_ Git - ldk-java/blob - c_sharp/src/org/ldk/structs/UtilMethods.cs

   1 using org.ldk.impl;
   2 using org.ldk.enums;
   3 using org.ldk.util;
   4 using org.ldk.structs;
   5 using System;
   6
   7 namespace org { namespace ldk { namespace util {
   8 public class UtilMethods {
   9         /**
  10          * Gets the 128-bit integer, as 16 little-endian bytes
  11          */
  12         public static byte[] U128_le_bytes(org.ldk.util.UInt128 val) {
  13                 long ret = bindings.U128_le_bytes(InternalUtils.encodeUint8Array(val.getLEBytes()));
  14                 GC.KeepAlive(val);
  15                 if (ret >= 0 && ret <= 4096) { return null; }
  16                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
  17                 return ret_conv;
  18         }
  19
  20         /**
  21          * Constructs a new U128 from 16 little-endian bytes
  22          */
  23         public static UInt128 U128_new(byte[] le_bytes) {
  24                 long ret = bindings.U128_new(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(le_bytes, 16)));
  25                 GC.KeepAlive(le_bytes);
  26                 if (ret >= 0 && ret <= 4096) { return null; }
  27                 org.ldk.util.UInt128 ret_conv = new org.ldk.util.UInt128(ret);
  28                 return ret_conv;
  29         }
  30
  31         /**
  32          * Constructs a new COption_NoneZ containing a
  33          */
  34         public static COption_NoneZ COption_NoneZ_some() {
  35                 COption_NoneZ ret = bindings.COption_NoneZ_some();
  36                 return ret;
  37         }
  38
  39         /**
  40          * Constructs a new COption_NoneZ containing nothing
  41          */
  42         public static COption_NoneZ COption_NoneZ_none() {
  43                 COption_NoneZ ret = bindings.COption_NoneZ_none();
  44                 return ret;
  45         }
  46
  47         /**
  48          * Read a APIError from a byte array, created by APIError_write
  49          */
  50         public static Result_COption_APIErrorZDecodeErrorZ APIError_read(byte[] ser) {
  51                 long ret = bindings.APIError_read(InternalUtils.encodeUint8Array(ser));
  52                 GC.KeepAlive(ser);
  53                 if (ret >= 0 && ret <= 4096) { return null; }
  54                 Result_COption_APIErrorZDecodeErrorZ ret_hu_conv = Result_COption_APIErrorZDecodeErrorZ.constr_from_ptr(ret);
  55                 return ret_hu_conv;
  56         }
  57
  58         /**
  59          * Creates a digital signature of a message given a SecretKey, like the node's secret.
  60          * A receiver knowing the PublicKey (e.g. the node's id) and the message can be sure that the signature was generated by the caller.
  61          * Signatures are EC recoverable, meaning that given the message and the signature the PublicKey of the signer can be extracted.
  62          */
  63         public static Result_StrSecp256k1ErrorZ sign(byte[] msg, byte[] sk) {
  64                 long ret = bindings.sign(InternalUtils.encodeUint8Array(msg), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(sk, 32)));
  65                 GC.KeepAlive(msg);
  66                 GC.KeepAlive(sk);
  67                 if (ret >= 0 && ret <= 4096) { return null; }
  68                 Result_StrSecp256k1ErrorZ ret_hu_conv = Result_StrSecp256k1ErrorZ.constr_from_ptr(ret);
  69                 return ret_hu_conv;
  70         }
  71
  72         /**
  73          * Recovers the PublicKey of the signer of the message given the message and the signature.
  74          */
  75         public static Result_PublicKeySecp256k1ErrorZ recover_pk(byte[] msg, string sig) {
  76                 long ret = bindings.recover_pk(InternalUtils.encodeUint8Array(msg), InternalUtils.encodeString(sig));
  77                 GC.KeepAlive(msg);
  78                 GC.KeepAlive(sig);
  79                 if (ret >= 0 && ret <= 4096) { return null; }
  80                 Result_PublicKeySecp256k1ErrorZ ret_hu_conv = Result_PublicKeySecp256k1ErrorZ.constr_from_ptr(ret);
  81                 return ret_hu_conv;
  82         }
  83
  84         /**
  85          * Verifies a message was signed by a PrivateKey that derives to a given PublicKey, given a message, a signature,
  86          * and the PublicKey.
  87          */
  88         public static bool verify(byte[] msg, string sig, byte[] pk) {
  89                 bool ret = bindings.verify(InternalUtils.encodeUint8Array(msg), InternalUtils.encodeString(sig), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(pk, 33)));
  90                 GC.KeepAlive(msg);
  91                 GC.KeepAlive(sig);
  92                 GC.KeepAlive(pk);
  93                 return ret;
  94         }
  95
  96         /**
  97          * Construct the invoice's HRP and signatureless data into a preimage to be hashed.
  98          */
  99         public static byte[] construct_invoice_preimage(byte[] hrp_bytes, UInt5[] data_without_signature) {
 100                 long ret = bindings.construct_invoice_preimage(InternalUtils.encodeUint8Array(hrp_bytes), InternalUtils.encodeUint8Array(InternalUtils.convUInt5Array(data_without_signature)));
 101                 GC.KeepAlive(hrp_bytes);
 102                 GC.KeepAlive(data_without_signature);
 103                 if (ret >= 0 && ret <= 4096) { return null; }
 104                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 105                 return ret_conv;
 106         }
 107
 108         /**
 109          * Read previously persisted [`ChannelMonitor`]s from the store.
 110          */
 111         public static Result_CVec_C2Tuple_ThirtyTwoBytesChannelMonitorZZIOErrorZ read_channel_monitors(org.ldk.structs.KVStore kv_store, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.SignerProvider signer_provider) {
 112                 long ret = bindings.read_channel_monitors(kv_store.ptr, entropy_source.ptr, signer_provider.ptr);
 113                 GC.KeepAlive(kv_store);
 114                 GC.KeepAlive(entropy_source);
 115                 GC.KeepAlive(signer_provider);
 116                 if (ret >= 0 && ret <= 4096) { return null; }
 117                 Result_CVec_C2Tuple_ThirtyTwoBytesChannelMonitorZZIOErrorZ ret_hu_conv = Result_CVec_C2Tuple_ThirtyTwoBytesChannelMonitorZZIOErrorZ.constr_from_ptr(ret);
 118                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(kv_store); };
 119                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 120                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(signer_provider); };
 121                 return ret_hu_conv;
 122         }
 123
 124         /**
 125          * Extracts the block height (most significant 3-bytes) from the `short_channel_id`
 126          */
 127         public static int block_from_scid(long short_channel_id) {
 128                 int ret = bindings.block_from_scid(short_channel_id);
 129                 GC.KeepAlive(short_channel_id);
 130                 return ret;
 131         }
 132
 133         /**
 134          * Extracts the tx index (bytes [2..4]) from the `short_channel_id`
 135          */
 136         public static int tx_index_from_scid(long short_channel_id) {
 137                 int ret = bindings.tx_index_from_scid(short_channel_id);
 138                 GC.KeepAlive(short_channel_id);
 139                 return ret;
 140         }
 141
 142         /**
 143          * Extracts the vout (bytes [0..2]) from the `short_channel_id`
 144          */
 145         public static short vout_from_scid(long short_channel_id) {
 146                 short ret = bindings.vout_from_scid(short_channel_id);
 147                 GC.KeepAlive(short_channel_id);
 148                 return ret;
 149         }
 150
 151         /**
 152          * Constructs a `short_channel_id` using the components pieces. Results in an error
 153          * if the block height, tx index, or vout index overflow the maximum sizes.
