import { nip19 } from '@nostr/tools';
import type { NPub } from '@nostr/tools/nip19';

export function getCCNList(): Promise<{ name: string; pubkey: string }[]> {
  return new Promise((resolve, reject) => {
    const ws = new WebSocket('ws://localhost:6942');
    ws.onopen = () => {
      ws.send(JSON.stringify(['CCN', 'LIST']));
    };
    ws.onmessage = (event) => {
      const data = JSON.parse(event.data);
      if (data[0] !== 'OK' || data[1] !== 'CCN LIST' || data[2] !== true) return;
      resolve(JSON.parse(data[3]));
    };
    ws.onerror = (event) => {
      reject(event);
    };
  });
}

export function getActiveCCNNpub() {
  const selectedCCN = localStorage.getItem('selectedCCN');
  if (!selectedCCN) return null;
  const { pubkey } = JSON.parse(selectedCCN);
  return nip19.npubEncode(pubkey);
}

export async function getCCNName(npub: NPub) {
  const ccnList = await getCCNList();
  const npubToPubkey = nip19.decode<'npub'>(npub);
  const ccn = ccnList.find((ccn) => ccn.pubkey === npubToPubkey.data);
  return ccn?.name;
}