using Microsoft.AspNetCore.Mvc;
using System.Security.Claims;

namespace EnvelopeGenerator.GeneratorAPI.Controllers
{
    public static class ControllerExtensions
    {
        public static int? GetIdOrDefault(this ClaimsPrincipal user)
            => int.TryParse(user.FindFirstValue(ClaimTypes.NameIdentifier) ?? user.FindFirstValue("sub"), out int result)
                ? result : null;

        public static int GetId(this ClaimsPrincipal user)
            => user.GetIdOrDefault()
            ?? throw new InvalidOperationException("User ID claim is missing or invalid. This may indicate a misconfigured or forged JWT token.");

        public static string? GetUsername(this ClaimsPrincipal user)
            => user.FindFirst(ClaimTypes.Name)?.Value;
        
        public static string? GetName(this ClaimsPrincipal user)
            => user.FindFirst(ClaimTypes.Surname)?.Value;
        
        public static string? GetPrename(this ClaimsPrincipal user)
            => user.FindFirst(ClaimTypes.GivenName)?.Value;
        
        public static string? GetEmail(this ClaimsPrincipal user)
            => user.FindFirst(ClaimTypes.Email)?.Value;
    }
}