refactor: add tag and relation methods to node to enforce integrity

cmd/rel.go

@@ -2,13 +2,18 @@ package cmd
 
 import (
 	"axolotl/models"
+	"axolotl/service"
 	"fmt"
 	"strings"
 )
 
-func parseRelFlag(s string) (models.RelType, string, error) {
+func parseRelFlag(svc service.NodeService, s string) (*models.Rel, error) {
 	if p := strings.SplitN(s, ":", 2); len(p) == 2 {
-		return models.RelType(p[0]), p[1], nil
+		return &models.Rel{Type: models.RelType(p[0]), Target: p[1]}, nil
 	}
-	return "", "", fmt.Errorf("invalid relation format: %s (expected type:id)", s)
+
+	// name resolution for rels
+	//TODO:
+
+	return &models.Rel{}, fmt.Errorf("invalid relation format: %s (expected type:id)", s)
 }