using System;
using UnityEngine;
using UnityEngine.Networking;
using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using Newtonsoft.Json;
using UnityEngine.SceneManagement;
using UnityEditor;

/* 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
 */
public class LoginController : MonoBehaviour
{
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        //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()
    //{
        
    //}



    // LoginToken登录方法
    IEnumerator LoginTokenEvent()
    {
        //yield return null;      // 跳过第一帧（可以考虑去掉，数据加载已经移到awake()了。
        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);

        // todo 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/";
        Dictionary<string, string> formData = new();
        formData.Add("login_token", LoginToken);
        formData.Add("UUID", UUID);

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

    // Post之后callback的函数
    void LoginTokenCallback(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());
            EnviromentSetting.accessToken = data["access_token"];
            EnviromentSetting.accessTokenReceivedTime = DateTime.Now;
            UserProperty.userId = data["user_id"];
        }
        if (UserProperty.userId != null && EnviromentSetting.accessToken != null)
        {
            SceneManager.LoadScene("Home");
        }
    }

    // Quick Start 登录方式，用UUID换取Login Token
    public void QuickStart()
    {
        string url = "/api/game/quick_start/";
        Dictionary<string, string> formData = new();
        formData.Add("UUID", EnviromentSetting.UUID);
        StartCoroutine(WebController.PostRequest(url, formData, 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"]);
            UserProperty.userId = data["user_id"];
            StartCoroutine(LoginTokenEvent());
        }
    }
}