using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using BITKit.Modification;
using UnityEngine;

namespace BITFALL.Cosmetic
{
	[Serializable]
	public struct CosmeticServiceSingleton:ICosmeticService
	{
		public ICosmetic[] Cosmetics=>CosmeticService.Singleton.Cosmetics;
		public event Action OnCosmeticsChanged
		{
			add => CosmeticService.Singleton.OnCosmeticsChanged += value;
			remove => CosmeticService.Singleton.OnCosmeticsChanged -= value;
		}

		public IDictionary<IModifyElement, object> Modifies { get; set; }
		public IDictionary<IModifyElement, object> Modified { get; set; }
		public void Add(IModifyElement modify, object obj)=>CosmeticService.Singleton.Add(modify,obj);

		public void Remove(IModifyElement modify, out object obj)=>CosmeticService.Singleton.Remove(modify,out obj);
	}
	public class CosmeticService : MonoBehaviour,ICosmeticService
	{
		internal static ICosmeticService Singleton { get; private set; }
		
		[SerializeField] private AssetableCosmetic[] initialCosmetics;
		public ICosmetic[] Cosmetics { get; set; } = Array.Empty<ICosmetic>();
		
		public event Action OnCosmeticsChanged;

		private void Awake()
		{
			Singleton = this;
		}

		private void Start()
		{
			Cosmetics = initialCosmetics.OfType<ICosmetic>().ToArray();
			OnCosmeticsChanged?.Invoke();
		}
		private readonly IModifyManager _modifyManager = new ModifyManager();
		public IDictionary<IModifyElement, object> Modifies => _modifyManager.Modifies;
		public IDictionary<IModifyElement, object> Modified => _modifyManager.Modified;

		public void Add(IModifyElement modify, object obj)
		{
				_modifyManager.Add(modify, obj);
				OnCosmeticsChanged?.Invoke();
		}
		public void Remove(IModifyElement modify, out object obj)
		{
				_modifyManager.Remove(modify, out obj);
				OnCosmeticsChanged?.Invoke();
		}
	}
}