using System;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace MMO
{
    public class MMODataSyncManager : MMOSingleton<MMODataSyncManager>
    {
        public Action DelDataOverride;

        private bool mUploadEnabled = false;
        private float mUploadTimer = 0;

        private void Update()
        {
            if (MMOConstConfig.Instance.IsEnabled && mUploadEnabled)
            {
                mUploadTimer -= Time.unscaledDeltaTime;
                if (mUploadTimer < 0)
                {
                    UploadUserData();
                }
            }
        }

        private void OnApplicationFocus(bool focus)
        {
            if (MMOConstConfig.Instance.IsEnabled)
            {
#if !UNITY_EDITOR
                UploadUserData();
#endif
            }
        }

        protected override void Initialize()
        {
            base.Initialize();

            mUploadTimer = MMOConstConfig.Instance.UploadInterval;
        }

        public void SyncUserData()
        {
            MMORespondLogin tLoginData = MMOAPIRequestManager.Instance.GetData<MMORespondLogin>();
            if (tLoginData != null)
            {
                if (tLoginData.DataVersion > MMOUserData.Instance.DataVersion)
                {
                    string tData = MMOEncrypt.MD5Decrypt(tLoginData.Data);
#if UNITY_EDITOR
                    Debug.Log("Receive Data :" + tData);
#endif
                    ES3.SaveRaw(StringToBytes(tData));
                    MMOUserData.Load();

                    DelDataOverride?.Invoke();
                }

                mUploadEnabled = true;
            }
        }

        private void UploadUserData()
        {
            if (!mUploadEnabled)
                return;

            string tData = BytesToString(ES3.LoadRawBytes());
#if UNITY_EDITOR
            Debug.Log("Send Data :" + tData);
#endif
            MMOAPIRequestManager.Instance.SendRequest<MMORequestSetUserData, string>(new MMORequestSetUserData(MMOEncrypt.MD5Encrypt(tData), MMOUserData.Instance.DataVersion));

            mUploadTimer = MMOConstConfig.Instance.UploadInterval;
        }

        private string BytesToString(byte[] pBytes)
        {
            Encoding tCoding = Encoding.UTF8;
            string tString = tCoding.GetString(pBytes);

            return tString;
        }

        private byte[] StringToBytes(string pStr)
        {
            Encoding tCoding = Encoding.UTF8;
            byte[] tBytes = tCoding.GetBytes(pStr);

            return tBytes;
        }
    }
}