source: binary-improvements/7dtd-server-fixes/src/API.cs@ 506

using System.Collections.Generic;
using AllocsFixes.PersistentData;
using JetBrains.Annotations;
using Platform.Steam;

namespace AllocsFixes {
        [UsedImplicitly]
        public class API : IModApi {
                public void InitMod (Mod _modInstance) {
                        ModEvents.GameStartDone.RegisterHandler (GameAwake);
                        ModEvents.SavePlayerData.RegisterHandler (SavePlayerData);
                        ModEvents.PlayerSpawning.RegisterHandler (PlayerSpawning);
                        ModEvents.PlayerDisconnected.RegisterHandler (PlayerDisconnected);
                        ModEvents.PlayerSpawnedInWorld.RegisterHandler (PlayerSpawned);
                        ModEvents.ChatMessage.RegisterHandler (ChatMessage);
                }

                private static void GameAwake (ref ModEvents.SGameStartDoneData _data) {
                        PersistentContainer.Load ();
                }

                private static void SavePlayerData (ref ModEvents.SSavePlayerDataData _data) {
                        PersistentContainer.Instance.Players.GetOrCreate (_data.ClientInfo.InternalId, _data.ClientInfo.PlatformId, _data.ClientInfo.CrossplatformId).Update (_data.ClientInfo, _data.PlayerDataFile);
                }

                private static void PlayerSpawning (ref ModEvents.SPlayerSpawningData _data) {
                        string owner = null;
                        if (_data.ClientInfo.PlatformId is UserIdentifierSteam identifierSteam) {
                                owner = identifierSteam.OwnerId.ToString ();
                        }

                        Log.Out (
                                $"Player connected, entityid={_data.ClientInfo.entityId}, name={_data.ClientInfo.playerName}, pltfmid={_data.ClientInfo.PlatformId?.CombinedString ?? "<unknown>"}, crossid={_data.ClientInfo.CrossplatformId?.CombinedString ?? "<unknown/none>"}, steamOwner={owner ?? "<unknown/none>"}, ip={_data.ClientInfo.ip}"
                        );
                }

                private static void PlayerDisconnected (ref ModEvents.SPlayerDisconnectedData _data) {
                        Player p = PersistentContainer.Instance.Players.GetByInternalId (_data.ClientInfo.InternalId);
                        if (p != null) {
                                p.SetOffline ();
                        } else {
                                Log.Out ("Disconnected player not found in client list...");
                        }

                        PersistentContainer.Instance.Save ();
                }

                private static void PlayerSpawned (ref ModEvents.SPlayerSpawnedInWorldData _data) {
                        if (_data.ClientInfo == null) {
                                return;
                        }
                        
                        PersistentContainer.Instance.Players.GetOrCreate (_data.ClientInfo.InternalId, _data.ClientInfo.PlatformId, _data.ClientInfo.CrossplatformId).SetOnline (_data.ClientInfo);
                        PersistentContainer.Instance.Save ();
                }

                private const string ANSWER = "     [ff0000]I[-] [ff7f00]W[-][ffff00]A[-][80ff00]S[-] [00ffff]H[-][0080ff]E[-][0000ff]R[-][8b00ff]E[-]";

                private static ModEvents.EModEventResult ChatMessage (ref ModEvents.SChatMessageData _data) {
                        if (string.IsNullOrEmpty (_data.Message) || !_data.Message.EqualsCaseInsensitive ("/alloc")) {
                                return ModEvents.EModEventResult.Continue;
                        }

                        if (_data.ClientInfo != null) {
                                Log.Out ($"Sent chat hook reply to {_data.ClientInfo.InternalId}");
                                _data.ClientInfo.SendPackage (NetPackageManager.GetPackage<NetPackageChat> ().Setup (EChatType.Whisper, -1, ANSWER,  null, EMessageSender.Server, GeneratedTextManager.BbCodeSupportMode.Supported));
                        } else {
                                Log.Error ($"ChatHookExample: Argument _cInfo null on message: {_data.Message}");
                        }

                        return ModEvents.EModEventResult.StopHandlersAndVanilla;
                }
        }
}