GroupPresenceState.cs

// Copyright (c) Meta Platforms, Inc. and affiliates.

using System.Collections;
using UnityEngine;
#if !UNITY_EDITOR && !UNITY_STANDALONE_WIN
using System.Threading.Tasks;
using Oculus.Platform;
using Meta.Utilities;
#endif

namespace Meta.Multiplayer.Core
{
    /// <summary>
    /// Keeps track of the current group presence state and uses the GroupPresence API from Oculus Platform.
    /// Usage: Set the group presence of the player
    /// https://developer.oculus.com/documentation/unity/ps-group-presence-overview/
    /// </summary>
    public class GroupPresenceState
    {
        public string Destination { get; private set; }
        public string LobbySessionID { get; private set; }
        public string MatchSessionID { get; private set; }
        public bool IsJoinable { get; private set; }

        public IEnumerator Set(string dest, string lobbyID, string matchID, bool joinable)
        {
#if !UNITY_EDITOR && !UNITY_STANDALONE_WIN
            return Impl().ToRoutine();
            
            async Task Impl()
            {
                var groupPresenceOptions = new GroupPresenceOptions();
                if (dest is not null)
                    groupPresenceOptions.SetDestinationApiName(dest);
                if (lobbyID is not null)
                    groupPresenceOptions.SetLobbySessionId(lobbyID);
                if (matchID is not null)
                    groupPresenceOptions.SetMatchSessionId(matchID);
                groupPresenceOptions.SetIsJoinable(joinable);

                // temporary workaround until bug fix
                // GroupPresence.Set() can sometimes fail. Wait until it is done, and if it
                // failed, try again.
                while (true)
                {
                    Debug.Log("Setting Group Presence...");

                    var request = lobbyID is null ?
                        GroupPresence.Clear() :
                        GroupPresence.Set(groupPresenceOptions);
                    var message = await request.Gen();

                    if (message.IsError)
                    {
                        LogError("Failed to setup Group Presence", message.GetError());
                        continue;
                    }

                    OnSetComplete();
                    break;
                }
            }
#else
            OnSetComplete();
            yield break;
#endif

            void OnSetComplete()
            {
                Destination = dest;
                LobbySessionID = lobbyID;
                MatchSessionID = matchID;
                IsJoinable = joinable;

                Debug.Log("Group Presence set successfully");
                Print();
            }
        }

        public void Print()
        {
            Debug.Log(@$"------GROUP PRESENCE STATE------
Destination:      {Destination}
Lobby Session ID: {LobbySessionID}
Match Session ID: {MatchSessionID}
Joinable?:        {IsJoinable}
--------------------------------");
        }

        private void LogError(string message, Oculus.Platform.Models.Error error)
        {
            Debug.LogError(@"{message}
ERROR MESSAGE:   {error.Message}
ERROR CODE:      {error.Code}
ERROR HTTP CODE: {error.HttpCode}");
        }
    }
}