staticaddr: open channel manager

Author: hieblmi

staticaddr/address/manager_test.go

@@ -32,6 +32,17 @@ type mockStaticAddressClient struct {
 	mock.Mock
 }
 
+func (m *mockStaticAddressClient) SignOpenChannelPsbt(ctx context.Context,
+	in *swapserverrpc.SignOpenChannelPsbtRequest,
+	opts ...grpc.CallOption) (
+	*swapserverrpc.SignOpenChannelPsbtResponse, error) {
+
+	args := m.Called(ctx, in, opts)
+
+	return args.Get(0).(*swapserverrpc.SignOpenChannelPsbtResponse),
+		args.Error(1)
+}
+
 func (m *mockStaticAddressClient) ServerStaticAddressLoopIn(ctx context.Context,
 	in *swapserverrpc.ServerStaticAddressLoopInRequest,
 	opts ...grpc.CallOption) (

staticaddr/deposit/manager_test.go

@@ -209,6 +209,17 @@ func (m *MockChainNotifier) RegisterSpendNtfn(ctx context.Context,
 		args.Get(1).(chan error), args.Error(2)
 }
 
+func (m *mockStaticAddressClient) SignOpenChannelPsbt(ctx context.Context,
+	in *swapserverrpc.SignOpenChannelPsbtRequest,
+	opts ...grpc.CallOption) (
+	*swapserverrpc.SignOpenChannelPsbtResponse, error) {
+
+	args := m.Called(ctx, in, opts)
+
+	return args.Get(0).(*swapserverrpc.SignOpenChannelPsbtResponse),
+		args.Error(1)
+}
+
 // TestManager checks that the manager processes the right channel notifications
 // while a deposit is expiring.
 func TestManager(t *testing.T) {

staticaddr/log.go

@@ -5,6 +5,7 @@ import (
 	"github.com/lightninglabs/loop/staticaddr/address"
 	"github.com/lightninglabs/loop/staticaddr/deposit"
 	"github.com/lightninglabs/loop/staticaddr/loopin"
+	"github.com/lightninglabs/loop/staticaddr/openchannel"
 	"github.com/lightninglabs/loop/staticaddr/withdraw"
 	"github.com/lightningnetwork/lnd/build"
 )
@@ -29,4 +30,5 @@ func UseLogger(logger btclog.Logger) {
 	deposit.UseLogger(log)
 	withdraw.UseLogger(log)
 	loopin.UseLogger(log)
+	openchannel.UseLogger(log)
 }

staticaddr/openchannel/interface.go

@@ -0,0 +1,48 @@
+package openchannel
+
+import (
+	"context"
+
+	"github.com/btcsuite/btcd/wire"
+	"github.com/lightninglabs/loop/fsm"
+	"github.com/lightninglabs/loop/staticaddr/address"
+	"github.com/lightninglabs/loop/staticaddr/deposit"
+	"github.com/lightninglabs/loop/staticaddr/script"
+	"github.com/lightningnetwork/lnd/lnwallet/chainfee"
+)
+
+// Estimator is an interface that allows us to estimate the fee rate in sat/kw.
+type Estimator interface {
+	// EstimateFeeRate estimates the fee rate in sat/kw for a transaction to
+	// be confirmed in the given number of blocks.
+	EstimateFeeRate(ctx context.Context, target int32) (
+		chainfee.SatPerKWeight, error)
+}
+
+// AddressManager handles fetching of address parameters.
+type AddressManager interface {
+	// GetStaticAddressParameters returns the static address parameters.
+	GetStaticAddressParameters(ctx context.Context) (*address.Parameters,
+		error)
+
+	// GetStaticAddress returns the deposit address for the given
+	// client and server public keys.
+	GetStaticAddress(ctx context.Context) (*script.StaticAddress, error)
+}
+
+type DepositManager interface {
+	// AllOutpointsActiveDeposits returns all deposits that are in the
+	// given state. If the state filter is fsm.StateTypeNone, all deposits
+	// are returned.
+	AllOutpointsActiveDeposits(outpoints []wire.OutPoint,
+		stateFilter fsm.StateType) ([]*deposit.Deposit, bool)
+
+	// GetActiveDepositsInState returns all deposits that are in the
+	// given state.
+	GetActiveDepositsInState(stateFilter fsm.StateType) ([]*deposit.Deposit,
+		error)
+
+	// TransitionDeposits transitions the deposits to the given state.
+	TransitionDeposits(ctx context.Context, deposits []*deposit.Deposit,
+		event fsm.EventType, expectedFinalState fsm.StateType) error
+}

staticaddr/openchannel/log.go

@@ -0,0 +1,24 @@
+package openchannel
+
+import (
+	"github.com/btcsuite/btclog/v2"
+	"github.com/lightningnetwork/lnd/build"
+)
+
+// Subsystem defines the sub system name of this package.
+const Subsystem = "SCHOPEN"
+
+// log is a logger that is initialized with no output filters. This means the
+// package will not perform any logging by default until the caller requests it.
+var log btclog.Logger
+
+// The default amount of logging is none.
+func init() {
+	UseLogger(build.NewSubLogger(Subsystem, nil))
+}
+
+// UseLogger uses a specified Logger to output package logging info. This should
+// be used in preference to SetLogWriter if the caller is also using btclog.
+func UseLogger(logger btclog.Logger) {
+	log = logger
+}