using System;
using System.Collections.Generic;
using System.Linq;

namespace Game;

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

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

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

    public ConsoleFlags flags { get; private set; }
}

[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
{
}