Add Uniffi bindings for LSPS1 API

Author: tnull

bindings/ldk_node.udl

@@ -39,6 +39,7 @@ interface Builder {
 	void set_chain_source_bitcoind_rpc(string rpc_host, u16 rpc_port, string rpc_user, string rpc_password);
 	void set_gossip_source_p2p();
 	void set_gossip_source_rgs(string rgs_server_url);
+	void set_liquidity_source_lsps1(PublicKey node_id, SocketAddress address, string? token);
 	void set_liquidity_source_lsps2(PublicKey node_id, SocketAddress address, string? token);
 	void set_storage_dir_path(string storage_dir_path);
 	void set_network(Network network);
@@ -78,6 +79,7 @@ interface Node {
 	SpontaneousPayment spontaneous_payment();
 	OnchainPayment onchain_payment();
 	UnifiedQrPayment unified_qr_payment();
+	Lsps1Liquidity lsps1_liquidity();
 	[Throws=NodeError]
 	void connect(PublicKey node_id, SocketAddress address, boolean persist);
 	[Throws=NodeError]
@@ -171,6 +173,13 @@ interface UnifiedQrPayment {
 	QrPaymentResult send([ByRef]string uri_str);
 };
 
+interface Lsps1Liquidity {
+	[Throws=NodeError]
+	LSPS1OrderStatus request_channel(u64 lsp_balance_sat, u64 client_balance_sat, u32 channel_expiry_blocks, boolean announce_channel);
+	[Throws=NodeError]
+	LSPS1OrderStatus check_order_status(OrderId order_id);
+};
+
 [Error]
 enum NodeError {
 	"AlreadyRunning",
@@ -217,6 +226,8 @@ enum NodeError {
 	"InvalidUri",
 	"InvalidQuantity",
 	"InvalidNodeAlias",
+	"InvalidTimestamp",
+	"InvalidFeeRate",
 	"DuplicatePayment",
 	"UnsupportedCurrency",
 	"InsufficientFunds",
@@ -362,6 +373,59 @@ dictionary SendingParameters {
 	u8? max_channel_saturation_power_of_half;
 };
 
+dictionary LSPS1OrderStatus {
+	OrderId order_id;
+	OrderParameters order_params;
+	PaymentInfo payment_options;
+	ChannelOrderInfo? channel_state;
+};
+
+dictionary OrderParameters {
+	u64 lsp_balance_sat;
+	u64 client_balance_sat;
+	u16 required_channel_confirmations;
+	u16 funding_confirms_within_blocks;
+	u32 channel_expiry_blocks;
+	string? token;
+	boolean announce_channel;
+};
+
+dictionary PaymentInfo {
+	Bolt11PaymentInfo? bolt11;
+	OnchainPaymentInfo? onchain;
+};
+
+dictionary Bolt11PaymentInfo {
+	PaymentState state;
+	DateTime expires_at;
+	u64 fee_total_sat;
+	u64 order_total_sat;
+	Bolt11Invoice invoice;
+};
+
+dictionary OnchainPaymentInfo {
+	PaymentState state;
+	DateTime expires_at;
+	u64 fee_total_sat;
+	u64 order_total_sat;
+	Address address;
+	u16? min_onchain_payment_confirmations;
+	FeeRate min_fee_for_0conf;
+	Address? refund_onchain_address;
+};
+
+dictionary ChannelOrderInfo {
+	DateTime funded_at;
+	OutPoint funding_outpoint;
+	DateTime expires_at;
+};
+
+enum PaymentState {
+	"ExpectPayment",
+	"Paid",
+	"Refunded",
+};
+
 [Enum]
 interface MaxTotalRoutingFeeLimit {
 	None ();
@@ -614,3 +678,12 @@ typedef string UntrustedString;
 
