import { Handlers } from "$fresh/server.ts";
import { json } from "@lib/helpers.ts";
import * as tmdb from "@lib/tmdb.ts";
import { fileExtension } from "https://deno.land/x/file_extension@v2.1.0/mod.ts";
import { isString, safeFileName } from "@lib/string.ts";
import { AccessDeniedError } from "@lib/errors.ts";
import { Series } from "@lib/resource/series.ts";
import { createResource, fetchResource } from "@lib/marka.ts";

export const handler: Handlers = {
  async GET(_, ctx) {
    const series = await fetchResource(`series/${ctx.params.name}`);
    return json(series);
  },
  async POST(_, ctx) {
    const session = ctx.state.session;
    if (!session) {
      throw new AccessDeniedError();
    }

    const tmdbId = parseInt(ctx.params.name);

    const seriesDetails = await tmdb.getSeries(tmdbId);
    const seriesCredits = await tmdb.getSeriesCredits(tmdbId);

    const releaseDate = seriesDetails.first_air_date;
    const posterPath = seriesDetails.poster_path;
    const director =
      seriesCredits?.crew?.filter?.((person) => person.job === "Director")[0] ||
      seriesDetails.created_by?.[0];

    let finalPath = "";
    const name = seriesDetails.name || seriesDetails.original_name ||
      ctx.params.name;
    if (posterPath) {
      const poster = await tmdb.getMoviePoster(posterPath);
      const extension = fileExtension(posterPath);

      finalPath = `series/images/${safeFileName(name)}_cover.${extension}`;
      await createResource(finalPath, poster);
    }

    const tags: string[] = [];
    if (seriesDetails.genres) {
      tags.push(
        ...seriesDetails.genres.map((g) => g.name?.toLowerCase()).filter(
          isString,
        ),
      );
    }

    const series: Series = {
      _type: "Review",
      image: finalPath,
      datePublished: releaseDate,
      tmdbId,
      author: {
        _type: "Person",
        name: director?.name,
      },
      itemReviewed: {
        name: name,
      },
      reviewBody: "",
      keywords: tags,
    };

    await createResource(`series/${safeFileName(name)}.md`, series);

    return json(series);
  },
};