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

namespace Cabrito
{
	[AttributeUsage(AttributeTargets.All)]
	public abstract class ConsoleBaseAttribute : Attribute
	{
		internal string name;

		// Additional aliases for this command, these should only be used with user interaction.
		// Commands such as 'cvarlist' should not list these in order to avoid clutter.
		internal string[] aliases = new string[0];

		public ConsoleFlags flags { get; private set; }

		public ConsoleBaseAttribute(string name)
		{
			this.name = name.ToLowerInvariant();
		}

		public ConsoleBaseAttribute(params string[] names)
		{
			this.name = names[0].ToLowerInvariant();
			aliases = new List<string>(names).Skip(1).Select(x => x.ToLowerInvariant()).ToArray();
		}
	}

	[AttributeUsage(AttributeTargets.All)]
	public class ConsoleVariableAttribute : ConsoleBaseAttribute
	{
		public ConsoleVariableAttribute(string name) : base(name)
		{
		}
	}

	[AttributeUsage(AttributeTargets.All)]
	public class ConsoleCommandAttribute : ConsoleBaseAttribute
	{
		/// <summary>
		/// Registers a command to Console system.
		/// </summary>
		/// <param name="name">Name used for calling this command.</param>
		public ConsoleCommandAttribute(string name) : base(name)
		{
		}

		/// <summary>
		/// Registers a command to Console system.
		/// </summary>
		/// <param name="names">Names used for calling this command. First name is the main name for this command, rest of the names are aliases.</param>
		public ConsoleCommandAttribute(params string[] names) : base(names)
		{
		}
	}

	/// <summary>
	/// Constructor for the subsystem, must be called first before registering console commands.
	/// </summary>
	[AttributeUsage(AttributeTargets.All)]
	public class ConsoleSubsystemInitializer : Attribute
	{

	}
}