refactor: unify tags and edges into single rels table

cmd/add.go

@@ -26,18 +26,22 @@ var addCmd = &cobra.Command{
 			Title:   args[0],
 			Content: cContent,
 			DueDate: cDue,
-			Tags:    append([]string{}, cTags...),
 		}
 
-		// Shorthand flags expand to tags or rels.
+		// --tag is an alias for --rel with no target.
+		for _, tag := range cTags {
+			input.Rels = append(input.Rels, service.RelInput{Type: models.RelType(tag), Target: ""})
+		}
+
+		// Shorthand flags expand to property rels or edge rels.
 		if cType != "" {
-			input.Tags = append(input.Tags, "_type::"+cType)
+			input.Rels = append(input.Rels, service.RelInput{Type: models.RelType("_type::" + cType), Target: ""})
 		}
 		if cStatus != "" {
-			input.Tags = append(input.Tags, "_status::"+cStatus)
+			input.Rels = append(input.Rels, service.RelInput{Type: models.RelType("_status::" + cStatus), Target: ""})
 		}
 		if cPrio != "" {
-			input.Tags = append(input.Tags, "_prio::"+cPrio)
+			input.Rels = append(input.Rels, service.RelInput{Type: models.RelType("_prio::" + cPrio), Target: ""})
 		}
 		if cNamespace != "" {
 			input.Rels = append(input.Rels, service.RelInput{Type: models.RelInNamespace, Target: cNamespace})
@@ -75,6 +79,6 @@ func init() {
 	f.StringVar(&cAssignee, "assignee", "", "assignee username or ID")
 	f.StringVar(&cDue, "due", "", "due date")
 	f.StringVar(&cContent, "content", "", "node body")
-	f.StringArrayVar(&cTags, "tag", nil, "custom tags")
-	f.StringArrayVar(&cRels, "rel", nil, "additional relations (type:target)")
+	f.StringArrayVar(&cTags, "tag", nil, "label tag (alias for --rel tagname)")
+	f.StringArrayVar(&cRels, "rel", nil, "relation (prefix::value or relname:target)")
 }

cmd/list.go

@@ -22,19 +22,22 @@ var listCmd = &cobra.Command{
 			return
 		}
 
-		filter := service.ListFilter{
-			Tags: append([]string{}, lTags...),
+		var filter service.ListFilter
+
+		// --tag is an alias for a label filter with no target.
+		for _, tag := range lTags {
+			filter.Rels = append(filter.Rels, service.RelInput{Type: models.RelType(tag), Target: ""})
 		}
 
-		// Shorthand flags expand to tag prefixes or rel filters.
+		// Shorthand flags expand to property filters or edge filters.
 		if lStatus != "" {
-			filter.Tags = append(filter.Tags, "_status::"+lStatus)
+			filter.Rels = append(filter.Rels, service.RelInput{Type: models.RelType("_status::" + lStatus), Target: ""})
 		}
 		if lPrio != "" {
-			filter.Tags = append(filter.Tags, "_prio::"+lPrio)
+			filter.Rels = append(filter.Rels, service.RelInput{Type: models.RelType("_prio::" + lPrio), Target: ""})
 		}
 		if lType != "" {
-			filter.Tags = append(filter.Tags, "_type::"+lType)
+			filter.Rels = append(filter.Rels, service.RelInput{Type: models.RelType("_type::" + lType), Target: ""})
 		}
 		if lNamespace != "" {
 			filter.Rels = append(filter.Rels, service.RelInput{Type: models.RelInNamespace, Target: lNamespace})
@@ -66,8 +69,8 @@ var listCmd = &cobra.Command{
 func init() {
 	rootCmd.AddCommand(listCmd)
 	f := listCmd.Flags()
-	f.StringArrayVar(&lTags, "tag", nil, "filter by tag")
-	f.StringArrayVar(&lRels, "rel", nil, "filter by relation (type:target)")
+	f.StringArrayVar(&lTags, "tag", nil, "filter by label tag")
+	f.StringArrayVar(&lRels, "rel", nil, "filter by relation (prefix::value or relname:target)")
 	f.StringVar(&lStatus, "status", "", "filter by status")
 	f.StringVar(&lPrio, "prio", "", "filter by priority")
 	f.StringVar(&lType, "type", "", "filter by type")

cmd/rel.go

@@ -3,14 +3,24 @@ package cmd
 import (
 	"axolotl/models"
 	"axolotl/service"
-	"fmt"
 	"strings"
 )
 
