using System;
using TG_TouchGesture;
using UnityEngine;

namespace LE_LevelEditor.LEInput
{
	public class LE_InputDeviceTouchscreen : LE_InputDeviceBase
	{
		private const float ZOOM_SENSITIVITY = 1500f;

		private int m_lastCursorActivationFrame = -100;

		public LE_InputDeviceTouchscreen(LE_IInputHandler p_inputHandler)
			: base(p_inputHandler)
		{
			TG_TouchGestures.Instance.EnableGesture(TG_ETouchGestureType.PRESS_1_FINGER);
			TG_TouchGestures.Instance.EnableGesture(TG_ETouchGestureType.PRESS_2_FINGER);
			TG_TouchGestures.Instance.EnableGesture(TG_ETouchGestureType.PRESS_3_FINGER);
			TG_TouchGestures.Instance.EnableGesture(TG_ETouchGestureType.ZOOM);
			TG_TouchGestures instance = TG_TouchGestures.Instance;
			instance.OnGestureDetected = (EventHandler<TG_TouchGestureEventArgs>)Delegate.Combine(instance.OnGestureDetected, new EventHandler<TG_TouchGestureEventArgs>(OnTouchGestureDetected));
		}

		public override void Update()
		{
			if (m_lastCursorActivationFrame != Time.frameCount)
			{
				m_inputHandler.SetIsCursorAction(false);
			}
		}

		public override void Destroy()
		{
			if (TG_TouchGestures.IsInstanceSet)
			{
				TG_TouchGestures instance = TG_TouchGestures.Instance;
				instance.OnGestureDetected = (EventHandler<TG_TouchGestureEventArgs>)Delegate.Remove(instance.OnGestureDetected, new EventHandler<TG_TouchGestureEventArgs>(OnTouchGestureDetected));
			}
		}

		private void OnTouchGestureDetected(object p_object, TG_TouchGestureEventArgs p_args)
		{
			switch (p_args.Type)
			{
			case TG_ETouchGestureType.PRESS_1_FINGER:
			{
				Vector2 position3 = p_args.Position;
				m_inputHandler.SetCursorPosition(new Vector3(position3.x, position3.y, 0f));
				m_inputHandler.SetIsCursorAction(true);
				m_lastCursorActivationFrame = Time.frameCount;
				break;
			}
			case TG_ETouchGestureType.PRESS_2_FINGER:
			{
				Vector2 position2 = p_args.Position;
				Vector2 delta2 = p_args.Delta;
				m_inputHandler.RotateCamera(position2, position2 + delta2);
				break;
			}
			case TG_ETouchGestureType.PRESS_3_FINGER:
			{
				Vector2 position = p_args.Position;
				Vector2 delta = p_args.Delta;
				m_inputHandler.MoveCamera(position, position - delta);
				break;
			}
			case TG_ETouchGestureType.ZOOM:
			{
				float x = p_args.Delta.x;
				m_inputHandler.MoveCamera(Vector3.zero, Vector3.forward * x * 1500f);
				break;
			}
			}
		}
	}
}