import { Source } from './source';
import { AvatarSource } from './avatar-source.enum';

/**
 *  Twitter source implementation.
 *  Fetch avatar source based on google identifier
 *  and image size
 */
export class Twitter implements Source {
  readonly sourceType: AvatarSource = AvatarSource.TWITTER;

  constructor(public sourceId: string) {}

  public getAvatar(size: number): string {
    const twitterImgSize = this.getImageSize(size);
    return `https://twitter.com/${
      this.sourceId
    }/profile_image?size=${twitterImgSize}`;
  }

  private getImageSize(size: number) {
    if (size <= 24) {
      return 'mini';
    }

    if (size <= 48) {
      return 'normal';
    }

    if (size <= 73) {
      return 'bigger';
    }

    return 'original';
  }
}