using System;
using UnityEngine;
using UnityEngine.Networking;
using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;

/* 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 LoginTokenController : MonoBehaviour
{
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        TestDataInjection();
        StartCoroutine(LoginTokenCheck());
    }

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

    // todo 删除。测试假数据注入
    void TestDataInjection()
    {
        PlayerPrefs.SetString("LoginToken", "TestLoginToken");
        DateTime now = DateTime.Now;
        DateTime oneHourAgo = now.AddHours(-1);
        PlayerPrefs.SetString("LoginTokenTime", oneHourAgo.ToString());
    }

    // LoginToken登录方法
    IEnumerator LoginTokenCheck()
    {
        //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 = "https://" + EnviromentSetting.serverIp + "/api/login/token/";
        WWWForm form = new();
        form.AddField("login_token", LoginToken);
        form.AddField("UUID", UUID);
        //List<KeyValuePair<string, string>> fields = form.fields;
        using UnityWebRequest request = UnityWebRequest.Post(url, form);
        {
            yield return request.SendWebRequest();
            if (request.result == UnityWebRequest.Result.Success)
            {
                Debug.Log("POST Success: " + request.downloadHandler.text);
            }
            else
            {
                Debug.Log("POST Error: " + request.error);
            }
        }
    }
}