Migrate extractors

import { BaseExtractor, Track } from 'discord-player';
import type { ExtractorSearchContext } from 'discord-player';

class MyLegacyExtractor extends BaseExtractor {
  static identifier = 'my.source';

  async validate(query: string) {
    return query.startsWith('https://');
  }

  async handle(query: string, context: ExtractorSearchContext) {
    return this.createResponse(null, [
      new Track(this.context.player, {
        title: 'Audio',
        url: query,
        requestedBy: context.requestedBy,
        engine: query,
      }),
    ]);
  }

  async stream(track: Track) {
    return track.raw.engine as string;
  }
}

await player.extractors.register(MyLegacyExtractor, {});

import { definePlugin, Track } from 'discord-player';

export const mySource = definePlugin({
  id: 'my.source',

  setup(ctx) {
    ctx.on('search.query.match', ({ query }) => (query.startsWith('https://') ? { score: 100 } : null));

    ctx.on('search.query.resolve', ({ query }) => ({
      playlist: null,
      tracks: [new Track({ title: 'Audio', url: query })],
    }));

    ctx.on('track.stream', ({ track }) => ({ url: track.url }));
  },
});