+#[cfg(feature="no-std")]
+use alloc::{vec::Vec, boxed::Box};
+
+/// Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
+/// See [`PhantomKeysManager`] for more information on phantom node payments.
+///
+/// `phantom_route_hints` parameter:
+/// * Contains channel info for all nodes participating in the phantom invoice
+/// * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
+/// participating node
+/// * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
+/// updated when a channel becomes disabled or closes
+/// * Note that if too many channels are included in [`PhantomRouteHints::channels`], the invoice
+/// may be too long for QR code scanning. To fix this, `PhantomRouteHints::channels` may be pared
+/// down
+///
+/// `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
+/// between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
+/// If `None` is provided for `payment_hash`, then one will be created.
+///
+/// `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
+/// in excess of the current time.
+///
+/// `duration_since_epoch` is the current time since epoch in seconds.
+///
+/// You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
+/// [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`] - 3.
+/// Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
+/// confirmations during routing.
+///
+/// Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
+/// invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
+/// requirement).
+///
+/// [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
+/// [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
+/// [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
+/// [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
+/// [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
+/// [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
+///
+/// This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
+/// available and the current time is supplied by the caller.
+#[no_mangle]
+pub extern "C" fn create_phantom_invoice(mut amt_msat: crate::c_types::derived::COption_u64Z, mut payment_hash: crate::c_types::derived::COption_ThirtyTwoBytesZ, mut description: crate::c_types::Str, mut invoice_expiry_delta_secs: u32, mut phantom_route_hints: crate::c_types::derived::CVec_PhantomRouteHintsZ, mut entropy_source: crate::lightning::sign::EntropySource, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z, mut duration_since_epoch: u64) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
+ let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
+ let mut local_payment_hash = { /*payment_hash*/ let payment_hash_opt = payment_hash; if payment_hash_opt.is_none() { None } else { Some({ { ::lightning::ln::PaymentHash({ payment_hash_opt.take() }.data) }})} };
+ let mut local_phantom_route_hints = Vec::new(); for mut item in phantom_route_hints.into_rust().drain(..) { local_phantom_route_hints.push( { *unsafe { Box::from_raw(item.take_inner()) } }); };
+ let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
+ let mut ret = lightning_invoice::utils::create_phantom_invoice::<crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::util::logger::Logger>(local_amt_msat, local_payment_hash, description.into_string(), invoice_expiry_delta_secs, local_phantom_route_hints, entropy_source, node_signer, logger, network.into_native(), local_min_final_cltv_expiry_delta, core::time::Duration::from_secs(duration_since_epoch));
+ let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
+ local_ret
+}
+
+/// Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
+/// See [`PhantomKeysManager`] for more information on phantom node payments.
+///
+/// `phantom_route_hints` parameter:
+/// * Contains channel info for all nodes participating in the phantom invoice
+/// * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
+/// participating node
+/// * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
+/// updated when a channel becomes disabled or closes
+/// * Note that the route hints generated from `phantom_route_hints` will be limited to a maximum
+/// of 3 hints to ensure that the invoice can be scanned in a QR code. These hints are selected
+/// in the order that the nodes in `PhantomRouteHints` are specified, selecting one hint per node
+/// until the maximum is hit. Callers may provide as many `PhantomRouteHints::channels` as
+/// desired, but note that some nodes will be trimmed if more than 3 nodes are provided.
+///
+/// `description_hash` is a SHA-256 hash of the description text
+///
+/// `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
+/// between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
+/// If `None` is provided for `payment_hash`, then one will be created.
+///
+/// `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
+/// in excess of the current time.
+///
+/// `duration_since_epoch` is the current time since epoch in seconds.
+///
+/// Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
+/// invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
+/// requirement).
+///
+/// [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
+/// [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
+/// [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
+/// [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
+/// [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
+///
+/// This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
+/// available and the current time is supplied by the caller.
+#[no_mangle]
+pub extern "C" fn create_phantom_invoice_with_description_hash(mut amt_msat: crate::c_types::derived::COption_u64Z, mut payment_hash: crate::c_types::derived::COption_ThirtyTwoBytesZ, mut invoice_expiry_delta_secs: u32, mut description_hash: crate::lightning_invoice::Sha256, mut phantom_route_hints: crate::c_types::derived::CVec_PhantomRouteHintsZ, mut entropy_source: crate::lightning::sign::EntropySource, mut node_signer: crate::lightning::sign::NodeSigner, mut logger: crate::lightning::util::logger::Logger, mut network: crate::lightning_invoice::Currency, mut min_final_cltv_expiry_delta: crate::c_types::derived::COption_u16Z, mut duration_since_epoch: u64) -> crate::c_types::derived::CResult_Bolt11InvoiceSignOrCreationErrorZ {
+ let mut local_amt_msat = if amt_msat.is_some() { Some( { amt_msat.take() }) } else { None };
+ let mut local_payment_hash = { /*payment_hash*/ let payment_hash_opt = payment_hash; if payment_hash_opt.is_none() { None } else { Some({ { ::lightning::ln::PaymentHash({ payment_hash_opt.take() }.data) }})} };
+ let mut local_phantom_route_hints = Vec::new(); for mut item in phantom_route_hints.into_rust().drain(..) { local_phantom_route_hints.push( { *unsafe { Box::from_raw(item.take_inner()) } }); };
+ let mut local_min_final_cltv_expiry_delta = if min_final_cltv_expiry_delta.is_some() { Some( { min_final_cltv_expiry_delta.take() }) } else { None };
+ let mut ret = lightning_invoice::utils::create_phantom_invoice_with_description_hash::<crate::lightning::sign::EntropySource, crate::lightning::sign::NodeSigner, crate::lightning::util::logger::Logger>(local_amt_msat, local_payment_hash, invoice_expiry_delta_secs, *unsafe { Box::from_raw(description_hash.take_inner()) }, local_phantom_route_hints, entropy_source, node_signer, logger, network.into_native(), local_min_final_cltv_expiry_delta, core::time::Duration::from_secs(duration_since_epoch));
+ let mut local_ret = match ret { Ok(mut o) => crate::c_types::CResultTempl::ok( { crate::lightning_invoice::Bolt11Invoice { inner: ObjOps::heap_alloc(o), is_owned: true } }).into(), Err(mut e) => crate::c_types::CResultTempl::err( { crate::lightning_invoice::SignOrCreationError::native_into(e) }).into() };
+ local_ret
+}