using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
using WindowsInput;
using WindowsInput.Native;

namespace Tango.RemoteDesktop.Input
{
    public static class KeyboardController
    {
        private static InputSimulator simulator;

        static KeyboardController()
        {
            simulator = new InputSimulator();
        }

        public static void KeyDown(Key key, bool ctrlDown, bool shitDown, bool altDown)
        {
            VirtualKeyCode virtualKey = (VirtualKeyCode)KeyInterop.VirtualKeyFromKey(key);

            if (ctrlDown || shitDown || altDown)
            {
                List<VirtualKeyCode> modifierKeys = new List<VirtualKeyCode>();

                if (ctrlDown)
                {
                    modifierKeys.Add(VirtualKeyCode.LCONTROL);
                }
                if (shitDown)
                {
                    modifierKeys.Add(VirtualKeyCode.LSHIFT);
                }
                if (altDown)
                {
                    modifierKeys.Add(VirtualKeyCode.MENU);
                }

                simulator.Keyboard.ModifiedKeyStroke(modifierKeys, virtualKey);
            }
            else
            {
                simulator.Keyboard.KeyDown(virtualKey);
            }
        }

        public static void KeyUp(Key key, bool ctrlDown, bool shitDown, bool altDown)
        {
            VirtualKeyCode virtualKey = (VirtualKeyCode)KeyInterop.VirtualKeyFromKey(key);
            simulator.Keyboard.KeyUp(virtualKey);
        }
    }
}