using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;


namespace WulaClicker
{
    public partial class Form1 : Form
    {
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

        public static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint cButtons, uint dwExtraInfo);

        private const uint MOUSEEVENTF_LEFTDOWN = 0x02;
        private const uint MOUSEEVENTF_LEFTUP = 0x04;
        private const uint MOUSEEVENTF_RIGHTDOWN = 0x08;
        private const uint MOUSEEVENTF_RIGHTUP = 0x10;

        public Thread autoClickerThread;
        public Random random = new Random();
        public bool recordingHotkey = false;
        public bool AutoClickerRunning = false;
        public List<Keys> KeysDown = new List<Keys>();
        public Keys CurrentHotkey = Keys.D9;
        public bool CurrentHotkey_Ctrl = true;
        public bool CurrentHotkey_Alt = false;
        public bool CurrentHotkey_Shift = true;


        /// <summary>
        /// Hotkey event handler
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void Form_KeyDown(object sender, KeyEventArgs e)
        {
            if (recordingHotkey)
            {
                CurrentHotkey_Shift = e.Shift;
                CurrentHotkey_Ctrl = e.Control;
                CurrentHotkey_Alt = e.Alt;

                KeysDown.Add(e.KeyCode);
                e.SuppressKeyPress = true;  // Stops other controls on the form receiving event.
            }
            if (e.KeyCode == CurrentHotkey)
            {
                int quota = 3;
                int numFactors = 0;
                if (e.Alt)
                {
                    if (CurrentHotkey_Alt)
                    {
                        numFactors++;
                    }
                }
                else
                {
                    if (!CurrentHotkey_Alt)
                    {
                        numFactors++;
                    }
                }

                if (e.Shift)
                {
                    if (CurrentHotkey_Shift)
                    {
                        numFactors++;
                    }
                }
                else
                {
                    if (!CurrentHotkey_Shift)
                    {
                        numFactors++;
                    }
                }

                if (e.Control)
                {
                    if (CurrentHotkey_Ctrl)
                    {
                        numFactors++;
                    }
                }
                else
                {
                    if (!CurrentHotkey_Ctrl)
                    {
                        numFactors++;
                    }
                }
                if (numFactors >= quota)
                {
                    if (AutoClickerRunning)
                    {
                        StopAutoClicker();
                    }
                    if (!AutoClickerRunning)
                    {
                        autoClickerThread = new Thread(new ThreadStart(StartAutoClicker));
                    }
                }
            }
        }

        void Form_KeyUp(object sender, KeyEventArgs e)
        {
            if (recordingHotkey)
            {
                CurrentHotkey_Shift = e.Shift;
                CurrentHotkey_Ctrl = e.Control;
                CurrentHotkey_Alt = e.Alt;
                if (!e.Shift && !e.Control && !e.Alt)
                {
                    recordingHotkey = false;
                    hotkeyButton.BackColor = Color.FromKnownColor(KnownColor.ControlLight);
                }

            }
        }


        public void HotkeyButton_Click(Object sender, EventArgs e)
        {
            hotkeyButton.BackColor = Color.FromArgb(255, 128, 128);
            recordingHotkey = true;
        }

        public void AboutButton_Click(Object sender, EventArgs e)
        {
            About.ShowDialog();
        }

        public void ClickSequence(int numberOfClicks)
        {
            for (int i = 1; i <= numberOfClicks; i++)
            {
                int sleepTime = SingleClick();
                Thread.Sleep(sleepTime);
            }
        }

        public void ClickMouse()
        {
            //Call the imported function with the cursor's current position
            uint X = (uint)Cursor.Position.X;
            uint Y = (uint)Cursor.Position.Y;
            mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, X, Y, (uint)0, (uint)0);
        }

        public int SingleClick()
        {
            double interval = 0.0;
            if (delayAfterClickBox.Checked)
            {
                ClickMouse();
                int min = (int)delayAfterClick_MinDelay.Value;
                int max = (int)delayAfterClick_MaxDelay.Value;
                interval = random.NextDouble() + (double)random.Next(min, max);
            }
            return (int)(interval * 1000.0);
        }


        public void StartAutoClicker()
        {
            AutoClickerRunning = true;
            BackColor = Color.FromArgb(255, 128, 128);

            while (AutoClickerRunning)
            {
                int min = (int)delayAfterClicks_MinDelay.Value;
                int max = (int)delayAfterClicks_MaxDelay.Value;

                int minC = (int)delayAfterClicks_MinClicks.Value * 1000;
                int maxC = (int)delayAfterClicks_MaxClicks.Value * 1000;
                int clix = random.Next(minC, maxC);
                double interval = random.NextDouble() + (double)random.Next(min, max);
                ClickSequence(clix);
                Thread.Sleep((int)(interval * 1000.0));
            }
        }

        public void StopAutoClicker()
        {
            this.BackColor = Color.FromKnownColor(KnownColor.Control);
            AutoClickerRunning = false;
        }

        public Form1()
        {
            InitializeComponent();
        }
    }
}