import { HandlerContext } from "$fresh/server.ts";
import { createDocument, getDocument } from "@lib/documents.ts";
import { fileExtension } from "https://deno.land/x/file_extension/mod.ts";
import { parseMovie } from "@lib/movies.ts";
import * as tmdb from "@lib/tmdb.ts";

function safeFileName(inputString: string): string {
  // Convert the string to lowercase
  let fileName = inputString.toLowerCase();

  // Replace spaces with underscores
  fileName = fileName.replace(/ /g, "_");

  // Remove characters that are not safe for file names
  fileName = fileName.replace(/[^\w.-]/g, "");

  return fileName;
}

export async function getMovie(name: string) {
  const document = await getDocument(`Media/movies/${name}.md`);

  const movie = parseMovie(document, name);

  return movie;
}

export const handler = async (
  _req: Request,
  _ctx: HandlerContext,
): Promise<Response> => {
  const headers = new Headers();
  headers.append("Content-Type", "application/json");

  if (_req.method === "GET") {
    const movie = await getMovie(_ctx.params.name);
    return new Response(JSON.stringify(movie));
  }

  if (_req.method === "POST") {
    const body = await _req.json();
    const name = _ctx.params.name;
    const { tmdbId } = body;
    if (!name || !tmdbId) {
      return new Response("Bad Request", {
        status: 400,
      });
    }
    const movieDetails = await tmdb.getMovie(tmdbId);
    const movieCredits = await tmdb.getMovieCredits(tmdbId);

    const releaseDate = movieDetails.release_date;
    const posterPath = movieDetails.poster_path;
    const director = movieCredits?.crew?.filter?.((person) =>
      person.job === "Director"
    );

    if (posterPath) {
      const poster = await tmdb.getMoviePoster(posterPath);
      const extension = fileExtension(posterPath);
      const finalPath = `Media/movies/images/${
        safeFileName(name)
      }_cover.${extension}`;
      await createDocument(finalPath, poster);
    }

    console.log({ releaseDate, director, posterPath });
    return new Response(JSON.stringify(movieCredits), {
      headers,
    });
  }

  return new Response();
};