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

public class SerialPortExample : MonoBehaviour
{
    public int baudrate = 115200;

    public SerialPortUtilityPro serialPortUtility;
    public SerialPortUtilityPro.OpenSystem openMode = SerialPortUtilityPro.OpenSystem.PCI;

    private static int baseAddress;
    private static int offsetAddress;
    private Queue<byte> tempDataQueue;

    public string PortName = "";

    private int coinsAmount = 0;

    private const int SlotCount = 1;


    bool urlBack = false;
    byte dataIndex = 1;

    private void Awake()
    {
        DontDestroyOnLoad(gameObject);
    }
    private void Start()
    {
        serialPortUtility = gameObject.GetComponent<SerialPortUtilityPro>();
        serialPortUtility.OpenMethod = openMode;
        serialPortUtility.DeviceName = PortName;
        serialPortUtility.StopBit = SerialPortUtilityPro.StopBitEnum.OneBit;
        serialPortUtility.DataBit = SerialPortUtilityPro.DataBitEnum.EightBit;
        serialPortUtility.Open();
        //serialPortUtility.ReadCompleteEventObject.AddListener(ReadStreamingBinary);
        //byte[] datas = new byte[8] { 0xAA, 0x08, 0x04, 0x01, 0x00, 0x00, 0x3C, 0xBB };
        //serialPortUtility.Write(datas);

        if (PortName.Contains("/dev/ttyS0"))
            RequestUrl(dataIndex);
    }

    void Update()
    {

        #region 测试代码
#if UNITY_EDITOR
        if (Input.GetMouseButtonDown(0))
        {
            //TestPayQR();
        }
#endif
        #endregion
        //if (serialPortUtility != null && serialPortUtility.IsOpened())
        //    {
        //        Debug.Log(serialPortUtility.GetSerialDebugString);
        //        Debug.Log("串口接收到数据");
        //    }
    }

    void TestPay()
    {
        if (!PortName.Contains("/dev/ttyS0"))
            return;
        Debug.LogError("TestPay");
        List<byte> data = new List<byte>();
        data.Add(0XAA);
        data.Add(0X55);//帧头
        data.Add(0x04);//帧长度
        data.Add(0x01);//数据编号
        data.Add(0XA6);//指令
        data.Add(0X01);//数据
        data.Add(0X00);//校验位
        PrintFrame(data.ToArray());
    }

    void TestPayQR()
    {
        if (!PortName.Contains("/dev/ttyS0"))
            return;
       
        List<byte> data = new List<byte>();
        data.Add(0XAA);
        data.Add(0X55);//帧头
        data.Add(0x05);//帧长度
        data.Add(0xDA);//数据编号
        data.Add(0XA1);//指令
        data.Add(0X02);//数据
        data.Add(0X64);//数据
        byte temp = 0;
        for (int i = 2; i < data.Count; i++)
        {
            temp ^= data[i];
        }
        data.Add(temp);//校验位
        Debug.LogError($"TestPayQR  temp={temp}");
        PrintFrame(data.ToArray());
    }

    void OnUrlPayResponse(byte[] bytes)
    {
        if (!PortName.Contains("/dev/ttyS0"))
            return;

        //计算校验值
        byte tempResponseCheck = 0;
        for (int i = 2; i < bytes.Length - 1; i++)
        {
            tempResponseCheck ^= bytes[i];
        }
        byte responseCheck = bytes[bytes.Length - 1];

        //回复云上分
        List<byte> response = new List<byte>();
        response.Add(0XAA);
        response.Add(0X55);//帧头
        response.Add(0X04);//帧长
        var dataIndex = bytes[3];
        response.Add(dataIndex);//数据编号
        response.Add(0XA1);//数据编号
        var data = responseCheck == tempResponseCheck ? 0X01 : 0x00;
        response.Add((byte)data);//数据
        var endIdx = bytes[3];

        byte temp = 0;
        for (int i = 2; i < response.Count; i++)
        {
            temp ^= response[i];
        }
        response.Add(temp);//校验位
        Debug.LogError($"responseCheck={responseCheck}  tempResponseCheck={tempResponseCheck} data ={data} dataIndex={dataIndex}  temp={temp}");
        serialPortUtility.Write(response.ToArray());

        if (data == 0X01)
            StandaloneAPI.InsertCoint(bytes[6]);
    }

    /// <summary>
    /// 串口读取二进制流数据
    /// </summary>
    /// <param name="data"></param>
    public void ReadStreamingBinary(object data)
    {
        var bin = data as byte[];

