multi: restructure invoice Terms field

This commit restructures an invoice's ContractTerms to better encompass
the restrictions placed on settling. For instance, the final ctlv delta
and invoice expiry are moved from the main invoice body (where
additional metadata is stored). Additionally, it moves the State field
outside of the terms since it is rather metadata about the invoice
instead of any terms offered to the sender in the payment request.

channeldb/invoice_test.go

@@ -25,12 +25,12 @@ func randInvoice(value lnwire.MilliSatoshi) (*Invoice, error) {
 		// failures due to the monotonic time component.
 		CreationDate: time.Unix(time.Now().Unix(), 0),
 		Terms: ContractTerm{
+			Expiry:          4000,
 			PaymentPreimage: pre,
 			Value:           value,
 			Features:        emptyFeatures,
 		},
-		Htlcs:  map[CircuitKey]*InvoiceHTLC{},
-		Expiry: 4000,
+		Htlcs: map[CircuitKey]*InvoiceHTLC{},
 	}
 	i.Memo = []byte("memo")
 
@@ -114,7 +114,7 @@ func TestInvoiceWorkflow(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unable to fetch invoice: %v", err)
 	}
-	if dbInvoice2.Terms.State != ContractSettled {
+	if dbInvoice2.State != ContractSettled {
 		t.Fatalf("invoice should now be settled but isn't")
 	}
 	if dbInvoice2.SettleDate.IsZero() {
@@ -363,7 +363,7 @@ func TestDuplicateSettleInvoice(t *testing.T) {
 	// We'll update what we expect the settle invoice to be so that our
 	// comparison below has the correct assumption.
 	invoice.SettleIndex = 1
-	invoice.Terms.State = ContractSettled
+	invoice.State = ContractSettled
 	invoice.AmtPaid = amt
 	invoice.SettleDate = dbInvoice.SettleDate
 	invoice.Htlcs = map[CircuitKey]*InvoiceHTLC{
@@ -679,7 +679,7 @@ func TestQueryInvoices(t *testing.T) {
 // settles the invoice with the given amount.
 func getUpdateInvoice(amt lnwire.MilliSatoshi) InvoiceUpdateCallback {
 	return func(invoice *Invoice) (*InvoiceUpdateDesc, error) {
-		if invoice.Terms.State == ContractSettled {
+		if invoice.State == ContractSettled {
 			return nil, ErrInvoiceAlreadySettled
 		}
 

channeldb/invoices.go

@@ -166,6 +166,13 @@ func (c ContractState) String() string {
 // the necessary conditions required before the invoice can be considered fully
 // settled by the payee.
 type ContractTerm struct {
+	// FinalCltvDelta is the minimum required number of blocks before htlc
+	// expiry when the invoice is accepted.
+	FinalCltvDelta int32
+
+	// Expiry defines how long after creation this invoice should expire.
+	Expiry time.Duration
+
 	// PaymentPreimage is the preimage which is to be revealed in the
 	// occasion that an HTLC paying to the hash of this preimage is
 	// extended.
@@ -175,9 +182,6 @@ type ContractTerm struct {
 	// which can be satisfied by the above preimage.
 	Value lnwire.MilliSatoshi
 
-	// State describes the state the invoice is in.
-	State ContractState
-
 	// PaymentAddr is a randomly generated value include in the MPP record
 	// by the sender to prevent probing of the receiver.
 	PaymentAddr [32]byte
@@ -206,13 +210,6 @@ type Invoice struct {
 	// for this invoice can be stored.
 	PaymentRequest []byte
 
-	// FinalCltvDelta is the minimum required number of blocks before htlc
-	// expiry when the invoice is accepted.
-	FinalCltvDelta int32
-
-	// Expiry defines how long after creation this invoice should expire.
-	Expiry time.Duration
-
 	// CreationDate is the exact time the invoice was created.
 	CreationDate time.Time
 
@@ -245,6 +242,9 @@ type Invoice struct {
 	// NOTE: This index starts at 1.
 	SettleIndex uint64
 
