import { env } from '$env/dynamic/public';

export const cdn = (urlString: string | undefined) =>
  !urlString ||
  !['http', 'https'].some((protocol) => urlString.startsWith(protocol)) ||
  env.PUBLIC_ANILIST_REDIRECT_URI?.includes('localhost') ||
  [
    'api.telegram.org',
    'telegra.ph',
    't.me',
    'discord.com',
    'cdn.discordapp.com',
    'media.discordapp.net',
    'images-ext-1.discordapp.net',
    'images-ext-2.discordapp.net',
    'media.trace.moe',
    'files.catbox.moe'
  ].includes(new URL(urlString).hostname)
    ? urlString
    : `https://cdn.due.moe?url=${encodeURIComponent(urlString)}`;

export const thumbnail = (url: string | undefined) => {
  const width = 144;
  const height = 200;

  if (url && url.includes('catbox.moe') && !url.includes('gif'))
    return url.replace('catbox.moe/', 'catbox.moe/thumbs/t_');

  if (url && url.includes('imgur') && !url.includes('gif'))
    return (!url.includes('i.imgur.com') ? url.replace('imgur.com', 'i.imgur.com') : url).replace(
      /(\.\w+)$/,
      `_d.webp?maxwidth=${width}&shape=thumb&fidelity=high`
    );

  if (url && url.includes('discordapp')) {
    const match = url.match(/attachments\/(\d+)\/(\d+)\/(.+)/);

    if (match) {
      const [, server, id, file] = match;

      return `https://media.discordapp.net/attachments/${server}/${id}/${file}?width=${width}&height=${height}`;
    }
  }

  return url;
};