/**
 * Set placeholder speaker / committee names on all Crest org static microsites.
 *
 * Usage:
 *   node scripts/update-crest-microsite-speakers.js [--publish] [--org-id=<id>]
 */
const path = require('path');

require('dotenv').config({ path: path.join(__dirname, '..', '.env') });
const mongoose = require('mongoose');
const { connectDB } = require('../src/config/database');
const EventStaticMicrosite = require('../src/models/EventStaticMicrosite');
const Event = require('../src/models/Event');
const MicrositeV2Template = require('../src/models/MicrositeV2Template');
const User = require('../src/models/User');
const { publishStaticMicrosite } = require('../src/utils/publishStaticMicrosite');

const DEFAULT_ORG_ID = '6a43dfeddc940a0d6e057eef';
const TEAM_IMAGES = [
  'https://did94hhhcgq1d.cloudfront.net/eventbuzz/microsite-v2/templates/crest-novel/assets/img/team/team-01.jpg',
  'https://did94hhhcgq1d.cloudfront.net/eventbuzz/microsite-v2/templates/crest-novel/assets/img/team/team-02.jpg',
  'https://did94hhhcgq1d.cloudfront.net/eventbuzz/microsite-v2/templates/crest-novel/assets/img/team/team-03.jpg',
  'https://did94hhhcgq1d.cloudfront.net/eventbuzz/microsite-v2/templates/crest-novel/assets/img/team/team-04.jpg',
];

function argValue(name, fallback) {
  const hit = process.argv.find((a) => a.startsWith(`--${name}=`));
  return hit ? hit.split('=').slice(1).join('=').trim() : fallback;
}

function namePrefixForTab(label) {
  const normalized = String(label || '').trim().toLowerCase();
  if (normalized === 'speakers') return 'Speaker';
  if (normalized.includes('organis')) return 'Organising Committee';
  if (normalized.includes('scientific')) return 'Scientific Committee';
  return String(label || 'Member').trim() || 'Member';
}

function placeholderItem(index, imageIndex = 0) {
  return {
    image: TEAM_IMAGES[imageIndex % TEAM_IMAGES.length],
    name: '',
    role: '',
    url: 'index.html#',
  };
}

function renameTabItems(tab) {
  const prefix = namePrefixForTab(tab.label);
  const items = Array.isArray(tab.items) ? tab.items : [];
  return {
    ...tab,
    items: items.map((item, index) => ({
      ...item,
      name: `${prefix} ${index + 1}`,
    })),
  };
}

function defaultSpeakersSection() {
  const counts = [
    { label: 'Speakers', count: 4 },
    { label: 'Organising Committee', count: 3 },
    { label: 'Scientific Committee', count: 3 },
  ];
  let imageIndex = 0;
  const tabs = counts.map(({ label, count }) => ({
    label,
    items: Array.from({ length: count }, () => {
      const item = placeholderItem(imageIndex, imageIndex);
      imageIndex += 1;
      return item;
    }),
  }));
  return {
    show: true,
    heading: 'Our Speakers',
    subtitle: 'Leading respiratory medicine experts and committee members from across India.',
    tabs: tabs.map(renameTabItems),
  };
}

function applyPlaceholderNames(speakers) {
  if (!speakers || typeof speakers !== 'object') {
    return defaultSpeakersSection();
  }

  const next = { ...speakers, show: true };

  if (Array.isArray(next.tabs) && next.tabs.length) {
    next.tabs = next.tabs.map(renameTabItems);
    delete next.items;
    return next;
  }

  if (Array.isArray(next.items) && next.items.length) {
    next.items = next.items.map((item, index) => ({
      ...item,
      name: `Speaker ${index + 1}`,
    }));
    return next;
  }

  return defaultSpeakersSection();
}

async function findPublishUser() {
  const userIdArg = argValue('user-id', '');
  if (userIdArg) {
    const u = await User.findById(userIdArg);
    if (u) return u;
  }
  const platform = await User.findOne({ platform_admin: 'yes', isActive: { $ne: false } }).sort({ createdAt: 1 });
  if (platform) return platform;
  const superAdmin = await User.findOne({ role: 'super_admin' }).sort({ createdAt: 1 });
  if (superAdmin) return superAdmin;
  throw new Error('No user found for publish. Pass --user-id=<mongoId>');
}

async function main() {
  const orgId = argValue('org-id', DEFAULT_ORG_ID);
  const shouldPublish = process.argv.includes('--publish');

  if (!mongoose.Types.ObjectId.isValid(orgId)) {
    throw new Error(`Invalid org id: ${orgId}`);
  }

  await connectDB();

  const sites = await EventStaticMicrosite.find({ organization: orgId })
    .populate('event', 'name')
    .populate('template')
    .sort({ subdomain: 1 });

  if (!sites.length) {
    throw new Error(`No static microsites found for organization ${orgId}`);
  }

  const user = shouldPublish ? await findPublishUser() : null;

  for (const site of sites) {
    const config = site.config && typeof site.config === 'object' ? { ...site.config } : {};
    const sections = { ...(config.sections || {}) };
    sections.speakers = applyPlaceholderNames(sections.speakers);
    config.sections = sections;
    site.config = config;
    site.markModified('config');
    await site.save();

    console.log(`Updated ${site.subdomain} (${site.event?.name || site.event})`);

    if (shouldPublish) {
      const result = await publishStaticMicrosite({
        staticMicrosite: site,
        template: site.template,
        userId: user._id,
      });
      Object.assign(site, result);
      await site.save();
      console.log(`  Published: ${result.publicUrl}`);
    }
  }

  console.log(`Done. ${sites.length} microsite(s) updated.${shouldPublish ? '' : ' Re-run with --publish to publish.'}`);
  await mongoose.disconnect();
}

main().catch((err) => {
  console.error(err);
  process.exit(1);
});