From 9b08550885ebb8380920ba9d4398495d93b1a9fa Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Fri, 19 Jan 2024 16:13:00 -0300
Subject: [PATCH] some beginnings of nip29 helpers.

---
 nip29.ts     | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 package.json |  7 +++++-
 2 files changed, 66 insertions(+), 1 deletion(-)
 create mode 100644 nip29.ts

diff --git a/nip29.ts b/nip29.ts
new file mode 100644
index 0000000..55ab4e9
--- /dev/null
+++ b/nip29.ts
@@ -0,0 +1,60 @@
+import type { Event } from './pure'
+
+export type Group = {
+  id: string
+  name?: string
+  picture?: string
+  about?: string
+  relay?: string
+  public?: boolean
+  open?: boolean
+}
+
+export function parseGroup(event: Event): Group {
+  const chan: Partial<Group> = {}
+  for (let i = 0; i < event.tags.length; i++) {
+    const tag = event.tags[i]
+    switch (tag[0]) {
+      case 'd':
+        chan.id = tag[1] || ''
+        break
+      case 'name':
+        chan.name = tag[1] || ''
+        break
+      case 'about':
+        chan.about = tag[1] || ''
+        break
+      case 'picture':
+        chan.picture = tag[1] || ''
+        break
+      case 'open':
+        chan.open = true
+        break
+      case 'public':
+        chan.public = true
+        break
+    }
+  }
+  return chan as Group
+}
+
+export type Member = {
+  pubkey: string
+  label?: string
+  permissions: string[]
+}
+
+export function parseMembers(event: Event): Member[] {
+  const members = []
+  for (let i = 0; i < event.tags.length; i++) {
+    const tag = event.tags[i]
+    if (tag.length < 2) continue
+    if (tag[0] !== 'p') continue
+    if (!tag[1].match(/^[0-9a-f]{64}$/)) continue
+    const member: Member = { pubkey: tag[1], permissions: [] }
+    if (tag.length > 2) member.label = tag[2]
+    if (tag.length > 3) member.permissions = tag.slice(3)
+    members.push(member)
+  }
+  return members
+}
diff --git a/package.json b/package.json
index 13be146..7cfb3f1 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "type": "module",
   "name": "nostr-tools",
-  "version": "2.1.3",
+  "version": "2.1.4",
   "description": "Tools for making a Nostr client.",
   "repository": {
     "type": "git",
@@ -130,6 +130,11 @@
       "require": "./lib/cjs/nip28.js",
       "types": "./lib/types/nip28.d.ts"
     },
+    "./nip29": {
+      "import": "./lib/esm/nip29.js",
+      "require": "./lib/cjs/nip29.js",
+      "types": "./lib/types/nip29.d.ts"
+    },
     "./nip30": {
       "import": "./lib/esm/nip30.js",
       "require": "./lib/cjs/nip30.js",