 154          */
 155         public static Result_u64ShortChannelIdErrorZ scid_from_parts(long block, long tx_index, long vout_index) {
 156                 long ret = bindings.scid_from_parts(block, tx_index, vout_index);
 157                 GC.KeepAlive(block);
 158                 GC.KeepAlive(tx_index);
 159                 GC.KeepAlive(vout_index);
 160                 if (ret >= 0 && ret <= 4096) { return null; }
 161                 Result_u64ShortChannelIdErrorZ ret_hu_conv = Result_u64ShortChannelIdErrorZ.constr_from_ptr(ret);
 162                 return ret_hu_conv;
 163         }
 164
 165         /**
 166          * Read a C2Tuple_BestBlockOutputSweeperZ from a byte array, created by C2Tuple_BestBlockOutputSweeperZ_write
 167          */
 168         public static Result_C2Tuple_BestBlockOutputSweeperZDecodeErrorZ C2Tuple_BestBlockOutputSweeperZ_read(byte[] ser, org.ldk.structs.BroadcasterInterface arg_a, org.ldk.structs.FeeEstimator arg_b, org.ldk.structs.Option_FilterZ arg_c, org.ldk.structs.OutputSpender arg_d, org.ldk.structs.ChangeDestinationSource arg_e, org.ldk.structs.KVStore arg_f, org.ldk.structs.Logger arg_g) {
 169                 long ret = bindings.C2Tuple_BestBlockOutputSweeperZ_read(InternalUtils.encodeUint8Array(ser), arg_a.ptr, arg_b.ptr, arg_c.ptr, arg_d.ptr, arg_e.ptr, arg_f.ptr, arg_g.ptr);
 170                 GC.KeepAlive(ser);
 171                 GC.KeepAlive(arg_a);
 172                 GC.KeepAlive(arg_b);
 173                 GC.KeepAlive(arg_c);
 174                 GC.KeepAlive(arg_d);
 175                 GC.KeepAlive(arg_e);
 176                 GC.KeepAlive(arg_f);
 177                 GC.KeepAlive(arg_g);
 178                 if (ret >= 0 && ret <= 4096) { return null; }
 179                 Result_C2Tuple_BestBlockOutputSweeperZDecodeErrorZ ret_hu_conv = Result_C2Tuple_BestBlockOutputSweeperZDecodeErrorZ.constr_from_ptr(ret);
 180                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_a); };
 181                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_b); };
 182                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_c); };
 183                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_d); };
 184                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_e); };
 185                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_f); };
 186                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_g); };
 187                 return ret_hu_conv;
 188         }
 189
 190         /**
 191          * Read a MonitorEvent from a byte array, created by MonitorEvent_write
 192          */
 193         public static Result_COption_MonitorEventZDecodeErrorZ MonitorEvent_read(byte[] ser) {
 194                 long ret = bindings.MonitorEvent_read(InternalUtils.encodeUint8Array(ser));
 195                 GC.KeepAlive(ser);
 196                 if (ret >= 0 && ret <= 4096) { return null; }
 197                 Result_COption_MonitorEventZDecodeErrorZ ret_hu_conv = Result_COption_MonitorEventZDecodeErrorZ.constr_from_ptr(ret);
 198                 return ret_hu_conv;
 199         }
 200
 201         /**
 202          * Read a C2Tuple_ThirtyTwoBytesChannelMonitorZ from a byte array, created by C2Tuple_ThirtyTwoBytesChannelMonitorZ_write
 203          */
 204         public static Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(byte[] ser, org.ldk.structs.EntropySource arg_a, org.ldk.structs.SignerProvider arg_b) {
 205                 long ret = bindings.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(InternalUtils.encodeUint8Array(ser), arg_a.ptr, arg_b.ptr);
 206                 GC.KeepAlive(ser);
 207                 GC.KeepAlive(arg_a);
 208                 GC.KeepAlive(arg_b);
 209                 if (ret >= 0 && ret <= 4096) { return null; }
 210                 Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.constr_from_ptr(ret);
 211                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_a); };
 212                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_b); };
 213                 return ret_hu_conv;
 214         }
 215
 216         /**
 217          * Peel one layer off an incoming onion, returning a [`PendingHTLCInfo`] that contains information
 218          * about the intended next-hop for the HTLC.
 219          *
 220          * This does all the relevant context-free checks that LDK requires for payment relay or
 221          * acceptance. If the payment is to be received, and the amount matches the expected amount for
 222          * a given invoice, this indicates the [`msgs::UpdateAddHTLC`], once fully committed in the
 223          * channel, will generate an [`Event::PaymentClaimable`].
 224          *
 225          * [`Event::PaymentClaimable`]: crate::events::Event::PaymentClaimable
 226          */
 227         public static Result_PendingHTLCInfoInboundHTLCErrZ peel_payment_onion(org.ldk.structs.UpdateAddHTLC msg, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, int cur_height, bool accept_mpp_keysend, bool allow_skimmed_fees) {
 228                 long ret = bindings.peel_payment_onion(msg.ptr, node_signer.ptr, logger.ptr, cur_height, accept_mpp_keysend, allow_skimmed_fees);
 229                 GC.KeepAlive(msg);
 230                 GC.KeepAlive(node_signer);
 231                 GC.KeepAlive(logger);
 232                 GC.KeepAlive(cur_height);
 233                 GC.KeepAlive(accept_mpp_keysend);
 234                 GC.KeepAlive(allow_skimmed_fees);
 235                 if (ret >= 0 && ret <= 4096) { return null; }
 236                 Result_PendingHTLCInfoInboundHTLCErrZ ret_hu_conv = Result_PendingHTLCInfoInboundHTLCErrZ.constr_from_ptr(ret);
 237                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 238                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 239                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 240                 return ret_hu_conv;
 241         }
 242
 243         /**
 244          * Fetches the set of [`InitFeatures`] flags that are provided by or required by
 245          * [`ChannelManager`].
 246          */
 247         public static InitFeatures provided_init_features(org.ldk.structs.UserConfig config) {
 248                 long ret = bindings.provided_init_features(config.ptr);
 249                 GC.KeepAlive(config);
 250                 if (ret >= 0 && ret <= 4096) { return null; }
 251                 org.ldk.structs.InitFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.InitFeatures(null, ret); }
 252                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(ret_hu_conv); };
 253                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(config); };
 254                 return ret_hu_conv;
 255         }
 256
 257         /**
 258          * Read a C2Tuple_ThirtyTwoBytesChannelManagerZ from a byte array, created by C2Tuple_ThirtyTwoBytesChannelManagerZ_write
 259          */
 260         public static Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ C2Tuple_ThirtyTwoBytesChannelManagerZ_read(byte[] ser, EntropySource arg_entropy_source, NodeSigner arg_node_signer, SignerProvider arg_signer_provider, FeeEstimator arg_fee_estimator, Watch arg_chain_monitor, BroadcasterInterface arg_tx_broadcaster, Router arg_router, Logger arg_logger, UserConfig arg_default_config, ChannelMonitor[] arg_channel_monitors) {
 261                 long ret = bindings.C2Tuple_ThirtyTwoBytesChannelManagerZ_read(InternalUtils.encodeUint8Array(ser), bindings.ChannelManagerReadArgs_new(arg_entropy_source.ptr, arg_node_signer.ptr, arg_signer_provider.ptr, arg_fee_estimator.ptr, arg_chain_monitor.ptr, arg_tx_broadcaster.ptr, arg_router.ptr, arg_logger.ptr, arg_default_config.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(arg_channel_monitors, arg_channel_monitors_conv_16 => arg_channel_monitors_conv_16.ptr))));
 262                 GC.KeepAlive(ser);
 263                 GC.KeepAlive(arg_entropy_source);
 264                 GC.KeepAlive(arg_node_signer);
 265                 GC.KeepAlive(arg_signer_provider);
 266                 GC.KeepAlive(arg_fee_estimator);
 267                 GC.KeepAlive(arg_chain_monitor);
 268                 GC.KeepAlive(arg_tx_broadcaster);
 269                 GC.KeepAlive(arg_router);
 270                 GC.KeepAlive(arg_logger);
 271                 GC.KeepAlive(arg_default_config);
 272                 GC.KeepAlive(arg_channel_monitors);
 273                 if (ret >= 0 && ret <= 4096) { return null; }
 274                 Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ.constr_from_ptr(ret);
 275                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_entropy_source); };
 276                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_node_signer); };
 277                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_signer_provider); };
 278                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_fee_estimator); };
 279                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_chain_monitor); };
 280                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_tx_broadcaster); };
 281                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_router); };
 282                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_logger); };
 283                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_default_config); };
 284                 foreach (ChannelMonitor arg_channel_monitors_conv_16 in arg_channel_monitors) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(arg_channel_monitors_conv_16); }; };
 285                 return ret_hu_conv;
 286         }
 287
 288         /**
 289          * Adds a tweak to a public key to derive a new public key.
 290          *
 291          * May panic if `tweak` is not the output of a SHA-256 hash.
 292          */
 293         public static byte[] add_public_key_tweak(byte[] base_point, byte[] tweak) {
 294                 long ret = bindings.add_public_key_tweak(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(base_point, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(tweak, 32)));
 295                 GC.KeepAlive(base_point);
 296                 GC.KeepAlive(tweak);
 297                 if (ret >= 0 && ret <= 4096) { return null; }
 298                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 299                 return ret_conv;
 300         }
 301
 302         /**
 303          * Read a InboundHTLCStateDetails from a byte array, created by InboundHTLCStateDetails_write
 304          */
 305         public static Result_COption_InboundHTLCStateDetailsZDecodeErrorZ InboundHTLCStateDetails_read(byte[] ser) {
 306                 long ret = bindings.InboundHTLCStateDetails_read(InternalUtils.encodeUint8Array(ser));
 307                 GC.KeepAlive(ser);
 308                 if (ret >= 0 && ret <= 4096) { return null; }
 309                 Result_COption_InboundHTLCStateDetailsZDecodeErrorZ ret_hu_conv = Result_COption_InboundHTLCStateDetailsZDecodeErrorZ.constr_from_ptr(ret);
 310                 return ret_hu_conv;
 311         }
 312
 313         /**
 314          * Read a OutboundHTLCStateDetails from a byte array, created by OutboundHTLCStateDetails_write
 315          */
 316         public static Result_COption_OutboundHTLCStateDetailsZDecodeErrorZ OutboundHTLCStateDetails_read(byte[] ser) {
 317                 long ret = bindings.OutboundHTLCStateDetails_read(InternalUtils.encodeUint8Array(ser));
 318                 GC.KeepAlive(ser);
 319                 if (ret >= 0 && ret <= 4096) { return null; }
 320                 Result_COption_OutboundHTLCStateDetailsZDecodeErrorZ ret_hu_conv = Result_COption_OutboundHTLCStateDetailsZDecodeErrorZ.constr_from_ptr(ret);
 321                 return ret_hu_conv;
 322         }
 323
 324         /**
 325          * Equivalent to [`crate::ln::channelmanager::ChannelManager::create_inbound_payment`], but no
 326          * `ChannelManager` is required. Useful for generating invoices for [phantom node payments] without
 327          * a `ChannelManager`.
