using System;
using System.Reflection;
using GameNetworkLayer.Shared;
using HarmonyLib;
using Svelto.Context;
using Svelto.ECS;

namespace CLre_server.API.MainServer
{
    public class UserVerification
    {
        public static UserVerification Instance { get; internal set; }

        private delegate void DisconnectPlayer_VerificationFailedProto(int playerId, string error);
        private delegate void DisconnectPlayerProto(int playerId, NetworkDispatcherCode code);

        private readonly DisconnectPlayer_VerificationFailedProto _disconnectPlayerVerificationFailed;
        private readonly DisconnectPlayerProto _disconnectPlayer;

        // This doesn't seem to do actually generate a popup, but it will stop the player from loading in
        /*public void DisconnectPlayer_VerificationFailed(int playerId, string error)
        {
            _disconnectPlayerVerificationFailed(playerId, error);
        }*/

        public void DisconnectPlayer(int playerId, NetworkDispatcherCode code = NetworkDispatcherCode.ModVerificationFail)
        {
            _disconnectPlayer(playerId, code);
        }

        internal UserVerification(IQueryingEntitiesEngine uvs)
        {
            Type uvsType = AccessTools.TypeByName("User.Server.UserVerificationServer");
            _disconnectPlayerVerificationFailed =
                Utility.Reflection.MethodAsDelegate<DisconnectPlayer_VerificationFailedProto>(uvsType,
                    "DisconnectPlayer_VerificationFailed",
                    //parameters: new [] {typeof(int), typeof(string)},
                    instance: uvs);
            
            _disconnectPlayer =
                Utility.Reflection.MethodAsDelegate<DisconnectPlayerProto>(uvsType, "DisconnectPlayer", instance: uvs);
        }
    }

    // This seems to think that __instance is always simply a System.Object (caused by Harmony?), which doesn't work
    /*[HarmonyPatch]
    class UserVerificationServer_Constructor_Patch
    {

        private static IQueryingEntitiesEngine uvs = null;

        [HarmonyPrefix]
        public static void BeforeMethodCall()
        {
        }
        
        [HarmonyPostfix]
        public static void AfterMethodCall(IQueryingEntitiesEngine __instance)
        {
            uvs = __instance;
            UserVerification.Instance = new UserVerification(__instance);
        }
        
        [HarmonyTargetMethod]
        public static MethodBase Target()
        {
            return AccessTools.Constructor(AccessTools.TypeByName("User.Server.UserVerificationServer"));
        }
    }*/
    
    [HarmonyPatch]
    class MainGameServer_CreatePlayerDisconnectionSequence_Patch
    {

        private static IQueryingEntitiesEngine uvs = null;

        [HarmonyPrefix]
        public static void BeforeMethodCall()
        {
        }
        
        [HarmonyPostfix]
        public static void AfterMethodCall(IQueryingEntitiesEngine userVerificationEng)
        {
            uvs = userVerificationEng;
            UserVerification.Instance = new UserVerification(userVerificationEng);
        }
        
        [HarmonyTargetMethod]
        public static MethodBase Target()
        {
            return AccessTools.Method("GameServer.GameFramework.MainGameServer:CreatePlayerDisconnectionSequence");
        }
    }
}