webvideo-transcript-summary-core/src/index.ts

import { SummarizerEventEmitter } from './common';
import {
  CreateYouTubeSummarizerParams,
  YouTubeSummarizerEventEmitter,
} from './video-types/youtube';

export enum VideoType {
  YOUTUBE = 'youtube',
}

export interface CreateSummarizerParams extends CreateYouTubeSummarizerParams {
  type: VideoType;
}

export const createSummarizer = (params: CreateSummarizerParams): SummarizerEventEmitter => {
  const {
    type: videoType,
    url,
    openaiOrganizationId,
    openaiApiKey,
    language,
    country,
  } = params;

  switch (videoType as string) {
    case VideoType.YOUTUBE:
      return new YouTubeSummarizerEventEmitter({
        url,
        openaiOrganizationId,
        openaiApiKey,
        language,
        country,
      });
    default:
      break;
  }

  throw new TypeError(`Invalid video type: "${videoType}". Valid values are: ${JSON.stringify(Object.values(VideoType))}`);
};