using Microsoft.AspNetCore.Http;

namespace Distribution.Infra.Authorization;

public class CurrentUserService : ICurrentUserService
{
    private readonly IHttpContextAccessor _httpContextAccessor;

    public CurrentUserService(IHttpContextAccessor httpContextAccessor)
    {
        _httpContextAccessor = httpContextAccessor;
    }

    private System.Security.Claims.ClaimsPrincipal? User => _httpContextAccessor.HttpContext?.User;

    public bool IsAuthenticated => User?.Identity?.IsAuthenticated ?? false;

    public Guid? UserId
    {
        get
        {
            var value = User?.FindFirst("sub")?.Value ?? User?.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier)?.Value;
            return Guid.TryParse(value, out var id) ? id : null;
        }
    }

    public Guid? RoleId
    {
        get
        {
            var value = User?.FindFirst("role_id")?.Value;
            return Guid.TryParse(value, out var id) ? id : null;
        }
    }

    public string? Username => User?.FindFirst("username")?.Value;

    public int RoleLevel
    {
        get
        {
            var value = User?.FindFirst("role_level")?.Value;
            return int.TryParse(value, out var level) ? level : 0;
        }
    }
}