using System;
using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using Newtonsoft.Json;
using UnityEngine.SceneManagement;
using Cinemachine;
using UnityEngine.UI;
using TMPro;

/* 使用login token进行登录和数据读取保存
 * TestDataInjection 是测试用的假数据注入
 * LoginTokenCheck 验证login token是否有效，和服务器比对
 * 比较版本是否可以符合游戏可以允许最低版本
 * 弹出用户注册窗口
 */
public class LoginController : MonoBehaviour
{
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    private GameObject canvasPlaceholder, regCanvas, createAdoptCanvas, loginCanvas;

    public static LoginController instance; // 用于在其他脚本中调用LoginController的函数
    private void Awake()
    {
        // 确保loginController在Awake阶段被正确赋值
        if (instance == null)
        {
            instance = this;
        }
    }

    void Start()
    {
        canvasPlaceholder = GameObject.Find("Canvas Placeholder");
        regCanvas = canvasPlaceholder.transform.Find("Register Canvas").gameObject;
        createAdoptCanvas = canvasPlaceholder.transform.Find("Create Or Adopt Canvas").gameObject;
        loginCanvas = canvasPlaceholder.transform.Find("Login Canvas").gameObject;

        StartCoroutine(PingServer());

        // 判断是否要切换到注册狗的子场景
        if (GameData.subScene == "Login_InitDog")
        {
            SwitchToInitDogScene();
            GameData.subScene = null;
        }
        else
        {
            //启动自动采用Login Token 登录。其他登录方式为手动登录。
            StartCoroutine(LoginTokenRequest());
        }
    }

    // Update is called once per frame
    //void Update()
    //{

    //}

    // 检测是否可以ping到服务器
    IEnumerator PingServer()
    {
        Uri uri = new Uri(EnviromentSetting.serverIP);
        var ping = new Ping(uri.Host);
        float pingStartTime = Time.time;

        while (!ping.isDone)
        {
            yield return null;
        }

        if (ping.time == -1)
        {
            Debug.LogError("Ping失败");
            string textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "game_message", "network_error", EnviromentSetting.languageCode });
            MessageBoxController.ShowMessage(textValue, ShutDown);
        }
    }


    // LoginToken登录方法
    IEnumerator LoginTokenRequest()
    {
        Debug.Log("LoginToken Request start");
        string UUID = SystemInfo.deviceUniqueIdentifier; // 这里需要考虑这段代码执行在Enviroment Controller之前
        string LoginToken = PlayerPrefs.GetString("LoginToken", null);
        string LoginTokenTime = PlayerPrefs.GetString("LoginTokenTime", null);

        // 比较LoginTokenTime 如果超时直接放弃后面代码。比较UUID是否是null如果是直接放弃后面代码
        if (LoginToken == null) { yield break; }
        ;
        if (LoginTokenTime == null) { yield break; }
        ;
        DateTime tokenTime;
        DateTime now = DateTime.Now;
        if (DateTime.TryParse(LoginTokenTime, out tokenTime))
        {
            TimeSpan span = now - tokenTime;
            if (span.TotalHours > 7 * 24)
            {
                yield break;
            }
        }
        else { yield break; }

        // 提交POST
        string url = "/api/login/token/";
        WWWForm form = new();
        form.AddField("login_token", LoginToken);
        form.AddField("UUID", UUID);

        StartCoroutine(WebController.PostRequest(url, form, callback: LoginTokenCallback));
    }

    // Post之后callback的函数
    void LoginTokenCallback(string json)
    {
        LoginSucessHandler(json);
        if (UserProperty.userId != null && EnviromentSetting.accessToken != null)
        {
            // 启动获取用户信息请求
            GetUserData();
        }
        else
        {
            Debug.Log("LoginTokenCallback 登陆失败");
            Debug.Log(json);
        }
    }

    void LoginSucessHandler(string json)
    {
        var data = JsonConvert.DeserializeObject<Dictionary<string, string>>(json);
        if (data != null && data["status"] == "success")
        {
            Debug.Log("Login Token sucess!");
            PlayerPrefs.SetString("LoginToken", data["login_token"]);
            PlayerPrefs.SetString("LoginTokenTime", DateTime.Now.ToString());
            EnviromentSetting.accessToken = data["access_token"];
            EnviromentSetting.accessTokenReceivedTime = DateTime.Now;
            UserProperty.userId = data["user_id"];

