BABA_YAGA/Assets/Scripts/UI/LobbyController.cs

using UnityEngine;
using UnityEngine.UIElements;
using System.Collections.Generic;
using System.Threading.Tasks;
using Fusion;
using System.Linq;

namespace Hallucinate.UI
{
    public class LobbyController : BaseUIController
    {
        private VisualTreeAsset _roomItemTemplate;
        private PlayerDataManager _playerDataManager;

        private VisualElement _joinContainer, _createContainer, _loungeContainer, _passOverlay;
        private TextField _roomIDInput, _roomNameInput, _roomPassInput;
        private Toggle _passToggle;
        private Label _createErrorLabel;
        private Button _confirmCreateBtn;
        private ScrollView _roomList;
        private TextField _joinPassInput;
        private Label _joinPassError;
        private SessionInfo _selectedSession;
        private Label _loungeRoomName;
        private Button _readyBtn, _startBtn;
        private Label _hostNameLabel, _hostStatusLabel;
        private VisualElement _hostChatBox;
        private Label _hostChatMessage;
        private Label _guestNameLabel, _guestStatusLabel;
        private VisualElement _guestChatBox;
        private Label _guestChatMessage;
        private TextField _chatInput;

        public override void Initialize(VisualElement uxmlRoot, UIManager manager)
        {
            base.Initialize(uxmlRoot, manager);
            _joinContainer = root.Q<VisualElement>("JoinContainer");
            _createContainer = root.Q<VisualElement>("CreateContainer");
            _loungeContainer = root.Q<VisualElement>("LoungeContainer");
            _passOverlay = root.Q<VisualElement>("PasswordOverlay");
            _roomIDInput = root.Q<TextField>("RoomIDInput");
            _roomNameInput = root.Q<TextField>("RoomNameInput");
            _roomPassInput = root.Q<TextField>("RoomPassInput");
            _passToggle = root.Q<Toggle>("PassToggle");
            _createErrorLabel = root.Q<Label>("CreateErrorLabel");
            _roomList = root.Q<ScrollView>("RoomList");
            _joinPassInput = root.Q<TextField>("JoinPassInput");
            _joinPassError = root.Q<Label>("JoinPassError");
            _loungeRoomName = root.Q<Label>("LoungeRoomName");
            _readyBtn = root.Q<Button>("ReadyBtn");
            _startBtn = root.Q<Button>("StartBtn");
            _hostNameLabel = root.Q<Label>("HostName");
            _hostStatusLabel = root.Q<Label>("HostReadyStatus");
            _hostChatBox = root.Q<VisualElement>("HostChatBox");
            _hostChatMessage = root.Q<Label>("HostChatMessage");
            _guestNameLabel = root.Q<Label>("GuestName");
            _guestStatusLabel = root.Q<Label>("GuestReadyStatus");
            _guestChatBox = root.Q<VisualElement>("GuestChatBox");
            _guestChatMessage = root.Q<Label>("GuestChatMessage");
            _chatInput = root.Q<TextField>("ChatInput");

            root.Q<Button>("GoToCreateBtn").clicked += ShowCreate;
            root.Q<Button>("CancelCreateBtn").clicked += ShowJoin;
            root.Q<Button>("BackToMenuBtn").clicked += async () => await uiManager.Pop();
            _confirmCreateBtn = root.Q<Button>("ConfirmCreateBtn");
            if (_confirmCreateBtn != null) _confirmCreateBtn.clicked += OnCreateRoomClicked;
            root.Q<Button>("ConfirmJoinBtn").clicked += OnConfirmPasswordClicked;
            root.Q<Button>("ClosePassBtn").clicked += () => { if(_passOverlay != null) _passOverlay.style.display = DisplayStyle.None; };
            root.Q<Button>("LeaveLoungeBtn").clicked += OnLeaveLoungeClicked;

            if (_readyBtn != null) _readyBtn.clicked += OnReadyClicked;
            if (_startBtn != null) _startBtn.clicked += OnStartClicked;
            if (_passToggle != null) _passToggle.RegisterValueChangedCallback(evt => { if (_roomPassInput != null) _roomPassInput.style.display = evt.newValue ? DisplayStyle.Flex : DisplayStyle.None; });
            if (_chatInput != null) _chatInput.RegisterCallback<KeyDownEvent>(OnChatKeyDown, TrickleDown.TrickleDown);
            if (LocalizationManager.Instance != null) { LocalizationManager.Instance.OnLanguageChanged += ApplyLocalization; ApplyLocalization(); }
            if (BasicSpawner.Instance != null) RegisterSpawnerEvents();
            else Invoke(nameof(RegisterSpawnerEvents), 0.1f);
        }

