From b1152cc919aa879c10ef176923d6dd5166bdcf17 Mon Sep 17 00:00:00 2001
From: Data <data.bot@coasys.org>
Date: Sun, 22 Mar 2026 21:20:18 +0100
Subject: [PATCH] feat(editor): add @everyone mention support

Adds ad4m://everyone as a protocol-level group mention:
- Autocomplete shows 'everyone' option when typing @e...
- Uses ad4m://everyone URI (protocol-level, not app-specific)
- renderLabel correctly prefixes @ for ad4m:// URIs

Companion to coasys/ad4m#769
Closes #571
---
 packages/flux-editor/src/flux-editor.ts | 12 +++++++++---
 packages/flux-editor/src/mention.ts     |  2 +-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/packages/flux-editor/src/flux-editor.ts b/packages/flux-editor/src/flux-editor.ts
index 51d530566..20bf779b0 100644
--- a/packages/flux-editor/src/flux-editor.ts
+++ b/packages/flux-editor/src/flux-editor.ts
@@ -300,10 +300,16 @@ export default class MyElement extends LitElement {
   }
 
   async getMentionSuggestions(query: string) {
-    const matches = this.members
+    // Protocol-level group mentions
+    const groupMentions: Suggestion[] = [
+      { id: 'ad4m://everyone', label: 'everyone' },
+    ].filter((m) => m.label.toLowerCase().startsWith(query.toLowerCase()));
+
+    const memberMatches = this.members
       .filter((m) => this.getSafeString(m.username).toLowerCase().startsWith(query.toLowerCase()))
-      .map((m) => ({ id: m.did, label: m.username || 'anonymous' }))
-      .slice(0, 10) as Suggestion[];
+      .map((m) => ({ id: m.did, label: m.username || 'anonymous' }));
+
+    const matches = [...groupMentions, ...memberMatches].slice(0, 10) as Suggestion[];
 
     this.suggestions = matches;
     return matches;
diff --git a/packages/flux-editor/src/mention.ts b/packages/flux-editor/src/mention.ts
index 0d9b06af8..7c69059ae 100644
--- a/packages/flux-editor/src/mention.ts
+++ b/packages/flux-editor/src/mention.ts
@@ -18,7 +18,7 @@ export default Node.create<MentionOptions>({
     return {
       HTMLAttributes: {},
       renderLabel({ node }) {
-        const isMention = node.attrs.id.startsWith('did:');
+        const isMention = node.attrs.id.startsWith('did:') || node.attrs.id.startsWith('ad4m://');
         return `${isMention ? '@' : '#'}${node.attrs.label ?? node.attrs.id}`;
       },
       suggestion: {