using org.ldk.impl;
using org.ldk.enums;
using org.ldk.util;
using System;

namespace org { namespace ldk { namespace structs {



/** An implementation of ChannelMessageHandler */
public interface ChannelMessageHandlerInterface {
	/**Handle an incoming `open_channel` message from the given peer.
	 */
	void handle_open_channel(byte[] their_node_id, OpenChannel msg);
	/**Handle an incoming `open_channel2` message from the given peer.
	 */
	void handle_open_channel_v2(byte[] their_node_id, OpenChannelV2 msg);
	/**Handle an incoming `accept_channel` message from the given peer.
	 */
	void handle_accept_channel(byte[] their_node_id, AcceptChannel msg);
	/**Handle an incoming `accept_channel2` message from the given peer.
	 */
	void handle_accept_channel_v2(byte[] their_node_id, AcceptChannelV2 msg);
	/**Handle an incoming `funding_created` message from the given peer.
	 */
	void handle_funding_created(byte[] their_node_id, FundingCreated msg);
	/**Handle an incoming `funding_signed` message from the given peer.
	 */
	void handle_funding_signed(byte[] their_node_id, FundingSigned msg);
	/**Handle an incoming `channel_ready` message from the given peer.
	 */
	void handle_channel_ready(byte[] their_node_id, ChannelReady msg);
	/**Handle an incoming `shutdown` message from the given peer.
	 */
	void handle_shutdown(byte[] their_node_id, Shutdown msg);
	/**Handle an incoming `closing_signed` message from the given peer.
	 */
	void handle_closing_signed(byte[] their_node_id, ClosingSigned msg);
	/**Handle an incoming `tx_add_input message` from the given peer.
	 */
	void handle_tx_add_input(byte[] their_node_id, TxAddInput msg);
	/**Handle an incoming `tx_add_output` message from the given peer.
	 */
	void handle_tx_add_output(byte[] their_node_id, TxAddOutput msg);
	/**Handle an incoming `tx_remove_input` message from the given peer.
	 */
	void handle_tx_remove_input(byte[] their_node_id, TxRemoveInput msg);
	/**Handle an incoming `tx_remove_output` message from the given peer.
	 */
	void handle_tx_remove_output(byte[] their_node_id, TxRemoveOutput msg);
	/**Handle an incoming `tx_complete message` from the given peer.
	 */
	void handle_tx_complete(byte[] their_node_id, TxComplete msg);
	/**Handle an incoming `tx_signatures` message from the given peer.
	 */
	void handle_tx_signatures(byte[] their_node_id, TxSignatures msg);
	/**Handle an incoming `tx_init_rbf` message from the given peer.
	 */
	void handle_tx_init_rbf(byte[] their_node_id, TxInitRbf msg);
	/**Handle an incoming `tx_ack_rbf` message from the given peer.
	 */
	void handle_tx_ack_rbf(byte[] their_node_id, TxAckRbf msg);
	/**Handle an incoming `tx_abort message` from the given peer.
	 */
	void handle_tx_abort(byte[] their_node_id, TxAbort msg);
	/**Handle an incoming `update_add_htlc` message from the given peer.
	 */
	void handle_update_add_htlc(byte[] their_node_id, UpdateAddHTLC msg);
	/**Handle an incoming `update_fulfill_htlc` message from the given peer.
	 */
	void handle_update_fulfill_htlc(byte[] their_node_id, UpdateFulfillHTLC msg);
	/**Handle an incoming `update_fail_htlc` message from the given peer.
	 */
	void handle_update_fail_htlc(byte[] their_node_id, UpdateFailHTLC msg);
	/**Handle an incoming `update_fail_malformed_htlc` message from the given peer.
	 */
	void handle_update_fail_malformed_htlc(byte[] their_node_id, UpdateFailMalformedHTLC msg);
	/**Handle an incoming `commitment_signed` message from the given peer.
	 */
	void handle_commitment_signed(byte[] their_node_id, CommitmentSigned msg);
	/**Handle an incoming `revoke_and_ack` message from the given peer.
	 */
	void handle_revoke_and_ack(byte[] their_node_id, RevokeAndACK msg);
	/**Handle an incoming `update_fee` message from the given peer.
	 */
	void handle_update_fee(byte[] their_node_id, UpdateFee msg);
	/**Handle an incoming `announcement_signatures` message from the given peer.
	 */
	void handle_announcement_signatures(byte[] their_node_id, AnnouncementSignatures msg);
	/**Indicates a connection to the peer failed/an existing connection was lost.
	 */
	void peer_disconnected(byte[] their_node_id);
	/**Handle a peer reconnecting, possibly generating `channel_reestablish` message(s).
	 * 
	 * May return an `Err(())` if the features the peer supports are not sufficient to communicate
	 * with us. Implementors should be somewhat conservative about doing so, however, as other
	 * message handlers may still wish to communicate with this peer.
	 */
	Result_NoneNoneZ peer_connected(byte[] their_node_id, Init msg, bool inbound);
	/**Handle an incoming `channel_reestablish` message from the given peer.
	 */
	void handle_channel_reestablish(byte[] their_node_id, ChannelReestablish msg);
	/**Handle an incoming `channel_update` message from the given peer.
	 */
	void handle_channel_update(byte[] their_node_id, ChannelUpdate msg);
	/**Handle an incoming `error` message from the given peer.
	 */
	void handle_error(byte[] their_node_id, ErrorMessage msg);
	/**Gets the node feature flags which this handler itself supports. All available handlers are
	 * queried similarly and their feature flags are OR'd together to form the [`NodeFeatures`]
	 * which are broadcasted in our [`NodeAnnouncement`] message.
	 */
	NodeFeatures provided_node_features();
	/**Gets the init feature flags which should be sent to the given peer. All available handlers
	 * are queried similarly and their feature flags are OR'd together to form the [`InitFeatures`]
	 * which are sent in our [`Init`] message.
	 * 
	 * Note that this method is called before [`Self::peer_connected`].
	 */
	InitFeatures provided_init_features(byte[] their_node_id);
	/**Gets the chain hashes for this `ChannelMessageHandler` indicating which chains it supports.
	 * 
	 * If it's `None`, then no particular network chain hash compatibility will be enforced when
	 * connecting to peers.
	 */
	Option_CVec_ThirtyTwoBytesZZ get_chain_hashes();
}

