namespace NiuLai;

/// <summary>Non-blocking movie mutter. Walk while the grassland talks.</summary>
public static class Chatter
{
	public static string Who { get; private set; } = "";
	public static string Cn { get; private set; } = "";
	public static string En { get; private set; } = "";
	public static float Left { get; private set; }
	public static int Version { get; private set; }
	public static bool Visible => Left > 0f && !string.IsNullOrEmpty( Cn );

	public static void Say( string who, Line line, float sec = 2.7f )
	{
		if ( GameState.Talking || FilmCut.Playing )
			return;
		if ( string.IsNullOrEmpty( line.Cn ) )
			return;

		Who = who ?? "";
		Cn = line.Cn;
		En = line.En ?? "";
		Left = sec;
		Version++;
	}

	public static void Tick( float dt )
	{
		if ( Left <= 0f )
			return;
		Left -= dt;
		if ( Left <= 0f )
		{
			Left = 0f;
			Version++;
		}
	}

	public static Line Pick( Line[] pool )
	{
		if ( pool is not { Length: > 0 } )
			return default;
		return pool[Random.Shared.Int( 0, pool.Length - 1 )];
	}
}