import fs from 'node:fs';
import path from 'node:path';
import { dirname } from 'node:path';
import { fileURLToPath } from 'node:url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

// extras
const extraReferrers = {
  'zoom.us': { type: 'social', name: 'Zoom' },
  'apple.com': { type: 'tech', name: 'Apple' },
  'adobe.com': { type: 'tech', name: 'Adobe' },
  'figma.com': { type: 'tech', name: 'Figma' },
  'wix.com': { type: 'commerce', name: 'Wix' },
  'gmail.com': { type: 'email', name: 'Gmail' },
  'notion.so': { type: 'tech', name: 'Notion' },
  'ebay.com': { type: 'commerce', name: 'eBay' },
  'github.com': { type: 'tech', name: 'GitHub' },
  'gitlab.com': { type: 'tech', name: 'GitLab' },
  'slack.com': { type: 'social', name: 'Slack' },
  'etsy.com': { type: 'commerce', name: 'Etsy' },
  'bsky.app': { type: 'social', name: 'Bluesky' },
  'twitch.tv': { type: 'content', name: 'Twitch' },
  'dropbox.com': { type: 'tech', name: 'Dropbox' },
  'outlook.com': { type: 'email', name: 'Outlook' },
  'medium.com': { type: 'content', name: 'Medium' },
  'paypal.com': { type: 'commerce', name: 'PayPal' },
  'discord.com': { type: 'social', name: 'Discord' },
  'stripe.com': { type: 'commerce', name: 'Stripe' },
  'spotify.com': { type: 'content', name: 'Spotify' },
  'netflix.com': { type: 'content', name: 'Netflix' },
  'whatsapp.com': { type: 'social', name: 'WhatsApp' },
  'shopify.com': { type: 'commerce', name: 'Shopify' },
  'microsoft.com': { type: 'tech', name: 'Microsoft' },
  'alibaba.com': { type: 'commerce', name: 'Alibaba' },
  'telegram.org': { type: 'social', name: 'Telegram' },
  'substack.com': { type: 'content', name: 'Substack' },
  'salesforce.com': { type: 'tech', name: 'Salesforce' },
  'instagram.com': { type: 'social', name: 'Instagram' },
  'wikipedia.org': { type: 'content', name: 'Wikipedia' },
  'mastodon.social': { type: 'social', name: 'Mastodon' },
  'office.com': { type: 'tech', name: 'Microsoft Office' },
  'squarespace.com': { type: 'commerce', name: 'Squarespace' },
  'stackoverflow.com': { type: 'tech', name: 'Stack Overflow' },
  'teams.microsoft.com': { type: 'social', name: 'Microsoft Teams' },
};

function transform(data: any) {
  const obj: Record<string, unknown> = {};
  for (const type in data) {
    for (const name in data[type]) {
      const domains = data[type][name].domains ?? [];
      for (const domain of domains) {
        obj[domain] = {
          type,
          name,
        };
      }
    }
  }

  return obj;
}

async function main() {
  // Get document, or throw exception on error
  try {
    const data = await fetch(
      'https://s3-eu-west-1.amazonaws.com/snowplow-hosted-assets/third-party/referer-parser/referers-latest.json',
    ).then((res) => res.json());

    fs.writeFileSync(
      path.resolve(__dirname, '../../worker/src/referrers/index.ts'),
      [
        '// This file is generated by the script get-referrers.ts',
        '',
        '// The data is fetch from snowplow-referer-parser https://github.com/snowplow-referer-parser/referer-parser',
        `// The orginal referers.yml is based on Piwik's SearchEngines.php and Socials.php, copyright 2012 Matthieu Aubry and available under the GNU General Public License v3.`,
        '',
        `const referrers: Record<string, { type: string, name: string }> = ${JSON.stringify(
          {
            ...transform(data),
            ...extraReferrers,
          },
        )} as const;`,
        'export default referrers;',
      ].join('\n'),
      'utf-8',
    );
  } catch (e) {
    console.log(e);
  }
}

main();