@ -529,6 +529,24 @@ impl PaymentKind {
 	}
 }
 
+#[cfg(feature = "uniffi")]
+#[doc(hidden)]
+pub fn payment_kind_get_payment_hash(kind: PaymentKind) -> Option<PaymentHash> {
+	kind.payment_hash()
+}
+
+#[cfg(feature = "uniffi")]
+#[doc(hidden)]
+pub fn payment_kind_get_preimage(kind: PaymentKind) -> Option<PaymentPreimage> {
+	kind.preimage()
+}
+
+#[cfg(feature = "uniffi")]
+#[doc(hidden)]
+pub fn payment_kind_get_secret(kind: PaymentKind) -> Option<PaymentSecret> {
+	kind.secret()
+}
+
 /// Represents the confirmation status of a transaction.
 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub enum ConfirmationStatus {