using System;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace XGame
{
    public class AuthRegisterLoginController : MonoBehaviour
    {
        private TMP_InputField loginUsernameField;
        private TMP_InputField loginPasswordField;
        private TMP_InputField registerUsernameField;
        private TMP_InputField registerPasswordField;
        private TMP_InputField registerConfirmField;
        private Toggle toggleRemember;
        private Button btnLogin;
        private Button btnRegister;
        private Button btnGuest;
        private Button btnTabLogin;
        private Button btnTabRegister;
        private GameObject loginForm;
        private GameObject registerForm;
        private GameObject rememberRow;
        private TMP_Text tipsText;
        private TMP_Text titleText;
        private TMP_Text rememberText;
        private string luaModule = "client/login";
        private bool isRegisterMode;
        private bool isLoading;
        public Action<string, string, bool, bool> OnLogin;
        public Action<string, string, string> OnRegister;
        public Action<string, string, bool, bool> OnGuestLogin;

        private void Awake()
        {
            CacheControls();
            WireEvents();
            SwitchLogin();
        }

        public void Bind(string module)
        {
            if (!string.IsNullOrEmpty(module))
            {
                luaModule = module;
            }
        }

        public void SetInitialState(string account, bool remember, bool autoLogin, bool agreement)
        {
            SetInitialState(account, string.Empty, remember, autoLogin, agreement);
        }

        public void SetInitialState(string account, string password, bool rememberPassword, bool autoLogin, bool agreement)
        {
            CacheControls();
            SetInputText(loginUsernameField, account);
            SetInputText(loginPasswordField, rememberPassword ? password : string.Empty);
            SetInputText(registerUsernameField, account);
            if (toggleRemember != null)
            {
                toggleRemember.isOn = rememberPassword;
            }
            if (rememberText != null)
            {
                rememberText.text = "记住密码";
            }
        }

        public void SetServerInfo(string serverName, string status)
        {
        }

        public void SetVersion(string version)
        {
        }

        public void SetLoading(bool loading)
        {
            isLoading = loading;
            SetButtonEnabled(btnLogin, !loading);
            SetButtonEnabled(btnRegister, !loading);
            SetButtonEnabled(btnGuest, !loading);
            SetButtonEnabled(btnTabLogin, !loading);
            SetButtonEnabled(btnTabRegister, !loading);
            if (loading)
            {
                ShowError(isRegisterMode ? "Registering..." : "Logging in...");
            }
        }

        public void ShowError(string message)
        {
            CacheControls();
            if (tipsText != null)
            {
                tipsText.text = message ?? string.Empty;
            }
        }

        public void Close()
        {
            Destroy(gameObject);
        }

        public void ToggleBaseAtlas()
        {
        }

        public void SwitchLogin()
        {
            isRegisterMode = false;
            SetActive(loginForm, true);
            SetActive(registerForm, false);
            SetActive(rememberRow, true);
            SetActive(btnLogin, true);
            SetActive(btnGuest, true);
            SetActive(btnRegister, false);
            if (titleText != null)
            {
                titleText.text = "Login";
            }
            ShowError(string.Empty);
        }

        public void SwitchRegister()
        {
            isRegisterMode = true;
            SetActive(loginForm, false);
            SetActive(registerForm, true);
            SetActive(rememberRow, false);
            SetActive(btnLogin, false);
            SetActive(btnGuest, false);
            SetActive(btnRegister, true);
            if (titleText != null)
            {
                titleText.text = "Register";
            }
            ShowError(string.Empty);
        }

        private void OnLoginClicked()
        {
            if (isLoading)
            {
                return;
            }
            OnLogin?.Invoke(
                GetInputText(loginUsernameField),
                GetInputText(loginPasswordField),
                toggleRemember != null && toggleRemember.isOn,
                false);
        }

        private void OnRegisterClicked()
        {
            if (isLoading)
            {
                return;
            }
            OnRegister?.Invoke(
                GetInputText(registerUsernameField),
                GetInputText(registerPasswordField),
                GetInputText(registerConfirmField));
        }

        private void OnGuestClicked()
        {
            if (isLoading)
            {
                return;
            }
            OnGuestLogin?.Invoke(
                GetInputText(loginUsernameField),
                GetInputText(loginPasswordField),
                toggleRemember != null && toggleRemember.isOn,
                false);
        }

        private void CacheControls()
        {
            loginUsernameField = loginUsernameField ? loginUsernameField : Find<TMP_InputField>("LoginUsernameField");
            loginPasswordField = loginPasswordField ? loginPasswordField : Find<TMP_InputField>("LoginPasswordField");
            registerUsernameField = registerUsernameField ? registerUsernameField : Find<TMP_InputField>("RegisterUsernameField");
            registerPasswordField = registerPasswordField ? registerPasswordField : Find<TMP_InputField>("RegisterPasswordField");
            registerConfirmField = registerConfirmField ? registerConfirmField : Find<TMP_InputField>("RegisterConfirmField");
            toggleRemember = toggleRemember ? toggleRemember : Find<Toggle>("ToggleRemember");
            btnLogin = btnLogin ? btnLogin : Find<Button>("BtnLogin");
            btnRegister = btnRegister ? btnRegister : Find<Button>("BtnRegister");
            btnGuest = btnGuest ? btnGuest : Find<Button>("BtnGuest");
            btnTabLogin = btnTabLogin ? btnTabLogin : Find<Button>("BtnTabLogin");
            btnTabRegister = btnTabRegister ? btnTabRegister : Find<Button>("BtnTabRegister");
            loginForm = loginForm ? loginForm : FindGameObject("LoginForm");
            registerForm = registerForm ? registerForm : FindGameObject("RegisterForm");
            rememberRow = rememberRow ? rememberRow : FindGameObject("RememberRow");
            tipsText = tipsText ? tipsText : Find<TMP_Text>("TextTips");
            titleText = titleText ? titleText : Find<TMP_Text>("TextPanelTitle");
            rememberText = rememberText ? rememberText : Find<TMP_Text>("TextRemember");
        }

        private void WireEvents()
        {
            AddClick(btnLogin, OnLoginClicked);
            AddClick(btnRegister, OnRegisterClicked);
            AddClick(btnGuest, OnGuestClicked);
            AddClick(btnTabLogin, SwitchLogin);
            AddClick(btnTabRegister, SwitchRegister);
        }

        private T Find<T>(string name) where T : Component
        {
            Transform target = transform.FindTransform(name);
            return target == null ? null : target.GetComponent<T>();
        }

        private GameObject FindGameObject(string name)
        {
            Transform target = transform.FindTransform(name);
            return target == null ? null : target.gameObject;
        }

        private void AddClick(Button button, UnityEngine.Events.UnityAction action)
        {
            if (button == null)
            {
                return;
            }
            button.onClick.RemoveListener(action);
            button.onClick.AddListener(action);
        }

        private static string GetInputText(TMP_InputField input)
        {
            return input == null ? string.Empty : input.text;
        }

        private static void SetInputText(TMP_InputField input, string text)
        {
            if (input != null)
            {
                input.text = text ?? string.Empty;
            }
        }

        private static void SetButtonEnabled(Button button, bool enabled)
        {
            if (button != null)
            {
                button.interactable = enabled;
            }
        }

        private static void SetActive(Component component, bool active)
        {
            if (component != null)
            {
                component.gameObject.SetActive(active);
            }
        }

        private static void SetActive(GameObject gameObject, bool active)
        {
            if (gameObject != null)
            {
                gameObject.SetActive(active);
            }
        }
    }
}