fix: issues

internal/client_channel_config.go

@@ -17,6 +17,9 @@ type ChannelConfig struct {
 }
 
 func NewChannelConfig(channelID int64) *ChannelConfig {
+	if channelID == 0 {
+		panic("channel id is required")
+	}
 	return &ChannelConfig{ID: channelID}
 }
 
@@ -53,7 +56,7 @@ func (c *ChannelConfig) file(_ context.Context) (string, error) {
 	// if file not exists then create it
 	if _, err := os.Stat(channelConfigFile); os.IsNotExist(err) {
 		// create config file
-		data, _ := json.Marshal(&ChannelConfig{ID: channelID})
+		data, _ := json.Marshal(c)
 		if err := os.WriteFile(channelConfigFile, data, 0o644); err != nil {
 			return "", errors.Wrap(err, "write channel config")
 		}