        private void RegisterSpawnerEvents()
        {
            if (BasicSpawner.Instance == null) return;
            BasicSpawner.Instance.OnSessionListUpdatedEvent += UpdateRoomList;
            BasicSpawner.Instance.OnJoinFailedEvent += () => { if(_joinPassError != null) _joinPassError.style.display = DisplayStyle.Flex; };
        }

        private void OnChatKeyDown(KeyDownEvent evt)
        {
            if (evt.keyCode == KeyCode.Return || evt.keyCode == KeyCode.KeypadEnter)
            {
                evt.StopImmediatePropagation();
                evt.PreventDefault();
                string msg = _chatInput.value.Trim();
                if (!string.IsNullOrEmpty(msg) && PlayerDataManager.Instance != null)
                {
                    var runner = Object.FindFirstObjectByType<NetworkRunner>();
                    if (runner != null) { PlayerDataManager.Instance.RPC_SendChatMessage(runner.LocalPlayer, msg); _chatInput.value = ""; _chatInput.Focus(); }
                }
            }
        }

        private void OnChatMessageReceived(PlayerRef sender, string message)
        {
            var runner = Object.FindFirstObjectByType<NetworkRunner>();
            if (runner == null) return;
            bool isHost = sender.PlayerId == 1; 
            if (isHost) ShowChatBubble(_hostChatBox, _hostChatMessage, message);
            else ShowChatBubble(_guestChatBox, _guestChatMessage, message);
        }

        private async void ShowChatBubble(VisualElement box, Label label, string msg)
        {
            if (box == null || label == null) return;
            label.text = msg;
            box.style.display = DisplayStyle.Flex;
            await Task.Delay(4000);
            if (label.text == msg) box.style.display = DisplayStyle.None;
        }

        private void ApplyLocalization() { if (LocalizationManager.Instance == null) return; }
        private string GetT(string key) => LocalizationManager.Instance != null ? LocalizationManager.Instance.GetLocalizedString(key) : key;
        public void SetRoomTemplate(VisualTreeAsset template) => _roomItemTemplate = template;
        public override async Task PlayTransitionIn() { await base.PlayTransitionIn(); ShowJoin(); }

        public void ShowJoin()
        {
            if (_joinContainer != null) _joinContainer.style.display = DisplayStyle.Flex;
            if (_createContainer != null) _createContainer.style.display = DisplayStyle.None;
            if (_loungeContainer != null) _loungeContainer.style.display = DisplayStyle.None;
            var spawner = BasicSpawner.Instance;
            if (spawner != null && (spawner.Runner == null || !spawner.Runner.IsRunning)) _ = spawner.StartLobby();
        }

        public void ShowCreate()
        {
            if (_joinContainer != null) _joinContainer.style.display = DisplayStyle.None;
            if (_createContainer != null) _createContainer.style.display = DisplayStyle.Flex;
            if (_createErrorLabel != null) _createErrorLabel.style.display = DisplayStyle.None;
            if (_confirmCreateBtn != null) _confirmCreateBtn.SetEnabled(true);
            if (_roomIDInput != null) _roomIDInput.value = "ROOM_" + Random.Range(1000, 9999).ToString();
        }

        private void ShowLounge(string roomName)
        {
            if (_joinContainer != null) _joinContainer.style.display = DisplayStyle.None;
            if (_createContainer != null) _createContainer.style.display = DisplayStyle.None;
            if (_loungeContainer != null) _loungeContainer.style.display = DisplayStyle.Flex;
            if (_loungeRoomName != null) _loungeRoomName.text = roomName.ToUpper();
            var spawner = BasicSpawner.Instance;
            if (spawner != null && spawner.Runner != null && spawner.Runner.SessionInfo != null)
            {
                var loungeIdLabel = root.Q<Label>("LoungeID");
                if (loungeIdLabel != null) loungeIdLabel.text = GetT("LOBBY_ID_PREFIX") + spawner.Runner.SessionInfo.Name;
            }
            _playerDataManager = Object.FindFirstObjectByType<PlayerDataManager>();
            if (_playerDataManager != null) _playerDataManager.OnChatMessageReceived += OnChatMessageReceived;
        }

