cleanup: move lightning client to seperate package

lightning/client.go

@@ -0,0 +1,36 @@
+package lightning
+
+import (
+	"github.com/breez/lspd/basetypes"
+	"github.com/btcsuite/btcd/wire"
+)
+
+type GetInfoResult struct {
+	Alias  string
+	Pubkey string
+}
+
+type GetChannelResult struct {
+	InitialChannelID   basetypes.ShortChannelID
+	ConfirmedChannelID basetypes.ShortChannelID
+}
+
+type OpenChannelRequest struct {
+	Destination    []byte
+	CapacitySat    uint64
+	MinHtlcMsat    uint64
+	IsPrivate      bool
+	IsZeroConf     bool
+	MinConfs       *uint32
+	FeeSatPerVByte *float64
+	TargetConf     *uint32
+}
+
+type Client interface {
+	GetInfo() (*GetInfoResult, error)
+	IsConnected(destination []byte) (bool, error)
+	OpenChannel(req *OpenChannelRequest) (*wire.OutPoint, error)
+	GetChannel(peerID []byte, channelPoint wire.OutPoint) (*GetChannelResult, error)
+	GetNodeChannelCount(nodeID []byte) (int, error)
+	GetClosedChannels(nodeID string, channelPoints map[string]uint64) (map[string]uint64, error)
+}