using System.Collections.Generic;
using Comfort.Common;
using EFT;
using System.Linq;
using Terkoiz.MapZoneHighlighter.BoundedBoxes;
using TMPro;
using UnityEngine;

namespace Terkoiz.MapZoneHighlighter
{
    public class HighlightController : MonoBehaviour
    {
        private static GameWorld _gameWorld;
        private static Camera _mainCamera;
        private static TextMeshProUGUI _alphaLabel;
        private static List<ColliderBoundsController> _boundsControllers = new List<ColliderBoundsController>();

        private const float DistanceLimit = 50f;

        public void Update()
        {
            if (Input.GetKeyDown(KeyCode.F10))
            {
                _gameWorld = Singleton<GameWorld>.Instance;
                _mainCamera = Camera.main;

                if (_gameWorld == null)
                {
                    Debug.LogError($"[{nameof(HighlightController)}] GameWorld was null, skipping");
                    return;
                }

                if (_mainCamera != null && _mainCamera.gameObject.GetComponent<ColliderBoundsRenderer>() == null)
                {
                    _mainCamera.gameObject.AddComponent<ColliderBoundsRenderer>();
                }

                _boundsControllers = new List<ColliderBoundsController>();
                foreach (var mapZone in FindObjectsOfType<EFT.Interactive.TriggerWithId>().Select(x => x.gameObject).ToList())
                {
                    if (mapZone.GetComponent<ColliderBoundsController>() == null)
                    {
                        mapZone.AddComponent<ColliderBoundsController>();
                    }

                    _boundsControllers.Add(mapZone.GetComponent<ColliderBoundsController>());
                }
            }

            if (Input.GetKeyDown(KeyCode.F9))
            {
                if (_mainCamera == null)
                {
                    return;
                }

                if (_alphaLabel == null)
                {
                    _alphaLabel = GameObject.Find("AlphaLabel").GetComponent<TextMeshProUGUI>();
                    _alphaLabel.color = Color.green;
                    _alphaLabel.fontSize = 22;
                    _alphaLabel.font = Resources.Load<TMP_FontAsset>("Fonts & Materials/ARIAL SDF");
                }
                
                _alphaLabel.text = string.Empty;

                foreach (var boundsController in _boundsControllers)
                {
                    boundsController.IsActive = false;
                }

                var ray = Camera.main.ScreenPointToRay(new Vector3(Screen.width / 2, Screen.height / 2, 0));
                if (Physics.Raycast(ray, out var hitPoint, DistanceLimit, LayerMask.GetMask("Triggers")))
                {
                    var trigger = hitPoint.transform.gameObject.GetComponent<EFT.Interactive.TriggerWithId>();
                    if (trigger != null && _alphaLabel != null)
                    {
                        trigger.GetComponent<ColliderBoundsController>().IsActive = true;
                        _alphaLabel.text = $"{trigger.GetType().Name.Split('.').Last()} Id: {trigger.Id}";
                        Debug.LogError(_alphaLabel.text);
                    }
                }
            }
        }

        public void OnGUI()
        {
            if (_mainCamera == null || _gameWorld == null)
            {
                return;
            }

            foreach (var boundsController in _boundsControllers)
            {
                if (!boundsController.IsOnScreen || boundsController.DistanceToCamera > DistanceLimit)
                {
                    continue;
                }

                UIDrawingUtil.DrawString(
                    new Vector2(boundsController.ScreenPosition.x, boundsController.ScreenPosition.y), 
                    boundsController.transform.GetComponent<EFT.Interactive.TriggerWithId>().Id,
                    boundsController.IsActive ? ColliderBoundsController.ActiveLineColor : ColliderBoundsController.InactiveLineColor);
            }
        }
    }
}