/**
 * A trait to describe an object which can receive channel messages.
 * 
 * Messages MAY be called in parallel when they originate from different `their_node_ids`, however
 * they MUST NOT be called in parallel when the two calls have the same `their_node_id`.
 */
public class ChannelMessageHandler : CommonBase {
	internal bindings.LDKChannelMessageHandler bindings_instance;
	internal long instance_idx;

	internal ChannelMessageHandler(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }
	~ChannelMessageHandler() {
		if (ptr != 0) { bindings.ChannelMessageHandler_free(ptr); }
	}

	private class LDKChannelMessageHandlerHolder { internal ChannelMessageHandler held; }
	private class LDKChannelMessageHandlerImpl : bindings.LDKChannelMessageHandler {
		internal LDKChannelMessageHandlerImpl(ChannelMessageHandlerInterface arg, LDKChannelMessageHandlerHolder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }
		private ChannelMessageHandlerInterface arg;
		private LDKChannelMessageHandlerHolder impl_holder;
		public void handle_open_channel(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.OpenChannel _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.OpenChannel(null, _msg); }
			arg.handle_open_channel(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_open_channel_v2(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.OpenChannelV2 _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.OpenChannelV2(null, _msg); }
			arg.handle_open_channel_v2(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_accept_channel(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.AcceptChannel _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.AcceptChannel(null, _msg); }
			arg.handle_accept_channel(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_accept_channel_v2(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.AcceptChannelV2 _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.AcceptChannelV2(null, _msg); }
			arg.handle_accept_channel_v2(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_funding_created(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.FundingCreated _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.FundingCreated(null, _msg); }
			arg.handle_funding_created(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_funding_signed(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.FundingSigned _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.FundingSigned(null, _msg); }
			arg.handle_funding_signed(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_channel_ready(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.ChannelReady _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ChannelReady(null, _msg); }
			arg.handle_channel_ready(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_shutdown(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.Shutdown _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.Shutdown(null, _msg); }
			arg.handle_shutdown(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_closing_signed(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.ClosingSigned _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ClosingSigned(null, _msg); }
			arg.handle_closing_signed(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_add_input(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxAddInput _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxAddInput(null, _msg); }
			arg.handle_tx_add_input(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_add_output(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxAddOutput _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxAddOutput(null, _msg); }
			arg.handle_tx_add_output(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_remove_input(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxRemoveInput _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxRemoveInput(null, _msg); }
			arg.handle_tx_remove_input(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_remove_output(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxRemoveOutput _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxRemoveOutput(null, _msg); }
			arg.handle_tx_remove_output(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_complete(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxComplete _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxComplete(null, _msg); }
			arg.handle_tx_complete(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_signatures(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxSignatures _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxSignatures(null, _msg); }
			arg.handle_tx_signatures(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_init_rbf(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxInitRbf _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxInitRbf(null, _msg); }
