using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

namespace CScript.Net
{
    public class QuicPackageHandler
    {
        private MemoryStream _stream = new MemoryStream(4096000);
        private int _readOffset = 0;
        private string _startSign;//#号表示一个数据的开始
        private bool _startWriteSteam = false;
        public QuicPackageHandler()
        {

        }
        public void ReceiveData(byte[] data, int offset, int count)
        {
            if (!_startWriteSteam)
            {
                while (_readOffset + 13 < count)
                {
                    _startSign = System.Text.Encoding.UTF8.GetString(data, _readOffset, 1);
                    int packageDataLen = BitConverter.ToInt32(data, _readOffset + 9);
                    if (_startSign == "#" && packageDataLen >= 0)
                    {
                        _startWriteSteam = true;
                        break;
                    }
                    else
                    {
                        _readOffset++;
                    }
                }
            }
            else
            {
                if (_stream.Position + count > _stream.Capacity)
                {
                    throw new Exception("PackageHandler write buffer overflow");
                }
                _stream.Write(data, offset, count);
                //ParsePackage();
            }
        }
    }
}