 328          *
 329          * `keys` is generated by calling [`NodeSigner::get_inbound_payment_key_material`] and then
 330          * calling [`ExpandedKey::new`] with its result. It is recommended to cache this value and not
 331          * regenerate it for each new inbound payment.
 332          *
 333          * `current_time` is a Unix timestamp representing the current time.
 334          *
 335          * Note that if `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
 336          * on versions of LDK prior to 0.0.114.
 337          *
 338          * [phantom node payments]: crate::sign::PhantomKeysManager
 339          * [`NodeSigner::get_inbound_payment_key_material`]: crate::sign::NodeSigner::get_inbound_payment_key_material
 340          */
 341         public static Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ create(org.ldk.structs.ExpandedKey keys, org.ldk.structs.Option_u64Z min_value_msat, int invoice_expiry_delta_secs, org.ldk.structs.EntropySource entropy_source, long current_time, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 342                 long ret = bindings.create(keys.ptr, min_value_msat.ptr, invoice_expiry_delta_secs, entropy_source.ptr, current_time, min_final_cltv_expiry_delta.ptr);
 343                 GC.KeepAlive(keys);
 344                 GC.KeepAlive(min_value_msat);
 345                 GC.KeepAlive(invoice_expiry_delta_secs);
 346                 GC.KeepAlive(entropy_source);
 347                 GC.KeepAlive(current_time);
 348                 GC.KeepAlive(min_final_cltv_expiry_delta);
 349                 if (ret >= 0 && ret <= 4096) { return null; }
 350                 Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ ret_hu_conv = Result_C2Tuple_ThirtyTwoBytesThirtyTwoBytesZNoneZ.constr_from_ptr(ret);
 351                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(keys); };
 352                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_value_msat); };
 353                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 354                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
 355                 return ret_hu_conv;
 356         }
 357
 358         /**
 359          * Equivalent to [`crate::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash`],
 360          * but no `ChannelManager` is required. Useful for generating invoices for [phantom node payments]
 361          * without a `ChannelManager`.
 362          *
 363          * See [`create`] for information on the `keys` and `current_time` parameters.
 364          *
 365          * Note that if `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
 366          * on versions of LDK prior to 0.0.114.
 367          *
 368          * [phantom node payments]: crate::sign::PhantomKeysManager
 369          */
 370         public static Result_ThirtyTwoBytesNoneZ create_from_hash(org.ldk.structs.ExpandedKey keys, org.ldk.structs.Option_u64Z min_value_msat, byte[] payment_hash, int invoice_expiry_delta_secs, long current_time, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
 371                 long ret = bindings.create_from_hash(keys.ptr, min_value_msat.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), invoice_expiry_delta_secs, current_time, min_final_cltv_expiry_delta.ptr);
 372                 GC.KeepAlive(keys);
 373                 GC.KeepAlive(min_value_msat);
 374                 GC.KeepAlive(payment_hash);
 375                 GC.KeepAlive(invoice_expiry_delta_secs);
 376                 GC.KeepAlive(current_time);
 377                 GC.KeepAlive(min_final_cltv_expiry_delta);
 378                 if (ret >= 0 && ret <= 4096) { return null; }
 379                 Result_ThirtyTwoBytesNoneZ ret_hu_conv = Result_ThirtyTwoBytesNoneZ.constr_from_ptr(ret);
 380                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(keys); };
 381                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_value_msat); };
 382                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
 383                 return ret_hu_conv;
 384         }
 385
 386         /**
 387          * Parses an OnionV3 host and port into a [`SocketAddress::OnionV3`].
 388          *
 389          * The host part must end with \".onion\".
 390          */
 391         public static Result_SocketAddressSocketAddressParseErrorZ parse_onion_address(string host, short port) {
 392                 long ret = bindings.parse_onion_address(InternalUtils.encodeString(host), port);
 393                 GC.KeepAlive(host);
 394                 GC.KeepAlive(port);
 395                 if (ret >= 0 && ret <= 4096) { return null; }
 396                 Result_SocketAddressSocketAddressParseErrorZ ret_hu_conv = Result_SocketAddressSocketAddressParseErrorZ.constr_from_ptr(ret);
 397                 return ret_hu_conv;
 398         }
 399
 400         /**
 401          * Gets the weight for an HTLC-Success transaction.
 402          */
 403         public static long htlc_success_tx_weight(org.ldk.structs.ChannelTypeFeatures channel_type_features) {
 404                 long ret = bindings.htlc_success_tx_weight(channel_type_features.ptr);
 405                 GC.KeepAlive(channel_type_features);
 406                 return ret;
 407         }
 408
 409         /**
 410          * Gets the weight for an HTLC-Timeout transaction.
 411          */
 412         public static long htlc_timeout_tx_weight(org.ldk.structs.ChannelTypeFeatures channel_type_features) {
 413                 long ret = bindings.htlc_timeout_tx_weight(channel_type_features.ptr);
 414                 GC.KeepAlive(channel_type_features);
 415                 return ret;
 416         }
 417
 418         /**
 419          * Check if a given input witness attempts to claim a HTLC.
 420          */
 421         public static Option_HTLCClaimZ HTLCClaim_from_witness(byte[] witness) {
 422                 long ret = bindings.HTLCClaim_from_witness(InternalUtils.encodeUint8Array(witness));
 423                 GC.KeepAlive(witness);
 424                 if (ret >= 0 && ret <= 4096) { return null; }
 425                 org.ldk.structs.Option_HTLCClaimZ ret_hu_conv = org.ldk.structs.Option_HTLCClaimZ.constr_from_ptr(ret);
 426                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(ret_hu_conv); };
 427                 return ret_hu_conv;
 428         }
 429
 430         /**
 431          * Build the commitment secret from the seed and the commitment number
 432          */
 433         public static byte[] build_commitment_secret(byte[] commitment_seed, long idx) {
 434                 long ret = bindings.build_commitment_secret(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(commitment_seed, 32)), idx);
 435                 GC.KeepAlive(commitment_seed);
 436                 GC.KeepAlive(idx);
 437                 if (ret >= 0 && ret <= 4096) { return null; }
 438                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 439                 return ret_conv;
 440         }
 441
 442         /**
 443          * Build a closing transaction
 444          */
 445         public static byte[] build_closing_transaction(long to_holder_value_sat, long to_counterparty_value_sat, byte[] to_holder_script, byte[] to_counterparty_script, org.ldk.structs.OutPoint funding_outpoint) {
 446                 long ret = bindings.build_closing_transaction(to_holder_value_sat, to_counterparty_value_sat, InternalUtils.encodeUint8Array(to_holder_script), InternalUtils.encodeUint8Array(to_counterparty_script), funding_outpoint.ptr);
 447                 GC.KeepAlive(to_holder_value_sat);
 448                 GC.KeepAlive(to_counterparty_value_sat);
 449                 GC.KeepAlive(to_holder_script);
 450                 GC.KeepAlive(to_counterparty_script);
 451                 GC.KeepAlive(funding_outpoint);
 452                 if (ret >= 0 && ret <= 4096) { return null; }
 453                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 454                 return ret_conv;
 455         }
 456
 457         /**
 458          * Derives a per-commitment-transaction private key (eg an htlc key or delayed_payment key)
 459          * from the base secret and the per_commitment_point.
 460          */
 461         public static byte[] derive_private_key(byte[] per_commitment_point, byte[] base_secret) {
 462                 long ret = bindings.derive_private_key(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(per_commitment_point, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(base_secret, 32)));
 463                 GC.KeepAlive(per_commitment_point);
 464                 GC.KeepAlive(base_secret);
 465                 if (ret >= 0 && ret <= 4096) { return null; }
 466                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 467                 return ret_conv;
 468         }
 469
 470         /**
 471          * Derives a per-commitment-transaction revocation key from its constituent parts.
 472          *
 473          * Only the cheating participant owns a valid witness to propagate a revoked
 474          * commitment transaction, thus per_commitment_secret always come from cheater
 475          * and revocation_base_secret always come from punisher, which is the broadcaster
 476          * of the transaction spending with this key knowledge.
 477          */
 478         public static byte[] derive_private_revocation_key(byte[] per_commitment_secret, byte[] countersignatory_revocation_base_secret) {
 479                 long ret = bindings.derive_private_revocation_key(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(per_commitment_secret, 32)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(countersignatory_revocation_base_secret, 32)));
 480                 GC.KeepAlive(per_commitment_secret);
 481                 GC.KeepAlive(countersignatory_revocation_base_secret);
 482                 if (ret >= 0 && ret <= 4096) { return null; }
 483                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 484                 return ret_conv;
 485         }
 486
 487         /**
 488          * A script either spendable by the revocation
 489          * key or the broadcaster_delayed_payment_key and satisfying the relative-locktime OP_CSV constrain.
