move server to server directory.

server/internal/plugins/chat/config.go

@@ -0,0 +1,23 @@
+package chat
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+type Config struct {
+	Enabled bool
+}
+
+func (Config) Init(cmd *cobra.Command) error {
+	cmd.PersistentFlags().Bool("chat.enabled", true, "whether to enable chat plugin")
+	if err := viper.BindPFlag("chat.enabled", cmd.PersistentFlags().Lookup("chat.enabled")); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (s *Config) Set() {
+	s.Enabled = viper.GetBool("chat.enabled")
+}