lnwallet: add skeleton for LightningChannel

* pretty much same as strux/lchannel.go
* Too beefy atm, added note to bring back old CompleteReservation
struct

lnwallet/channel.go

@@ -9,11 +9,7 @@ import (
 	"github.com/btcsuite/btcwallet/walletdb"
 )
 
-type LightningChannel struct {
-	shachan *revocation.HyperShaChain
-	wallet  *LightningWallet
 
-	channelEvents *chainntnfs.ChainNotifier
 // P2SHify...
 func P2SHify(scriptBytes []byte) ([]byte, error) {
 	bldr := txscript.NewScriptBuilder()
@@ -23,19 +19,111 @@ func P2SHify(scriptBytes []byte) ([]byte, error) {
 	return bldr.Script()
 }
 
-	sync.RWMutex
 
+type nodeId [32]byte
+
+type LightningChannel struct {
+	wallet        *LightningWallet
+	channelEvents *chainntnfs.ChainNotifier
+
+	// TODO(roasbeef): Stores all previous R values + timeouts for each
+	// commitment update, plus some other meta-data...Or just use OP_RETURN
+	// to help out?
 	channelNamespace walletdb.Namespace
 
-	// TODO(roasbeef): create and embed 'Service' interface w/ below?
-	started int32
+	Id [32]byte
 
+	capacity        btcutil.Amount
+	ourTotalFunds   btcutil.Amount
+	theirTotalFunds btcutil.Amount
+
+	// TODO(roasbeef): another shachain for R values for HTLC's?
+	// solve above?
+	ourShaChain   *revocation.HyperShaChain
+	theirShaChain *revocation.HyperShaChain
+
+	ourFundingKey   *btcec.PrivateKey
+	theirFundingKey *btcec.PublicKey
+
+	ourCommitKey   *btcec.PublicKey
+	theirCommitKey *btcec.PublicKey
+
+	fundingTx    *wire.MsgTx
+	commitmentTx *wire.MsgTx
+
+	sync.RWMutex
+
+	// TODO(roasbeef): create and embed 'Service' interface w/ below?
+	started  int32
 	shutdown int32
 
 	quit chan struct{}
 	wg   sync.WaitGroup
 }
 
-func newLightningChannel() *LightningChannel {
+// newLightningChannel...
+// TODO(roasbeef): bring back and embedd CompleteReservation struct? kinda large
+// atm.....
+func newLightningChannel(wallet *LightningWallet, events *chainntnfs.ChainNotifier,
+	dbNamespace walletdb.Namespace, theirNodeID nodeId, ourFunds,
+	theirFunds btcutil.Amount, ourChain, theirChain *revocation.HyperShaChain,
+	ourFundingKey *btcec.PrivateKey, theirFundingKey *btcec.PublicKey,
+	commitKey, theirCommitKey *btcec.PublicKey, fundingTx,
+	commitTx *wire.MsgTx) (*LightningChannel, error) {
+
+	return &LightningChannel{
+		wallet:           wallet,
+		channelEvents:    events,
+		channelNamespace: dbNamespace,
+		Id:               theirNodeID,
+		capacity:         ourFunds + theirFunds,
+		ourTotalFunds:    ourFunds,
+		theirTotalFunds:  theirFunds,
+		ourShaChain:      ourChain,
+		theirShaChain:    theirChain,
+		ourFundingKey:    ourFundingKey,
+		theirFundingKey:  theirFundingKey,
+		ourCommitKey:     commitKey,
+		theirCommitKey:   theirCommitKey,
+		fundingTx:        fundingTx,
+		commitmentTx:     commitTx,
+	}, nil
+}
+
+// AddHTLC...
+func (lc *LightningChannel) AddHTLC() {
+}
+
+// SettleHTLC...
+func (lc *LightningChannel) SettleHTLC() {
+}
+
+// OurBalance...
+func (lc *LightningChannel) OurBalance() btcutil.Amount {
+	return 0
+}
+
+// TheirBalance...
+func (lc *LightningChannel) TheirBalance() btcutil.Amount {
+	return 0
+}
+
+// CurrentCommitTx...
+func (lc *LightningChannel) CurrentCommitTx() *btcutil.Tx {
+	return nil
+}
+
+// SignTheirCommitTx...
+func (lc *LightningChannel) SignTheirCommitTx(commitTx *btcutil.Tx) error {
+	return nil
+}
+
+// AddTheirSig...
+func (lc *LightningChannel) AddTheirSig(sig []byte) error {
+	return nil
+}
+
+// VerifyCommitmentUpdate...
+func (lc *LightningChannel) VerifyCommitmentUpdate() error {
 	return nil
 }