using Noesis;
using UnityEngine;
using GUI = Noesis.GUI;
using NoesisColor = Noesis.Color;
using NoesisEventArgs = Noesis.EventArgs;

namespace StellarConquest.Presentation.Unity.UI
{
    public sealed class MapIndicatorControl : UserControl
    {
        private View _View;
        private FrameworkElement _Root;
        private Rectangle _Rectangle;
        private SCMinimalSVGButton _Button;

        public MapIndicatorControl()
        {
            if (!Application.isPlaying)
                return;

            Initialized += OnInitialized;
            InitializeComponent();
        }

        private void InitializeComponent()
        {
            GUI.LoadComponent(this, "Assets/User Interface/Screens/Game/Static/Map/MapIndicatorControl.xaml");

            Loaded += (sender, e) =>
            {
                _View = View;
                _View.Rendering += OnRendering;
            };
            Unloaded += (sender, e) =>
            {
                _View.Rendering -= OnRendering;
                _View = null;
            };

            _Root = Content as FrameworkElement;
            _Rectangle = _Root.FindName(nameof(_Rectangle)) as Rectangle;
            _Button = _Root.FindName(nameof(_Button)) as SCMinimalSVGButton;
        }

        private void OnInitialized(object sender, NoesisEventArgs args)
        {
        }

        public void SetSVG(NoesisColor color)
        {
        }

        private void OnRendering(object sender, NoesisEventArgs e)
        {
            if (SessionState.Instance.StarSystem == null)
                return;

            float scalar = 4;

            // position indicator in world space coordinates
            float z = (SessionState.Instance.StarSystem.AbsolutePositionZ) * scalar;
            GameState.Instance.MapShipIndicatorGameObject.transform.localPosition = new Vector3(
                SessionState.Instance.StarSystem.AbsolutePosition.X * scalar,
                z,
                SessionState.Instance.StarSystem.AbsolutePosition.Y * scalar);

            _Rectangle.Visibility = Visibility.Collapsed;
            //_Rectangle.Height = z;
            //_Rectangle.Margin = new Thickness(0, 0, 0, -z);

            // billboard faces camera
            Vector3 directionToCamera = GameState.Instance.MapShipIndicatorGameObject.transform.localPosition - InputManager.Instance.CurrentCamera.transform.position;
            GameState.Instance.MapShipIndicatorGameObject.transform.localRotation = Quaternion.LookRotation(directionToCamera);
        }
    }
}