+	// State describes the state the invoice is in.
+	State ContractState
+
 	// AmtPaid is the final amount that we ultimately accepted for pay for
 	// this invoice. We specify this value independently as it's possible
 	// that the invoice originally didn't specify an amount, or the sender
@@ -552,7 +552,7 @@ func (d *DB) FetchAllInvoices(pendingOnly bool) ([]Invoice, error) {
 			}
 
 			if pendingOnly &&
-				invoice.Terms.State == ContractSettled {
+				invoice.State == ContractSettled {
 
 				return nil
 			}
@@ -702,7 +702,7 @@ func (d *DB) QueryInvoices(q InvoiceQuery) (InvoiceSlice, error) {
 			// Skip any settled invoices if the caller is only
 			// interested in unsettled.
 			if q.PendingOnly &&
-				invoice.Terms.State == ContractSettled {
+				invoice.State == ContractSettled {
 
 				continue
 			}
@@ -931,11 +931,11 @@ func serializeInvoice(w io.Writer, i *Invoice) error {
 
 	preimage := [32]byte(i.Terms.PaymentPreimage)
 	value := uint64(i.Terms.Value)
-	cltvDelta := uint32(i.FinalCltvDelta)
-	expiry := uint64(i.Expiry)
+	cltvDelta := uint32(i.Terms.FinalCltvDelta)
+	expiry := uint64(i.Terms.Expiry)
 
 	amtPaid := uint64(i.AmtPaid)
-	state := uint8(i.Terms.State)
+	state := uint8(i.State)
 
 	tlvStream, err := tlv.NewStream(
 		// Memo and payreq.
@@ -1094,10 +1094,10 @@ func deserializeInvoice(r io.Reader) (Invoice, error) {
 
 	i.Terms.PaymentPreimage = lntypes.Preimage(preimage)
 	i.Terms.Value = lnwire.MilliSatoshi(value)
-	i.FinalCltvDelta = int32(cltvDelta)
-	i.Expiry = time.Duration(expiry)
+	i.Terms.FinalCltvDelta = int32(cltvDelta)
+	i.Terms.Expiry = time.Duration(expiry)
 	i.AmtPaid = lnwire.MilliSatoshi(amtPaid)
-	i.Terms.State = ContractState(state)
+	i.State = ContractState(state)
 
 	err = i.CreationDate.UnmarshalBinary(creationDateBytes)
 	if err != nil {
@@ -1198,13 +1198,12 @@ func copyInvoice(src *Invoice) *Invoice {
 	dest := Invoice{
 		Memo:           copySlice(src.Memo),
 		PaymentRequest: copySlice(src.PaymentRequest),
-		FinalCltvDelta: src.FinalCltvDelta,
-		Expiry:         src.Expiry,
 		CreationDate:   src.CreationDate,
 		SettleDate:     src.SettleDate,
 		Terms:          src.Terms,
 		AddIndex:       src.AddIndex,
 		SettleIndex:    src.SettleIndex,
+		State:          src.State,
 		AmtPaid:        src.AmtPaid,
 		Htlcs: make(
 			map[CircuitKey]*InvoiceHTLC, len(src.Htlcs),
@@ -1230,7 +1229,7 @@ func (d *DB) updateInvoice(hash lntypes.Hash, invoices, settleIndex *bbolt.Bucke
 		return nil, err
 	}
 
-	preUpdateState := invoice.Terms.State
+	preUpdateState := invoice.State
 
 	// Create deep copy to prevent any accidental modification in the
 	// callback.
@@ -1243,7 +1242,7 @@ func (d *DB) updateInvoice(hash lntypes.Hash, invoices, settleIndex *bbolt.Bucke
 	}
 
 	// Update invoice state.
-	invoice.Terms.State = update.State
+	invoice.State = update.State
 
 	now := d.now()
 
@@ -1291,8 +1290,8 @@ func (d *DB) updateInvoice(hash lntypes.Hash, invoices, settleIndex *bbolt.Bucke
 
 	// If invoice moved to the settled state, update settle index and settle
 	// time.
-	if preUpdateState != invoice.Terms.State &&
-		invoice.Terms.State == ContractSettled {
+	if preUpdateState != invoice.State &&
+		invoice.State == ContractSettled {
 
 		if update.Preimage.Hash() != hash {
 			return nil, fmt.Errorf("preimage does not match")
@@ -1344,7 +1343,7 @@ func setSettleFields(settleIndex *bbolt.Bucket, invoiceNum []byte,
 		return err
 	}
 
