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Add NIP-29 member list fallback to derive participants from messages

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When NIP-29 relays don't provide kind 39001/39002 member list events,
the chat participant list would be empty. This change augments the
static participant list with pubkeys from message authors, ensuring
users can still see who is active in the group while preserving
admin/moderator roles from the member list when available.

https://claude.ai/code/session_01Qikw63P4kxwR6ceCQuFMAM
This commit is contained in:
Claude
2026-01-27 10:16:15 +00:00
parent 34bad20ce9
commit 7378b0f50a
1 changed files with 24 additions and 1 deletions
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25
src/components/ChatViewer.tsx
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@@ -31,7 +31,7 @@ import { Nip10Adapter } from "@/lib/chat/adapters/nip-10-adapter";
import { Nip29Adapter } from "@/lib/chat/adapters/nip-29-adapter";
import { Nip53Adapter } from "@/lib/chat/adapters/nip-53-adapter";
import type { ChatProtocolAdapter } from "@/lib/chat/adapters/base-adapter";
import type { Message } from "@/types/chat";
import type { Message, ParticipantRole } from "@/types/chat";
import type { ChatAction } from "@/types/chat-actions";
import { parseSlashCommand } from "@/lib/chat/slash-command-parser";
import {
@@ -895,6 +895,29 @@ export function ChatViewer({
return participants;
}
// NIP-29 groups: use static participants but fallback to message authors if empty
// Some relays may not provide kind 39001/39002 member list events
if (protocol === "nip-29" && messages) {
const staticParticipants = conversation?.participants || [];
// If we have static participants from member list events, use them as base
// and augment with message authors
const participants: { pubkey: string; role?: ParticipantRole }[] = [
...staticParticipants,
];
const seen = new Set(staticParticipants.map((p) => p.pubkey));
// Add message authors who aren't already in the list as members
for (const msg of messages) {
if (msg.type !== "system" && !seen.has(msg.author)) {
seen.add(msg.author);
participants.push({ pubkey: msg.author, role: "member" });
}
}
return participants;
}
// Other protocols: use static participants from conversation
return conversation?.participants || [];
}, [