import { SessionStore, UserStore } from "./db/schemas.mjs";

export const syncAllSessions = async () => {
  const sessions = await SessionStore.find();
  await Promise.all([...sessions].map(syncSession));
};

export const syncSession = async sessionStore => {
  if (sessionStore.clients.length === 0) return;
  const hostStore = await UserStore.findById(sessionStore.host._id);
  const host = await hostStore.spotify.local;
  const hostCP = await host.player.getCurrentlyPlaying("track");
  const hostCPDate = new Date();
  await Promise.all([...sessionStore.clients].map(async client => {
    const clientStore = await UserStore.findById(client._id);
    const clientLocal = await clientStore.spotify.local;
    const clientCP = await clientLocal.player.getCurrentlyPlaying("track");
    if (clientCP?.isPlaying && !hostCP?.item?.uri || !hostCP?.isPlaying) {
      await clientLocal.player.pause();
    } else if (hostCP?.isPlaying && clientCP?.item?.id !== hostCP?.item?.id || !clientCP?.isPlaying) {
      await clientLocal.player.play({
        uris: [hostCP?.item?.uri],
        position: hostCP.progress + (new Date - hostCPDate),
      });
    } else if (clientCP?.isPlaying && hostCP?.isPlaying && Math.abs(clientCP.progress - hostCP.progress + (new Date - hostCPDate)) > 500) {
      await clientLocal.player.seek(hostCP.progress + (new Date - hostCPDate));
    }
  }));
};