using System;
using System.Collections;
using System.Collections.Generic;
using System.Windows.Forms;
using BITKit;
using BITKit.Entities;
using BITKit.Entities.Player;
using BITKit.UX;
using UnityEngine;
// ReSharper disable ConvertToAutoProperty

namespace BITFALL.Scene
{
	
	public class ActionBasedObject : MonoBehaviour,IActionBasedObject,IAction,IDescription
	{
		[SerializeReference, SubclassSelector] private IPlayerService playerService;
		[SerializeReference, SubclassSelector] private ITicker ticker;
		[SerializeReference, SubclassSelector] private IActionMode actionMode;
		[SerializeReference, SubclassSelector] private IUXPopup popup;
		[SerializeReference, SubclassSelector] private IReference actionName;
		
		[SerializeReference, SubclassSelector] private IReference completedEnv;
		
        [SerializeField] private int priority;
		
		public IActionMode ActionMode => actionMode;
		public IEntity Entity { get; private set; }
		public float ElapsedTime => Time.time - _startTime;
		private float _startTime;

		public event Action OnStarted;
		public event Action<float> OnTick;
		public event Action OnCompleted;
		public event Action OnCanceled;

		private bool _isTicking;

		public void Entry(IEntity entity)
		{
			if (Entity is not null)
				throw new InGameException("当前已经有实体在互动");

			if (entity.TryGetComponent<IEntityOverride>(out var _override) is false)
				throw new InGameException("实体没有覆盖组件");

			try
			{
				_startTime = Time.time;
				Entity = entity;
				OnStarted?.Invoke();
			}
			catch (InGameException e)
			{
				Entity = null;
				popup.Popup(e.Message);
				return;
			}
			
			_override.AddOverride(this,priority);
			
			ticker.Add(OnUpdate);
			_isTicking = true;
		}

		private void OnDestroy()
		{
			if(_isTicking)
				ticker.Remove(OnUpdate);
		}

		private void OnUpdate(float obj)
		{
			try
			{
				OnTick?.Invoke(obj);
			}
			catch (InGameException e)
			{
				popup.Popup(e.Message);
				OnCanceled?.Invoke();
				Cancel();
				return;
			}
		
			foreach (var factory in IsCompletedFactory.CastAsFunc())
			{
				try
				{
					if (factory() is false)
					{
						return;
					}
				}
				catch (InGameException e)
				{
					Cancel();
					popup.Popup(e.Message);
					OnCanceled?.Invoke();
					return;
				}
				catch (Exception)
				{
					Cancel();
					throw;
				}
			}

			Cancel();
			OnCompleted?.Invoke();

			if (completedEnv is not null)
				Data.Set(completedEnv.Value, 1);
		}

		public void Cancel()
		{
			if (Entity is null)
				throw new InGameException("当前没有实体在互动");

			if (Entity.TryGetComponent<IEntityOverride>(out var _override) is false)
				throw new InGameException("实体没有覆盖组件");
			_override.RemoveOverride(this);

			if (_isTicking)
				ticker.Remove(OnUpdate);

			Entity = null;
		}

		public event Func<bool> IsCompletedFactory;
		public void Execute()
		{
			Entry(playerService.LocalPlayer);
		}

		public string Name=>actionName is null?gameObject.name:actionName.Value;
	}
}