 490          * Encumbering a `to_holder` output on a commitment transaction or 2nd-stage HTLC transactions.
 491          */
 492         public static byte[] get_revokeable_redeemscript(org.ldk.structs.RevocationKey revocation_key, short contest_delay, org.ldk.structs.DelayedPaymentKey broadcaster_delayed_payment_key) {
 493                 long ret = bindings.get_revokeable_redeemscript(revocation_key.ptr, contest_delay, broadcaster_delayed_payment_key.ptr);
 494                 GC.KeepAlive(revocation_key);
 495                 GC.KeepAlive(contest_delay);
 496                 GC.KeepAlive(broadcaster_delayed_payment_key);
 497                 if (ret >= 0 && ret <= 4096) { return null; }
 498                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 499                 return ret_conv;
 500         }
 501
 502         /**
 503          * Returns the script for the counterparty's output on a holder's commitment transaction based on
 504          * the channel type.
 505          */
 506         public static byte[] get_counterparty_payment_script(org.ldk.structs.ChannelTypeFeatures channel_type_features, byte[] payment_key) {
 507                 long ret = bindings.get_counterparty_payment_script(channel_type_features.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_key, 33)));
 508                 GC.KeepAlive(channel_type_features);
 509                 GC.KeepAlive(payment_key);
 510                 if (ret >= 0 && ret <= 4096) { return null; }
 511                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 512                 return ret_conv;
 513         }
 514
 515         /**
 516          * Gets the witness redeemscript for an HTLC output in a commitment transaction. Note that htlc
 517          * does not need to have its previous_output_index filled.
 518          */
 519         public static byte[] get_htlc_redeemscript(org.ldk.structs.HTLCOutputInCommitment htlc, org.ldk.structs.ChannelTypeFeatures channel_type_features, org.ldk.structs.TxCreationKeys keys) {
 520                 long ret = bindings.get_htlc_redeemscript(htlc.ptr, channel_type_features.ptr, keys.ptr);
 521                 GC.KeepAlive(htlc);
 522                 GC.KeepAlive(channel_type_features);
 523                 GC.KeepAlive(keys);
 524                 if (ret >= 0 && ret <= 4096) { return null; }
 525                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 526                 return ret_conv;
 527         }
 528
 529         /**
 530          * Gets the redeemscript for a funding output from the two funding public keys.
 531          * Note that the order of funding public keys does not matter.
 532          */
 533         public static byte[] make_funding_redeemscript(byte[] broadcaster, byte[] countersignatory) {
 534                 long ret = bindings.make_funding_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(broadcaster, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(countersignatory, 33)));
 535                 GC.KeepAlive(broadcaster);
 536                 GC.KeepAlive(countersignatory);
 537                 if (ret >= 0 && ret <= 4096) { return null; }
 538                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 539                 return ret_conv;
 540         }
 541
 542         /**
 543          * Builds an unsigned HTLC-Success or HTLC-Timeout transaction from the given channel and HTLC
 544          * parameters. This is used by [`TrustedCommitmentTransaction::get_htlc_sigs`] to fetch the
 545          * transaction which needs signing, and can be used to construct an HTLC transaction which is
 546          * broadcastable given a counterparty HTLC signature.
 547          *
 548          * Panics if htlc.transaction_output_index.is_none() (as such HTLCs do not appear in the
 549          * commitment transaction).
 550          */
 551         public static byte[] build_htlc_transaction(byte[] commitment_txid, int feerate_per_kw, short contest_delay, org.ldk.structs.HTLCOutputInCommitment htlc, org.ldk.structs.ChannelTypeFeatures channel_type_features, org.ldk.structs.DelayedPaymentKey broadcaster_delayed_payment_key, org.ldk.structs.RevocationKey revocation_key) {
 552                 long ret = bindings.build_htlc_transaction(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(commitment_txid, 32)), feerate_per_kw, contest_delay, htlc.ptr, channel_type_features.ptr, broadcaster_delayed_payment_key.ptr, revocation_key.ptr);
 553                 GC.KeepAlive(commitment_txid);
 554                 GC.KeepAlive(feerate_per_kw);
 555                 GC.KeepAlive(contest_delay);
 556                 GC.KeepAlive(htlc);
 557                 GC.KeepAlive(channel_type_features);
 558                 GC.KeepAlive(broadcaster_delayed_payment_key);
 559                 GC.KeepAlive(revocation_key);
 560                 if (ret >= 0 && ret <= 4096) { return null; }
 561                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 562                 return ret_conv;
 563         }
 564
 565         /**
 566          * Returns the witness required to satisfy and spend a HTLC input.
 567          */
 568         public static byte[] build_htlc_input_witness(byte[] local_sig, byte[] remote_sig, org.ldk.structs.Option_ThirtyTwoBytesZ preimage, byte[] redeem_script, org.ldk.structs.ChannelTypeFeatures channel_type_features) {
 569                 long ret = bindings.build_htlc_input_witness(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(local_sig, 64)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(remote_sig, 64)), preimage.ptr, InternalUtils.encodeUint8Array(redeem_script), channel_type_features.ptr);
 570                 GC.KeepAlive(local_sig);
 571                 GC.KeepAlive(remote_sig);
 572                 GC.KeepAlive(preimage);
 573                 GC.KeepAlive(redeem_script);
 574                 GC.KeepAlive(channel_type_features);
 575                 if (ret >= 0 && ret <= 4096) { return null; }
 576                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 577                 return ret_conv;
 578         }
 579
 580         /**
 581          * Gets the witnessScript for the to_remote output when anchors are enabled.
 582          */
 583         public static byte[] get_to_countersignatory_with_anchors_redeemscript(byte[] payment_point) {
 584                 long ret = bindings.get_to_countersignatory_with_anchors_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_point, 33)));
 585                 GC.KeepAlive(payment_point);
 586                 if (ret >= 0 && ret <= 4096) { return null; }
 587                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 588                 return ret_conv;
 589         }
 590
 591         /**
 592          * Gets the witnessScript for an anchor output from the funding public key.
 593          * The witness in the spending input must be:
 594          * <BIP 143 funding_signature>
 595          * After 16 blocks of confirmation, an alternative satisfying witness could be:
 596          * <>
 597          * (empty vector required to satisfy compliance with MINIMALIF-standard rule)
 598          */
 599         public static byte[] get_anchor_redeemscript(byte[] funding_pubkey) {
 600                 long ret = bindings.get_anchor_redeemscript(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(funding_pubkey, 33)));
 601                 GC.KeepAlive(funding_pubkey);
 602                 if (ret >= 0 && ret <= 4096) { return null; }
 603                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 604                 return ret_conv;
 605         }
 606
 607         /**
 608          * Returns the witness required to satisfy and spend an anchor input.
 609          */
 610         public static byte[] build_anchor_input_witness(byte[] funding_key, byte[] funding_sig) {
 611                 long ret = bindings.build_anchor_input_witness(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(funding_key, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(funding_sig, 64)));
 612                 GC.KeepAlive(funding_key);
 613                 GC.KeepAlive(funding_sig);
 614                 if (ret >= 0 && ret <= 4096) { return null; }
 615                 byte[] ret_conv = InternalUtils.decodeUint8Array(ret);
 616                 return ret_conv;
 617         }
 618
 619         /**
 620          * Commitment transaction numbers which appear in the transactions themselves are XOR'd with a
 621          * shared secret first. This prevents on-chain observers from discovering how many commitment
 622          * transactions occurred in a channel before it was closed.
 623          *
 624          * This function gets the shared secret from relevant channel public keys and can be used to
 625          * \"decrypt\" the commitment transaction number given a commitment transaction on-chain.
 626          */
 627         public static long get_commitment_transaction_number_obscure_factor(byte[] broadcaster_payment_basepoint, byte[] countersignatory_payment_basepoint, bool outbound_from_broadcaster) {
 628                 long ret = bindings.get_commitment_transaction_number_obscure_factor(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(broadcaster_payment_basepoint, 33)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(countersignatory_payment_basepoint, 33)), outbound_from_broadcaster);
 629                 GC.KeepAlive(broadcaster_payment_basepoint);
 630                 GC.KeepAlive(countersignatory_payment_basepoint);
 631                 GC.KeepAlive(outbound_from_broadcaster);
 632                 return ret;
 633         }
 634
 635         /**
 636          * Read a NetworkUpdate from a byte array, created by NetworkUpdate_write
 637          */
 638         public static Result_COption_NetworkUpdateZDecodeErrorZ NetworkUpdate_read(byte[] ser) {
 639                 long ret = bindings.NetworkUpdate_read(InternalUtils.encodeUint8Array(ser));
 640                 GC.KeepAlive(ser);
 641                 if (ret >= 0 && ret <= 4096) { return null; }
 642                 Result_COption_NetworkUpdateZDecodeErrorZ ret_hu_conv = Result_COption_NetworkUpdateZDecodeErrorZ.constr_from_ptr(ret);
 643                 return ret_hu_conv;
 644         }
 645
 646         /**
 647          * Verifies the signature of a [`NodeAnnouncement`].
