Fix remote likes, notification reads, and profile tabs

src/lib/swarm/likes.ts

@@ -0,0 +1,44 @@
+export interface SwarmLikeTarget {
+  id: string;
+  nodeDomain: string;
+  originalPostId: string;
+}
+
+export async function getViewerSwarmLikedPostIds(
+  targets: SwarmLikeTarget[],
+  viewerHandle: string,
+  viewerDomain: string
+): Promise<Set<string>> {
+  const likedIds = new Set<string>();
+
+  if (!targets.length || !viewerHandle || !viewerDomain) {
+    return likedIds;
+  }
+
+  await Promise.all(
+    targets.map(async (target) => {
+      try {
+        const protocol = target.nodeDomain.includes('localhost') ? 'http' : 'https';
+        const res = await fetch(
+          `${protocol}://${target.nodeDomain}/api/swarm/posts/${target.originalPostId}/likes?checkHandle=${encodeURIComponent(viewerHandle)}&checkDomain=${encodeURIComponent(viewerDomain)}`,
+          {
+            headers: { Accept: 'application/json' },
+            signal: AbortSignal.timeout(3000),
+          }
+        );
+
+        if (!res.ok) {
+          return;
+        }
+
+        const data = await res.json();
+        if (data.isLiked) {
+          likedIds.add(target.id);
+        }
+      } catch {
+      }
+    })
+  );
+
+  return likedIds;
+}