//Shady
using Fusion;
using System;
using UnityEngine;
using Fusion.Sockets;
using Shady.Core.Singletons;
using Sirenix.OdinInspector;
using DedicatedServer.Utils;
using System.Threading.Tasks;
using System.Collections.Generic;
using UnityEngine.SceneManagement;
using ReadOnly = Sirenix.OdinInspector.ReadOnlyAttribute;
using Random = UnityEngine.Random;

public class GameManager : Singleton<GameManager>
{
    //===================================================
    // FIELDS
    //===================================================
    [Title("GAME MANAGER", titleAlignment: TitleAlignments.Centered)]
    [DisplayAsString]
    [SerializeField] string _sessionName = "SESSION_NAME";
    [ReadOnly]
    [SerializeField] UserData _userData;
    [Space]
    [SerializeField] NetworkRunner _runnerPrefab = null;
    [ReadOnly]
    [SerializeField] NetworkRunner _networkRunner = null;
    [ReadOnly]
    [SerializeField] NetworkSceneManagerDefault _sceneManager = null;

    [HideInInspector]
    public List<TWS_AppliedCustomizationsData> currentAppliedCustomizations;

    //===================================================
    // PROPERTIES
    //===================================================
    public string SessionName  => _sessionName;
    public string UserName{get => _userData.UserName; set => _userData.UserName = value;}
    public Gender Gender  {get => _userData.Gender;   set => _userData.Gender   = value;}

    //===================================================
    // METHODS
    //===================================================
    internal override void Init()
    {
        base.Init();

        if(InstanceNotSelf)
            return;

        FadeSystem.Instance.Splash();
        QualitySettings.vSyncCount  = 0;
        Application.targetFrameRate = 60;

        if(GameData.Instance.DebugConsole)
        {
            GameObject obj = Resources.Load<GameObject>("IngameDebugConsole");
            if(obj)
                GameObject.Instantiate(obj);
        }//if end

        Splash();
    }//Init() end

    public void Splash()
    {
        AudioManager.Instance.StartGame();
        UI_Manager.Instance.OpenPanel<Panel_Splash>();
        FadeSystem.Instance.FadeOut();
    }//Splash() end

    public async void CreateUser(string userName)
    {
        SaveData.Instance.UserData.UserName = userName;
        SaveData.Instance.UserData.Gender   = Gender;
        SaveSystem.SaveProgress();
        InitRunner();
        // switch(await SaveSystem.CreateUserRequest())
        // {
        //     case CreateUserStatus.EmptyUserName:
        //         GameLog.ShowMessage("UserName Empty!");
        //     break;
        //     case CreateUserStatus.Success:
        //         InitRunner();
        //     break;
        //     case CreateUserStatus.Exists:
        //         GameLog.ShowMessage("Username already exists!");
        //     break;
        //     case CreateUserStatus.RequestFailed:
        //         GameLog.ShowWarning("Request Failed to Create New User!");
        //     break;
        // }//switch end
        
    }//CreateUser() end

    public async void InitRunner()
    {
        _networkRunner = Instantiate(_runnerPrefab);
        _sceneManager  = _networkRunner.GetComponent<NetworkSceneManagerDefault>();
        StartGameResult result = await _networkRunner.JoinSessionLobby(SessionLobby.ClientServer);

        if(result.Ok)
        {
            // FadeSystem.Instance.Fade(()=>UI_Manager.Instance.OpenPanel<Panel_CharacterCreationMale>());
            StartSession("Zone", SaveData.Instance.UserData.UserName);
            // if(SaveData.Instance.HasID is false)
            // else
            // {
            //     // switch(await SaveSystem.GetUserRequest())
            //     // {
            //     //     case GetUserStatus.Exists:
            //     //         StartSession("Zone", SaveData.Instance.UserData.UserName);
            //     //     break;
            //     //     case GetUserStatus.NotExists:
            //     //         GameLog.ShowMessage("Currently saved user does not exist on server!");
            //     //     break;
            //     //     case GetUserStatus.RequestFailed:
            //     //         GameLog.ShowWarning("Request Failed to Get User!");
            //     //     break;
            //     // }//switch end
            // }//else end
        }//if end