 648          *
 649          * Returns an error if it is invalid.
 650          */
 651         public static Result_NoneLightningErrorZ verify_node_announcement(org.ldk.structs.NodeAnnouncement msg) {
 652                 long ret = bindings.verify_node_announcement(msg.ptr);
 653                 GC.KeepAlive(msg);
 654                 if (ret >= 0 && ret <= 4096) { return null; }
 655                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 656                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 657                 return ret_hu_conv;
 658         }
 659
 660         /**
 661          * Verifies all signatures included in a [`ChannelAnnouncement`].
 662          *
 663          * Returns an error if one of the signatures is invalid.
 664          */
 665         public static Result_NoneLightningErrorZ verify_channel_announcement(org.ldk.structs.ChannelAnnouncement msg) {
 666                 long ret = bindings.verify_channel_announcement(msg.ptr);
 667                 GC.KeepAlive(msg);
 668                 if (ret >= 0 && ret <= 4096) { return null; }
 669                 Result_NoneLightningErrorZ ret_hu_conv = Result_NoneLightningErrorZ.constr_from_ptr(ret);
 670                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 671                 return ret_hu_conv;
 672         }
 673
 674         /**
 675          * Finds a route from us (payer) to the given target node (payee).
 676          *
 677          * If the payee provided features in their invoice, they should be provided via the `payee` field
 678          * in the given [`RouteParameters::payment_params`].
 679          * Without this, MPP will only be used if the payee's features are available in the network graph.
 680          *
 681          * Private routing paths between a public node and the target may be included in the `payee` field
 682          * of [`RouteParameters::payment_params`].
 683          *
 684          * If some channels aren't announced, it may be useful to fill in `first_hops` with the results
 685          * from [`ChannelManager::list_usable_channels`]. If it is filled in, the view of these channels
 686          * from `network_graph` will be ignored, and only those in `first_hops` will be used.
 687          *
 688          * The fees on channels from us to the next hop are ignored as they are assumed to all be equal.
 689          * However, the enabled/disabled bit on such channels as well as the `htlc_minimum_msat` /
 690          * `htlc_maximum_msat` *are* checked as they may change based on the receiving node.
 691          *
 692          * # Panics
 693          *
 694          * Panics if first_hops contains channels without `short_channel_id`s;
 695          * [`ChannelManager::list_usable_channels`] will never include such channels.
 696          *
 697          * [`ChannelManager::list_usable_channels`]: crate::ln::channelmanager::ChannelManager::list_usable_channels
 698          * [`Event::PaymentPathFailed`]: crate::events::Event::PaymentPathFailed
 699          * [`NetworkGraph`]: crate::routing::gossip::NetworkGraph
 700          *
 701          * Note that first_hops (or a relevant inner pointer) may be NULL or all-0s to represent None
 702          */
 703         public static Result_RouteLightningErrorZ find_route(byte[] our_node_pubkey, org.ldk.structs.RouteParameters route_params, org.ldk.structs.NetworkGraph network_graph, ChannelDetails[] first_hops, org.ldk.structs.Logger logger, org.ldk.structs.ScoreLookUp scorer, org.ldk.structs.ProbabilisticScoringFeeParameters score_params, byte[] random_seed_bytes) {
 704                 long ret = bindings.find_route(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(our_node_pubkey, 33)), route_params.ptr, network_graph.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(first_hops, first_hops_conv_16 => first_hops_conv_16.ptr)), logger.ptr, scorer.ptr, score_params.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(random_seed_bytes, 32)));
 705                 GC.KeepAlive(our_node_pubkey);
 706                 GC.KeepAlive(route_params);
 707                 GC.KeepAlive(network_graph);
 708                 GC.KeepAlive(first_hops);
 709                 GC.KeepAlive(logger);
 710                 GC.KeepAlive(scorer);
 711                 GC.KeepAlive(score_params);
 712                 GC.KeepAlive(random_seed_bytes);
 713                 if (ret >= 0 && ret <= 4096) { return null; }
 714                 Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
 715                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(route_params); };
 716                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(network_graph); };
 717                 if (first_hops != null) { foreach (ChannelDetails first_hops_conv_16 in first_hops) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(first_hops_conv_16); }; } };
 718                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 719                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(scorer); };
 720                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(score_params); };
 721                 return ret_hu_conv;
 722         }
 723
 724         /**
 725          * Construct a route from us (payer) to the target node (payee) via the given hops (which should
 726          * exclude the payer, but include the payee). This may be useful, e.g., for probing the chosen path.
 727          *
 728          * Re-uses logic from `find_route`, so the restrictions described there also apply here.
 729          */
 730         public static Result_RouteLightningErrorZ build_route_from_hops(byte[] our_node_pubkey, byte[][] hops, org.ldk.structs.RouteParameters route_params, org.ldk.structs.NetworkGraph network_graph, org.ldk.structs.Logger logger, byte[] random_seed_bytes) {
 731                 long ret = bindings.build_route_from_hops(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(our_node_pubkey, 33)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(hops, hops_conv_8 => InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(hops_conv_8, 33)))), route_params.ptr, network_graph.ptr, logger.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(random_seed_bytes, 32)));
 732                 GC.KeepAlive(our_node_pubkey);
 733                 GC.KeepAlive(hops);
 734                 GC.KeepAlive(route_params);
 735                 GC.KeepAlive(network_graph);
 736                 GC.KeepAlive(logger);
 737                 GC.KeepAlive(random_seed_bytes);
 738                 if (ret >= 0 && ret <= 4096) { return null; }
 739                 Result_RouteLightningErrorZ ret_hu_conv = Result_RouteLightningErrorZ.constr_from_ptr(ret);
 740                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(route_params); };
 741                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(network_graph); };
 742                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 743                 return ret_hu_conv;
 744         }
 745
 746         /**
 747          * Creates an unsigned [`PartiallySignedTransaction`] which spends the given descriptors to
 748          * the given outputs, plus an output to the given change destination (if sufficient
 749          * change value remains). The PSBT will have a feerate, at least, of the given value.
 750          *
 751          * The `locktime` argument is used to set the transaction's locktime. If `None`, the
 752          * transaction will have a locktime of 0. It it recommended to set this to the current block
 753          * height to avoid fee sniping, unless you have some specific reason to use a different
 754          * locktime.
 755          *
 756          * Returns the PSBT and expected max transaction weight.
 757          *
 758          * Returns `Err(())` if the output value is greater than the input value minus required fee,
 759          * if a descriptor was duplicated, or if an output descriptor `script_pubkey`
 760          * does not match the one we can spend.
 761          *
 762          * We do not enforce that outputs meet the dust limit or that any output scripts are standard.
 763          */
 764         public static Result_C2Tuple_CVec_u8Zu64ZNoneZ SpendableOutputDescriptor_create_spendable_outputs_psbt(SpendableOutputDescriptor[] descriptors, TxOut[] outputs, byte[] change_destination_script, int feerate_sat_per_1000_weight, org.ldk.structs.Option_u32Z locktime) {
 765                 long ret = bindings.SpendableOutputDescriptor_create_spendable_outputs_psbt(InternalUtils.encodeUint64Array(InternalUtils.mapArray(descriptors, descriptors_conv_27 => descriptors_conv_27.ptr)), InternalUtils.encodeUint64Array(InternalUtils.mapArray(outputs, outputs_conv_7 => outputs_conv_7.ptr)), InternalUtils.encodeUint8Array(change_destination_script), feerate_sat_per_1000_weight, locktime.ptr);
 766                 GC.KeepAlive(descriptors);
 767                 GC.KeepAlive(outputs);
 768                 GC.KeepAlive(change_destination_script);
 769                 GC.KeepAlive(feerate_sat_per_1000_weight);
 770                 GC.KeepAlive(locktime);
 771                 if (ret >= 0 && ret <= 4096) { return null; }
 772                 Result_C2Tuple_CVec_u8Zu64ZNoneZ ret_hu_conv = Result_C2Tuple_CVec_u8Zu64ZNoneZ.constr_from_ptr(ret);
 773                 foreach (SpendableOutputDescriptor descriptors_conv_27 in descriptors) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(descriptors_conv_27); }; };
 774                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(locktime); };
 775                 return ret_hu_conv;
 776         }
 777
 778         /**
 779          * Creates an [`OnionMessage`] with the given `contents` for sending to the destination of
 780          * `path`, first calling [`Destination::resolve`] on `path.destination` with the given
 781          * [`ReadOnlyNetworkGraph`].
 782          *
 783          * Returns the node id of the peer to send the message to, the message itself, and any addresses
 784          * needed to connect to the first node.
