using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

namespace BlockSpace.Worlds
{
	[DisallowMultipleComponent]
	public sealed class WorldLoadingScreenController : MonoBehaviour
	{
		private struct CameraState
		{
			public CameraClearFlags clearFlags;

			public Color backgroundColor;
		}

		private struct RigidbodyState
		{
			public Vector3 linearVelocity;

			public Vector3 angularVelocity;
		}

		[SerializeField]
		private GameObject loadingScreenObject;

		[SerializeField]
		private Slider progressSlider;

		[SerializeField]
		private bool hideSceneWhileLoading = true;

		[SerializeField]
		private int requiredTeleportsToComplete = 2;

		private readonly Dictionary<Renderer, bool> rendererStates = new Dictionary<Renderer, bool>();

		private readonly Dictionary<Canvas, bool> canvasStates = new Dictionary<Canvas, bool>();

		private readonly Dictionary<Graphic, bool> graphicStates = new Dictionary<Graphic, bool>();

		private readonly Dictionary<Camera, CameraState> cameraStates = new Dictionary<Camera, CameraState>();

		private readonly Dictionary<Behaviour, bool> movementBehaviourStates = new Dictionary<Behaviour, bool>();

		private readonly Dictionary<Rigidbody, RigidbodyState> rigidbodyStates = new Dictionary<Rigidbody, RigidbodyState>();

		private bool loading;

		private int completedTeleports;

		public static WorldLoadingScreenController Instance { get; private set; }

		public bool IsLoading => loading;

		public static event Action LoadingFinished;

		public void Configure(GameObject screenObject, Slider slider)
		{
			if (screenObject != null)
			{
				loadingScreenObject = screenObject;
			}
			if (slider != null)
			{
				progressSlider = slider;
			}
			if (!loading)
			{
				SetScreenVisible(visible: false);
			}
		}

		private void Awake()
		{
			if (Instance != null && Instance != this)
			{
				Debug.LogWarning("Multiple WorldLoadingScreenController instances found. Using the latest active instance.", this);
			}
			Instance = this;
			SetScreenVisible(visible: false);
			SetProgress(0f);
		}

		private void OnDisable()
		{
			SetLoading(isLoading: false);
		}

		private void OnDestroy()
		{
			if (Instance == this)
			{
				Instance = null;
			}
		}

		public void BeginLoading(float initialProgress = 0f)
		{
			completedTeleports = 0;
			SetLoading(isLoading: true);
			SetProgress(initialProgress);
		}

		public void SetLoading(bool isLoading)
		{
			if (loading == isLoading)
			{
				SetScreenVisible(isLoading);
				return;
			}
			loading = isLoading;
			SetScreenVisible(isLoading);
			if (hideSceneWhileLoading)
			{
				if (isLoading)
				{
					HideScene();
				}
				else
				{
					RestoreScene();
				}
			}
			if (isLoading)
			{
				DisableMovement();
			}
			else
			{
				RestoreMovement();
			}
			if (!isLoading)
			{
				completedTeleports = 0;
				SetProgress(0f);
				WorldLoadingScreenController.LoadingFinished?.Invoke();
			}
		}

		public void SetCheckpoint(float progress)
		{
			if (loading && (!(progressSlider != null) || !(progress < progressSlider.value)))
			{
				SetProgress(progress);
			}
		}

		public void NotifyLocalPlayerTeleported(bool forceComplete = false)
		{
			if (loading)
			{
				completedTeleports++;
				if (!forceComplete && completedTeleports < Mathf.Max(1, requiredTeleportsToComplete))
				{
					SetCheckpoint(0.97f);
				}
				else
				{
					CompleteLoading();
				}
			}
		}

		public void CompleteLoading()
		{
			if (loading)
			{
				SetProgress(1f);
				SetLoading(isLoading: false);
			}
		}

		public void SetProgress(float progress)
		{
			if (loading && hideSceneWhileLoading)
			{
				HideScene();
			}
			if (!(progressSlider == null))
			{
				progressSlider.minValue = 0f;
				progressSlider.maxValue = 1f;
				progressSlider.value = Mathf.Clamp01(progress);
			}
		}

		private void SetScreenVisible(bool visible)
		{
			if (loadingScreenObject != null)
			{
				loadingScreenObject.SetActive(visible);
			}
		}