            // 比较游戏版本
            // TODO 等后台更改后删除
            //string allowed_client_ver = data["allowed_client_ver"];
            string allowed_client_ver = "0.1";
            string current_ver = EnviromentSetting.version;
            Version curVer = new Version(current_ver);
            Version allowVer = new Version(allowed_client_ver);
            int verCompare = curVer.CompareTo(allowVer);
            if (verCompare < 0)
            {
                // 弹窗，然后退出
                string err_msg;
                if (EnviromentSetting.platform == "IPhonePlayer")
                {
                    err_msg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "game_message", "not_allow_version_IOS", EnviromentSetting.languageCode });
                }
                else if (EnviromentSetting.platform == "Android")
                {
                    if (EnviromentSetting.languageCode == "zh-cn")      // 安卓中文环境
                    {
                        err_msg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "game_message", "not_allow_version_Andriod_CN", EnviromentSetting.languageCode });
                    }
                    else
                    {
                        // 安卓其他语言
                        err_msg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "game_message", "not_allow_version_Andriod_WW", EnviromentSetting.languageCode });
                    }
                }
                else
                {
                    // 不明操作系统
                    err_msg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "game_message", "not_allow_version_Generic", EnviromentSetting.languageCode });

                }
                MessageBoxController.ShowMessage(err_msg, ShutDown);
            }
        }
        else
        {
            Debug.Log("Login Token fail!");
            Debug.Log(json);
        }
    }
    // 当版本检查不符合游戏时退出游戏
    public void ShutDown()
    {
        Application.Quit();
    }

    public void GetUserData()
    {
        Debug.Log("GetUserData request");
        // 提交POST
        string url = "/api/user/info/";
        WWWForm form = new();
        form.AddField("user_id", UserProperty.userId);
        StartCoroutine(WebController.PostRequest(url, form, callback: GetUserDataCallback));
    }

    void GetUserDataCallback(string json)
    {
        var data = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);
        if (data != null && data["status"].ToString() == "success")
        {
            var user_info = data["user_info"].ToString();
            UserProperty.RefreshUserInfo(user_info);
            var user_info_dict = JsonConvert.DeserializeObject<Dictionary<string, object>>(user_info);
            // todo 将用户运行环境保存到设定中
            // EnviromentSetting.runEnv = user_info_dict["runEnv"].ToString();

            // 保存狗的数据
            string dogsJson = data["dogs"].ToString();
            UserProperty.RefreshDogInfo(dogsJson);

            // 保存道具数据
            UserProperty.RefreshUserItems(data["props"].ToString());

            // 判断用户狗的数量，如果为0就跳转用户创建狗。
            if (UserProperty.dogs.Count < 1)
            {
                SwitchToInitDogScene();
            }
            // 如果非注册用户，提示用户注册
            else if (!UserProperty.isRegUser)
            {
                // 如果没有提醒过
                if (!GameData.hasRemindedRegister)
                {
                    GameData.hasRemindedRegister = true;
                    var canvasPlaceholder = GameObject.Find("Canvas Placeholder");
                    var loginCanvas = canvasPlaceholder.transform.Find("Login Canvas").gameObject;
                    loginCanvas.SetActive(false);
                    string msg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "game_message", "reg_reminder", EnviromentSetting.languageCode });
                    //MessageBoxController.YorN_Message(msg, ()=> regCanvas.SetActive(true), ()=> SceneManager.LoadScene("Home"));
                    MessageBoxController.YorN_Message(msg, () => regCanvas.SetActive(true), () => MaskTransitions.TransitionManager.Instance.LoadLevel("Home"));
                }
                else
                {
                    MaskTransitions.TransitionManager.Instance.LoadLevel("Home");
                }


