import { default as createQueue, PRIORITY } from "../http-queue";
import ssrConfig from "../../../ssr-config";
import { substituteVars } from "../../../utils/format";

const CLIENT_ID = "u0swxz56n4iumc634at1osoqdk31qt";

const TWITCH_AUTH_URL = "https://id.twitch.tv/oauth2";
const AUTHORIZATION_URL =
  `${TWITCH_AUTH_URL}/authorize?client_id=${CLIENT_ID}&redirect_uri=${encodeURIComponent(
    ssrConfig.domain + "/twitch"
  )}&response_type=token` + "&scope=${scopes}&state=${state}";
const VALIDATE_URL = `${TWITCH_AUTH_URL}/validate`;

const TWITCH_API_URL = "https://api.twitch.tv/helix";
const PROFILE_URL = TWITCH_API_URL + "/users?login=${login}";
const VIDEOS_URL =
  TWITCH_API_URL + "/videos?user_id=${userId}&type=${type}&first=100";
const STREAMS_URL = TWITCH_API_URL + "/streams?user_id=${userId}";

export default (options = {}) => {
  const queue = createQueue(options);

  const { fetchJson, fetchHtml, ...queueToReturn } = queue;

  const fetchApi = (
    url,
    accessToken,
    priority = PRIORITY.FG_LOW,
    options = {}
  ) =>
    fetchJson(
      url,
      {
        ...options,
        headers: {
          "Client-ID": CLIENT_ID,
          Authorization: `Bearer ${accessToken}`,
        },
      },
      priority
    );

  const getAuthUrl = (state = "", scopes = "") =>
    substituteVars(AUTHORIZATION_URL, {
      state: encodeURIComponent(state),
      scopes: encodeURIComponent(scopes),
    });

  const validateToken = async (
    accessToken,
    priority = PRIORITY.FG_LOW,
    options = {}
  ) =>
    fetchJson(
      VALIDATE_URL,
      { ...options, headers: { Authorization: `OAuth ${accessToken}` } },
      priority
    );

  const profile = async (
    accessToken,
    login,
    priority = PRIORITY.FG_LOW,
    options = {}
  ) =>
    fetchApi(
      substituteVars(PROFILE_URL, { login: encodeURIComponent(login) }),
      accessToken,
      priority,
      options
    );

  const videos = async (
    accessToken,
    userId,
    type = "archive",
    priority = PRIORITY.FG_LOW,
    options = {}
  ) =>
    fetchApi(
      substituteVars(VIDEOS_URL, {
        userId: encodeURIComponent(userId),
        type: encodeURIComponent(type),
      }),
      accessToken,
      priority,
      options
    );

  const streams = async (
    accessToken,
    userId,
    priority = PRIORITY.FG_LOW,
    options = {}
  ) =>
    fetchApi(
      substituteVars(STREAMS_URL, { userId: encodeURIComponent(userId) }),
      accessToken,
      priority,
      options
    );

  return {
    getAuthUrl,
    validateToken,
    profile,
    videos,
    streams,
    ...queueToReturn,
  };
};