 785          *
 786          * Note that reply_path (or a relevant inner pointer) may be NULL or all-0s to represent None
 787          */
 788         public static Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ create_onion_message_resolving_destination(org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.NodeIdLookUp node_id_lookup, org.ldk.structs.ReadOnlyNetworkGraph network_graph, org.ldk.structs.OnionMessagePath path, org.ldk.structs.OnionMessageContents contents, org.ldk.structs.BlindedPath reply_path) {
 789                 long ret = bindings.create_onion_message_resolving_destination(entropy_source.ptr, node_signer.ptr, node_id_lookup.ptr, network_graph.ptr, path.ptr, contents.ptr, reply_path == null ? 0 : reply_path.ptr);
 790                 GC.KeepAlive(entropy_source);
 791                 GC.KeepAlive(node_signer);
 792                 GC.KeepAlive(node_id_lookup);
 793                 GC.KeepAlive(network_graph);
 794                 GC.KeepAlive(path);
 795                 GC.KeepAlive(contents);
 796                 GC.KeepAlive(reply_path);
 797                 if (ret >= 0 && ret <= 4096) { return null; }
 798                 Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ ret_hu_conv = Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ.constr_from_ptr(ret);
 799                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 800                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 801                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_id_lookup); };
 802                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(network_graph); };
 803                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(path); };
 804                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(contents); };
 805                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(reply_path); };
 806                 return ret_hu_conv;
 807         }
 808
 809         /**
 810          * Creates an [`OnionMessage`] with the given `contents` for sending to the destination of
 811          * `path`.
 812          *
 813          * Returns the node id of the peer to send the message to, the message itself, and any addresses
 814          * needed to connect to the first node.
 815          *
 816          * Returns [`SendError::UnresolvedIntroductionNode`] if:
 817          * - `destination` contains a blinded path with an [`IntroductionNode::DirectedShortChannelId`],
 818          * - unless it can be resolved by [`NodeIdLookUp::next_node_id`].
 819          * Use [`create_onion_message_resolving_destination`] instead to resolve the introduction node
 820          * first with a [`ReadOnlyNetworkGraph`].
 821          *
 822          * Note that reply_path (or a relevant inner pointer) may be NULL or all-0s to represent None
 823          */
 824         public static Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ create_onion_message(org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.NodeIdLookUp node_id_lookup, org.ldk.structs.OnionMessagePath path, org.ldk.structs.OnionMessageContents contents, org.ldk.structs.BlindedPath reply_path) {
 825                 long ret = bindings.create_onion_message(entropy_source.ptr, node_signer.ptr, node_id_lookup.ptr, path.ptr, contents.ptr, reply_path == null ? 0 : reply_path.ptr);
 826                 GC.KeepAlive(entropy_source);
 827                 GC.KeepAlive(node_signer);
 828                 GC.KeepAlive(node_id_lookup);
 829                 GC.KeepAlive(path);
 830                 GC.KeepAlive(contents);
 831                 GC.KeepAlive(reply_path);
 832                 if (ret >= 0 && ret <= 4096) { return null; }
 833                 Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ ret_hu_conv = Result_C3Tuple_PublicKeyOnionMessageCOption_CVec_SocketAddressZZZSendErrorZ.constr_from_ptr(ret);
 834                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 835                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 836                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_id_lookup); };
 837                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(path); };
 838                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(contents); };
 839                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(reply_path); };
 840                 return ret_hu_conv;
 841         }
 842
 843         /**
 844          * Decode one layer of an incoming [`OnionMessage`].
 845          *
 846          * Returns either the next layer of the onion for forwarding or the decrypted content for the
 847          * receiver.
 848          */
 849         public static Result_PeeledOnionNoneZ peel_onion_message(org.ldk.structs.OnionMessage msg, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, org.ldk.structs.CustomOnionMessageHandler custom_handler) {
 850                 long ret = bindings.peel_onion_message(msg.ptr, node_signer.ptr, logger.ptr, custom_handler.ptr);
 851                 GC.KeepAlive(msg);
 852                 GC.KeepAlive(node_signer);
 853                 GC.KeepAlive(logger);
 854                 GC.KeepAlive(custom_handler);
 855                 if (ret >= 0 && ret <= 4096) { return null; }
 856                 Result_PeeledOnionNoneZ ret_hu_conv = Result_PeeledOnionNoneZ.constr_from_ptr(ret);
 857                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(msg); };
 858                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
 859                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
 860                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(custom_handler); };
 861                 return ret_hu_conv;
 862         }
 863
 864         /**
 865          * Returns whether `tlv_type` corresponds to a TLV record for Offers.
 866          */
 867         public static bool OffersMessage_is_known_type(long tlv_type) {
 868                 bool ret = bindings.OffersMessage_is_known_type(tlv_type);
 869                 GC.KeepAlive(tlv_type);
 870                 return ret;
 871         }
 872
 873         /**
 874          * Create a one-hop blinded path for a payment.
 875          */
 876         public static Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ BlindedPath_one_hop_for_payment(byte[] payee_node_id, org.ldk.structs.ReceiveTlvs payee_tlvs, short min_final_cltv_expiry_delta, org.ldk.structs.EntropySource entropy_source) {
 877                 long ret = bindings.BlindedPath_one_hop_for_payment(InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payee_node_id, 33)), payee_tlvs.ptr, min_final_cltv_expiry_delta, entropy_source.ptr);
 878                 GC.KeepAlive(payee_node_id);
 879                 GC.KeepAlive(payee_tlvs);
 880                 GC.KeepAlive(min_final_cltv_expiry_delta);
 881                 GC.KeepAlive(entropy_source);
 882                 if (ret >= 0 && ret <= 4096) { return null; }
 883                 Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ ret_hu_conv = Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ.constr_from_ptr(ret);
 884                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payee_tlvs); };
 885                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 886                 return ret_hu_conv;
 887         }
 888
 889         /**
 890          * Create a blinded path for a payment, to be forwarded along `intermediate_nodes`.
 891          *
 892          * Errors if:
 893          * a provided node id is invalid
 894          * [`BlindedPayInfo`] calculation results in an integer overflow
 895          * any unknown features are required in the provided [`ForwardTlvs`]
 896          *
 897          * [`ForwardTlvs`]: crate::blinded_path::payment::ForwardTlvs
 898          */
 899         public static Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ BlindedPath_new_for_payment(ForwardNode[] intermediate_nodes, byte[] payee_node_id, org.ldk.structs.ReceiveTlvs payee_tlvs, long htlc_maximum_msat, short min_final_cltv_expiry_delta, org.ldk.structs.EntropySource entropy_source) {
 900                 long ret = bindings.BlindedPath_new_for_payment(InternalUtils.encodeUint64Array(InternalUtils.mapArray(intermediate_nodes, intermediate_nodes_conv_13 => intermediate_nodes_conv_13.ptr)), InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payee_node_id, 33)), payee_tlvs.ptr, htlc_maximum_msat, min_final_cltv_expiry_delta, entropy_source.ptr);
 901                 GC.KeepAlive(intermediate_nodes);
 902                 GC.KeepAlive(payee_node_id);
 903                 GC.KeepAlive(payee_tlvs);
 904                 GC.KeepAlive(htlc_maximum_msat);
 905                 GC.KeepAlive(min_final_cltv_expiry_delta);
 906                 GC.KeepAlive(entropy_source);
 907                 if (ret >= 0 && ret <= 4096) { return null; }
 908                 Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ ret_hu_conv = Result_C2Tuple_BlindedPayInfoBlindedPathZNoneZ.constr_from_ptr(ret);
 909                 foreach (ForwardNode intermediate_nodes_conv_13 in intermediate_nodes) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(intermediate_nodes_conv_13); }; };
 910                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payee_tlvs); };
 911                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
 912                 return ret_hu_conv;
 913         }
 914
 915         /**
 916          * Read a PathFailure from a byte array, created by PathFailure_write
 917          */
 918         public static Result_COption_PathFailureZDecodeErrorZ PathFailure_read(byte[] ser) {
 919                 long ret = bindings.PathFailure_read(InternalUtils.encodeUint8Array(ser));
 920                 GC.KeepAlive(ser);
 921                 if (ret >= 0 && ret <= 4096) { return null; }
 922                 Result_COption_PathFailureZDecodeErrorZ ret_hu_conv = Result_COption_PathFailureZDecodeErrorZ.constr_from_ptr(ret);
 923                 return ret_hu_conv;
 924         }
 925
 926         /**
 927          * Read a ClosureReason from a byte array, created by ClosureReason_write
 928          */
 929         public static Result_COption_ClosureReasonZDecodeErrorZ ClosureReason_read(byte[] ser) {
 930                 long ret = bindings.ClosureReason_read(InternalUtils.encodeUint8Array(ser));
 931                 GC.KeepAlive(ser);
 932                 if (ret >= 0 && ret <= 4096) { return null; }
 933                 Result_COption_ClosureReasonZDecodeErrorZ ret_hu_conv = Result_COption_ClosureReasonZDecodeErrorZ.constr_from_ptr(ret);
 934                 return ret_hu_conv;
 935         }
 936
 937         /**
 938          * Read a HTLCDestination from a byte array, created by HTLCDestination_write
 939          */
 940         public static Result_COption_HTLCDestinationZDecodeErrorZ HTLCDestination_read(byte[] ser) {
 941                 long ret = bindings.HTLCDestination_read(InternalUtils.encodeUint8Array(ser));
 942                 GC.KeepAlive(ser);
 943                 if (ret >= 0 && ret <= 4096) { return null; }
 944                 Result_COption_HTLCDestinationZDecodeErrorZ ret_hu_conv = Result_COption_HTLCDestinationZDecodeErrorZ.constr_from_ptr(ret);
 945                 return ret_hu_conv;
 946         }
 947
 948         /**
 949          * Read a Event from a byte array, created by Event_write
 950          */
 951         public static Result_COption_EventZDecodeErrorZ Event_read(byte[] ser) {
 952                 long ret = bindings.Event_read(InternalUtils.encodeUint8Array(ser));
 953                 GC.KeepAlive(ser);
 954                 if (ret >= 0 && ret <= 4096) { return null; }
 955                 Result_COption_EventZDecodeErrorZ ret_hu_conv = Result_COption_EventZDecodeErrorZ.constr_from_ptr(ret);
 956                 return ret_hu_conv;
 957         }
 958
 959         /**
 960          * Builds the necessary parameters to pay or pre-flight probe the given zero-amount
 961          * [`Bolt11Invoice`] using [`ChannelManager::send_payment`] or
 962          * [`ChannelManager::send_preflight_probes`].
