using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Sandbox;

partial class Dedugan
{
	[Property] public List<string> WorkshopItems { get; set; }
	[Property] public ClothingContainer CurrentClothing { get; set; }
	public static IReadOnlyList<Dedugan> All => InternalPlayers;
	public static List<Dedugan> InternalPlayers = new List<Dedugan>();
	public List<ClothingContainer.ClothingEntry> Clothings { get; set; }
	public static Dedugan Local { get; set; }

	private Guid _guid;
	public static Dedugan FindLocalPlayer() => Local;

	[Sync( SyncFlags.FromHost )]
	public Guid ConnectionID
	{
		get => _guid;
		set
		{
			_guid = value;
			Connection = Connection.Find( _guid );

			if ( _guid == Connection.Local.Id )
			{
				Local = this;
				// ILocalPlayerEvent.Post( x => x.OnInitialized() );
			}

			InternalPlayers.RemoveAll( x => !x.IsValid() );
			if ( !InternalPlayers.Contains( this ) )
				InternalPlayers.Add( this );
		}
	}

	public Connection Connection { get; private set; }

	public ulong SteamID => Connection.SteamId;
	public string Name => Connection.DisplayName;

	public void SetupConnection( Connection connection )
	{
		ConnectionID = connection.Id;
		GameObject.Name = $"{Name} / {SteamID}";
	}

	public static Dedugan GetByID( Guid id )
		=> InternalPlayers.FirstOrDefault( x => x.ConnectionID == id );

	public void OnNetworkSpawn( Connection owner )
	{
		CurrentClothing = ClothingContainer.CreateFromJson( owner.GetUserData( "avatar" ) );

		var allowedCategories = new[]
		{
			Clothing.ClothingCategory.Skin, Clothing.ClothingCategory.Facial, Clothing.ClothingCategory.Eyes,
			Clothing.ClothingCategory.Eyebrows, Clothing.ClothingCategory.Eyelashes,
			Clothing.ClothingCategory.MakeupLips, Clothing.ClothingCategory.MakeupEyeshadow,
			Clothing.ClothingCategory.MakeupEyeliner, Clothing.ClothingCategory.MakeupHighlighter,
			Clothing.ClothingCategory.MakeupBlush, Clothing.ClothingCategory.MakeupSpecial,
			Clothing.ClothingCategory.ComplexionFreckles, Clothing.ClothingCategory.ComplexionScars,
			Clothing.ClothingCategory.ComplexionAcne, Clothing.ClothingCategory.FacialHairMustache,
			Clothing.ClothingCategory.FacialHairBeard, Clothing.ClothingCategory.FacialHairStubble,
			Clothing.ClothingCategory.FacialHairSideburns, Clothing.ClothingCategory.FacialHairGoatee,
			Clothing.ClothingCategory.PierceNose, Clothing.ClothingCategory.PierceEyebrow,
			Clothing.ClothingCategory.PierceSpecial, Clothing.ClothingCategory.Hair,
			Clothing.ClothingCategory.HairShort, Clothing.ClothingCategory.HairMedium,
			Clothing.ClothingCategory.HairLong, Clothing.ClothingCategory.HairUpdo,
			Clothing.ClothingCategory.HairSpecial,
		};

		CurrentClothing.Clothing.RemoveAll( entry => !allowedCategories.Contains( entry.Clothing.Category ) );
		CurrentClothing.Apply( Renderer );
	}

	CancellationTokenSource _cts;

	[Rpc.Broadcast]
	public async void WearWorkshop( List<string> workshopItems )
	{
		_cts = new CancellationTokenSource();
		var token = _cts.Token;

		// var clothing = new ClothingContainer();
		// clothing.AddRange( Clothings );

		if ( workshopItems != null && workshopItems.Count > 0 )
		{
			var tasks = workshopItems.Select( x => InstallWorkshopClothing( x, token ) );

			foreach ( var task in tasks )
			{
				var c = await task;

				if ( c is null )
					continue;

				CurrentClothing.Add( c );
			}
		}

		CurrentClothing.Normalize();
		CurrentClothing.Apply( Renderer );
		Renderer.PostAnimationUpdate();
	}

	[Rpc.Broadcast]
	public void StripByName( string name )
	{
		CurrentClothing.Clothing.RemoveAll( entry => entry.Clothing.Title == name );

		CurrentClothing.Normalize();
		CurrentClothing.Apply( Renderer );
		Renderer.PostAnimationUpdate();
	}


	public void CancelDressing()
	{
		_cts?.Cancel();
		_cts?.Dispose();
		_cts = default;
	}


	async Task<Clothing> InstallWorkshopClothing( string ident, CancellationToken ct )
	{
		if ( string.IsNullOrEmpty( ident ) ) return default;

		var package = await Package.FetchAsync( ident, false );
		if ( package is null ) return default;
		if ( package.TypeName != "clothing" ) return default;
		if ( ct.IsCancellationRequested ) return default;

		var primaryAsset = package.GetMeta<string>( "PrimaryAsset" );
		if ( string.IsNullOrWhiteSpace( primaryAsset ) ) return default;

		var fs = await package.MountAsync();
		if ( fs is null ) return default;
		if ( ct.IsCancellationRequested ) return default;

		// try to load it
		return ResourceLibrary.Get<Clothing>( primaryAsset );
	}
}