/**
 * @typedef {Object} Suggestion
 * @property {string} title
 * @property {string} id
 * @property {number=} duration
 * @property {boolean=} isShort
 * @property {string=} url
 * @property {string=} thumbnail
 * @property {string=} uploaderName
 * @property {string=} type
 */

/** @type {{ id: 'yt', label: string, search: (q: string, opts: { limit: number, page?: number, sort?: 'relevance'|'date'|'views' }) => Promise<Suggestion[]> }} */
const handler = {
  id: 'yt',
  label: 'YouTube',
  async search(q, opts) {
    const { limit = 10, sort = 'relevance' } = opts || {};
    try {
      const API_KEY = process.env.YOUTUBE_API_KEY;
      if (!API_KEY) {
        throw new Error('YOUTUBE_API_KEY not configured');
      }

      let order = 'relevance';
      if (sort === 'date') order = 'date';
      else if (sort === 'views') order = 'viewCount';

      const response = await fetch(
        `https://www.googleapis.com/youtube/v3/search?` +
        new URLSearchParams({
          part: 'snippet',
          q: q,
          type: 'video',
          maxResults: Math.min(limit, 50).toString(),
          key: API_KEY,
          order
        })
      );

      if (!response.ok) {
        throw new Error(`YouTube API error: ${response.status}`);
      }

      const data = await response.json();

      return (data.items || []).map(item => ({
        title: item.snippet.title,
        id: item.id.videoId,
        url: `https://www.youtube.com/watch?v=${item.id.videoId}`,
        thumbnail: item.snippet.thumbnails?.medium?.url || item.snippet.thumbnails?.default?.url,
        uploaderName: item.snippet.channelTitle,
        type: 'video'
      }));
    } catch (error) {
      console.error('YouTube search error:', error);
      return [];
    }
  }
};

export default handler;