 963          *
 964          * Prior to paying, you must ensure that the [`Bolt11Invoice::payment_hash`] is unique and the
 965          * same [`PaymentHash`] has never been paid before.
 966          *
 967          * Will always succeed unless the invoice has an amount specified, in which case
 968          * [`payment_parameters_from_invoice`] should be used.
 969          *
 970          * [`ChannelManager::send_payment`]: lightning::ln::channelmanager::ChannelManager::send_payment
 971          * [`ChannelManager::send_preflight_probes`]: lightning::ln::channelmanager::ChannelManager::send_preflight_probes
 972          */
 973         public static Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ payment_parameters_from_zero_amount_invoice(org.ldk.structs.Bolt11Invoice invoice, long amount_msat) {
 974                 long ret = bindings.payment_parameters_from_zero_amount_invoice(invoice.ptr, amount_msat);
 975                 GC.KeepAlive(invoice);
 976                 GC.KeepAlive(amount_msat);
 977                 if (ret >= 0 && ret <= 4096) { return null; }
 978                 Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ ret_hu_conv = Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ.constr_from_ptr(ret);
 979                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(invoice); };
 980                 return ret_hu_conv;
 981         }
 982
 983         /**
 984          * Builds the necessary parameters to pay or pre-flight probe the given [`Bolt11Invoice`] using
 985          * [`ChannelManager::send_payment`] or [`ChannelManager::send_preflight_probes`].
 986          *
 987          * Prior to paying, you must ensure that the [`Bolt11Invoice::payment_hash`] is unique and the
 988          * same [`PaymentHash`] has never been paid before.
 989          *
 990          * Will always succeed unless the invoice has no amount specified, in which case
 991          * [`payment_parameters_from_zero_amount_invoice`] should be used.
 992          *
 993          * [`ChannelManager::send_payment`]: lightning::ln::channelmanager::ChannelManager::send_payment
 994          * [`ChannelManager::send_preflight_probes`]: lightning::ln::channelmanager::ChannelManager::send_preflight_probes
 995          */
 996         public static Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ payment_parameters_from_invoice(org.ldk.structs.Bolt11Invoice invoice) {
 997                 long ret = bindings.payment_parameters_from_invoice(invoice.ptr);
 998                 GC.KeepAlive(invoice);
 999                 if (ret >= 0 && ret <= 4096) { return null; }
1000                 Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ ret_hu_conv = Result_C3Tuple_ThirtyTwoBytesRecipientOnionFieldsRouteParametersZNoneZ.constr_from_ptr(ret);
1001                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(invoice); };
1002                 return ret_hu_conv;
1003         }
1004
1005         /**
1006          * Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
1007          * See [`PhantomKeysManager`] for more information on phantom node payments.
1008          *
1009          * `phantom_route_hints` parameter:
1010          * Contains channel info for all nodes participating in the phantom invoice
1011          * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
1012          * participating node
1013          * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
1014          * updated when a channel becomes disabled or closes
1015          * Note that if too many channels are included in [`PhantomRouteHints::channels`], the invoice
1016          * may be too long for QR code scanning. To fix this, `PhantomRouteHints::channels` may be pared
1017          * down
1018          *
1019          * `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
1020          * between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
1021          * If `None` is provided for `payment_hash`, then one will be created.
1022          *
1023          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1024          * in excess of the current time.
1025          *
1026          * `duration_since_epoch` is the current time since epoch in seconds.
1027          *
1028          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
1029          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`] - 3.
1030          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
1031          * confirmations during routing.
1032          *
1033          * Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
1034          * invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
1035          * requirement).
1036          *
1037          * [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
1038          * [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
1039          * [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
1040          * [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
1041          * [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
1042          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
1043          *
1044          * This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1045          * available and the current time is supplied by the caller.
1046          */
1047         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_phantom_invoice(org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Option_ThirtyTwoBytesZ payment_hash, string description, int invoice_expiry_delta_secs, PhantomRouteHints[] phantom_route_hints, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta, long duration_since_epoch) {
1048                 long ret = bindings.create_phantom_invoice(amt_msat.ptr, payment_hash.ptr, InternalUtils.encodeString(description), invoice_expiry_delta_secs, InternalUtils.encodeUint64Array(InternalUtils.mapArray(phantom_route_hints, phantom_route_hints_conv_19 => phantom_route_hints_conv_19.ptr)), entropy_source.ptr, node_signer.ptr, logger.ptr, network, min_final_cltv_expiry_delta.ptr, duration_since_epoch);
1049                 GC.KeepAlive(amt_msat);
1050                 GC.KeepAlive(payment_hash);
1051                 GC.KeepAlive(description);
1052                 GC.KeepAlive(invoice_expiry_delta_secs);
1053                 GC.KeepAlive(phantom_route_hints);
1054                 GC.KeepAlive(entropy_source);
1055                 GC.KeepAlive(node_signer);
1056                 GC.KeepAlive(logger);
1057                 GC.KeepAlive(network);
1058                 GC.KeepAlive(min_final_cltv_expiry_delta);
1059                 GC.KeepAlive(duration_since_epoch);
1060                 if (ret >= 0 && ret <= 4096) { return null; }
1061                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1062                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1063                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payment_hash); };
1064                 foreach (PhantomRouteHints phantom_route_hints_conv_19 in phantom_route_hints) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(phantom_route_hints_conv_19); }; };
1065                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
1066                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1067                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1068                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1069                 return ret_hu_conv;
1070         }
1071
1072         /**
1073          * Utility to create an invoice that can be paid to one of multiple nodes, or a \"phantom invoice.\"
1074          * See [`PhantomKeysManager`] for more information on phantom node payments.
1075          *
1076          * `phantom_route_hints` parameter:
1077          * Contains channel info for all nodes participating in the phantom invoice
1078          * Entries are retrieved from a call to [`ChannelManager::get_phantom_route_hints`] on each
1079          * participating node
1080          * It is fine to cache `phantom_route_hints` and reuse it across invoices, as long as the data is
1081          * updated when a channel becomes disabled or closes
1082          * Note that the route hints generated from `phantom_route_hints` will be limited to a maximum
1083          * of 3 hints to ensure that the invoice can be scanned in a QR code. These hints are selected
1084          * in the order that the nodes in `PhantomRouteHints` are specified, selecting one hint per node
1085          * until the maximum is hit. Callers may provide as many `PhantomRouteHints::channels` as
1086          * desired, but note that some nodes will be trimmed if more than 3 nodes are provided.
1087          *
1088          * `description_hash` is a SHA-256 hash of the description text
1089          *
1090          * `payment_hash` can be specified if you have a specific need for a custom payment hash (see the difference
1091          * between [`ChannelManager::create_inbound_payment`] and [`ChannelManager::create_inbound_payment_for_hash`]).
1092          * If `None` is provided for `payment_hash`, then one will be created.
1093          *
1094          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1095          * in excess of the current time.
1096          *
1097          * `duration_since_epoch` is the current time since epoch in seconds.
1098          *
1099          * Note that the provided `keys_manager`'s `NodeSigner` implementation must support phantom
1100          * invoices in its `sign_invoice` implementation ([`PhantomKeysManager`] satisfies this
1101          * requirement).
1102          *
1103          * [`PhantomKeysManager`]: lightning::sign::PhantomKeysManager
1104          * [`ChannelManager::get_phantom_route_hints`]: lightning::ln::channelmanager::ChannelManager::get_phantom_route_hints
1105          * [`ChannelManager::create_inbound_payment`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment
1106          * [`ChannelManager::create_inbound_payment_for_hash`]: lightning::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
1107          * [`PhantomRouteHints::channels`]: lightning::ln::channelmanager::PhantomRouteHints::channels
1108          *
1109          * This can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1110          * available and the current time is supplied by the caller.