        private async void OnCreateRoomClicked()
        {
            if (_confirmCreateBtn != null) _confirmCreateBtn.SetEnabled(false);
            if (_createErrorLabel != null) _createErrorLabel.style.display = DisplayStyle.None;
            var spawner = BasicSpawner.Instance;
            if (spawner == null) { ShowCreateError("System Error: Spawner missing. Please re-enter the Lobby."); return; }
            string id = (_roomIDInput != null && !string.IsNullOrEmpty(_roomIDInput.value)) ? _roomIDInput.value.Trim() : "ROOM_" + Random.Range(1000, 9999).ToString();
            string name = (_roomNameInput != null && !string.IsNullOrEmpty(_roomNameInput.value)) ? _roomNameInput.value.Trim() : id;
            string pass = (_passToggle != null && _passToggle.value && _roomPassInput != null) ? _roomPassInput.value : null;
            try {
                bool success = await spawner.StartHost(id, name, pass);
                if (success) ShowLounge(name);
                else ShowCreateError("Failed to create room. ID might be taken.");
            } catch (System.Exception ex) { ShowCreateError("Network Error: " + ex.Message); }
        }

        private void ShowCreateError(string message)
        {
            if (_createErrorLabel != null) { _createErrorLabel.text = message; _createErrorLabel.style.display = DisplayStyle.Flex; }
            if (_confirmCreateBtn != null) _confirmCreateBtn.SetEnabled(true);
        }

        private void UpdateRoomList(List<SessionInfo> sessions)
        {
            if (_roomList == null) return;
            _roomList.Clear();
            foreach (var session in sessions)
            {
                if (_roomItemTemplate == null) continue;
                var item = _roomItemTemplate.Instantiate();
                string displayName = session.Name;
                if (session.Properties.TryGetValue("rn", out var rnProp)) displayName = rnProp;
                item.Q<Label>("RoomName").text = displayName;
                item.Q<Label>("PlayerCount").text = $"{session.PlayerCount}/{session.MaxPlayers}";
                var statusBadge = item.Q<Label>("StatusBadge");
                if (statusBadge != null) statusBadge.text = GetT("ROOM_STATUS_WAITING");
                bool needsPass = session.Properties.ContainsKey("pw"); 
                var lockIcon = item.Q<Label>("LockIcon");
                if (lockIcon != null) lockIcon.style.display = needsPass ? DisplayStyle.Flex : DisplayStyle.None;
                var joinBtn = item.Q<Button>("JoinBtn");
                if (joinBtn != null) { joinBtn.text = GetT("ROOM_JOIN_BTN"); joinBtn.clicked += () => OnRoomItemClicked(session); }
                _roomList.Add(item);
            }
        }

        private async void OnRoomItemClicked(SessionInfo session)
        {
            bool needsPass = session.Properties.ContainsKey("pw");
            if (needsPass)
            {
                _selectedSession = session;
                if (_passOverlay != null) _passOverlay.style.display = DisplayStyle.Flex;
                if (_joinPassError != null) _joinPassError.style.display = DisplayStyle.None;
                if (_joinPassInput != null) _joinPassInput.value = "";
            }
            else await JoinRoom(session.Name, null);
        }

        private async void OnConfirmPasswordClicked()
        {
            if (_selectedSession == null) return;
            string pass = _joinPassInput != null ? _joinPassInput.value : "";
            if (_passOverlay != null) _passOverlay.style.display = DisplayStyle.None;
            await JoinRoom(_selectedSession.Name, pass);
        }

        private async Task JoinRoom(string sessionName, string password) { if (BasicSpawner.Instance != null) { if (await BasicSpawner.Instance.StartClient(sessionName, password)) ShowLounge(sessionName); } }
        private void OnReadyClicked() { var runner = Object.FindFirstObjectByType<NetworkRunner>(); if (runner != null && _playerDataManager != null && _playerDataManager.TryGetPlayerMetaData(runner.LocalPlayer, out var myData)) _playerDataManager.RPC_SetReady(runner.LocalPlayer, !myData.IsReady); }
        private void OnStartClicked() { BasicSpawner.Instance?.StartGame(); }
        private async void OnLeaveLoungeClicked() { var runner = Object.FindFirstObjectByType<NetworkRunner>(); if (runner != null) await runner.Shutdown(); if (_playerDataManager != null) _playerDataManager.OnChatMessageReceived -= OnChatMessageReceived; ShowJoin(); }