			arg.handle_tx_init_rbf(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_ack_rbf(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxAckRbf _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxAckRbf(null, _msg); }
			arg.handle_tx_ack_rbf(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_tx_abort(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.TxAbort _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.TxAbort(null, _msg); }
			arg.handle_tx_abort(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_update_add_htlc(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.UpdateAddHTLC _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.UpdateAddHTLC(null, _msg); }
			arg.handle_update_add_htlc(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_update_fulfill_htlc(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.UpdateFulfillHTLC _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.UpdateFulfillHTLC(null, _msg); }
			arg.handle_update_fulfill_htlc(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_update_fail_htlc(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.UpdateFailHTLC _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.UpdateFailHTLC(null, _msg); }
			arg.handle_update_fail_htlc(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_update_fail_malformed_htlc(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.UpdateFailMalformedHTLC _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.UpdateFailMalformedHTLC(null, _msg); }
			arg.handle_update_fail_malformed_htlc(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_commitment_signed(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.CommitmentSigned _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.CommitmentSigned(null, _msg); }
			arg.handle_commitment_signed(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_revoke_and_ack(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.RevokeAndACK _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.RevokeAndACK(null, _msg); }
			arg.handle_revoke_and_ack(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_update_fee(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.UpdateFee _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.UpdateFee(null, _msg); }
			arg.handle_update_fee(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_announcement_signatures(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.AnnouncementSignatures _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.AnnouncementSignatures(null, _msg); }
			arg.handle_announcement_signatures(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void peer_disconnected(long _their_node_id) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			arg.peer_disconnected(_their_node_id_conv);
				GC.KeepAlive(arg);
		}
		public long peer_connected(long _their_node_id, long _msg, bool _inbound) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.Init _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.Init(null, _msg); }
			Result_NoneNoneZ ret = arg.peer_connected(_their_node_id_conv, _msg_hu_conv, _inbound);
				GC.KeepAlive(arg);
			long result = ret == null ? 0 : ret.clone_ptr();
			return result;
		}
		public void handle_channel_reestablish(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.ChannelReestablish _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ChannelReestablish(null, _msg); }
			arg.handle_channel_reestablish(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_channel_update(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.ChannelUpdate _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ChannelUpdate(null, _msg); }
			arg.handle_channel_update(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public void handle_error(long _their_node_id, long _msg) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			org.ldk.structs.ErrorMessage _msg_hu_conv = null; if (_msg < 0 || _msg > 4096) { _msg_hu_conv = new org.ldk.structs.ErrorMessage(null, _msg); }
			arg.handle_error(_their_node_id_conv, _msg_hu_conv);
				GC.KeepAlive(arg);
		}
		public long provided_node_features() {
			NodeFeatures ret = arg.provided_node_features();
				GC.KeepAlive(arg);
			long result = ret == null ? 0 : ret.clone_ptr();
			return result;
		}
		public long provided_init_features(long _their_node_id) {
			byte[] _their_node_id_conv = InternalUtils.decodeUint8Array(_their_node_id);
			InitFeatures ret = arg.provided_init_features(_their_node_id_conv);
				GC.KeepAlive(arg);
			long result = ret == null ? 0 : ret.clone_ptr();
			return result;
		}
		public long get_chain_hashes() {
			Option_CVec_ThirtyTwoBytesZZ ret = arg.get_chain_hashes();
				GC.KeepAlive(arg);
			long result = ret == null ? 0 : ret.clone_ptr();
			if (impl_holder.held != null) { impl_holder.held.ptrs_to.AddLast(ret); };
			return result;
		}
	}

