using System;
using System.Collections.Generic;
using CIGEnums;
using SUISS.Core;
using UnityEngine;

namespace SUISSEngine
{
	public class GridTileIconManager : MonoBehaviour
	{
		private void Start()
		{
			SingletonMonobehaviour<OverlayManager>.Instance.InteractionEnabledChangedEvent += this.OnInteractionEnabledChanged;
		}

		private void OnDestroy()
		{
			if (SingletonMonobehaviour<OverlayManager>.IsAvailable)
			{
				SingletonMonobehaviour<OverlayManager>.Instance.InteractionEnabledChangedEvent -= this.OnInteractionEnabledChanged;
			}
		}

		public T SetIcon<T>(GridTileIconType iconType) where T : GridTileIcon
		{
			if (this._icons.ContainsKey(iconType))
			{
				return (T)((object)this._icons[iconType]);
			}
			GridTileIcon asset = SingletonMonobehaviour<GridTileIconAssetCollection>.Instance.GetAsset(iconType);
			GridTileIcon gridTileIcon = SingletonMonobehaviour<OverlayManager>.Instance.CreateOverlay<GridTileIcon>(base.gameObject, asset.gameObject);
			gridTileIcon.GridTileIconDestroyedEvent += this.OnGridTileIconDestroyed;
			this._icons.Add(iconType, gridTileIcon);
			this.RefreshCurrentIcon();
			return (T)((object)gridTileIcon);
		}

		public void RemoveIcon(GridTileIconType iconType)
		{
			GridTileIcon gridTileIcon;
			if (this._icons.TryGetValue(iconType, out gridTileIcon))
			{
				gridTileIcon.Remove();
				this._icons.Remove(iconType);
				this.RefreshCurrentIcon();
			}
		}

		public void HideIcon()
		{
			if (this._currentIcon != null)
			{
				this._currentIcon.Hide();
			}
		}

		public void ShowIcon()
		{
			if (this._currentIcon != null && !SingletonMonobehaviour<OverlayManager>.Instance.InteractionDisabled)
			{
				this._currentIcon.Show();
			}
		}

		private void RefreshCurrentIcon()
		{
			GridTileIcon gridTileIcon = null;
			foreach (KeyValuePair<GridTileIconType, GridTileIcon> keyValuePair in this._icons)
			{
				if (gridTileIcon == null || keyValuePair.Value.Priority > gridTileIcon.Priority)
				{
					gridTileIcon = keyValuePair.Value;
				}
				keyValuePair.Value.Hide();
			}
			this._currentIcon = gridTileIcon;
			this.ShowIcon();
		}

		private void OnInteractionEnabledChanged(bool interactionEnabled)
		{
			if (interactionEnabled)
			{
				this.ShowIcon();
			}
			else
			{
				this.HideIcon();
			}
		}

		private void OnGridTileIconDestroyed(GridTileIcon icon)
		{
			foreach (KeyValuePair<GridTileIconType, GridTileIcon> keyValuePair in this._icons)
			{
				if (keyValuePair.Value == icon)
				{
					this._icons.Remove(keyValuePair.Key);
					break;
				}
			}
			icon.GridTileIconDestroyedEvent -= this.OnGridTileIconDestroyed;
		}

		private readonly Dictionary<GridTileIconType, GridTileIcon> _icons = new Dictionary<GridTileIconType, GridTileIcon>();

		private GridTileIcon _currentIcon;
	}
}