        PrintFrame(bin);   
    }

    void PrintFrame(byte[] bytes)
    {
        if (bytes[0] == 0xAA)
        {
            if (bytes[1] == 0x55)//旧
            {
                if (bytes[4] == 0xA6)//投币
                {
                    Debug.Log("旧版投币数量：" + bytes[4]);
                    StandaloneAPI.InsertCoint(bytes[5]);
                }
                else if (bytes[4] == 0xAA) //支付盒子链接请求返回
                    OnUrlResponse(bytes);
                else if (bytes[4] == 0xA1) //支付盒子支付返回（云上分）
                    OnUrlPayResponse(bytes);
            }
            else
            {
                //Debug.Log("bytes[1]命令：" + bytes[1] + "bytes[2]命令：" + bytes[2]);
                Debug.Log("接收到的串口命令：" + bytes[0] + bytes[1] + bytes[2] + bytes[3] + bytes[4] + bytes[5]);
                //0x04：为按键是否按下的命令
                if (bytes[1] == 0x04)//退出
                {
                    Debug.Log("确认按键退出游戏命令");
                    if (bytes[3] == 0x01)
                    {
                        Debug.Log("确认按下按键");
                        AimHandler.ins.ExitIntoEvent();
                        SendMessage(bytes, 3);
                        return;
                    }
                    else if(bytes[3] == 0x00)
                    {
                        Debug.Log("松开按键");
                        SendMessage(bytes, 3);
                        return;
                    }
                }
                else if (bytes[1] == 01)//投币
                {
                    Debug.Log("确认投币命令");
                    StandaloneAPI.InsertCoint(bytes[3]);
                    SendMessage(bytes, 3);
                }
                
            }
        }
    }

    /// <summary>
    /// 请求二维码链接
    /// </summary>
    /// <param name="dataIndex">数据编号 从1开始</param>
    private void RequestUrl(byte dataIndex)
    {
        byte[] datas = new byte[7] { 0xAA, 0x55, 0x04, dataIndex, 0xAA, 0x01, 0xAE };
        datas[6] = GetXor(datas);
        serialPortUtility.Write(datas);
        Invoke("CheckURLBack", 5f);

#if UNITY_EDITOR
        TestBackUrl();
#endif
    }

    private void CheckURLBack()
    {
        if (!urlBack && dataIndex <= 3)
        {
            Debug.LogWarning("没有拉取到支付url");
            RequestUrl(++dataIndex);
        }
    }

    /// <summary>
    /// 测试URL回包
    /// </summary>
    private void TestBackUrl()
    {
        var url = $"http://pay.sy1999.com:8901?productNumber=SY4G4365";
        var urlData = System.Text.UTF8Encoding.Default.GetBytes(url);

        List<byte> data = new List<byte>();
        data.Add(0XAA); data.Add(0X55);//帧头
        data.Add((byte)(urlData.Length + 3));//帧长度（数据编号到校验位的所有数据长度）
        data.Add(0X01);//数据编号
        data.Add(0XAA);//指令
        data.AddRange(urlData);//数据
        data.Add(0X00);//校验位

        Debug.Log($"Test: url={url}   length={urlData.Length}");
        PrintFrame(data.ToArray());
    }

    /// <summary>
    /// URL请求返回
    /// </summary>
    /// <param name="data"></param>
    void OnUrlResponse(byte[] bytes)
    {
        urlBack = true;
        Debug.Log("开始解析二维码数组");
        int frameLength = bytes[2];
        Debug.Log("帧长度" + frameLength);
        frameLength = frameLength - 3;
        Debug.Log("解析后的数据长度：" + frameLength);
        List<byte> datas = new List<byte>();
        var startPos = 5;
        for (int i = startPos; i < frameLength + startPos; i++)
        {
            datas.Add(bytes[i]);
        }

        byte[] bs = datas.ToArray();
        var url = System.Text.Encoding.Default.GetString(bs);
        StandaloneAPI.url = url;

        var homeView = FindObjectOfType<HomeView>();
        if (homeView != null)
            homeView.FlushUrlQR();
    }

    void SendMessage(byte[] bytes,int index)
    {
        List<byte> s = new List<byte>(bytes);
        s.RemoveAt(index);
        bytes = s.ToArray();
        serialPortUtility.Write(bytes);
    }

    byte GetXor(byte[] btyes)
    {
        byte temp = 0;
        for (int i = 2; i < btyes.Length; i++)
        {
            temp ^= btyes[i];
        }
        return temp;
    }
    private void OnDestroy()
    {
        Debug.Log("串口程序被销毁");
        serialPortUtility.Close();
    }
}