initial commit

update-follow-list.ts

@@ -0,0 +1,51 @@
+import {
+    type NDKEvent,
+    type NDKUser,
+    profileFromEvent,
+} from "@nostr-dev-kit/ndk";
+import { ndk } from "./ndk.js";
+import { knownUsers, saveKnownUsers, saveUserProfile } from "./users.js";
+import { addFollows } from "./wot.js";
+
+export async function updateFollowList(user: NDKUser) {
+    const follows = await user.followSet();
+    const followsList = Array.from(follows.keys());
+
+    // Store follows in the database
+    addFollows(user.pubkey, followsList);
+
+    const unknownUsers = new Set<string>();
+
+    for (const follow of followsList) {
+        if (!knownUsers[follow]) {
+            unknownUsers.add(follow);
+        }
+    }
+
+    const profilesSub = ndk.subscribe([
+        { kinds: [0, 3], authors: Array.from(unknownUsers) },
+    ]);
+
+    profilesSub.on("event", (event: NDKEvent) => {
+        if (event.kind === 0) handleProfileEvent(event);
+        else if (event.kind === 3) handleFollowEvent(event);
+    });
+
+    profilesSub.on("eose", () => {
+        saveKnownUsers();
+    });
+}
+
+function handleProfileEvent(event: NDKEvent) {
+    const profile = profileFromEvent(event);
+    // Save directly to database instead of just updating the cache
+    saveUserProfile(event.pubkey, profile, event.content);
+}
+
+function handleFollowEvent(event: NDKEvent) {
+    const follows = event.tags
+        .filter((tag) => tag[0] === "p")
+        .map((tag) => tag[1])
+        .filter(Boolean) as string[];
+    addFollows(event.pubkey, follows);
+}