Merge pull request #39 from TheBlueMatt/main
[ldk-java] / src / main / java / org / ldk / structs / Event.java
index abc24cecb67d30afd7de75a275f0ebed81e4fa28..11c852c24dbe46b15afc4ba79aa9d3d8147af0f7 100644 (file)
@@ -4,7 +4,16 @@ import org.ldk.impl.bindings;
 import org.ldk.enums.*;
 import org.ldk.util.*;
 import java.util.Arrays;
+import javax.annotation.Nullable;
 
+
+/**
+ * An Event which you should probably take some action in response to.
+ * 
+ * Note that while Writeable and Readable are implemented for Event, you probably shouldn't use
+ * them directly as they don't round-trip exactly (for example FundingGenerationReady is never
+ * written as it makes no sense to respond to it after reconnecting to peers).
+ */
 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
 public class Event extends CommonBase {
        private Event(Object _dummy, long ptr) { super(ptr); }
@@ -18,9 +27,6 @@ public class Event extends CommonBase {
                if (raw_val.getClass() == bindings.LDKEvent.FundingGenerationReady.class) {
                        return new FundingGenerationReady(ptr, (bindings.LDKEvent.FundingGenerationReady)raw_val);
                }
-               if (raw_val.getClass() == bindings.LDKEvent.FundingBroadcastSafe.class) {
-                       return new FundingBroadcastSafe(ptr, (bindings.LDKEvent.FundingBroadcastSafe)raw_val);
-               }
                if (raw_val.getClass() == bindings.LDKEvent.PaymentReceived.class) {
                        return new PaymentReceived(ptr, (bindings.LDKEvent.PaymentReceived)raw_val);
                }
@@ -36,13 +42,29 @@ public class Event extends CommonBase {
                if (raw_val.getClass() == bindings.LDKEvent.SpendableOutputs.class) {
                        return new SpendableOutputs(ptr, (bindings.LDKEvent.SpendableOutputs)raw_val);
                }
+               if (raw_val.getClass() == bindings.LDKEvent.PaymentForwarded.class) {
+                       return new PaymentForwarded(ptr, (bindings.LDKEvent.PaymentForwarded)raw_val);
+               }
                assert false; return null; // Unreachable without extending the (internal) bindings interface
        }
 
        public final static class FundingGenerationReady extends Event {
+               /**
+                * The random channel_id we picked which you'll need to pass into
+                * ChannelManager::funding_transaction_generated.
+               */
                public final byte[] temporary_channel_id;
+               /**
+                * The value, in satoshis, that the output should have.
+               */
                public final long channel_value_satoshis;
+               /**
+                * The script which should be used in the transaction output.
+               */
                public final byte[] output_script;
+               /**
+                * The value passed in to ChannelManager::create_channel
+               */
                public final long user_channel_id;
                private FundingGenerationReady(long ptr, bindings.LDKEvent.FundingGenerationReady obj) {
                        super(null, ptr);
@@ -52,30 +74,38 @@ public class Event extends CommonBase {
                        this.user_channel_id = obj.user_channel_id;
                }
        }
-       public final static class FundingBroadcastSafe extends Event {
-               public final OutPoint funding_txo;
-               public final long user_channel_id;
-               private FundingBroadcastSafe(long ptr, bindings.LDKEvent.FundingBroadcastSafe obj) {
-                       super(null, ptr);
-                       long funding_txo = obj.funding_txo;
-                       OutPoint funding_txo_hu_conv = new OutPoint(null, funding_txo);
-                       funding_txo_hu_conv.ptrs_to.add(this);
-                       this.funding_txo = funding_txo_hu_conv;
-                       this.user_channel_id = obj.user_channel_id;
-               }
-       }
        public final static class PaymentReceived extends Event {
+               /**
+                * The hash for which the preimage should be handed to the ChannelManager.
+               */
                public final byte[] payment_hash;
-               public final byte[] payment_secret;
+               /**
+                * The value, in thousandths of a satoshi, that this payment is for. Note that you must
+                * compare this to the expected value before accepting the payment (as otherwise you are
+                * providing proof-of-payment for less than the value you expected!).
