using UnityEngine;
using System.Collections.Generic;
using UnityEngine.UI;
using System.Collections;
using System;



namespace Client
{
    public class ClientHandle : MonoBehaviour
    {
        public static ClientHandle instance;

        private delegate void NetPackets(byte[] data);
        private static Dictionary<int, NetPackets> _packets;

        [Header("Scripts")]
        public MenuManager menuManager;


        [Header("Player Prefab")]
        public GameObject _playerPref;

        public GameObject Char;

        public Button button;

        public static GameObject PlayerList;

        public void InitializeNetworkPackages()
        {
            //Debug.Log("Initialize Network Packages");
            _packets = new Dictionary<int, NetPackets>
            {
                //LIST OF SERVER PACKAGES
                { (int)Packets.Message, HandleMessage },
                { (int)Packets.Spawn, SpawnCharacter },
                { (int)Packets.Login_Accept, HandleLoginSucces },
                { (int)Packets.Movement, HandleClientMovement },
                { (int)Packets.TEST, HandleTEST },

            };
        }

        public void Awake()
        {
            instance = this;
            InitializeNetworkPackages();
            PlayerList = new GameObject("PlayerList");
        }

        public void HandleSocketData(byte[] data)
        {
            Buffer buffer = new Buffer();
            NetPackets _packet;
            buffer.WriteBytes(data);
            int packet = buffer.ReadInteger();
            buffer.Dispose();

            if (packet == 0)
                return;

            if (_packets.TryGetValue(packet, out _packet))
            {
                _packet.Invoke(data);
            }
        }

        public void HandleMessage(byte[] data)
        {
            Buffer buffer = new Buffer();
            buffer.WriteBytes(data);
            int packet = buffer.ReadInteger();
            string AlertMsg = buffer.ReadString();
            Debug.Log(AlertMsg);

            if (packet == 0)
                return;
        }

        public void HandleLoginSucces(byte[] data)
        {
            Buffer buffer = new Buffer();
            buffer.WriteBytes(data);
            int packet = buffer.ReadInteger();
            string msg = buffer.ReadString();
            Debug.Log(msg);
            MenuManager.instance.ChangeMenu(2);

            if (packet == 0)
                return;
        }

        public void HandleClientMovement(byte[] data)
        {
            Buffer buffer = new Buffer();
            buffer.WriteBytes(data);
            int packet = buffer.ReadInteger();

            // Reciving Player Information
            int index = buffer.ReadInteger();

            // Reciving Player Position
            float x = buffer.ReadFloat();
            float y = buffer.ReadFloat();
            float z = buffer.ReadFloat();

            // Reciving Player Rotation
            float rotX = buffer.ReadFloat();
            float rotY = buffer.ReadFloat();
            float rotZ = buffer.ReadFloat();
            float rotW = buffer.ReadFloat();

            // Find Player and move it.
            GameObject _netPlayer;
            if (_netPlayer = GameObject.Find("Player (" + index + ")"))
            {
                _netPlayer.GetComponent<Transform>().position = new Vector3(x, y, z);
                _netPlayer.GetComponent<Transform>().rotation = new Quaternion(rotX, rotY, rotZ, rotW);
            }

            if (packet == 0) return;
        }



        //public void HandleTEST(byte[] data)
        //{
        //        int i = 0;

        //        Buffer buffer = new Buffer();
        //        buffer.WriteBytes(data);
        //        int packet = buffer.ReadInteger();
        //        Character[] charArray = new Character[5];
        //        for (int j = 0; j < 5; j++)
        //        {
        //            charArray[j] = new Character();
        //           // charArray[j].ID = 0;
        //        }
        //        while (buffer.Length() > 0)
        //        {
        //            Debug.Log("Aye");
        //            charArray[i].ID = buffer.ReadInteger();
        //            charArray[i].Name = buffer.ReadString();
        //            i++;
        //        }

        //        for (int j = 0; j < 5; j++)
        //        {
        //            if (charArray[j].ID > 0)
        //            {
        //            Debug.Log("ID: " + charArray[j].ID + " Name: " + charArray[j].Name);
        //            }
        //            else
        //            {
        //                Debug.Log("No characters");
        //            }

        //        }

        //        if (packet == 0) return;

        //    }


        public void HandleTEST(byte[] data)
        {
            int i = 0;

            Buffer buffer = new Buffer();
            buffer.WriteBytes(data);
            int packet = buffer.ReadInteger();
            Character[] charArray = new Character[5];
            for (int j = 0; j < 5; j++)
            {
                charArray[j] = new Character();
                charArray[j].ID = 0;
            }

            Debug.Log("Before While");
            while (buffer.Length() > 0)
            {
                Debug.Log("In While" + buffer.GetReadPos());
                charArray[i].ID = buffer.ReadInteger();
                charArray[i].Name = buffer.ReadString();
                i++;
                Debug.Log("End While");
            }
            Debug.Log("After While");

            for (int j = 0; j < 5; j++)
            {
                if (charArray[j].ID >= 0)
                {
                    Debug.Log("ID: " + charArray[j].ID + " Name: " + charArray[j].Name);
                }
                else
                {
                    Debug.Log("No characters");
                }

            }

            if (packet == 0) return;

        }

        public void SpawnCharacter(byte[] data)
        {
            Buffer buffer = new Buffer();
            buffer.WriteBytes(data);
            int packet = buffer.ReadInteger();
            int PlayerID = buffer.ReadInteger();
            int CharID = buffer.ReadInteger();

            if (Globals.Client_ID <= 1) { Globals.Client_ID = PlayerID; }

            // MENU WINDOW DOWN
            MenuManager.instance.ChangeMenu(4);

            Character.character[PlayerID].ID = CharID;
            //General.instance.SetPlayerX(PlayerID, buffer.ReadFloat());
            //General.instance.SetPlayerY(PlayerID, buffer.ReadFloat());
            //General.instance.SetPlayerZ(PlayerID, buffer.ReadFloat());
            General.instance.SetVector3(PlayerID, buffer.ReadFloat(), buffer.ReadFloat(), buffer.ReadFloat());

            Character.character[PlayerID].Name = buffer.ReadString();

            PlayerInfo.instance.Name.text = Character.character[PlayerID].Name;

            Spawn(PlayerID);

            if (packet == 0) return;
        }


        void Spawn(int PlayerID)
        {
            // Instantiate the other players on their position.
            _playerPref = Instantiate(_playerPref, new Vector3(General.instance.GetPlayerX(PlayerID), General.instance.GetPlayerY(PlayerID), General.instance.GetPlayerZ(PlayerID)), Quaternion.identity);
            _playerPref.GetComponent<NetPlayer>().Index = PlayerID;
            _playerPref.name = "Player (" + PlayerID + ")";
            _playerPref.transform.parent = GameObject.Find("PlayerList").transform;
        }

    }

}