cmd: create ship type

pkg/model/game/game.go

@@ -2,6 +2,7 @@ package game
 
 import (
 	"encoding/json"
+	"strings"
 
 	"github.com/google/uuid"
 	e "github.com/iliadenisov/galaxy/pkg/error"
@@ -111,6 +112,18 @@ func (g Game) relationInternal(hostID, opponentID uuid.UUID) (RaceRelation, erro
 	return RaceRelation{}, e.NewGameStateError("Relation: host %v not found", hostID)
 }
 
+// -----------------------------------------------------------------------------
+
+// validateTypeName always return v without leading and trailing spaces
+func validateTypeName(v string) (string, bool) {
+	s := strings.TrimSpace(v)
+	if len(s) > 0 {
+		return s, true
+	}
+	// TODO: special symbols
+	return s, false
+}
+
 func (g Game) MarshalBinary() (data []byte, err error) {
 	return json.Marshal(&g)
 }