+               */
                public final long amt;
+               /**
+                * Information for claiming this received payment, based on whether the purpose of the
+                * payment is to pay an invoice or to send a spontaneous payment.
+               */
+               public final PaymentPurpose purpose;
                private PaymentReceived(long ptr, bindings.LDKEvent.PaymentReceived obj) {
                        super(null, ptr);
                        this.payment_hash = obj.payment_hash;
-                       this.payment_secret = obj.payment_secret;
                        this.amt = obj.amt;
+                       long purpose = obj.purpose;
+                       PaymentPurpose purpose_hu_conv = PaymentPurpose.constr_from_ptr(purpose);
+                       purpose_hu_conv.ptrs_to.add(this);
+                       this.purpose = purpose_hu_conv;
                }
        }
        public final static class PaymentSent extends Event {
+               /**
+                * The preimage to the hash given to ChannelManager::send_payment.
+                * Note that this serves as a payment receipt, if you wish to have such a thing, you must
+                * store it somehow!
+               */
                public final byte[] payment_preimage;
                private PaymentSent(long ptr, bindings.LDKEvent.PaymentSent obj) {
                        super(null, ptr);
@@ -83,7 +113,15 @@ public class Event extends CommonBase {
                }
        }
        public final static class PaymentFailed extends Event {
+               /**
+                * The hash which was given to ChannelManager::send_payment.
+               */
                public final byte[] payment_hash;
+               /**
+                * Indicates the payment was rejected for some reason by the recipient. This implies that
+                * the payment has failed, not just the route in question. If this is not set, you may
+                * retry the payment via a different route.
+               */
                public final boolean rejected_by_dest;
                private PaymentFailed(long ptr, bindings.LDKEvent.PaymentFailed obj) {
                        super(null, ptr);
@@ -92,6 +130,12 @@ public class Event extends CommonBase {
                }
        }
        public final static class PendingHTLCsForwardable extends Event {
+               /**
+                * The minimum amount of time that should be waited prior to calling
+                * process_pending_htlc_forwards. To increase the effort required to correlate payments,
+                * you should wait a random amount of time in roughly the range (now + time_forwardable,
+                * now + 5*time_forwardable).
+               */
                public final long time_forwardable;
                private PendingHTLCsForwardable(long ptr, bindings.LDKEvent.PendingHTLCsForwardable obj) {
                        super(null, ptr);
@@ -99,6 +143,9 @@ public class Event extends CommonBase {
                }
        }
        public final static class SpendableOutputs extends Event {
+               /**
+                * The outputs which you should store as spendable by you.
+               */
                public final SpendableOutputDescriptor[] outputs;
                private SpendableOutputs(long ptr, bindings.LDKEvent.SpendableOutputs obj) {
                        super(null, ptr);
@@ -113,4 +160,132 @@ public class Event extends CommonBase {
                        this.outputs = outputs_conv_27_arr;
                }
        }
+       public final static class PaymentForwarded extends Event {
+               /**
+                * The fee, in milli-satoshis, which was earned as a result of the payment.
+                * 
+                * Note that if we force-closed the channel over which we forwarded an HTLC while the HTLC
+                * was pending, the amount the next hop claimed will have been rounded down to the nearest
+                * whole satoshi. Thus, the fee calculated here may be higher than expected as we still
+                * claimed the full value in millisatoshis from the source. In this case,
+                * `claim_from_onchain_tx` will be set.
+                * 
+                * If the channel which sent us the payment has been force-closed, we will claim the funds
+                * via an on-chain transaction. In that case we do not yet know the on-chain transaction
+                * fees which we will spend and will instead set this to `None`. It is possible duplicate
+                * `PaymentForwarded` events are generated for the same payment iff `fee_earned_msat` is
+                * `None`.
+               */
+               public final Option_u64Z fee_earned_msat;
+               /**
+                * If this is `true`, the forwarded HTLC was claimed by our counterparty via an on-chain
+                * transaction.
