using System;
using UnityEngine;

namespace EnergyBarToolkit
{
	public class EnergyBarSpawnerUGUI : MonoBehaviour
	{
		public enum FindCanvasMethod
		{
			ByTag = 0,
			ByPath = 1,
			ByType = 2
		}

		public EnergyBarUGUIBase barPrefab;

		public Transform attachPoint;

		public ObjectFinder canvas = new ObjectFinder(typeof(Canvas), "/Canvas", string.Empty, ObjectFinder.Method.ByPath);

		public ObjectFinder worldCamera = new ObjectFinder(typeof(Camera), "/Main Camera", "MainCamera", ObjectFinder.Method.ByTag);

		public bool updateLookupReference;

		public bool networkInstantiate;

		public int networkGroup;

		[NonSerialized]
		[HideInInspector]
		public EnergyBarUGUIBase instance;

		public static EnergyBarUGUIBase Instantiate(UnityEngine.Object parent, EnergyBarUGUIBase barPrefab, ObjectFinder canvasFinder, ObjectFinder cameraFinder, Transform attachPoint, bool networkInstantiate, int networkGroup, bool updateLookupReference)
		{
			EnergyBarUGUIBase energyBarUGUIBase = ((!networkInstantiate) ? UnityEngine.Object.Instantiate(barPrefab) : (Network.Instantiate(barPrefab, barPrefab.transform.position, barPrefab.transform.rotation, networkGroup) as EnergyBarUGUIBase));
			if (canvasFinder.chosenMethod == ObjectFinder.Method.ByType)
			{
				energyBarUGUIBase.transform.SetParent(canvasFinder.Lookup<Canvas>(parent).transform, true);
			}
			else
			{
				energyBarUGUIBase.transform.SetParent(canvasFinder.Lookup<Transform>(parent), true);
			}
			EnergyBarFollowObject energyBarFollowObject = energyBarUGUIBase.GetComponent<EnergyBarFollowObject>();
			if (energyBarFollowObject == null)
			{
				energyBarFollowObject = energyBarUGUIBase.gameObject.AddComponent<EnergyBarFollowObject>();
			}
			energyBarFollowObject.worldCamera = cameraFinder;
			energyBarFollowObject.followObject = attachPoint.gameObject;
			energyBarFollowObject.updateLookupReference = updateLookupReference;
			return energyBarUGUIBase;
		}

		private void OnEnable()
		{
			if (instance == null)
			{
				instance = Instantiate(this, barPrefab, canvas, worldCamera, attachPoint, networkInstantiate, networkGroup, updateLookupReference);
			}
			if (instance != null)
			{
				instance.gameObject.SetActive(true);
			}
		}

		private void OnDisable()
		{
			if (instance != null)
			{
				instance.gameObject.SetActive(false);
			}
		}

		private void OnDestroy()
		{
			if (instance != null)
			{
				if (networkInstantiate)
				{
					Network.Destroy(instance.gameObject);
				}
				else
				{
					UnityEngine.Object.Destroy(instance.gameObject);
				}
			}
		}
	}
}