From a9df9c6a2161d27f37019a10864ff81bc41870c9 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Mon, 20 Jul 2026 17:05:36 -0300
Subject: [PATCH] groups: nip29 parenting.

---
 go.mod   |  4 +---
 go.sum   |  6 ++----
 group.go | 31 ++++++++++++++++++++++++++++++-
 3 files changed, 33 insertions(+), 8 deletions(-)

diff --git a/go.mod b/go.mod
index 4bd9bf5..663c6e3 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/fiatjaf/nak
 go 1.25
 
 require (
-	fiatjaf.com/nostr v0.0.0-20260708142249-c591b5592910
+	fiatjaf.com/nostr v0.0.0-20260716191248-c205ed45b97e
 	github.com/AlecAivazis/survey/v2 v2.3.7
 	github.com/bep/debounce v1.2.1
 	github.com/btcsuite/btcd/btcec/v2 v2.3.6
@@ -113,5 +113,3 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	rsc.io/qr v0.2.0 // indirect
 )
-
-replace fiatjaf.com/nostr => ../nostrlib
diff --git a/go.sum b/go.sum
index 0f2954d..2199ef9 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,7 @@
 fiatjaf.com/lib v0.3.7 h1:mXZOn7NrUcjSdy4oNvwQyAmes7Ueb+Zr5hjqMIe2dxI=
 fiatjaf.com/lib v0.3.7/go.mod h1:UlHaZvPHj25PtKLh9GjZkUHRmQ2xZ8Jkoa4VRaLeeQ8=
-fiatjaf.com/nostr v0.0.0-20260625215907-7a78ad0c459f h1:n0G6XmIXS/j+AgDRFiZqK+l1R0ZahlPe/HwHlfxwj/c=
-fiatjaf.com/nostr v0.0.0-20260625215907-7a78ad0c459f/go.mod h1:b1EIUDnd133Ie8Pg8O/biaKdFyCMz28aD4n64g1GqvM=
-fiatjaf.com/nostr v0.0.0-20260708142249-c591b5592910 h1:LplP012gQeGf2hwMcUllEfDrZvyQR6zvrXSNaNVcm20=
-fiatjaf.com/nostr v0.0.0-20260708142249-c591b5592910/go.mod h1:b1EIUDnd133Ie8Pg8O/biaKdFyCMz28aD4n64g1GqvM=
+fiatjaf.com/nostr v0.0.0-20260716191248-c205ed45b97e h1:/vgoytiH4qQ28O/oX1hj656X69CnTy1pGj/17HFjH+A=
+fiatjaf.com/nostr v0.0.0-20260716191248-c205ed45b97e/go.mod h1:b1EIUDnd133Ie8Pg8O/biaKdFyCMz28aD4n64g1GqvM=
 github.com/AlecAivazis/survey/v2 v2.3.7 h1:6I/u8FvytdGsgonrYsVn2t8t4QiRnh6QSTqkkhIiSjQ=
 github.com/AlecAivazis/survey/v2 v2.3.7/go.mod h1:xUTIdE4KCOIjsBAE1JYsUPoCqYdZ1reCfTwbto0Fduo=
 github.com/FastFilter/xorfilter v0.2.1 h1:lbdeLG9BdpquK64ZsleBS8B4xO/QW1IM0gMzF7KaBKc=
diff --git a/group.go b/group.go
index 747ce1f..37ea1a0 100644
--- a/group.go
+++ b/group.go
@@ -29,7 +29,6 @@ var group = &cli.Command{
 	ArgsUsage:                 "<subcommand> <relay>'<identifier> [flags]",
 	Flags:                     combineFlags([][]cli.Flag{}),
 	Before: func(ctx context.Context, c *cli.Command) (context.Context, error) {
-
 		return ctx, nil
 	},
 	Commands: []*cli.Command{
@@ -696,6 +695,18 @@ write your forum post
 					Name:  "all-kinds",
 					Usage: "specify this to delete the supported_kinds property, meaning everything will be supported",
 				},
+				&cli.StringFlag{
+					Name:  "parent",
+					Usage: "set parent group identifier",
+				},
+				&cli.StringFlag{
+					Name:  "children",
+					Usage: "set child group identifiers (semicolon-separated)",
+				},
+				&cli.BoolFlag{
+					Name:  "orphan",
+					Usage: "remove parent tag, making this group an orphan",
+				},
 			},
 			Action: func(ctx context.Context, c *cli.Command) error {
 				relay, identifier, err := parseGroupIdentifier(c)
@@ -760,6 +771,18 @@ write your forum post
 				} else if c.Bool("all-kinds") {
 					group.SupportedKinds = nil
 				}
+				if parent := c.String("parent"); parent != "" {
+					group.Parent = parent
+				}
+				if children := c.String("children"); children != "" {
+					group.Children = strings.Split(children, ";")
+					for i := range group.Children {
+						group.Children[i] = strings.TrimSpace(group.Children[i])
+					}
+				}
+				if c.Bool("orphan") {
+					group.Parent = ""
+				}
 
 				return publishModerationEvent(ctx, c, 9002, func(evt *nostr.Event, args []string) error {
 					evt.Tags = append(evt.Tags, nostr.Tag{"name", group.Name})
@@ -790,6 +813,12 @@ write your forum post
 						}
 						evt.Tags = append(evt.Tags, tag)
 					}
+					if group.Parent != "" {
+						evt.Tags = append(evt.Tags, nostr.Tag{"parent", group.Parent})
+					}
+					for _, child := range group.Children {
+						evt.Tags = append(evt.Tags, nostr.Tag{"child", child})
+					}
 					return nil
 				})
 			},