	/** Creates a new instance of ChannelMessageHandler from a given implementation */
	public static ChannelMessageHandler new_impl(ChannelMessageHandlerInterface arg, MessageSendEventsProviderInterface messageSendEventsProvider_impl) {
		LDKChannelMessageHandlerHolder impl_holder = new LDKChannelMessageHandlerHolder();
		LDKChannelMessageHandlerImpl impl = new LDKChannelMessageHandlerImpl(arg, impl_holder);
		MessageSendEventsProvider messageSendEventsProvider = MessageSendEventsProvider.new_impl(messageSendEventsProvider_impl);
		long[] ptr_idx = bindings.LDKChannelMessageHandler_new(impl, messageSendEventsProvider.instance_idx);

		impl_holder.held = new ChannelMessageHandler(null, ptr_idx[0]);
		impl_holder.held.instance_idx = ptr_idx[1];
		impl_holder.held.bindings_instance = impl;
		impl_holder.held.ptrs_to.AddLast(messageSendEventsProvider);
		return impl_holder.held;
	}

	/**
	 * Handle an incoming `open_channel` message from the given peer.
	 */
	public void handle_open_channel(byte[] their_node_id, org.ldk.structs.OpenChannel msg) {
		bindings.ChannelMessageHandler_handle_open_channel(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `open_channel2` message from the given peer.
	 */
	public void handle_open_channel_v2(byte[] their_node_id, org.ldk.structs.OpenChannelV2 msg) {
		bindings.ChannelMessageHandler_handle_open_channel_v2(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `accept_channel` message from the given peer.
	 */
	public void handle_accept_channel(byte[] their_node_id, org.ldk.structs.AcceptChannel msg) {
		bindings.ChannelMessageHandler_handle_accept_channel(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `accept_channel2` message from the given peer.
	 */
	public void handle_accept_channel_v2(byte[] their_node_id, org.ldk.structs.AcceptChannelV2 msg) {
		bindings.ChannelMessageHandler_handle_accept_channel_v2(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `funding_created` message from the given peer.
	 */
	public void handle_funding_created(byte[] their_node_id, org.ldk.structs.FundingCreated msg) {
		bindings.ChannelMessageHandler_handle_funding_created(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `funding_signed` message from the given peer.
	 */
	public void handle_funding_signed(byte[] their_node_id, org.ldk.structs.FundingSigned msg) {
		bindings.ChannelMessageHandler_handle_funding_signed(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `channel_ready` message from the given peer.
	 */
	public void handle_channel_ready(byte[] their_node_id, org.ldk.structs.ChannelReady msg) {
		bindings.ChannelMessageHandler_handle_channel_ready(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `shutdown` message from the given peer.
	 */
	public void handle_shutdown(byte[] their_node_id, org.ldk.structs.Shutdown msg) {
		bindings.ChannelMessageHandler_handle_shutdown(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `closing_signed` message from the given peer.
	 */
	public void handle_closing_signed(byte[] their_node_id, org.ldk.structs.ClosingSigned msg) {
		bindings.ChannelMessageHandler_handle_closing_signed(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_add_input message` from the given peer.
	 */
	public void handle_tx_add_input(byte[] their_node_id, org.ldk.structs.TxAddInput msg) {
		bindings.ChannelMessageHandler_handle_tx_add_input(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_add_output` message from the given peer.
	 */
	public void handle_tx_add_output(byte[] their_node_id, org.ldk.structs.TxAddOutput msg) {
		bindings.ChannelMessageHandler_handle_tx_add_output(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_remove_input` message from the given peer.
	 */
	public void handle_tx_remove_input(byte[] their_node_id, org.ldk.structs.TxRemoveInput msg) {
		bindings.ChannelMessageHandler_handle_tx_remove_input(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_remove_output` message from the given peer.