 [Custom]
 typedef string NodeAlias;
+
+[Custom]
+typedef string OrderId;
+
+[Custom]
+typedef i64 DateTime;
+
+[Custom]
+typedef string FeeRate;

src/error.rs

@@ -104,6 +104,10 @@ pub enum Error {
 	InvalidQuantity,
 	/// The given node alias is invalid.
 	InvalidNodeAlias,
+	/// The given timestamp is invalid.
+	InvalidTimestamp,
+	/// The given fee rate is invalid.
+	InvalidFeeRate,
 	/// A payment with the given hash has already been initiated.
 	DuplicatePayment,
 	/// The provided offer was denonminated in an unsupported currency.
@@ -169,6 +173,8 @@ impl fmt::Display for Error {
 			Self::InvalidUri => write!(f, "The given URI is invalid."),
 			Self::InvalidQuantity => write!(f, "The given quantity is invalid."),
 			Self::InvalidNodeAlias => write!(f, "The given node alias is invalid."),
+			Self::InvalidTimestamp => write!(f, "The given timestamp is invalid."),
+			Self::InvalidFeeRate => write!(f, "The given fee rate is invalid."),
 			Self::DuplicatePayment => {
 				write!(f, "A payment with the given hash has already been initiated.")
 			},

src/uniffi_types.rs

@@ -14,6 +14,7 @@ pub use crate::config::{
 	default_config, AnchorChannelsConfig, EsploraSyncConfig, MaxDustHTLCExposure,
 };
 pub use crate::graph::{ChannelInfo, ChannelUpdateInfo, NodeAnnouncementInfo, NodeInfo};
+pub use crate::liquidity::LSPS1OrderStatus;
 pub use crate::payment::store::{LSPFeeLimits, PaymentDirection, PaymentKind, PaymentStatus};
 pub use crate::payment::{MaxTotalRoutingFeeLimit, QrPaymentResult, SendingParameters};
 
@@ -28,12 +29,19 @@ pub use lightning::util::string::UntrustedString;
 
 pub use lightning_invoice::Bolt11Invoice;
 
-pub use bitcoin::{Address, BlockHash, Network, OutPoint, Txid};
+pub use lightning_liquidity::lsps1::msgs::ChannelInfo as ChannelOrderInfo;
+pub use lightning_liquidity::lsps1::msgs::{
+	Bolt11PaymentInfo, OnchainPaymentInfo, OrderId, OrderParameters, PaymentInfo, PaymentState,
+};
+
+pub use bitcoin::{Address, BlockHash, FeeRate, Network, OutPoint, Txid};
 
 pub use bip39::Mnemonic;
 
 pub use vss_client::headers::{VssHeaderProvider, VssHeaderProviderError};
 
+pub type DateTime = chrono::DateTime<chrono::Utc>;
+
 use crate::UniffiCustomTypeConverter;
 
 use crate::builder::sanitize_alias;
@@ -343,3 +351,40 @@ impl UniffiCustomTypeConverter for NodeAlias {
 		obj.to_string()
 	}
 }
+
+impl UniffiCustomTypeConverter for OrderId {
+	type Builtin = String;
+
+	fn into_custom(val: Self::Builtin) -> uniffi::Result<Self> {
+		Ok(Self(val))
+	}
+
+	fn from_custom(obj: Self) -> Self::Builtin {
+		obj.0
+	}
+}
+
+impl UniffiCustomTypeConverter for DateTime {
+	type Builtin = i64;
+
+	fn into_custom(val: Self::Builtin) -> uniffi::Result<Self> {
+		DateTime::from_timestamp(val, 0).ok_or(Error::InvalidTimestamp.into())
+	}
+
+	fn from_custom(obj: Self) -> Self::Builtin {
+		obj.timestamp()
+	}
+}
+
+/// FIXME TODO
+impl UniffiCustomTypeConverter for FeeRate {
+	type Builtin = String;
+
+	fn into_custom(val: Self::Builtin) -> uniffi::Result<Self> {
+		Ok(FeeRate::from_str(&val).map_err(|_| Error::InvalidFeeRate)?)
+	}
+
+	fn from_custom(obj: Self) -> Self::Builtin {
+		obj.to_string()
+	}
+}