feat: add support for custom emojis (NIP-30) (#63)

Reviewed-on: reya/coop#63

crates/nip29/Cargo.toml

@@ -10,6 +10,8 @@ anyhow.workspace = true
 futures.workspace = true
 serde_json.workspace = true
 state = { path = "../state" }
+common = { path = "../common" }
+person = { path = "../person" }
 chat = { path = "../chat" }
 
 gpui.workspace = true

crates/nip29/src/group.rs

@@ -3,8 +3,10 @@ use std::time::Duration;
 
 use anyhow::{Result, anyhow, bail};
 use chat::Message;
-use gpui::{App, AppContext, Context, EventEmitter, SharedString, Task};
+use common::emojis_from_tags;
+use gpui::{App, AppContext, Context, EventEmitter, SharedString, SharedUri, Task};
 use nostr_sdk::prelude::*;
+use person::PersonRegistry;
 use smallvec::{SmallVec, smallvec};
 use state::NostrRegistry;
 
@@ -31,6 +33,7 @@ enum Absorbed {
 pub struct Reaction {
     pub id: EventId,
     pub emoji: String,
+    pub image: Option<SharedUri>,
     pub author: PublicKey,
 }
 
@@ -233,7 +236,11 @@ impl Group {
         replies: Vec<EventId>,
         cx: &mut Context<Self>,
     ) -> Task<Result<()>> {
-        self.dispatch(move |id, prev| id.message(content, &replies, prev), cx)
+        let emojis = PersonRegistry::emoji_tags(content, cx);
+        self.dispatch(
+            move |id, prev| id.message(content, &replies, &emojis, prev),
+            cx,
+        )
     }
 
     pub fn send_reaction(
@@ -242,7 +249,11 @@ impl Group {
         emoji: String,
         cx: &mut Context<Self>,
     ) -> Task<Result<()>> {
-        self.dispatch(move |id, prev| id.reaction(target, &emoji, prev), cx)
+        let emojis = PersonRegistry::emoji_tags(&emoji, cx);
+        self.dispatch(
+            move |id, prev| id.reaction(target, &emoji, &emojis, prev),
+            cx,
+        )
     }
 
     pub fn remove_user(
@@ -756,9 +767,14 @@ impl Group {
             return false;
         }
 
+        let emojis = 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,
         });
 

crates/nip29/src/protocol.rs

@@ -110,18 +110,27 @@ impl GroupId {
         &self,
         content: &str,
         replies: &[EventId],
+        emojis: &[Tag],
         previous: Option<Tag>,
     ) -> EventBuilder {
         EventBuilder::new(Kind::ChatMessage, content)
             .tag(self.h_tag())
             .tags(replies.iter().copied().map(Tag::event))
+            .tags(emojis.iter().cloned())
             .tag_maybe(previous)
     }
 
-    pub fn reaction(&self, target: EventId, emoji: &str, previous: Option<Tag>) -> EventBuilder {
+    pub fn reaction(
+        &self,
+        target: EventId,
+        emoji: &str,
+        emojis: &[Tag],
+        previous: Option<Tag>,
+    ) -> EventBuilder {
         EventBuilder::new(Kind::Reaction, emoji)
             .tag(self.h_tag())
             .tag(Tag::event(target))
+            .tags(emojis.iter().cloned())
             .tag_maybe(previous)
     }