import type { NostrEvent } from '../../../types/api/nostrSignEvent';

export function validateEvent(event: NostrEvent): boolean {
  if (!(event instanceof Object)) return false;
  if (typeof event.kind !== 'number') return false;
  if (typeof event.content !== 'string') return false;
  if (typeof event.created_at !== 'number') return false;
  // ignore pubkey checks because if the pubkey is not set we add it to the event. same for the ID.

  if (!Array.isArray(event.tags)) return false;
  for (let i = 0; i < event.tags.length; i += 1) {
    const tag = event.tags[i];
    if (!Array.isArray(tag)) return false;
    for (let j = 0; j < tag.length; j += 1) {
      if (typeof tag[j] === 'object') return false;
    }
  }

  return true;
}

export function serializeEvent(event: NostrEvent): string {
  if (!validateEvent(event))
    throw new Error("can't serialize event with wrong or missing properties");

  // https://github.com/nostr-protocol/nips/blob/master/01.md
  return JSON.stringify([0, event.pubkey, event.created_at, event.kind, event.tags, event.content]);
}