@using Sandbox.Services
@using System.Threading.Tasks
@inherits PanelComponent

<root class="@(_open ? "open" : "")">
	@if ( _open )
	{
		@foreach ( var view in Boards() )
		{
			<div class="board">
				<div class="title">@view.Title</div>

				@if ( view.Board is not null && view.Board.Entries.Length > 0 )
				{
					@foreach ( var e in view.Board.Entries )
					{
						<div class="row @(e.SteamId == _localSteamId ? "me" : "")">
							<span class="rank">@e.Rank</span>
							<span class="name">@e.DisplayName</span>
							<span class="value">@e.Value.ToString( "N0" )</span>
						</div>
					}
				}
				else
				{
					<div class="row empty"><span class="name">No scores yet</span></div>
				}
			</div>
		}
	}
</root>

@code
{
	private bool _open;
	private bool _refreshing;

	private Leaderboards.Board2 _scoreBoard;
	private Leaderboards.Board2 _comboBoard;

	private long _localSteamId => (long)Sandbox.Utility.Steam.SteamId;

	private record BoardView( Leaderboards.Board2 Board, string Title );

	private IEnumerable<BoardView> Boards()
	{
		yield return new BoardView( _scoreBoard, "Total Score" );
		yield return new BoardView( _comboBoard, "Best Combo" );
	}

	protected override void OnUpdate()
	{
		var down = Input.Down( "Score" );
		if ( down == _open )
			return;

		_open = down;
		if ( _open )
			_ = RefreshBoards();

		StateHasChanged();
	}

	private async Task RefreshBoards()
	{
		if ( _refreshing )
			return;

		if ( _scoreBoard is null )
		{
			_scoreBoard = Leaderboards.GetFromStat( "total_score" );
			_scoreBoard.SetAggregationSum();
			_scoreBoard.SetSortDescending();
			_scoreBoard.MaxEntries = 10;
		}

		if ( _comboBoard is null )
		{
			_comboBoard = Leaderboards.GetFromStat( "best_combo" );
			_comboBoard.SetAggregationMax();
			_comboBoard.SetSortDescending();
			_comboBoard.MaxEntries = 10;
		}

		if ( _scoreBoard is null || _comboBoard is null )
			return;

		_refreshing = true;
		try
		{
			await _scoreBoard.Refresh();
			await _comboBoard.Refresh();
		}
		finally
		{
			_refreshing = false;
		}

		StateHasChanged();
	}

	protected override int BuildHash() => System.HashCode.Combine( _open, _scoreBoard?.Entries.Length, _comboBoard?.Entries.Length );
}