import fetch from "node-fetch";
import assert from "assert";
import slugify from "slugify";
const base_host = "http://localhost:5001";

export const get = async (url) => {
  assert(url && url[0] === "/", `url must start with / you have ${url}`);

  const target = `${base_host}${url}`;
  const res = await fetch(target);

  if(res.status === 200) {
    return await res.json();
  } else {
    console.error(`!!! ERROR: Failed getting ${target}`, res.status, await res.text());
    return [];
  }
}

export const listing = async () => {
  const listing = await get("/api/livestream");
  return listing.sort((a,b) => b.id - a.id);
}

export const slug = (stream, with_id=true) => {
  if(with_id) {
    return slugify(`${stream.id}-${stream.title}`, { lower: true, strict: true, trim: true});
  } else {
    return slugify(`${stream.title}`, { lower: true, strict: true, trim: true});
  }
}

export const stream = async (id) => {
  const stream = await get(`/api/livestream?livestream_id=${id}`);
  stream.slug = slug(stream);
  return stream;
}

export const load_paths = async() => {
    const streams = await listing();
    const result = [];

    for(let i of streams) {
      // stream.slug is setup in rendered/pages/live/index.js
      result.push(await stream(i.id));
    }

    return result;
}

export default {
  listing, stream, load_paths, get, slug
}