using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL.Entities;
using Tango.BL.Enumerations;
using Tango.MachineService.Gateway;

namespace Tango.FSE.BL
{
    /// <summary>
    /// Represents an simple authentication service that reports a global "CurrentUser".
    /// </summary>
    public interface IAuthenticationService
    {
        /// <summary>
        /// Gets the current environment configuration.
        /// </summary>
        EnvironmentConfiguration CurrentEnvironment { get; }

        /// <summary>
        /// Gets the global current user.
        /// </summary>
        User CurrentUser { get; }

        /// <summary>
        /// Throws an exception if the current user does not have the specified permission.
        /// </summary>
        /// <param name="permission">The permission.</param>
        /// <param name="message">Optional message.</param>
        void ThrowIfNoPermission(Permissions permission, String message = null);
    }
}