using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using YooAsset;

namespace BITKit.IO
{
	public class YooAssetUtils
	{
		[RuntimeInitializeOnLoadMethod]
		private static void Reload()
		{
			OnPackageRegistered = null;
			OnPackageUnregistered = null;
			_registeredPackages.Clear();
			_registeredResourcePackages.Clear();
		}
		public static event Action<string> OnPackageRegistered;
		public static event Action<string> OnPackageUnregistered;
		public static IEnumerable<string> RegisteredPackages => _registeredPackages.ToArray();
		public static IEnumerable<ResourcePackage> RegisteredResourcePackages => _registeredResourcePackages.ToArray();
		private static readonly List<ResourcePackage> _registeredResourcePackages = new();
		private static readonly List<string> _registeredPackages = new();
		
		public static void RegisterPackage(string packageName)
		{
			if (_registeredPackages.Contains(packageName))
			{
				return;
			}
			_registeredPackages.Add(packageName);
			OnPackageRegistered?.Invoke(packageName);
		}
		public static void UnregisterPackage(string packageName)
		{
			if (!_registeredPackages.Contains(packageName))
			{
				return;
			}
			_registeredPackages.Remove(packageName);
			OnPackageUnregistered?.Invoke(packageName);
		}
		public static void RegisterResourcePackage(ResourcePackage package)=>_registeredResourcePackages.Add(package);
		public static void UnregisterResourcePackage(ResourcePackage package)=>_registeredResourcePackages.Remove(package);
	}

}