package contractcourt import ( "io" "github.com/btcsuite/btcd/wire" "github.com/lightningnetwork/lnd/channeldb" "github.com/lightningnetwork/lnd/htlcswitch/hop" "github.com/lightningnetwork/lnd/input" "github.com/lightningnetwork/lnd/invoices" "github.com/lightningnetwork/lnd/lntypes" "github.com/lightningnetwork/lnd/lnwire" "github.com/lightningnetwork/lnd/sweep" ) // Registry is an interface which represents the invoice registry. type Registry interface { // LookupInvoice attempts to look up an invoice according to its 32 // byte payment hash. LookupInvoice(lntypes.Hash) (channeldb.Invoice, error) // NotifyExitHopHtlc attempts to mark an invoice as settled. If the // invoice is a debug invoice, then this method is a noop as debug // invoices are never fully settled. The return value describes how the // htlc should be resolved. If the htlc cannot be resolved immediately, // the resolution is sent on the passed in hodlChan later. NotifyExitHopHtlc(payHash lntypes.Hash, paidAmount lnwire.MilliSatoshi, expiry uint32, currentHeight int32, circuitKey channeldb.CircuitKey, hodlChan chan<- interface{}, payload invoices.Payload) (invoices.HtlcResolution, error) // HodlUnsubscribeAll unsubscribes from all htlc resolutions. HodlUnsubscribeAll(subscriber chan<- interface{}) } // OnionProcessor is an interface used to decode onion blobs. type OnionProcessor interface { // ReconstructHopIterator attempts to decode a valid sphinx packet from // the passed io.Reader instance. ReconstructHopIterator(r io.Reader, rHash []byte) (hop.Iterator, error) } // UtxoSweeper defines the sweep functions that contract court requires. type UtxoSweeper interface { // SweepInput sweeps inputs back into the wallet. SweepInput(input input.Input, params sweep.Params) (chan sweep.Result, error) // CreateSweepTx accepts a list of inputs and signs and generates a txn // that spends from them. This method also makes an accurate fee // estimate before generating the required witnesses. CreateSweepTx(inputs []input.Input, feePref sweep.FeePreference, currentBlockHeight uint32) (*wire.MsgTx, error) }