-	invoice.Terms.State = ContractSettled
+	invoice.State = ContractSettled
 	invoice.SettleDate = now
 	invoice.SettleIndex = nextSettleSeqNo
 

htlcswitch/link_test.go

@@ -245,7 +245,7 @@ func TestChannelLinkSingleHopPayment(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unable to get invoice: %v", err)
 	}
-	if invoice.Terms.State != channeldb.ContractSettled {
+	if invoice.State != channeldb.ContractSettled {
 		t.Fatal("alice invoice wasn't settled")
 	}
 
@@ -505,7 +505,7 @@ func testChannelLinkMultiHopPayment(t *testing.T,
 	if err != nil {
 		t.Fatalf("unable to get invoice: %v", err)
 	}
-	if invoice.Terms.State != channeldb.ContractSettled {
+	if invoice.State != channeldb.ContractSettled {
 		t.Fatal("carol invoice haven't been settled")
 	}
 
@@ -919,7 +919,7 @@ func TestUpdateForwardingPolicy(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unable to get invoice: %v", err)
 	}
-	if invoice.Terms.State != channeldb.ContractSettled {
+	if invoice.State != channeldb.ContractSettled {
 		t.Fatal("carol invoice haven't been settled")
 	}
 
@@ -1078,7 +1078,7 @@ func TestChannelLinkMultiHopInsufficientPayment(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unable to get invoice: %v", err)
 	}
-	if invoice.Terms.State == channeldb.ContractSettled {
+	if invoice.State == channeldb.ContractSettled {
 		t.Fatal("carol invoice have been settled")
 	}
 
@@ -1269,7 +1269,7 @@ func TestChannelLinkMultiHopUnknownNextHop(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unable to get invoice: %v", err)
 	}
-	if invoice.Terms.State == channeldb.ContractSettled {
+	if invoice.State == channeldb.ContractSettled {
 		t.Fatal("carol invoice have been settled")
 	}
 
@@ -1384,7 +1384,7 @@ func TestChannelLinkMultiHopDecodeError(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unable to get invoice: %v", err)
 	}
-	if invoice.Terms.State == channeldb.ContractSettled {
+	if invoice.State == channeldb.ContractSettled {
 		t.Fatal("carol invoice have been settled")
 	}
 
@@ -3518,7 +3518,7 @@ func TestChannelRetransmission(t *testing.T) {
 				err = errors.Errorf("unable to get invoice: %v", err)
 				continue
 			}
-			if invoice.Terms.State != channeldb.ContractSettled {
+			if invoice.State != channeldb.ContractSettled {
 				err = errors.Errorf("alice invoice haven't been settled")
 				continue
 			}
@@ -4055,7 +4055,7 @@ func TestChannelLinkAcceptOverpay(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unable to get invoice: %v", err)
 	}
-	if invoice.Terms.State != channeldb.ContractSettled {
+	if invoice.State != channeldb.ContractSettled {
 		t.Fatal("carol invoice haven't been settled")
 	}
 

htlcswitch/test_utils.go

@@ -560,13 +560,13 @@ func generatePaymentWithPreimage(invoiceAmt, htlcAmt lnwire.MilliSatoshi,
 	invoice := &channeldb.Invoice{
 		CreationDate: time.Now(),
 		Terms: channeldb.ContractTerm{
+			FinalCltvDelta:  testInvoiceCltvExpiry,
 			Value:           invoiceAmt,
 			PaymentPreimage: preimage,
 			Features: lnwire.NewFeatureVector(
 				nil, lnwire.Features,
 			),
 		},
-		FinalCltvDelta: testInvoiceCltvExpiry,
 	}
 
 	htlc := &lnwire.UpdateAddHTLC{

invoices/invoiceregistry.go

@@ -179,7 +179,7 @@ func (i *InvoiceRegistry) invoiceEventNotifier() {
 				// For backwards compatibility, do not notify
 				// all invoice subscribers of cancel and accept
 				// events.
-				state := e.invoice.Terms.State
+				state := e.invoice.State
 				if state != channeldb.ContractCanceled &&
 					state != channeldb.ContractAccepted {
 
@@ -231,7 +231,7 @@ func (i *InvoiceRegistry) dispatchToClients(event *invoiceEvent) {
 		// ensure we don't duplicate any events.
 
