Support NIP-30 custom emoji in messages and reactions

crates/nip29/src/group.rs

@@ -3,7 +3,7 @@ use std::time::Duration;
 
 use anyhow::{Result, anyhow, bail};
 use chat::Message;
-use gpui::{App, AppContext, Context, EventEmitter, SharedString, Task};
+use gpui::{App, AppContext, Context, EventEmitter, SharedString, SharedUri, Task};
 use nostr_sdk::prelude::*;
 use smallvec::{SmallVec, smallvec};
 use state::NostrRegistry;
@@ -31,6 +31,7 @@ enum Absorbed {
 pub struct Reaction {
     pub id: EventId,
     pub emoji: String,
+    pub image: Option<SharedUri>,
     pub author: PublicKey,
 }
 
@@ -756,9 +757,14 @@ impl Group {
             return false;
         }
 
+        let emojis = Message::emojis_from_tags(&event.tags);
+        let image = Message::reaction_image(&event.content, &emojis)
+            .map(|url| SharedUri::from(url.to_string()));
+
         self.reactions.entry(target).or_default().push(Reaction {
             id: event.id,
             emoji: event.content.clone(),
+            image,
             author: event.pubkey,
         });