OnSamSiteModeToggle

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

namespace Oxide.Plugins
{
    [Info("Sam Site Mode Lock", "RustPluginGenerator", "1.0.0")]
    [Description("Restricts SAM site mode toggles inside configured zones and reports blocked attempts.")]
    public class SamSiteModeLock : RustPlugin
    {
        private const string PermBypass = "samsitemodelock.bypass";

        private PluginConfig config;
        private readonly Dictionary<ulong, int> blockedCounts = new Dictionary<ulong, int>();

        private class PluginConfig
        {
            [JsonProperty("Restricted zones")]
            public List<Zone> Zones = new List<Zone>
            {
                new Zone { X = 0f, Y = 0f, Z = 0f, Radius = 50f, ForceVehicleMode = true, Message = "SAM sites in this area cannot use defender mode." }
            };
        }

        private class Zone
        {
            [JsonProperty("X")]
            public float X;
            [JsonProperty("Y")]
            public float Y;
            [JsonProperty("Z")]
            public float Z;
            [JsonProperty("Radius")]
            public float Radius;
            [JsonProperty("Force vehicle mode")]
            public bool ForceVehicleMode;
            [JsonProperty("Blocked message")]
            public string Message;
        }

        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>
            {
                ["Blocked"] = "You cannot change the SAM site mode here: {0}",
                ["Info"] = "Restricted zones: {0}",
                ["Report"] = "Player {0} had {1} blocked SAM site mode changes."
            }, 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 object OnSamSiteModeToggle(SamSite samSite, BasePlayer player, bool flag)
        {
            if (samSite == null || player == null) return null;
            if (!flag) return null;
            if (permission.UserHasPermission(player.UserIDString, PermBypass)) return null;

            Vector3 pos = samSite.transform.position;
            string reason = null;
            foreach (Zone zone in config.Zones)
            {
                if (!zone.ForceVehicleMode) continue;
                Vector3 center = new Vector3(zone.X, zone.Y, zone.Z);
                if (Vector3.Distance(pos, center) <= zone.Radius)
                {
                    reason = zone.Message;
                    break;
                }
            }

            if (reason == null) return null;

            int count;
            blockedCounts.TryGetValue(player.userID.Get(), out count);
            blockedCounts[player.userID.Get()] = count + 1;

            player.ChatMessage(Msg("Blocked", player.UserIDString, reason));
            return true;
        }

        [ConsoleCommand("samlock.info")]
        private void CmdInfo(ConsoleSystem.Arg arg)
        {
            if (arg == null || !arg.IsAdmin) return;

            List<string> lines = new List<string>();
            foreach (Zone zone in config.Zones)
            {
                lines.Add(string.Format("({0:F0},{1:F0},{2:F0}) r={3:F0} vehicle={4}", zone.X, zone.Y, zone.Z, zone.Radius, zone.ForceVehicleMode));
            }
            arg.ReplyWith(Msg("Info", null, lines.Count > 0 ? string.Join("; ", lines) : "none"));
        }

        [ConsoleCommand("samlock.report")]
        private void CmdReport(ConsoleSystem.Arg arg)
        {
            if (arg == null || !arg.IsAdmin) return;

            foreach (KeyValuePair<ulong, int> entry in blockedCounts)
            {
                arg.ReplyWith(Msg("Report", null, entry.Key, entry.Value));
            }
        }

        private void Unload()
        {
            blockedCounts.Clear();
        }
    }
}