 		// TODO(joostjager): Refactor switches.
-		state := event.invoice.Terms.State
+		state := event.invoice.State
 		switch {
 		// If we've already sent this settle event to
 		// the client, then we can skip this.
@@ -277,14 +277,14 @@ func (i *InvoiceRegistry) dispatchToClients(event *invoiceEvent) {
 		// the latest add/settle index it has. We'll use this to ensure
 		// we don't send a notification twice, which can happen if a new
 		// event is added while we're catching up a new client.
-		switch event.invoice.Terms.State {
+		switch event.invoice.State {
 		case channeldb.ContractSettled:
 			client.settleIndex = invoice.SettleIndex
 		case channeldb.ContractOpen:
 			client.addIndex = invoice.AddIndex
 		default:
 			log.Errorf("unexpected invoice state: %v",
-				event.invoice.Terms.State)
+				event.invoice.State)
 		}
 	}
 }
@@ -467,7 +467,7 @@ func (i *InvoiceRegistry) NotifyExitHopHtlc(rHash lntypes.Hash,
 
 		// If the invoice is already canceled, there is no further
 		// checking to do.
-		if inv.Terms.State == channeldb.ContractCanceled {
+		if inv.State == channeldb.ContractCanceled {
 			debugLog("invoice already canceled")
 			return nil, errNoUpdate
 		}
@@ -486,7 +486,7 @@ func (i *InvoiceRegistry) NotifyExitHopHtlc(rHash lntypes.Hash,
 			return nil, errNoUpdate
 		}
 
-		if expiry < uint32(currentHeight+inv.FinalCltvDelta) {
+		if expiry < uint32(currentHeight+inv.Terms.FinalCltvDelta) {
 			debugLog("expiry too soon")
 			return nil, errNoUpdate
 		}
@@ -506,7 +506,7 @@ func (i *InvoiceRegistry) NotifyExitHopHtlc(rHash lntypes.Hash,
 
 		// Don't update invoice state if we are accepting a duplicate
 		// payment. We do accept or settle the HTLC.
-		switch inv.Terms.State {
+		switch inv.State {
 		case channeldb.ContractAccepted:
 			debugLog("accepting duplicate payment to accepted invoice")
 			update.State = channeldb.ContractAccepted
@@ -546,7 +546,7 @@ func (i *InvoiceRegistry) NotifyExitHopHtlc(rHash lntypes.Hash,
 	}
 
 	if updateSubscribers {
-		i.notifyClients(rHash, invoice, invoice.Terms.State)
+		i.notifyClients(rHash, invoice, invoice.State)
 	}
 
 	// Inspect latest htlc state on the invoice.
@@ -597,7 +597,7 @@ func (i *InvoiceRegistry) SettleHodlInvoice(preimage lntypes.Preimage) error {
 	updateInvoice := func(invoice *channeldb.Invoice) (
 		*channeldb.InvoiceUpdateDesc, error) {
 
-		switch invoice.Terms.State {
+		switch invoice.State {
 		case channeldb.ContractOpen:
 			return nil, channeldb.ErrInvoiceStillOpen
 		case channeldb.ContractCanceled:
@@ -639,7 +639,7 @@ func (i *InvoiceRegistry) SettleHodlInvoice(preimage lntypes.Preimage) error {
 			AcceptHeight: int32(htlc.AcceptHeight),
 		})
 	}
-	i.notifyClients(hash, invoice, invoice.Terms.State)
+	i.notifyClients(hash, invoice, invoice.State)
 
 	return nil
 }
@@ -655,7 +655,7 @@ func (i *InvoiceRegistry) CancelInvoice(payHash lntypes.Hash) error {
 	updateInvoice := func(invoice *channeldb.Invoice) (
 		*channeldb.InvoiceUpdateDesc, error) {
 
-		switch invoice.Terms.State {
+		switch invoice.State {
 		case channeldb.ContractSettled:
 			return nil, channeldb.ErrInvoiceAlreadySettled
 		case channeldb.ContractCanceled:
@@ -868,7 +868,7 @@ func (i *InvoiceRegistry) SubscribeNotifications(addIndex, settleIndex uint64) *
 				invoiceEvent := ntfn.(*invoiceEvent)
 
 				var targetChan chan *channeldb.Invoice
-				state := invoiceEvent.invoice.Terms.State
+				state := invoiceEvent.invoice.State
 				switch state {
 				case channeldb.ContractOpen:
 					targetChan = client.NewInvoices

