/**
 * Migration Script: Assign missing VOD vtubers to "projektmelody"
 * ---------------------------------------------------------------
 * This script connects to a PocketBase instance and updates all VOD records
 * that do not have a `vtuber` set, assigning them to the vtuber with slug "projektmelody".
 *
 * Environment variables:
 *   PB_URL                Base URL of your PocketBase instance (e.g. "http://127.0.0.1:8090")
 *   PB_ADMIN_EMAIL        PocketBase admin email
 *   PB_ADMIN_PASS         PocketBase admin password
 *
 * Usage:
 *   $ npx @dotenvx/dotenvx run -f .env.local -- node ./2025-11-05-fix-vod-vtuber.js
 */

import PocketBase from 'pocketbase';

const pb = new PocketBase(process.env.PB_URL || 'http://127.0.0.1:8090');

async function main() {
  console.log('Authenticating with PocketBase...');
  await pb
    .collection("_superusers")
    .authWithPassword(process.env.PB_USERNAME, process.env.PB_PASSWORD);


  console.log('Fetching vtuber "projektmelody"...');
  const projekt = await pb.collection('vtubers').getFirstListItem('slug="projektmelody"');
  if (!projekt) {
    throw new Error('Could not find vtuber with slug "projektelody"');
  }

  console.log('Fetching VODs...');
  let page = 1;
  const perPage = 50;
  let updatedCount = 0;

  while (true) {
    const vods = await pb.collection('vods').getList(page, perPage);
    if (vods.items.length === 0) break;

    for (const vod of vods.items) {
      // Only update if vtuber is missing or empty
      if (!vod.vtubers || vod.vtubers.length === 0) {
        await pb.collection('vods').update(vod.id, {
          vtubers: [projekt.id],
        });
        console.log(`✅ Updated VOD ${vod.id} → projektmelody`);
        updatedCount++;
      }
    }

    if (vods.items.length < perPage) break;
    page++;
  }

  console.log(`Done! Updated ${updatedCount} VODs that had no vtuber set.`);
  pb.authStore.clear();
}

main().catch((err) => {
  console.error('Migration failed:', err);
  process.exit(1);
});