import { getMovie } from "@lib/tmdb.ts";
import { json } from "@lib/helpers.ts";
import { createCache } from "@lib/cache.ts";
import { define } from "../../../utils.ts";

type CachedMovieCredits = {
  lastUpdated: number;
  data: unknown;
};

const CACHE_INTERVAL = 1000 * 60 * 24 * 30;
const cache = createCache<CachedMovieCredits>("movie-credits", {
  expires: CACHE_INTERVAL,
});

export const handler = define.handlers({
  GET: async (ctx) => {
    const id = ctx.params.id;

    if (!id) {
      return new Response("Bad Request", {
        status: 400,
      });
    }

    const cacheId = `/movie/${id}`;

    const cachedResponse = cache.get(cacheId);
    if (
      cachedResponse &&
      Date.now() < (cachedResponse.lastUpdated + CACHE_INTERVAL)
    ) {
      return json(cachedResponse.data);
    }

    const res = await getMovie(+id);

    cache.set(
      cacheId,
      JSON.stringify({
        lastUpdated: Date.now(),
        data: res,
      }),
    );

    return json(res);
  },
});