invoices/invoiceregistry_test.go

@@ -115,9 +115,9 @@ func TestSettleInvoice(t *testing.T) {
 	// We expect the open state to be sent to the single invoice subscriber.
 	select {
 	case update := <-subscription.Updates:
-		if update.Terms.State != channeldb.ContractOpen {
+		if update.State != channeldb.ContractOpen {
 			t.Fatalf("expected state ContractOpen, but got %v",
-				update.Terms.State)
+				update.State)
 		}
 	case <-time.After(testTimeout):
 		t.Fatal("no update received")
@@ -126,9 +126,9 @@ func TestSettleInvoice(t *testing.T) {
 	// We expect a new invoice notification to be sent out.
 	select {
 	case newInvoice := <-allSubscriptions.NewInvoices:
-		if newInvoice.Terms.State != channeldb.ContractOpen {
+		if newInvoice.State != channeldb.ContractOpen {
 			t.Fatalf("expected state ContractOpen, but got %v",
-				newInvoice.Terms.State)
+				newInvoice.State)
 		}
 	case <-time.After(testTimeout):
 		t.Fatal("no update received")
@@ -167,9 +167,9 @@ func TestSettleInvoice(t *testing.T) {
 	// subscriber.
 	select {
 	case update := <-subscription.Updates:
-		if update.Terms.State != channeldb.ContractSettled {
+		if update.State != channeldb.ContractSettled {
 			t.Fatalf("expected state ContractOpen, but got %v",
-				update.Terms.State)
+				update.State)
 		}
 		if update.AmtPaid != amtPaid {
 			t.Fatal("invoice AmtPaid incorrect")
@@ -181,9 +181,9 @@ func TestSettleInvoice(t *testing.T) {
 	// We expect a settled notification to be sent out.
 	select {
 	case settledInvoice := <-allSubscriptions.SettledInvoices:
-		if settledInvoice.Terms.State != channeldb.ContractSettled {
+		if settledInvoice.State != channeldb.ContractSettled {
 			t.Fatalf("expected state ContractOpen, but got %v",
-				settledInvoice.Terms.State)
+				settledInvoice.State)
 		}
 	case <-time.After(testTimeout):
 		t.Fatal("no update received")
@@ -288,10 +288,10 @@ func TestCancelInvoice(t *testing.T) {
 	// We expect the open state to be sent to the single invoice subscriber.
 	select {
 	case update := <-subscription.Updates:
-		if update.Terms.State != channeldb.ContractOpen {
+		if update.State != channeldb.ContractOpen {
 			t.Fatalf(
 				"expected state ContractOpen, but got %v",
-				update.Terms.State,
+				update.State,
 			)
 		}
 	case <-time.After(testTimeout):
@@ -301,10 +301,10 @@ func TestCancelInvoice(t *testing.T) {
 	// We expect a new invoice notification to be sent out.
 	select {
 	case newInvoice := <-allSubscriptions.NewInvoices:
-		if newInvoice.Terms.State != channeldb.ContractOpen {
+		if newInvoice.State != channeldb.ContractOpen {
 			t.Fatalf(
 				"expected state ContractOpen, but got %v",
-				newInvoice.Terms.State,
+				newInvoice.State,
 			)
 		}
 	case <-time.After(testTimeout):
@@ -321,10 +321,10 @@ func TestCancelInvoice(t *testing.T) {
 	// subscriber.
 	select {
 	case update := <-subscription.Updates:
-		if update.Terms.State != channeldb.ContractCanceled {
+		if update.State != channeldb.ContractCanceled {
 			t.Fatalf(
 				"expected state ContractCanceled, but got %v",
-				update.Terms.State,
+				update.State,
 			)
 		}
 	case <-time.After(testTimeout):
@@ -402,16 +402,16 @@ func TestSettleHoldInvoice(t *testing.T) {
 
 	// We expect the open state to be sent to the single invoice subscriber.
 	update := <-subscription.Updates
-	if update.Terms.State != channeldb.ContractOpen {
+	if update.State != channeldb.ContractOpen {
 		t.Fatalf("expected state ContractOpen, but got %v",
-			update.Terms.State)
+			update.State)
 	}
 
 	// We expect a new invoice notification to be sent out.
 	newInvoice := <-allSubscriptions.NewInvoices
-	if newInvoice.Terms.State != channeldb.ContractOpen {
+	if newInvoice.State != channeldb.ContractOpen {
 		t.Fatalf("expected state ContractOpen, but got %v",
-			newInvoice.Terms.State)
+			newInvoice.State)
 	}
 