	 */
	public void handle_tx_remove_output(byte[] their_node_id, org.ldk.structs.TxRemoveOutput msg) {
		bindings.ChannelMessageHandler_handle_tx_remove_output(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_complete message` from the given peer.
	 */
	public void handle_tx_complete(byte[] their_node_id, org.ldk.structs.TxComplete msg) {
		bindings.ChannelMessageHandler_handle_tx_complete(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_signatures` message from the given peer.
	 */
	public void handle_tx_signatures(byte[] their_node_id, org.ldk.structs.TxSignatures msg) {
		bindings.ChannelMessageHandler_handle_tx_signatures(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_init_rbf` message from the given peer.
	 */
	public void handle_tx_init_rbf(byte[] their_node_id, org.ldk.structs.TxInitRbf msg) {
		bindings.ChannelMessageHandler_handle_tx_init_rbf(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_ack_rbf` message from the given peer.
	 */
	public void handle_tx_ack_rbf(byte[] their_node_id, org.ldk.structs.TxAckRbf msg) {
		bindings.ChannelMessageHandler_handle_tx_ack_rbf(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `tx_abort message` from the given peer.
	 */
	public void handle_tx_abort(byte[] their_node_id, org.ldk.structs.TxAbort msg) {
		bindings.ChannelMessageHandler_handle_tx_abort(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `update_add_htlc` message from the given peer.
	 */
	public void handle_update_add_htlc(byte[] their_node_id, org.ldk.structs.UpdateAddHTLC msg) {
		bindings.ChannelMessageHandler_handle_update_add_htlc(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `update_fulfill_htlc` message from the given peer.
	 */
	public void handle_update_fulfill_htlc(byte[] their_node_id, org.ldk.structs.UpdateFulfillHTLC msg) {
		bindings.ChannelMessageHandler_handle_update_fulfill_htlc(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `update_fail_htlc` message from the given peer.
	 */
	public void handle_update_fail_htlc(byte[] their_node_id, org.ldk.structs.UpdateFailHTLC msg) {
		bindings.ChannelMessageHandler_handle_update_fail_htlc(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `update_fail_malformed_htlc` message from the given peer.
	 */
	public void handle_update_fail_malformed_htlc(byte[] their_node_id, org.ldk.structs.UpdateFailMalformedHTLC msg) {
		bindings.ChannelMessageHandler_handle_update_fail_malformed_htlc(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `commitment_signed` message from the given peer.
	 */
	public void handle_commitment_signed(byte[] their_node_id, org.ldk.structs.CommitmentSigned msg) {
		bindings.ChannelMessageHandler_handle_commitment_signed(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `revoke_and_ack` message from the given peer.
	 */
	public void handle_revoke_and_ack(byte[] their_node_id, org.ldk.structs.RevokeAndACK msg) {
		bindings.ChannelMessageHandler_handle_revoke_and_ack(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `update_fee` message from the given peer.
	 */
	public void handle_update_fee(byte[] their_node_id, org.ldk.structs.UpdateFee msg) {
		bindings.ChannelMessageHandler_handle_update_fee(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `announcement_signatures` message from the given peer.
	 */
	public void handle_announcement_signatures(byte[] their_node_id, org.ldk.structs.AnnouncementSignatures msg) {
		bindings.ChannelMessageHandler_handle_announcement_signatures(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Indicates a connection to the peer failed/an existing connection was lost.
	 */
	public void peer_disconnected(byte[] their_node_id) {
		bindings.ChannelMessageHandler_peer_disconnected(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)));
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
	}

