using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using ArduinoBluetoothAPI;
using BestHTTP.WebSocket;

public class ShootCheck : MonoBehaviour
{
    [SerializeField] Text text;
    CMD cmd = new CMD();
    bool locked = false;
    float maxAcc = 0;
    Queue<float> keyAccList = new Queue<float>();
    public float shootSpeed;
    public static ShootCheck ins; 

    void Start()
    {
        ins = this;
        BluetoothDispatcher.shoot = OnDataReceived;   
    } 

    public void OnBluetoothReady(BluetoothShoot bluetoothShoot) {
        bluetoothShoot.WriteData(JsonUtility.ToJson(cmd).Replace("\"", ""));
    }

    public void OnDataReceived(byte[] bytes) {
        if (bytes.Length == 2) 
        {
            DeviceBatteryView.ins.RenderBattery(2, bytes[0]);
            return;
        }   
        for (int i = 0; i < (bytes.Length-2)/6; i++)
        {
            float acc = ToAcceleratedSpeed(bytes[i * 6 + 5], bytes[i * 6 + 6]);
            if (ins.check(acc) && ArmBow.ins) 
            {
                ArmBow.ins.ADS_fire();   
            }
        }   
    }

    float ToAcceleratedSpeed(byte b1, byte b2)
    {
        int value = TwoByteToInt(b1, b2);
        return (float)value / 32768 * LoginMgr.myUserInfo.deviceAccValue;
    }
    
    int TwoByteToInt(byte b1, byte b2)
    {
        ushort twoByte = (ushort)(b1 * 256 + b2);
        short shortNum = (short)twoByte;
        return (int)shortNum;
    }

    bool check(float acc)
    {
        DebugLine.show(acc); //这个不需要注释，静态函数内置判断
        if (locked) 
        {
            return false;
        }
        if (acc > cmd.getAcc()) 
        {
            if (acc > maxAcc)
            {
                maxAcc = acc;
            }
            keyAccList.Enqueue(acc);
            return false;
        } 
        else if (acc < cmd.getAcc() && maxAcc != 0) {
            //积分求初速度
            shootSpeed = 0;
            float lasKeytAcc = 0;
            int keyAccIndex = 0;
            foreach (var keyAcc in keyAccList)
            {
                if (keyAccIndex > 0)
                {
                    shootSpeed += keyAcc * 0.002f;
                    shootSpeed -= (keyAcc - lasKeytAcc) * 0.002f / 2;
                }
                lasKeytAcc = keyAcc;
                keyAccIndex++;
            }
            //加速度acc的单位是g,最后需要乘上
            shootSpeed *= 9.80665f;
            //积分出来的值还是太小，需要一个倍率
            shootSpeed *= 10;
            Debug.LogWarning("初速度: " + shootSpeed + " 帧数: " + keyAccList.Count);
            //本轮计算结束
            keyAccList.Clear();
            maxAcc = 0;
            Dolock();
            Invoke("Unlock", 1.8f);
            return true;
        }

        return false;
    }

    void Dolock() 
    {
        locked = true;
    }

    void Unlock()
    {
        locked = false;
    }
    
    void Log(string text)
    {
        if (this.text)
        {
            this.text.text = text;
        } else {
            Debug.Log(text);
        }
    }
}

[Serializable]
class CMD {
    // public string ax = "y";
    // public int a = 6000;
    // public int r = 2;
    public string a = "y";
    public int a1 = 3;
    public int a2 = -3;
    public int r = 2;

    public float getAcc() {
        return a1;
    }
}