-// parseRelInput parses a "type:target" string into a RelInput.
+// parseRelInput parses a rel string into a RelInput.
+//
+// Formats:
+//   - "prefix::value"  → property rel with no target (tag)
+//   - "relname:target" → edge rel with a target node
+//   - "tagname"        → simple label rel with no target (alias for --tag)
 func parseRelInput(s string) (service.RelInput, error) {
-	if p := strings.SplitN(s, ":", 2); len(p) == 2 {
-		return service.RelInput{Type: models.RelType(p[0]), Target: p[1]}, nil
+	if strings.Contains(s, "::") {
+		// Property: name::value — no target node.
+		return service.RelInput{Type: models.RelType(s), Target: ""}, nil
 	}
-	return service.RelInput{}, fmt.Errorf("invalid relation format: %s (expected type:target)", s)
+	if idx := strings.Index(s, ":"); idx >= 0 {
+		// Edge rel: relname:target.
+		return service.RelInput{Type: models.RelType(s[:idx]), Target: s[idx+1:]}, nil
+	}
+	// Simple label tag — no target node.
+	return service.RelInput{Type: models.RelType(s), Target: ""}, nil
 }

cmd/update.go

@@ -27,10 +27,7 @@ var updateCmd = &cobra.Command{
 			return
 		}
 
-		input := service.UpdateInput{
-			AddTags:    append([]string{}, uAddTags...),
-			RemoveTags: uRmTags,
-		}
+		var input service.UpdateInput
 
 		if cmd.Flags().Changed("title") {
 			input.Title = &uTitle
@@ -46,15 +43,23 @@ var updateCmd = &cobra.Command{
 			input.DueDate = &empty
 		}
 
-		// Shorthand flags expand to tags or rels.
+		// --tag / --tag-remove are aliases for --rel / --rel-remove with no target.
+		for _, tag := range uAddTags {
+			input.AddRels = append(input.AddRels, service.RelInput{Type: models.RelType(tag), Target: ""})
+		}
+		for _, tag := range uRmTags {
+			input.RemoveRels = append(input.RemoveRels, service.RelInput{Type: models.RelType(tag), Target: ""})
+		}
+
+		// Shorthand flags expand to property rels or edge rels.
 		if cmd.Flags().Changed("type") {
-			input.AddTags = append(input.AddTags, "_type::"+uType)
+			input.AddRels = append(input.AddRels, service.RelInput{Type: models.RelType("_type::" + uType), Target: ""})
 		}
 		if cmd.Flags().Changed("status") {
-			input.AddTags = append(input.AddTags, "_status::"+uStatus)
+			input.AddRels = append(input.AddRels, service.RelInput{Type: models.RelType("_status::" + uStatus), Target: ""})
 		}
 		if cmd.Flags().Changed("prio") {
-			input.AddTags = append(input.AddTags, "_prio::"+uPrio)
+			input.AddRels = append(input.AddRels, service.RelInput{Type: models.RelType("_prio::" + uPrio), Target: ""})
 		}
 		if cmd.Flags().Changed("namespace") {
 			input.AddRels = append(input.AddRels, service.RelInput{Type: models.RelInNamespace, Target: uNamespace})
@@ -101,8 +106,8 @@ func init() {
 	f.StringVar(&uType, "type", "", "node type")
 	f.StringVar(&uNamespace, "namespace", "", "namespace name or ID")
 	f.StringVar(&uAssignee, "assignee", "", "assignee username or ID")
-	f.StringArrayVar(&uAddTags, "tag", nil, "add tags")
-	f.StringArrayVar(&uRmTags, "tag-remove", nil, "remove tags")
-	f.StringArrayVar(&uAddRels, "rel", nil, "add relations (type:target)")
-	f.StringArrayVar(&uRmRels, "rel-remove", nil, "remove relations (type:target)")
+	f.StringArrayVar(&uAddTags, "tag", nil, "add label tag (alias for --rel tagname)")
+	f.StringArrayVar(&uRmTags, "tag-remove", nil, "remove label tag")
+	f.StringArrayVar(&uAddRels, "rel", nil, "add relation (prefix::value or relname:target)")
+	f.StringArrayVar(&uRmRels, "rel-remove", nil, "remove relation (prefix::value or relname:target)")
 }