 	// Use slightly higher amount for accept/settle.
@@ -474,9 +474,9 @@ func TestSettleHoldInvoice(t *testing.T) {
 	// subscriber. For all invoice subscribers, we don't expect an update.
 	// Those only get notified on settle.
 	update = <-subscription.Updates
-	if update.Terms.State != channeldb.ContractAccepted {
+	if update.State != channeldb.ContractAccepted {
 		t.Fatalf("expected state ContractAccepted, but got %v",
-			update.Terms.State)
+			update.State)
 	}
 	if update.AmtPaid != amtPaid {
 		t.Fatal("invoice AmtPaid incorrect")
@@ -500,9 +500,9 @@ func TestSettleHoldInvoice(t *testing.T) {
 	// We expect a settled notification to be sent out for both all and
 	// single invoice subscribers.
 	settledInvoice := <-allSubscriptions.SettledInvoices
-	if settledInvoice.Terms.State != channeldb.ContractSettled {
+	if settledInvoice.State != channeldb.ContractSettled {
 		t.Fatalf("expected state ContractSettled, but got %v",
-			settledInvoice.Terms.State)
+			settledInvoice.State)
 	}
 	if settledInvoice.AmtPaid != amtPaid {
 		t.Fatalf("expected amount to be %v, but got %v",
@@ -510,9 +510,9 @@ func TestSettleHoldInvoice(t *testing.T) {
 	}
 
 	update = <-subscription.Updates
-	if update.Terms.State != channeldb.ContractSettled {
+	if update.State != channeldb.ContractSettled {
 		t.Fatalf("expected state ContractSettled, but got %v",
-			update.Terms.State)
+			update.State)
 	}
 
 	// Idempotency.

lnrpc/invoicesrpc/addinvoice.go

@@ -392,9 +392,9 @@ func AddInvoice(ctx context.Context, cfg *AddInvoiceConfig,
 		CreationDate:   creationDate,
 		Memo:           []byte(invoice.Memo),
 		PaymentRequest: []byte(payReqString),
-		FinalCltvDelta: int32(payReq.MinFinalCLTVExpiry()),
-		Expiry:         payReq.Expiry(),
 		Terms: channeldb.ContractTerm{
+			FinalCltvDelta:  int32(payReq.MinFinalCLTVExpiry()),
+			Expiry:          payReq.Expiry(),
 			Value:           amtMSat,
 			PaymentPreimage: paymentPreimage,
 			Features:        invoiceFeatures,

lnrpc/invoicesrpc/utils.go

@@ -43,10 +43,10 @@ func CreateRPCInvoice(invoice *channeldb.Invoice,
 	satAmt := invoice.Terms.Value.ToSatoshis()
 	satAmtPaid := invoice.AmtPaid.ToSatoshis()
 
-	isSettled := invoice.Terms.State == channeldb.ContractSettled
+	isSettled := invoice.State == channeldb.ContractSettled
 
 	var state lnrpc.Invoice_InvoiceState
-	switch invoice.Terms.State {
+	switch invoice.State {
 	case channeldb.ContractOpen:
 		state = lnrpc.Invoice_OPEN
 	case channeldb.ContractSettled:
@@ -57,7 +57,7 @@ func CreateRPCInvoice(invoice *channeldb.Invoice,
 		state = lnrpc.Invoice_ACCEPTED
 	default:
 		return nil, fmt.Errorf("unknown invoice state %v",
-			invoice.Terms.State)
+			invoice.State)
 	}
 
 	rpcHtlcs := make([]*lnrpc.InvoiceHTLC, 0, len(invoice.Htlcs))
@@ -102,8 +102,8 @@ func CreateRPCInvoice(invoice *channeldb.Invoice,
 		Settled:         isSettled,
 		PaymentRequest:  paymentRequest,
 		DescriptionHash: descHash,
-		Expiry:          int64(invoice.Expiry.Seconds()),
-		CltvExpiry:      uint64(invoice.FinalCltvDelta),
+		Expiry:          int64(invoice.Terms.Expiry.Seconds()),
+		CltvExpiry:      uint64(invoice.Terms.FinalCltvDelta),
 		FallbackAddr:    fallbackAddr,
 		RouteHints:      routeHints,
 		AddIndex:        invoice.AddIndex,