feat: add useEventReactions to system-react

packages/app/src/Hooks/useEventReactions.tsx

@@ -1,49 +0,0 @@
-import { EventKind, NostrLink, parseZap, TaggedNostrEvent } from "@snort/system";
-import { UserCache } from "Cache";
-import { useMemo } from "react";
-import { dedupeByPubkey, getLinkReactions, normalizeReaction, Reaction } from "SnortUtils";
-
-export function useEventReactions(ev: TaggedNostrEvent, related: ReadonlyArray<TaggedNostrEvent>) {
-  return useMemo(() => {
-    const link = NostrLink.fromEvent(ev);
-    const deletions = getLinkReactions(related, link, EventKind.Deletion);
-    const reactions = getLinkReactions(related, link, EventKind.Reaction);
-    const reposts = getLinkReactions(related, link, EventKind.Repost);
-
-    const groupReactions = (() => {
-      const result = reactions?.reduce(
-        (acc, reaction) => {
-          const kind = normalizeReaction(reaction.content);
-          const rs = acc[kind] || [];
-          return { ...acc, [kind]: [...rs, reaction] };
-        },
-        {
-          [Reaction.Positive]: [] as TaggedNostrEvent[],
-          [Reaction.Negative]: [] as TaggedNostrEvent[],
-        },
-      );
-      return {
-        [Reaction.Positive]: dedupeByPubkey(result[Reaction.Positive]),
-        [Reaction.Negative]: dedupeByPubkey(result[Reaction.Negative]),
-      };
-    })();
-    const positive = groupReactions[Reaction.Positive];
-    const negative = groupReactions[Reaction.Negative];
-
-    const zaps = getLinkReactions(related, link, EventKind.ZapReceipt)
-      .map(a => parseZap(a, UserCache, ev))
-      .filter(a => a.valid)
-      .sort((a, b) => b.amount - a.amount);
-
-    return {
-      deletions,
-      reactions: {
-        all: reactions,
-        positive,
-        negative,
-      },
-      reposts,
-      zaps,
-    };
-  }, [ev, related]);
-}

packages/app/src/SnortUtils/index.ts

@@ -140,29 +140,6 @@ export function hexToBech32(hrp: string, hex?: string) {
     return "";
   }
 }
-
-/**
- * Reaction types
- */
-export const Reaction = {
-  Positive: "+",
-  Negative: "-",
-};
-
-/**
- * Return normalized reaction content
- */
-export function normalizeReaction(content: string) {
-  switch (content) {
-    case "-":
-      return Reaction.Negative;
-    case "👎":
-      return Reaction.Negative;
-    default:
-      return Reaction.Positive;
-  }
-}
-
 export function getLinkReactions(
   notes: ReadonlyArray<TaggedNostrEvent> | undefined,
   link: NostrLink,