/**
 * Profile caching (kind 0 events)
 */

import { getDB } from './indexeddb-store.js';
import type { NostrEvent } from '../../types/nostr.js';
import { KIND } from '../../types/kind-lookup.js';

export interface CachedProfile {
  pubkey: string;
  event: NostrEvent;
  cached_at: number;
}

/**
 * Store a profile in cache
 */
export async function cacheProfile(event: NostrEvent): Promise<void> {
  if (event.kind !== KIND.METADATA) throw new Error('Not a profile event');
  try {
  const db = await getDB();
  const cached: CachedProfile = {
    pubkey: event.pubkey,
    event,
    cached_at: Date.now()
  };
  await db.put('profiles', cached);
  } catch (error) {
    // Cache write failed (non-critical)
    // Don't throw - caching failures shouldn't break the app
  }
}

/**
 * Get profile by pubkey from cache
 */
export async function getProfile(pubkey: string): Promise<CachedProfile | undefined> {
  try {
  const db = await getDB();
    return await db.get('profiles', pubkey);
  } catch (error) {
    // Cache read failed (non-critical)
    return undefined;
  }
}

/**
 * Get multiple profiles
 */
export async function getProfiles(pubkeys: string[]): Promise<Map<string, CachedProfile>> {
  try {
  const db = await getDB();
  const profiles = new Map<string, CachedProfile>();
  const tx = db.transaction('profiles', 'readonly');

  for (const pubkey of pubkeys) {
    const profile = await tx.store.get(pubkey);
    if (profile) {
      profiles.set(pubkey, profile);
    }
  }

  await tx.done;
  return profiles;
  } catch (error) {
    // Cache read failed (non-critical)
    return new Map();
  }
}