Rework directory structure

Co-authored-by: Héctor Hurtado <hector.hurtado@bbva.com>

internal/cmd/server.go

@@ -0,0 +1,38 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// ServerCmd is the command line interface for kapow server
+var ServerCmd = &cobra.Command{
+	Use:   "server [optional flags] [optional pow file(s)]",
+	Short: "Start a kapow server",
+	Long: `Start a Kapow server with, by default with client interface, data interface
+	and admin interface`,
+	PreRunE: validateServerCommandArguments,
+	Run: func(cmd *cobra.Command, args []string) {
+		cert, _ := cmd.Flags().GetString("certfile")
+		key, _ := cmd.Flags().GetString("keyfile")
+		fmt.Println("waka server feliz :)", cert, key)
+	},
+}
+
+func init() {
+	ServerCmd.Flags().String("certfile", "", "Cert file to serve thru https")
+	ServerCmd.Flags().String("keyfile", "", "Key file to serve thru https")
+	ServerCmd.Flags().String("bind", "", "IP address and port to listen to")
+	ServerCmd.Flags().BoolP("interactive", "i", false, "Boot an empty kapow server with a shell")
+}
+
+func validateServerCommandArguments(cmd *cobra.Command, args []string) error {
+	cert, _ := cmd.Flags().GetString("certfile")
+	key, _ := cmd.Flags().GetString("keyfile")
+	if (cert == "") != (key == "") {
+		return errors.New("expected both or neither (certfile and keyfile)")
+	}
+	return nil
+}