            }
            else
            {
                ShowStartGameUI();
            }
        }
        else
        {
            Debug.Log(data["message"]);
        }
    }

    void ShowStartGameUI()
    {
        var uiPlaceholder = GameObject.Find("Canvas Placeholder");
        if (uiPlaceholder != null)
        {
            var startGameUI = uiPlaceholder.transform.Find("Start Game Canvas").gameObject;
            startGameUI.SetActive(true);
            var loginCanvas = uiPlaceholder.transform.Find("Login Canvas").gameObject;
            loginCanvas.SetActive(false);
        }
    }


    // Quick Start 登录方式，用UUID换取Login Token
    public void QuickStart()
    {
        Debug.Log("Quick start post request.");
        string url = "/api/game/quick_start/";
        Dictionary<string, string> formData = new();
        WWWForm form = new();
        form.AddField("UUID", EnviromentSetting.UUID);
        StartCoroutine(WebController.PostRequest(url, form, callback: QuickStartCallback));
    }

    void QuickStartCallback(string json)
    {
        var data = JsonConvert.DeserializeObject<Dictionary<string, string>>(json);
        if (data != null && data["status"] == "success")
        {
            PlayerPrefs.SetString("LoginToken", data["login_token"]);
            PlayerPrefs.SetString("LoginTokenTime", DateTime.Now.ToString());
            UserProperty.userId = data["user_id"];
            StartCoroutine(LoginTokenRequest());
        }
        else
        {
            string errMsg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "game_message", "login_fail", EnviromentSetting.languageCode });
            MessageBoxController.ShowMessage(errMsg);
        }
    }

    public void ResetPassword()
    {
        var uiPlaceholder = GameObject.Find("Canvas Placeholder");
        if (uiPlaceholder != null)
        {
            var resetUI = uiPlaceholder.transform.Find("Reset Pasword").gameObject;
            var loginCanvas = uiPlaceholder.transform.Find("Login Canvas").gameObject;
            resetUI.SetActive(true);
            loginCanvas.SetActive(false);
        }
    }

    // 切换到生成狗的子场景
    void SwitchToInitDogScene()
    {

        createAdoptCanvas.SetActive(true);
        loginCanvas.SetActive(false);
        regCanvas.SetActive(false);
        var loginCam = GameObject.Find("V Cam Login").GetComponent<CinemachineVirtualCamera>();
        var initDogCam = GameObject.Find("V Cam Init Dog").GetComponent<CinemachineVirtualCamera>();
        loginCam.Priority = 0;
        initDogCam.Priority = 10;
    }

    // 使用账户密码登录方法
    public void Login()
    {
        string account = GameObject.Find("Account input").GetComponent<TMP_InputField>().text;
        string password = GameObject.Find("Password input").GetComponent<TMP_InputField>().text;
        string url = "/api/login/";
        Dictionary<string, string> formData = new();
        WWWForm form = new();
        form.AddField("client_language", EnviromentSetting.languageCode);
        if (EnviromentSetting.languageCode == "zh-cn")
        {
            form.AddField("mobile_number", account.Trim());
        }
        else
        {
            form.AddField("email", account.Trim());
        }
        form.AddField("password", password.Trim());
        StartCoroutine(WebController.PostRequest(url, form, callback: LoginCallback));
    }

    void LoginCallback(string json)
    {
        var data = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);
        if (data != null && data["status"].ToString() == "success")
        {
            LoginSucessHandler(json);
            if (UserProperty.userId != null && EnviromentSetting.accessToken != null)
            {
                // 启动获取用户信息请求
                GetUserData();
            }
            else
            {
                Debug.Log("LoginTokenCallback 登陆失败");
                Debug.Log(json);
            }
        }
        else
        {
            string errMsg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "game_message", "login_fail", EnviromentSetting.languageCode });
            MessageBoxController.ShowMessage(errMsg);
        }

    }

}