community: a proposal on your board arrives as a toast, carried sealed through the inbox

src/lib/community.svelte.js

@@ -8,6 +8,7 @@
 // <time>", never "online"; and the adapter's states are named for what they
 // are (node stopped, incompatible, connecting), never softened.
 import * as api from "./api.js";
+import { announceProposal } from "./state.svelte.js";
 
 const LS_SEEN = "community.lastSeen";
 const LS_FAVS = "community.roomFavs";
@@ -338,6 +339,11 @@ export async function initCommunity() {
             void refreshPublished();
         });
         api.onEvent("community:overlap", () => void refreshOverlap());
+        api.onEvent("community:proposal", (p) => {
+            announceProposal(p.from, p.playlist);
+            // If the board is already on screen, show what it is talking about.
+            if (community.board && community.space) void openBoard(community.space.owner, community.space.space_id);
+        });
         api.onEvent("soulseek:user-state", (p) => {
             if (p.status === 1 || p.status === 2) noteSeen(p.username);
         });

src/lib/state.svelte.js

@@ -235,6 +235,27 @@ export function announceUpload(username, name) {
     uploadToast.seq += 1;
 }
 
+/** Someone proposed a change to a playlist of ours (ProposalToast). The board
+ *  is only read on open and Refresh, so an arriving proposal would otherwise
+ *  be silent. One inbox check can dispatch several at once, so a burst on the
+ *  SAME playlist counts up inside one pill the way an album grab does. */
+export const proposalToast = $state({ seq: 0, from: "", playlist: "", count: 0 });
+const PROPOSAL_TOAST_WINDOW_MS = 8000;
+let proposalToastAt = 0;
+
+export function announceProposal(from, playlist) {
+    const now = Date.now();
+    if (proposalToast.playlist === playlist && now - proposalToastAt < PROPOSAL_TOAST_WINDOW_MS) {
+        proposalToast.count += 1;
+    } else {
+        proposalToast.playlist = playlist;
+        proposalToast.count = 1;
+    }
+    proposalToast.from = from;
+    proposalToastAt = now;
+    proposalToast.seq += 1;
+}
+
 /** Background-import status, read by ImportToast. The import window keeps
  *  scanning/copying after it is closed (the component stays mounted, only
  *  its template goes), and closed must never mean invisible: while work
@@ -7787,6 +7808,7 @@ if (import.meta.env.DEV) {
         autoConnect, refreshSourcePrefs, _sourceAudit, sourcePrefs,
         playlistStore, refreshPlaylists, goToView, peekNextIndices,
         slsk, search, runSearch, uploadToast, announceUpload,
+        proposalToast, announceProposal,
         searchTabs, selectSearchTab, closeSearchTab, filesForGroup,
         downloads, network, sendDm, openChat,
     };