	/**
	 * Handle a peer reconnecting, possibly generating `channel_reestablish` message(s).
	 * 
	 * May return an `Err(())` if the features the peer supports are not sufficient to communicate
	 * with us. Implementors should be somewhat conservative about doing so, however, as other
	 * message handlers may still wish to communicate with this peer.
	 */
	public Result_NoneNoneZ peer_connected(byte[] their_node_id, org.ldk.structs.Init msg, bool inbound) {
		long ret = bindings.ChannelMessageHandler_peer_connected(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr, inbound);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		GC.KeepAlive(inbound);
		if (ret >= 0 && ret <= 4096) { return null; }
		Result_NoneNoneZ ret_hu_conv = Result_NoneNoneZ.constr_from_ptr(ret);
		if (this != null) { this.ptrs_to.AddLast(msg); };
		return ret_hu_conv;
	}

	/**
	 * Handle an incoming `channel_reestablish` message from the given peer.
	 */
	public void handle_channel_reestablish(byte[] their_node_id, org.ldk.structs.ChannelReestablish msg) {
		bindings.ChannelMessageHandler_handle_channel_reestablish(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `channel_update` message from the given peer.
	 */
	public void handle_channel_update(byte[] their_node_id, org.ldk.structs.ChannelUpdate msg) {
		bindings.ChannelMessageHandler_handle_channel_update(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Handle an incoming `error` message from the given peer.
	 */
	public void handle_error(byte[] their_node_id, org.ldk.structs.ErrorMessage msg) {
		bindings.ChannelMessageHandler_handle_error(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)), msg == null ? 0 : msg.ptr);
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		GC.KeepAlive(msg);
		if (this != null) { this.ptrs_to.AddLast(msg); };
	}

	/**
	 * Gets the node feature flags which this handler itself supports. All available handlers are
	 * queried similarly and their feature flags are OR'd together to form the [`NodeFeatures`]
	 * which are broadcasted in our [`NodeAnnouncement`] message.
	 */
	public NodeFeatures provided_node_features() {
		long ret = bindings.ChannelMessageHandler_provided_node_features(this.ptr);
		GC.KeepAlive(this);
		if (ret >= 0 && ret <= 4096) { return null; }
		org.ldk.structs.NodeFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.NodeFeatures(null, ret); }
		if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
		return ret_hu_conv;
	}

	/**
	 * Gets the init feature flags which should be sent to the given peer. All available handlers
	 * are queried similarly and their feature flags are OR'd together to form the [`InitFeatures`]
	 * which are sent in our [`Init`] message.
	 * 
	 * Note that this method is called before [`Self::peer_connected`].
	 */
	public InitFeatures provided_init_features(byte[] their_node_id) {
		long ret = bindings.ChannelMessageHandler_provided_init_features(this.ptr, InternalUtils.encodeUint8Array(InternalUtils.check_arr_len(their_node_id, 33)));
		GC.KeepAlive(this);
		GC.KeepAlive(their_node_id);
		if (ret >= 0 && ret <= 4096) { return null; }
		org.ldk.structs.InitFeatures ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.InitFeatures(null, ret); }
		if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
		return ret_hu_conv;
	}

	/**
	 * Gets the chain hashes for this `ChannelMessageHandler` indicating which chains it supports.
	 * 
	 * If it's `None`, then no particular network chain hash compatibility will be enforced when
	 * connecting to peers.
	 */
	public Option_CVec_ThirtyTwoBytesZZ get_chain_hashes() {
		long ret = bindings.ChannelMessageHandler_get_chain_hashes(this.ptr);
		GC.KeepAlive(this);
		if (ret >= 0 && ret <= 4096) { return null; }
		org.ldk.structs.Option_CVec_ThirtyTwoBytesZZ ret_hu_conv = org.ldk.structs.Option_CVec_ThirtyTwoBytesZZ.constr_from_ptr(ret);
		if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.AddLast(this); };
		return ret_hu_conv;
	}

}
} } }