using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;
using System;
using System.Globalization;

public class KeyLogger : MonoBehaviour
{
    readonly char[] smallLetters = "abcdefghjkmnopqrstuvwxyz".ToCharArray();
    readonly char[] capitalLetters = "ABCDEFGHJKMNOPQRSTUVWXYZ".ToCharArray();
    readonly char[] numbers = "1234567890".ToCharArray();
    ExperimentControl control;
    char selectedKey = new char();
    KeyCode anyKey;
    KeyCode selectedKeyCode = KeyCode.CapsLock;
    List<KeyVector> KeyLogs;
    KeyVector currentKey;

    char lastKey;
    float FT = 0;
    bool fingerFlying = false;
    float timeKeyPressed = 0;
    float lastKeyPressed = 0;
    int keyId = 0;
    int updateCount = 0;
    string type = "";

   bool LoggerOn=false;

    private void Awake()
    {
        control = GameObject.Find("ExperimentControl").GetComponent<ExperimentControl>();
        KeyLogs = control.data;
    }
    void OnGUI()
    {
        if (LoggerOn)
        {
            Event e = Event.current;
            if (e.isKey)
            {
                //Debug.Log("Detected key code: " + e.keyCode + "   "+e.character);
                if (smallLetters.Contains(e.character))
                {
                    selectedKey = e.character;
                    type = "small";
                    keyId++;
                }
                if (capitalLetters.Contains(e.character))
                {
                    selectedKey = e.character;
                    type = "capital";
                    keyId++;
                }
                if (numbers.Contains(e.character))
                {
                    selectedKey = e.character;

                    type = "num";
                    keyId++;
                }
                if ((e.keyCode >= KeyCode.A && e.keyCode <= KeyCode.Z) || (e.keyCode >= KeyCode.Alpha0 && e.keyCode <= KeyCode.Alpha9) || (e.keyCode >= KeyCode.Keypad0 && e.keyCode <= KeyCode.Keypad9))
                {
                    selectedKeyCode = e.keyCode;
                }
                anyKey = e.keyCode;
            }

        }
    }
    void Update()
    {
        if (LoggerOn)
        {
            if (fingerFlying == true)
            {
                FT += Time.deltaTime;
            }

            if (Input.anyKeyDown)
            {
                fingerFlying = false;
                currentKey = new KeyVector();
                timeKeyPressed += Time.deltaTime;
                if (Input.touchCount > 0)
                {
                    currentKey.xCoordinate = Input.touches[0].position.x;
                    currentKey.yCoordinate = Input.touches[0].position.y;
                    currentKey.pressureDown = Input.touches[0].pressure;
                    currentKey.sizeDown = Input.touches[0].radius;
                }
                MeasureSensors();
                updateCount++;
                currentKey.timeFT1 = FT;
                currentKey.pwdID = control.count;
                FT = 0;

            }
            if (Input.anyKey)
            {
                MeasureSensors();
                updateCount++;
                timeKeyPressed += Time.deltaTime;
            }
            if (Input.GetKeyUp(selectedKeyCode))
            {
                fingerFlying = true;
                currentKey.userName = control.username;
                currentKey.timestamp = DateTime.Now;

                currentKey.timeDT = timeKeyPressed;
                currentKey.keyId = keyId;
                if (lastKeyPressed != 0)
                {
                    currentKey.timeFT2 = currentKey.timeFT1 + currentKey.timeDT;
                    currentKey.timeFT3 = lastKeyPressed + currentKey.timeFT1;
                    currentKey.timeFT4 = lastKeyPressed + currentKey.timeFT1 + currentKey.timeDT;
                    currentKey.lastKey = lastKey;
                }
                currentKey.keyPressed = selectedKey;
                if (Input.touchCount > 0)
                {
                    currentKey.pressureUp = Input.touches[0].pressure;
                    currentKey.sizeUp = Input.touches[0].radius;
                }
                currentKey.gyroscopeX /= updateCount;
                currentKey.gyroscopeY /= updateCount;
                currentKey.gyroscopeZ /= updateCount;
                currentKey.accelX /= updateCount;
                currentKey.accelY /= updateCount;
                currentKey.accelZ /= updateCount;
                currentKey.rotX /= updateCount;
                currentKey.rotY /= updateCount;
                currentKey.rotZ /= updateCount;

                lastKeyPressed = timeKeyPressed;
                timeKeyPressed = 0;
                lastKey = selectedKey;
                updateCount = 0;
                KeyLogs.Add(currentKey);
                Debug.Log(currentKey.keyPressed +"  "+ currentKey.timeDT +"  "+ currentKey.timeFT1);

            }
            else if (Input.GetKeyUp(anyKey) && anyKey != KeyCode.None)
            {
                fingerFlying = true;
                timeKeyPressed = 0;
                currentKey = new KeyVector();
                updateCount = 0;
            }

        }
    }
    public void MeasureSensors()
    {
        if (SystemInfo.supportsGyroscope) {
            currentKey.gyroscopeX += Input.gyro.attitude.x;
            currentKey.gyroscopeY += Input.gyro.attitude.y;
            currentKey.gyroscopeZ += Input.gyro.attitude.z;
            currentKey.rotX += Input.gyro.rotationRate.x;
            currentKey.rotY += Input.gyro.rotationRate.y;
            currentKey.rotZ += Input.gyro.rotationRate.z;
        }
        if (SystemInfo.supportsAccelerometer) {
            currentKey.accelX += Input.acceleration.x;
            currentKey.accelY += Input.acceleration.y;
            currentKey.accelZ += Input.acceleration.z;
        }
    }
    void Restart()
    {
        FT = 0;
        fingerFlying = false;
        timeKeyPressed = 0;
        lastKeyPressed = 0;
        keyId = 0;
        updateCount = 0;
        type = "";
        selectedKeyCode = KeyCode.CapsLock;
    }
    public void TurnOff()
    {
        Restart();
        LoggerOn = false;

    }
    public void TurnOn()
    {
        Restart();
        LoggerOn = true;
    }
}