refactor: RequestBuilder

packages/app/src/Hooks/useNotelistSubscription.ts

@@ -0,0 +1,46 @@
+import { useMemo } from "react";
+import { useSelector } from "react-redux";
+import { HexKey, Lists, EventKind } from "@snort/nostr";
+
+import { RootState } from "State/Store";
+import { FlatNoteStore, ParameterizedReplaceableNoteStore, RequestBuilder } from "System";
+import useRequestBuilder from "Hooks/useRequestBuilder";
+
+export default function useNotelistSubscription(pubkey: HexKey | undefined, l: Lists, defaultIds: HexKey[]) {
+  const { preferences, publicKey } = useSelector((s: RootState) => s.login);
+  const isMe = publicKey === pubkey;
+
+  const sub = useMemo(() => {
+    if (isMe || !pubkey) return null;
+    const rb = new RequestBuilder(`note-list-${l}:${pubkey.slice(0, 12)}`);
+    rb.withFilter().kinds([EventKind.NoteLists]).authors([pubkey]).tag("d", [l]).limit(1);
+
+    return rb;
+  }, [pubkey]);
+
+  const listStore = useRequestBuilder<ParameterizedReplaceableNoteStore>(ParameterizedReplaceableNoteStore, sub);
+  const etags = useMemo(() => {
+    if (isMe) return defaultIds;
+    // there should only be a single event here because we only load 1 pubkey
+    if (listStore.data && listStore.data.length > 0) {
+      return listStore.data[0].tags.filter(a => a[0] === "e").map(a => a[1]);
+    }
+    return [];
+  }, [listStore.data, isMe, defaultIds]);
+
+  const esub = useMemo(() => {
+    if (!pubkey || etags.length === 0) return null;
+    const s = new RequestBuilder(`${l}-notes:${pubkey.slice(0, 12)}`);
+    s.withFilter().kinds([EventKind.TextNote]).ids(etags);
+    if (etags.length > 0 && preferences.enableReactions) {
+      s.withFilter()
+        .kinds([EventKind.Reaction, EventKind.Repost, EventKind.Deletion, EventKind.ZapReceipt])
+        .tag("e", etags);
+    }
+    return s;
+  }, [etags, pubkey, preferences]);
+
+  const store = useRequestBuilder<FlatNoteStore>(FlatNoteStore, esub);
+
+  return store.data ?? [];
+}