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

cmd/list.go

@@ -9,9 +9,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var lAssignee string
-var lTags []string
-var lMention string
+var lTags, lRels []string
 
 var listCmd = &cobra.Command{
 	Use: "list", Short: "List nodes",
@@ -21,15 +19,19 @@ var listCmd = &cobra.Command{
 			fmt.Fprintln(os.Stderr, err)
 			return
 		}
+
 		opts := []service.ListOption{}
 		if len(lTags) > 0 {
 			opts = append(opts, service.WithTags(lTags...))
 		}
-		if lAssignee != "" {
-			opts = append(opts, service.WithAssignee(lAssignee))
-		}
-		if lMention != "" {
-			opts = append(opts, service.WithMentions(lMention))
+
+		for _, relStr := range lRels {
+			rel, err := parseRelFlag(svc, relStr)
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "failed to parse relation flag: %v", err)
+				return
+			}
+			opts = append(opts, service.WithRels(rel))
 		}
 
 		if nodes, err := svc.List(opts...); err == nil {
@@ -44,7 +46,7 @@ func init() {
 	rootCmd.AddCommand(listCmd)
 	addPropertyFlags(listCmd)
 	f := listCmd.Flags()
-	f.StringVar(&lAssignee, "assignee", "", "")
+	//TODO: assignee/ mention flags?
 	f.StringArrayVar(&lTags, "tag", nil, "")
-	f.StringVar(&lMention, "mention", "", "")
+	f.StringArrayVar(&lRels, "rel", nil, "")
 }