using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using BrewMonster.Network;
using CSNetwork.Protocols;
using CSNetwork.Protocols.RPCData;
using TMPro;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

namespace BrewMonster.UI
{
    /// <summary>
    /// Login Flow: 
    /// 1. Enter username and password
    /// 2. Click login button
    /// 3. Login success, get the list of characters
    /// 4. Open the select character screen
    /// </summary>
    public class LoginScreenUI : MonoBehaviour
    {
        [SerializeField] private TMP_InputField _usernameInputField;
        [SerializeField] private TMP_InputField _passwordInputField;
        [SerializeField] private Button _loginButton;
        [SerializeField] private SelecScreenCharacter _selectCharacterScreen;

        private List<RoleInfo> _roleInfos;
        bool isDoneWorldRender = false;
        bool isDoneNPCRender = false;
        private SynchronizationContext context;

        void Start()
        {
            _loginButton.onClick.AddListener(OnLoginButtonClicked);
            context = SynchronizationContext.Current;

            _usernameInputField.text = PlayerPrefs.GetString("username", "");
            _passwordInputField.text = PlayerPrefs.GetString("password", "");
        }

        // Update is called once per frame
        void Update()
        {
            if (_roleInfos != null)
            {
                _selectCharacterScreen.InitScreen(_roleInfos, OnClickSelectCharacter);
                _roleInfos = null;
            }

#if UNITY_EDITOR
            if (Input.GetKeyUp(KeyCode.LeftAlt))
            {
                _usernameInputField.text = "test004";
                _passwordInputField.text = "123456";
            }

            if (Input.GetKeyUp(KeyCode.Tab))
            {
                _usernameInputField.text = "test002";
                _passwordInputField.text = "123456";
                OnLoginButtonClicked();
            }
#endif
        }

        public async void OnLoginButtonClicked()
        {
            BMLogger.Log("OnLoginButtonClicked");
            string username = _usernameInputField.text;
            string password = _passwordInputField.text;
            UnityGameSession.SetConnectionInfo("103.182.22.52", 29000);
            PlayerPrefs.SetString("username", username);
            PlayerPrefs.SetString("password", password);
            PlayerPrefs.Save();
            await UnityGameSession.Login(username, password, OnLoginComplete);
            _selectCharacterScreen.gameObject.SetActive(true);
        }

        /// <summary>
        /// Callback when the login is complete. 
        /// Then get the list of characters
        /// </summary>
        private void OnLoginComplete(bool result)
        {
            if (!result)
            {
                BMLogger.LogError("Login failed");
                return;
            }

            UnityGameSession.GetRoleListAsync(OnGetRoleListComplete);
        }

        /// <summary>
        /// Callback when the list of characters is retrieved. 
        /// Then move to the select character screen
        /// </summary>
        private void OnGetRoleListComplete(List<RoleInfo> roleInfos)
        {
            BMLogger.Log($"OnGetRoleListComplete {roleInfos.Count}");

            _roleInfos = roleInfos;
        }

        private void OnClickSelectCharacter(RoleInfo roleInfo)
        {
            BMLogger.Log($"OnClickSelectCharacter {roleInfo.name}");
            UnityGameSession.SelectRoleAsync(roleInfo, OnSelectRoleComplete);
        }

        private void OnSelectRoleComplete(RoleInfo roleInfo)
        {
            context.Post(_ =>
            {
                isDoneWorldRender = false;
                isDoneNPCRender = false;
                Action actLoadChar = () =>
                {
                    if (!isDoneNPCRender || !isDoneWorldRender)
                    {
                        return;
                    }
                };
#if TESTFAST
                string nameScene = "LoginScene";
                SceneManager.UnloadSceneAsync(nameScene);
                nameScene = "NPCRender";
                UnityGameSession.Instance.LoadScene(nameScene, LoadSceneMode.Additive, (value) =>
                {
                    isDoneNPCRender = value;
                    isDoneWorldRender = value;
                    actLoadChar?.Invoke();
                    UnityGameSession.EnterWorldAsync(roleInfo, OnEnterWorldComplete);
                });
#else
 string nameScene = "NPCRender";
                UnityGameSession.Instance.LoadScene(nameScene, LoadSceneMode.Single, (value) =>
                {
                    isDoneNPCRender = value;
                    actLoadChar?.Invoke();
                });
                nameScene = "a61";
                UnityGameSession.Instance.LoadScene(nameScene, LoadSceneMode.Additive, (value) =>
                {
                    isDoneWorldRender = value;
                    actLoadChar?.Invoke();
                    UnityGameSession.EnterWorldAsync(roleInfo, OnEnterWorldComplete);
                    
                });
#endif
            }, null);
        }

        private async void OnEnterWorldComplete()
        {
            await Task.Delay(2000);
            // Request all known packages: 0=Inventory,1=Equipment,2=Task
            UnityGameSession.RequestAllInventoriesAsync(() =>
            {
                /*BMLogger.Log("Sent Inventory Detail Requests (all packs)");*/
            }, 0, 1, 2);
            UnityGameSession.RequestCheckSecurityPassWd("");
            UnityGameSession.RequesrQueryPlayerCash();
            await Task.Delay(2000);
            UnityGameSession.c2s_CmdGetAllData(true, true, false);
            EC_Game.Init();
        }

        //private void OnInventoryReceived(List<InventoryItem> inventoryData)
        //{
        //    _inventoryUI.DisplayInventory(inventoryData);
        //}

#if UNITY_EDITOR
        private void OnValidate()
        {
            if (_usernameInputField == null)
            {
                // find childrend with name "username"
                _usernameInputField = transform.Find("username").GetComponent<TMP_InputField>();
            }

            if (_passwordInputField == null)
            {
                // find childrend with name "password"
                _passwordInputField = transform.Find("password").GetComponent<TMP_InputField>();
            }

            if (_loginButton == null)
            {
                // find childrend with name "LoginBtn"
                _loginButton = transform.Find("LoginBtn").GetComponent<Button>();
            }
        }
#endif
    }
}