    }//InitRunner() end

    private void StartSession(string sessionName, string userName)
    {
        UserName     = userName;
        _sessionName = sessionName;
        Gender       = SaveData.Instance.UserData.Gender;
        FadeSystem.Instance.FadeIn(StartGame);
    }//StartSession() end

    private async void StartGame()
    {
        _networkRunner.ProvideInput = true;

        // Create the NetworkSceneInfo from the current scene
        SceneRef sceneRef = SceneRef.FromIndex(SceneManager.GetActiveScene().buildIndex);
        NetworkSceneInfo sceneInfo = new();
        if (sceneRef.IsValid)
            sceneInfo.AddSceneRef(sceneRef, LoadSceneMode.Additive);

        StartGameArgs startGameArgs = new()
        {
            SessionName   = _sessionName,
            GameMode      = GameMode.Client,
            Address       = NetAddress.Any(),
            PlayerCount   = 5,
            OnGameStarted = OnGameStarted(),
            Scene         = sceneRef.IsValid ? sceneRef : null,
            SceneManager  = _sceneManager,
            // CustomPhotonAppSettings = appSettings,
        };

        StartGameResult result = await _networkRunner.StartGame(startGameArgs);

        if(result.Ok)
        {
            GameLog.ShowMessage($"Game started successfully. Requesting server to spawn Local Player.");
            if(_networkRunner.IsRunning)
            {
                PlayerData playerData = new()
                {
                    gender   = SaveData.Instance.UserData.Gender,
                    position = new Vector3(Random.Range(-8, 8), 0f, Random.Range(-8, 8)),
                    rotation = Quaternion.Euler(0f, 90f, 0f),
                };
                
                var key = ReliableKey.FromInts(95, 0, 0, 0);
                _networkRunner.SendReliableDataToServer(key, playerData.Serialize());
                await Task.Delay(1000);
                FadeSystem.Instance.FadeOut();
                // GameLog.ShowMessage(PhotonAppSettings.Global.AppSettings.BestRegionSummaryFromStorage);
            }//if end
        }//if end
    }//InitializeNetworkRunner() end

    // private Action<NetworkRunner> RunnerInitialized()
    Action<NetworkRunner> OnGameStarted()
    {
        GameLog.ShowMessage($"Starting Client NetworkRunner on Session: {_sessionName}");
        return null;
    }//RunnerInitialized() end

    // public static string GetRandomName()
    // {
    //     int playerNumber = UnityEngine.Random.Range(0, 1000);
    //     return $"Player {playerNumber.ToString("0000")}";
    // }//GetRandomName() end

    public void Shutdown()
    {
        _networkRunner.Shutdown();
        FadeSystem.Instance.FadeIn(async ()=>
            {
                SceneManager.LoadScene((int)SceneDefs.MENU, LoadSceneMode.Single);
                await Task.Delay(100);
                Splash();
            });
    }//Shutdown() end

    public void GoOffline()
    {
        _networkRunner.Shutdown();
        FadeSystem.Instance.FadeIn(async ()=>
            {
                SceneManager.LoadScene((int)SceneDefs.OFFLINE, LoadSceneMode.Single);
                await Task.Delay(3000);
                FadeSystem.Instance.FadeOut();
            });
    }//GoOffline() end

    public void GoOnline()
    {
        FadeSystem.Instance.FadeIn(async ()=>
        {
            SceneManager.LoadScene((int)SceneDefs.MENU, LoadSceneMode.Single);
            await Task.Delay(1000);
            InitRunner();
            FadeSystem.Instance.FadeOut();
        });
    }//GoOnline() end

}//class end