import { Episode, type EpisodesResponse } from "./episode";

export async function getEpisodesFromAmvstrm(
  aniListId: number,
): Promise<EpisodesResponse | null> {
  try {
    const episodes: Episode[] | null = await fetch(
      `https://api.amvstr.me/api/v2/episode/${aniListId}`,
    )
      .then((res) => res.json<AmvstrmEpisodesResponse>())
      .then(({ code, message, episodes }) => {
        if (code >= 400) {
          console.error(
            `Error trying to load episodes from amvstrm; aniListId: ${aniListId}, code: ${code}, message: ${message}`,
          );
          return null;
        }

        return episodes.map<Episode>(
          ({ id, description, image, title, episode, airDate }) => ({
            id,
            number: episode,
            description,
            img: image,
            title,
            updatedAt: airDate ?? 0,
          }),
        );
      });
    if (!episodes || episodes.length === 0) {
      return null;
    }

    return { providerId: "amvstrm", episodes };
  } catch (error) {
    console.error(
      new Error(
        `Error trying to load episodes from amvstrm; aniListId: ${aniListId}`,
        { cause: error },
      ),
    );
  }

  return null;
}

interface AmvstrmEpisodesResponse {
  code: number;
  message: string;
  episodes: AmvstrmEpisode[];
}

interface AmvstrmEpisode {
  id: string;
  title: string;
  description: string | null;
  episode: number;
  image: string;
  airDate: null;
}