refac config

config/config.go

@@ -1,9 +1,12 @@
 package config
 
 import (
+	"fmt"
 	"io/ioutil"
 	"log"
 	"os"
+	"os/user"
+	"path"
 
 	"gopkg.in/yaml.v2"
 )
@@ -18,9 +21,8 @@ type Logger struct {
 }
 
 type Network struct {
-	ID              string `yaml:"id"`
+	Name            string `yaml:"name"`
 	Type            string `yaml:"type"`
-	Status          string `yaml:"status"`
 	Address         string `yaml:"address"`
 	Cert            string `yaml:"cert"`
 	Macaroon        string `yaml:"macaroon"`
@@ -34,6 +36,14 @@ type Network struct {
 func Load(path string) (*Config, error) {
 	c := &Config{}
 
+	if path == "" {
+		dir, err := getAppDir()
+		if err != nil {
+			return nil, err
+		}
+		path = fmt.Sprintf("%s/config.yml", dir)
+	}
+
 	err := loadFromPath(path, c)
 	if err != nil {
 		return nil, err
@@ -67,3 +77,23 @@ func loadFromPath(path string, out interface{}) error {
 
 	return yaml.Unmarshal(data, out)
 }
+
+// getappDir creates if not exists the app directory where the config file
+// as well as the log file will be stored. In case of failure the current dir
+// will be used.
+func getAppDir() (string, error) {
+	usr, _ := user.Current()
+	dir := path.Join(usr.HomeDir, ".lntop")
+	_, err := os.Stat(dir)
+	if err != nil {
+		if os.IsNotExist(err) {
+			oserr := os.Mkdir(dir, 0700)
+			if oserr != nil {
+				return "", oserr
+			}
+		} else {
+			return "", err
+		}
+	}
+	return dir, nil
+}

config/default.go

@@ -0,0 +1,5 @@
+package config
+
+func NewDefault() *Config {
+	return &Config{}
+}

network/backend/lnd/lnd.go

@@ -36,7 +36,7 @@ type Backend struct {
 }
 
 func (l Backend) NodeName() string {
-	return l.cfg.ID
+	return l.cfg.Name
 }
 
 func (l Backend) Info(ctx context.Context) (*models.Info, error) {
@@ -273,7 +273,7 @@ func New(c *config.Network, logger logging.Logger) (*Backend, error) {
 
 	backend := &Backend{
 		cfg:    c,
-		logger: logger.With(logging.String("id", c.ID)),
+		logger: logger.With(logging.String("name", c.Name)),
 	}
 
 	backend.pool, err = pool.New(backend.NewClientConn, c.PoolCapacity, time.Duration(c.ConnTimeout))

network/backend/mock/mock.go

@@ -31,7 +31,7 @@ func (l *Backend) SendPayment(ctx context.Context, payreq *models.PayReq) (*mode
 }
 
 func (b *Backend) NodeName() string {
-	return b.cfg.ID
+	return b.cfg.Name
 }
 
 func (b *Backend) SubscribeInvoice(ctx context.Context, ChannelInvoice chan *models.Invoice) error {