refactor and add list_snippets

lib/converters/users.ts

@@ -0,0 +1,44 @@
+import { ndk } from "../../ndk.js";
+import { knownUsers } from "../../users.js";
+import { queryUser } from "../../users.js";
+
+/**
+ * Converts an identifier (pubkey, npub, or name) to pubkeys
+ * @param identifier The identifier to convert
+ * @returns Array of pubkeys
+ */
+export function toPubkeys(identifier: string): string[] {
+    // If it's an npub, convert directly
+    if (identifier.startsWith("npub")) {
+        return [ndk.getUser({ npub: identifier }).pubkey];
+    }
+
+    // If it's a hex pubkey, return as is
+    if (identifier.length === 64 && /^[0-9a-f]+$/i.test(identifier)) {
+        return [identifier];
+    }
+
+    // Otherwise, search by profile name or other attributes
+    return queryUser(identifier);
+}
+
+/**
+ * Format user profile data for display
+ * @param pubkey User public key
+ * @returns Formatted string representation
+ */
+export function formatUser(pubkey: string): string {
+    const profile = knownUsers[pubkey]?.profile;
+    const user = ndk.getUser({ pubkey });
+    const keys: Record<string, string> = {
+        Npub: user.npub,
+    };
+
+    if (profile?.name) keys.Name = profile.name;
+    if (profile?.about) keys.About = profile.about;
+    if (profile?.picture) keys.Picture = profile.picture;
+
+    return Object.entries(keys)
+        .map(([key, value]) => `${key}: ${value}`)
+        .join("\n");
+}