using System.Linq;
using System.Security.Claims;

namespace Gameboard.ShogiUI.Sockets.Extensions
{
  public static class Extensions
  {
    public static string? UserId(this ClaimsPrincipal self)
    {
      return self.Claims.FirstOrDefault(c => c.Type == ClaimTypes.NameIdentifier)?.Value;
    }

    public static string? DisplayName(this ClaimsPrincipal self)
    {
      return self.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Name)?.Value;
    }

    public static bool IsGuest(this ClaimsPrincipal self)
    {
      return self.HasClaim(c => c.Type == ClaimTypes.Role && c.Value == "Guest");
    }

    public static string ToCamelCase(this string self)
    {
      return char.ToLowerInvariant(self[0]) + self[1..];
    }
  }
}