Basic TUI to add new service configuration

internal/config/config.go

@@ -16,9 +16,11 @@ Scotty. If not, see <https://www.gnu.org/licenses/>.
 package config
 
 import (
+	"fmt"
 	"os"
 	"path"
 	"path/filepath"
+	"regexp"
 
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -74,6 +76,17 @@ func DatabasePath() string {
 	return filepath.Join(getConfigDir(), path)
 }
 
+func ValidateKey(key string) error {
+	found, err := regexp.MatchString("^[A-Za-z0-9_-]+$", key)
+	if err != nil {
+		return err
+	} else if found {
+		return nil
+	} else {
+		return fmt.Errorf("key must only consist of A-Za-z0-9_-")
+	}
+}
+
 func setDefaults() {
 	viper.SetDefault("database", defaultDatabase)
 	viper.SetDefault("oauth-host", defaultOAuthHost)