		private void HideScene()
		{
			Transform loadingRoot = ((loadingScreenObject != null) ? loadingScreenObject.transform : base.transform);
			Renderer[] array = UnityEngine.Object.FindObjectsByType<Renderer>(FindObjectsInactive.Include, FindObjectsSortMode.None);
			foreach (Renderer renderer in array)
			{
				if (!(renderer == null) && !rendererStates.ContainsKey(renderer) && !IsInsideLoadingScreen(renderer.transform, loadingRoot))
				{
					rendererStates[renderer] = renderer.enabled;
					renderer.enabled = false;
				}
			}
			Canvas[] array2 = UnityEngine.Object.FindObjectsByType<Canvas>(FindObjectsInactive.Include, FindObjectsSortMode.None);
			foreach (Canvas canvas in array2)
			{
				if (!(canvas == null) && !canvasStates.ContainsKey(canvas) && !IsInsideLoadingScreen(canvas.transform, loadingRoot))
				{
					canvasStates[canvas] = canvas.enabled;
					canvas.enabled = false;
				}
			}
			Graphic[] array3 = UnityEngine.Object.FindObjectsByType<Graphic>(FindObjectsInactive.Include, FindObjectsSortMode.None);
			foreach (Graphic graphic in array3)
			{
				if (!(graphic == null) && !graphicStates.ContainsKey(graphic) && !IsInsideLoadingScreen(graphic.transform, loadingRoot))
				{
					graphicStates[graphic] = graphic.enabled;
					graphic.enabled = false;
				}
			}
			Camera[] array4 = UnityEngine.Object.FindObjectsByType<Camera>(FindObjectsInactive.Include, FindObjectsSortMode.None);
			foreach (Camera camera in array4)
			{
				if (!(camera == null) && !cameraStates.ContainsKey(camera))
				{
					cameraStates[camera] = new CameraState
					{
						clearFlags = camera.clearFlags,
						backgroundColor = camera.backgroundColor
					};
					camera.clearFlags = CameraClearFlags.Color;
					camera.backgroundColor = Color.black;
				}
			}
		}

		private void RestoreScene()
		{
			foreach (KeyValuePair<Renderer, bool> rendererState in rendererStates)
			{
				if (rendererState.Key != null)
				{
					rendererState.Key.enabled = rendererState.Value;
				}
			}
			foreach (KeyValuePair<Canvas, bool> canvasState in canvasStates)
			{
				if (canvasState.Key != null)
				{
					canvasState.Key.enabled = canvasState.Value;
				}
			}
			foreach (KeyValuePair<Graphic, bool> graphicState in graphicStates)
			{
				if (graphicState.Key != null)
				{
					graphicState.Key.enabled = graphicState.Value;
				}
			}
			foreach (KeyValuePair<Camera, CameraState> cameraState in cameraStates)
			{
				if (cameraState.Key != null)
				{
					cameraState.Key.clearFlags = cameraState.Value.clearFlags;
					cameraState.Key.backgroundColor = cameraState.Value.backgroundColor;
				}
			}
			rendererStates.Clear();
			canvasStates.Clear();
			graphicStates.Clear();
			cameraStates.Clear();
		}

		private void DisableMovement()
		{
			Behaviour[] array = UnityEngine.Object.FindObjectsByType<Behaviour>(FindObjectsInactive.Include, FindObjectsSortMode.None);
			foreach (Behaviour behaviour in array)
			{
				if (!(behaviour == null) && !movementBehaviourStates.ContainsKey(behaviour) && IsMovementBehaviour(behaviour))
				{
					movementBehaviourStates[behaviour] = behaviour.enabled;
					behaviour.enabled = false;
				}
			}
			Rigidbody[] array2 = UnityEngine.Object.FindObjectsByType<Rigidbody>(FindObjectsInactive.Include, FindObjectsSortMode.None);
			foreach (Rigidbody rigidbody in array2)
			{
				if (!(rigidbody == null) && !rigidbodyStates.ContainsKey(rigidbody))
				{
					rigidbodyStates[rigidbody] = new RigidbodyState
					{
						linearVelocity = rigidbody.linearVelocity,
						angularVelocity = rigidbody.angularVelocity
					};
					rigidbody.linearVelocity = Vector3.zero;
					rigidbody.angularVelocity = Vector3.zero;
				}
			}
		}

		private void RestoreMovement()
		{
			foreach (KeyValuePair<Behaviour, bool> movementBehaviourState in movementBehaviourStates)
			{
				if (movementBehaviourState.Key != null)
				{
					movementBehaviourState.Key.enabled = movementBehaviourState.Value;
				}
			}
			foreach (KeyValuePair<Rigidbody, RigidbodyState> rigidbodyState in rigidbodyStates)
			{
				if (rigidbodyState.Key != null)
				{
					rigidbodyState.Key.linearVelocity = rigidbodyState.Value.linearVelocity;
					rigidbodyState.Key.angularVelocity = rigidbodyState.Value.angularVelocity;
				}
			}
			movementBehaviourStates.Clear();
			rigidbodyStates.Clear();
		}

		private bool IsMovementBehaviour(Behaviour behaviour)
		{
			if (behaviour == this)
			{
				return false;
			}
			string text = behaviour.GetType().Name;
			if (!((behaviour.GetType().FullName ?? string.Empty) == "GorillaLocomotion.Player") && !(text == "DesktopRigController") && !(text == "CreatorFlightController") && !text.Contains("LocomotionProvider") && !text.Contains("MoveProvider") && !text.Contains("TurnProvider") && !text.Contains("JumpProvider") && !text.Contains("TeleportationProvider") && !text.Contains("ClimbProvider") && !text.Contains("ContinuousMove") && !text.Contains("DynamicMove") && !text.Contains("SnapTurn"))
			{
				return text.Contains("SmoothTurn");
			}
			return true;
		}

		private bool IsInsideLoadingScreen(Transform target, Transform loadingRoot)
		{
			if (target != null && loadingRoot != null)
			{
				if (!(target == loadingRoot) && !target.IsChildOf(loadingRoot))
				{
					return loadingRoot.IsChildOf(target);
				}
				return true;
			}
			return false;
		}
	}
}