1111          */
1112         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_phantom_invoice_with_description_hash(org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Option_ThirtyTwoBytesZ payment_hash, int invoice_expiry_delta_secs, org.ldk.structs.Sha256 description_hash, PhantomRouteHints[] phantom_route_hints, org.ldk.structs.EntropySource entropy_source, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta, long duration_since_epoch) {
1113                 long ret = bindings.create_phantom_invoice_with_description_hash(amt_msat.ptr, payment_hash.ptr, invoice_expiry_delta_secs, description_hash.ptr, InternalUtils.encodeUint64Array(InternalUtils.mapArray(phantom_route_hints, phantom_route_hints_conv_19 => phantom_route_hints_conv_19.ptr)), entropy_source.ptr, node_signer.ptr, logger.ptr, network, min_final_cltv_expiry_delta.ptr, duration_since_epoch);
1114                 GC.KeepAlive(amt_msat);
1115                 GC.KeepAlive(payment_hash);
1116                 GC.KeepAlive(invoice_expiry_delta_secs);
1117                 GC.KeepAlive(description_hash);
1118                 GC.KeepAlive(phantom_route_hints);
1119                 GC.KeepAlive(entropy_source);
1120                 GC.KeepAlive(node_signer);
1121                 GC.KeepAlive(logger);
1122                 GC.KeepAlive(network);
1123                 GC.KeepAlive(min_final_cltv_expiry_delta);
1124                 GC.KeepAlive(duration_since_epoch);
1125                 if (ret >= 0 && ret <= 4096) { return null; }
1126                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1127                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1128                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(payment_hash); };
1129                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
1130                 foreach (PhantomRouteHints phantom_route_hints_conv_19 in phantom_route_hints) { if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(phantom_route_hints_conv_19); }; };
1131                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(entropy_source); };
1132                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1133                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1134                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1135                 return ret_hu_conv;
1136         }
1137
1138         /**
1139          * Utility to construct an invoice. Generally, unless you want to do something like a custom
1140          * cltv_expiry, this is what you should be using to create an invoice. The reason being, this
1141          * method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
1142          * doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
1143          * that the payment secret is valid when the invoice is paid.
1144          *
1145          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1146          * in excess of the current time.
1147          *
1148          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
1149          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
1150          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
1151          * confirmations during routing.
1152          *
1153          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
1154          */
1155         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, string description, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1156                 long ret = bindings.create_invoice_from_channelmanager(channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, InternalUtils.encodeString(description), invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1157                 GC.KeepAlive(channelmanager);
1158                 GC.KeepAlive(node_signer);
1159                 GC.KeepAlive(logger);
1160                 GC.KeepAlive(network);
1161                 GC.KeepAlive(amt_msat);
1162                 GC.KeepAlive(description);
1163                 GC.KeepAlive(invoice_expiry_delta_secs);
1164                 GC.KeepAlive(min_final_cltv_expiry_delta);
1165                 if (ret >= 0 && ret <= 4096) { return null; }
1166                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1167                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1168                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1169                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1170                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1171                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1172                 return ret_hu_conv;
1173         }
1174
1175         /**
1176          * Utility to construct an invoice. Generally, unless you want to do something like a custom
1177          * cltv_expiry, this is what you should be using to create an invoice. The reason being, this
1178          * method stores the invoice's payment secret and preimage in `ChannelManager`, so (a) the user
1179          * doesn't have to store preimage/payment secret information and (b) `ChannelManager` can verify
1180          * that the payment secret is valid when the invoice is paid.
1181          * Use this variant if you want to pass the `description_hash` to the invoice.
1182          *
1183          * `invoice_expiry_delta_secs` describes the number of seconds that the invoice is valid for
1184          * in excess of the current time.
1185          *
1186          * You can specify a custom `min_final_cltv_expiry_delta`, or let LDK default it to
1187          * [`MIN_FINAL_CLTV_EXPIRY_DELTA`]. The provided expiry must be at least [`MIN_FINAL_CLTV_EXPIRY_DELTA`].
1188          * Note that LDK will add a buffer of 3 blocks to the delta to allow for up to a few new block
1189          * confirmations during routing.
1190          *
1191          * [`MIN_FINAL_CLTV_EXPIRY_DETLA`]: lightning::ln::channelmanager::MIN_FINAL_CLTV_EXPIRY_DELTA
1192          */
1193         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_with_description_hash(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Sha256 description_hash, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1194                 long ret = bindings.create_invoice_from_channelmanager_with_description_hash(channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description_hash.ptr, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1195                 GC.KeepAlive(channelmanager);
1196                 GC.KeepAlive(node_signer);
1197                 GC.KeepAlive(logger);
1198                 GC.KeepAlive(network);
1199                 GC.KeepAlive(amt_msat);
1200                 GC.KeepAlive(description_hash);
1201                 GC.KeepAlive(invoice_expiry_delta_secs);
1202                 GC.KeepAlive(min_final_cltv_expiry_delta);
1203                 if (ret >= 0 && ret <= 4096) { return null; }
1204                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1205                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1206                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1207                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1208                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1209                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
1210                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1211                 return ret_hu_conv;
1212         }
1213
1214         /**
1215          * See [`create_invoice_from_channelmanager_with_description_hash`]
1216          * This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1217          * available and the current time is supplied by the caller.
1218          */
1219         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, org.ldk.structs.Sha256 description_hash, long duration_since_epoch, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1220                 long ret = bindings.create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, description_hash.ptr, duration_since_epoch, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1221                 GC.KeepAlive(channelmanager);
1222                 GC.KeepAlive(node_signer);
1223                 GC.KeepAlive(logger);
1224                 GC.KeepAlive(network);
1225                 GC.KeepAlive(amt_msat);
1226                 GC.KeepAlive(description_hash);
1227                 GC.KeepAlive(duration_since_epoch);
1228                 GC.KeepAlive(invoice_expiry_delta_secs);
1229                 GC.KeepAlive(min_final_cltv_expiry_delta);
1230                 if (ret >= 0 && ret <= 4096) { return null; }
1231                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1232                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1233                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1234                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1235                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1236                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(description_hash); };
1237                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1238                 return ret_hu_conv;
1239         }
1240
1241         /**
1242          * See [`create_invoice_from_channelmanager`]
1243          * This version can be used in a `no_std` environment, where [`std::time::SystemTime`] is not
1244          * available and the current time is supplied by the caller.
1245          */
1246         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_and_duration_since_epoch(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, string description, long duration_since_epoch, int invoice_expiry_delta_secs, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1247                 long ret = bindings.create_invoice_from_channelmanager_and_duration_since_epoch(channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, InternalUtils.encodeString(description), duration_since_epoch, invoice_expiry_delta_secs, min_final_cltv_expiry_delta.ptr);
1248                 GC.KeepAlive(channelmanager);
1249                 GC.KeepAlive(node_signer);
1250                 GC.KeepAlive(logger);
1251                 GC.KeepAlive(network);
1252                 GC.KeepAlive(amt_msat);
1253                 GC.KeepAlive(description);
1254                 GC.KeepAlive(duration_since_epoch);
1255                 GC.KeepAlive(invoice_expiry_delta_secs);
1256                 GC.KeepAlive(min_final_cltv_expiry_delta);
1257                 if (ret >= 0 && ret <= 4096) { return null; }
1258                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1259                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1260                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1261                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1262                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1263                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1264                 return ret_hu_conv;
1265         }
1266
1267         /**
1268          * See [`create_invoice_from_channelmanager_and_duration_since_epoch`]
1269          * This version allows for providing a custom [`PaymentHash`] for the invoice.
1270          * This may be useful if you're building an on-chain swap or involving another protocol where
1271          * the payment hash is also involved outside the scope of lightning.
1272          */
1273         public static Result_Bolt11InvoiceSignOrCreationErrorZ create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash(org.ldk.structs.ChannelManager channelmanager, org.ldk.structs.NodeSigner node_signer, org.ldk.structs.Logger logger, Currency network, org.ldk.structs.Option_u64Z amt_msat, string description, long duration_since_epoch, int invoice_expiry_delta_secs, byte[] payment_hash, org.ldk.structs.Option_u16Z min_final_cltv_expiry_delta) {
1274                 long ret = bindings.create_invoice_from_channelmanager_and_duration_since_epoch_with_payment_hash(channelmanager.ptr, node_signer.ptr, logger.ptr, network, amt_msat.ptr, InternalUtils.encodeString(description), duration_since_epoch, invoice_expiry_delta_secs, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(payment_hash, 32)), min_final_cltv_expiry_delta.ptr);
1275                 GC.KeepAlive(channelmanager);
1276                 GC.KeepAlive(node_signer);
1277                 GC.KeepAlive(logger);
1278                 GC.KeepAlive(network);
1279                 GC.KeepAlive(amt_msat);
1280                 GC.KeepAlive(description);
1281                 GC.KeepAlive(duration_since_epoch);
1282                 GC.KeepAlive(invoice_expiry_delta_secs);
1283                 GC.KeepAlive(payment_hash);
1284                 GC.KeepAlive(min_final_cltv_expiry_delta);
1285                 if (ret >= 0 && ret <= 4096) { return null; }
1286                 Result_Bolt11InvoiceSignOrCreationErrorZ ret_hu_conv = Result_Bolt11InvoiceSignOrCreationErrorZ.constr_from_ptr(ret);
1287                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(channelmanager); };
1288                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(node_signer); };
1289                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(logger); };
1290                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(amt_msat); };
1291                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(min_final_cltv_expiry_delta); };
1292                 return ret_hu_conv;
1293         }
1294
1295 } } } }