+               */
+               public final boolean claim_from_onchain_tx;
+               private PaymentForwarded(long ptr, bindings.LDKEvent.PaymentForwarded obj) {
+                       super(null, ptr);
+                       long fee_earned_msat = obj.fee_earned_msat;
+                       Option_u64Z fee_earned_msat_hu_conv = Option_u64Z.constr_from_ptr(fee_earned_msat);
+                       fee_earned_msat_hu_conv.ptrs_to.add(this);
+                       this.fee_earned_msat = fee_earned_msat_hu_conv;
+                       this.claim_from_onchain_tx = obj.claim_from_onchain_tx;
+               }
+       }
+       /**
+        * Creates a copy of the Event
+        */
+       public Event clone() {
+               long ret = bindings.Event_clone(this.ptr);
+               if (ret < 1024) { return null; }
+               Event ret_hu_conv = Event.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(this);
+               return ret_hu_conv;
+       }
+
+       /**
+        * Utility method to constructs a new FundingGenerationReady-variant Event
+        */
+       public static Event funding_generation_ready(byte[] temporary_channel_id, long channel_value_satoshis, byte[] output_script, long user_channel_id) {
+               long ret = bindings.Event_funding_generation_ready(temporary_channel_id, channel_value_satoshis, output_script, user_channel_id);
+               if (ret < 1024) { return null; }
+               Event ret_hu_conv = Event.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(ret_hu_conv);
+               return ret_hu_conv;
+       }
+
+       /**
+        * Utility method to constructs a new PaymentReceived-variant Event
+        */
+       public static Event payment_received(byte[] payment_hash, long amt, PaymentPurpose purpose) {
+               long ret = bindings.Event_payment_received(payment_hash, amt, purpose.ptr);
+               if (ret < 1024) { return null; }
+               Event ret_hu_conv = Event.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(ret_hu_conv);
+               return ret_hu_conv;
+       }
+
+       /**
+        * Utility method to constructs a new PaymentSent-variant Event
+        */
+       public static Event payment_sent(byte[] payment_preimage) {
+               long ret = bindings.Event_payment_sent(payment_preimage);
+               if (ret < 1024) { return null; }
+               Event ret_hu_conv = Event.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(ret_hu_conv);
+               return ret_hu_conv;
+       }
+
+       /**
+        * Utility method to constructs a new PaymentFailed-variant Event
+        */
+       public static Event payment_failed(byte[] payment_hash, boolean rejected_by_dest) {
+               long ret = bindings.Event_payment_failed(payment_hash, rejected_by_dest);
+               if (ret < 1024) { return null; }
+               Event ret_hu_conv = Event.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(ret_hu_conv);
+               return ret_hu_conv;
+       }
+
+       /**
+        * Utility method to constructs a new PendingHTLCsForwardable-variant Event
+        */
+       public static Event pending_htlcs_forwardable(long time_forwardable) {
+               long ret = bindings.Event_pending_htlcs_forwardable(time_forwardable);
+               if (ret < 1024) { return null; }
+               Event ret_hu_conv = Event.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(ret_hu_conv);
+               return ret_hu_conv;
+       }
+
+       /**
+        * Utility method to constructs a new SpendableOutputs-variant Event
+        */
+       public static Event spendable_outputs(SpendableOutputDescriptor[] outputs) {
+               long ret = bindings.Event_spendable_outputs(outputs != null ? Arrays.stream(outputs).mapToLong(outputs_conv_27 -> outputs_conv_27.ptr).toArray() : null);
+               if (ret < 1024) { return null; }
+               Event ret_hu_conv = Event.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(ret_hu_conv);
+               /* TODO 2 SpendableOutputDescriptor  */;
+               return ret_hu_conv;
+       }
+
+       /**
+        * Utility method to constructs a new PaymentForwarded-variant Event
+        */
+       public static Event payment_forwarded(Option_u64Z fee_earned_msat, boolean claim_from_onchain_tx) {
+               long ret = bindings.Event_payment_forwarded(fee_earned_msat.ptr, claim_from_onchain_tx);
+               if (ret < 1024) { return null; }
+               Event ret_hu_conv = Event.constr_from_ptr(ret);
+               ret_hu_conv.ptrs_to.add(ret_hu_conv);
+               return ret_hu_conv;
+       }
+
+       /**
+        * Serialize the Event object into a byte array which can be read by Event_read
+        */
+       public byte[] write() {
+               byte[] ret = bindings.Event_write(this.ptr);
+               return ret;
+       }
+
 }