OnTeamKick

using System;
using System.Collections.Generic;
using Newtonsoft.Json;
using Oxide.Core;
using UnityEngine;

namespace Oxide.Plugins
{
    [Info("Team Kick Shield", "RustPluginGenerator", "1.0.0")]
    [Description("Blocks team kicks of members who joined very recently and enforces a leader kick cooldown.")]
    public class TeamKickShield : RustPlugin
    {
        private const string PermBypass = "teamkickshield.bypass";

        private PluginConfig config;
        private readonly Dictionary<ulong, double> joinedAt = new Dictionary<ulong, double>();
        private readonly Dictionary<ulong, double> lastKick = new Dictionary<ulong, double>();

        private class PluginConfig
        {
            [JsonProperty("Protection seconds after joining")]
            public float ProtectionSeconds = 120f;

            [JsonProperty("Seconds between kicks per leader")]
            public float KickCooldownSeconds = 5f;
        }

        protected override void LoadDefaultConfig() => config = new PluginConfig();

        protected override void LoadConfig()
        {
            base.LoadConfig();
            try
            {
                config = Config.ReadObject<PluginConfig>();
                if (config == null) throw new Exception();
            }
            catch
            {
                PrintWarning("Configuration file is invalid, using defaults");
                LoadDefaultConfig();
            }
            SaveConfig();
        }

        protected override void SaveConfig() => Config.WriteObject(config);

        protected override void LoadDefaultMessages()
        {
            lang.RegisterMessages(new Dictionary<string, string>
            {
                ["Protected"] = "{0} joined {1} seconds ago and cannot be kicked yet.",
                ["Cooldown"] = "You can kick another member in {0} seconds.",
                ["Kicked"] = "{0} was removed from your team."
            }, this);
        }

        private string Msg(string key, string userId = null, params object[] args) =>
            string.Format(lang.GetMessage(key, this, userId), args);

        private void Init()
        {
            permission.RegisterPermission(PermBypass, this);
        }

        private void OnTeamAcceptInvite(RelationshipManager.PlayerTeam team, BasePlayer player)
        {
            if (player != null) joinedAt[player.userID.Get()] = UnityEngine.Time.realtimeSinceStartup;
        }

        private void OnTeamCreated(BasePlayer player)
        {
            if (player != null) joinedAt[player.userID.Get()] = UnityEngine.Time.realtimeSinceStartup;
        }

        private void OnTeamLeave(RelationshipManager.PlayerTeam team, BasePlayer player)
        {
            if (player != null) joinedAt.Remove(player.userID.Get());
        }

        private void OnTeamDisbanded(RelationshipManager.PlayerTeam team)
        {
            if (team?.members == null) return;
            foreach (ulong id in team.members) joinedAt.Remove(id);
        }

        private object OnTeamKick(RelationshipManager.PlayerTeam playerTeam, BasePlayer player, ulong targetSteamId)
        {
            if (playerTeam == null || player == null || player.IsNpc) return null;
            if (permission.UserHasPermission(player.UserIDString, PermBypass)) return null;

            double now = UnityEngine.Time.realtimeSinceStartup;

            double last;
            if (config.KickCooldownSeconds > 0f && lastKick.TryGetValue(player.userID.Get(), out last)
                && now - last < config.KickCooldownSeconds)
            {
                player.ChatMessage(Msg("Cooldown", player.UserIDString, Mathf.CeilToInt((float)(config.KickCooldownSeconds - (now - last)))));
                return false;
            }

            double joined;
            if (config.ProtectionSeconds > 0f && joinedAt.TryGetValue(targetSteamId, out joined))
            {
                double age = now - joined;
                if (age < config.ProtectionSeconds)
                {
                    string name = FindName(targetSteamId);
                    player.ChatMessage(Msg("Protected", player.UserIDString, name, Mathf.CeilToInt((float)age)));
                    return false;
                }
            }

            lastKick[player.userID.Get()] = now;
            joinedAt.Remove(targetSteamId);
            player.ChatMessage(Msg("Kicked", player.UserIDString, FindName(targetSteamId)));
            return null;
        }

        private string FindName(ulong steamId)
        {
            BasePlayer target = BasePlayer.FindByID(steamId);
            return target != null ? target.displayName : steamId.ToString();
        }
    }
}