        public override void Update() { if (_loungeContainer != null && _loungeContainer.style.display == DisplayStyle.Flex) UpdateLoungeUI(); }

        private void UpdateLoungeUI()
        {
            var spawner = BasicSpawner.Instance;
            if (spawner == null) return;
            var runner = spawner.Runner;
            if (runner == null || _playerDataManager == null || _playerDataManager.Object == null || !_playerDataManager.Object.IsValid) return;

            PlayerRef hostRef = PlayerRef.None;
            PlayerRef guestRef = PlayerRef.None;
            var sortedPlayers = runner.ActivePlayers.OrderBy(p => p.PlayerId).ToList();
            if (sortedPlayers.Count > 0) hostRef = sortedPlayers[0];
            if (sortedPlayers.Count > 1) guestRef = sortedPlayers[1];

            if (runner.SessionInfo != null && runner.SessionInfo.Properties.TryGetValue("rn", out var rnProp)) _loungeRoomName.text = rnProp.ToString().ToUpper();

            if (hostRef != PlayerRef.None && _playerDataManager.TryGetPlayerMetaData(hostRef, out var hostData))
            {
                _hostNameLabel.text = hostData.Name.ToString().ToUpper();
                _hostStatusLabel.text = hostData.IsReady ? GetT("LOBBY_READY") : GetT("LOBBY_NOT_READY");
                _hostStatusLabel.style.color = hostData.IsReady ? Color.green : Color.red;
            }
            else if (hostRef != PlayerRef.None) { _hostNameLabel.text = GetT("LOBBY_SYNCING"); _hostStatusLabel.text = "-"; }

            if (guestRef != PlayerRef.None && _playerDataManager.TryGetPlayerMetaData(guestRef, out var guestData))
            {
                _guestNameLabel.text = guestData.Name.ToString().ToUpper();
                _guestStatusLabel.text = guestData.IsReady ? GetT("LOBBY_READY") : GetT("LOBBY_NOT_READY");
                _guestStatusLabel.style.color = guestData.IsReady ? Color.green : Color.red;
            }
            else if (runner.ActivePlayers.Count() >= 2) { _guestNameLabel.text = GetT("LOBBY_SYNCING"); _guestStatusLabel.text = "-"; }
            else { _guestNameLabel.text = GetT("LOBBY_WAITING_LABEL"); _guestStatusLabel.text = "-"; _guestStatusLabel.style.color = Color.gray; }

            bool allReady = true;
            int playerCount = 0;
            foreach (var p in runner.ActivePlayers) { playerCount++; if (_playerDataManager.TryGetPlayerMetaData(p, out var data)) { if (!data.IsReady) allReady = false; } else allReady = false; }

            bool isHost = runner.LocalPlayer == hostRef;
            if (_startBtn != null) { _startBtn.text = GetT("LOBBY_START_BTN"); _startBtn.style.display = isHost ? DisplayStyle.Flex : DisplayStyle.None; _startBtn.SetEnabled(allReady && playerCount >= 2); }

            if (_readyBtn != null && _playerDataManager.TryGetPlayerMetaData(runner.LocalPlayer, out var myData))
            {
                if (myData.IsReady) { _readyBtn.text = GetT("LOBBY_UNREADY_BTN"); _readyBtn.style.backgroundColor = new StyleColor(Color.green); _readyBtn.style.color = new StyleColor(Color.black); }
                else { _readyBtn.text = GetT("LOBBY_READY_BTN"); _readyBtn.style.backgroundColor = new StyleColor(new Color(0.2f, 0.2f, 0.2f, 0.8f)); _readyBtn.style.color = new StyleColor(Color.white); }
            }
        }

        private async void Invoke(string methodName, float delay) { await Task.Delay((int)(delay * 1000)); if (methodName == nameof(RegisterSpawnerEvents)) RegisterSpawnerEvents(); }
    }
}