using System;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Net;
using System.Runtime.Serialization;

namespace Octokit
{
    /// <summary>
    /// 
    /// </summary>
#if !NETFX_CORE
    [Serializable]
#endif
    [SuppressMessage("Microsoft.Design", "CA1032:ImplementStandardExceptionConstructors",
        Justification = "These exceptions are specific to the GitHub API and not general purpose exceptions")]
    public class TwoFactorRequiredException : TwoFactorAuthorizationException
    {
        /// <summary>
        /// Constructs an instance of TwoFactorRequiredException.
        /// </summary>
        public TwoFactorRequiredException() : this(TwoFactorType.None)
        {
        }

        /// <summary>
        /// Constructs an instance of TwoFactorRequiredException.
        /// </summary>
        /// <param name="twoFactorType">Expected 2FA response type</param>
        public TwoFactorRequiredException(TwoFactorType twoFactorType) : base(twoFactorType, null)
        {
        }

        /// <summary>
        /// Constructs an instance of TwoFactorRequiredException.
        /// </summary>
        /// <param name="response">The HTTP payload from the server</param>
        /// <param name="twoFactorType">Expected 2FA response type</param>
        public TwoFactorRequiredException(IResponse response, TwoFactorType twoFactorType)
            : base(response, twoFactorType)
        {
            Debug.Assert(response != null && response.StatusCode == HttpStatusCode.Unauthorized,
                "TwoFactorRequiredException status code should be 401");
        }

        public override string Message
        {
            get { return ApiErrorMessageSafe ?? "Two-factor authentication code is required"; }
        }

#if !NETFX_CORE
        /// <summary>
        /// Constructs an instance of TwoFactorRequiredException.
        /// </summary>
        /// <param name="info">
        /// The <see cref="SerializationInfo"/> that holds the
        /// serialized object data about the exception being thrown.
        /// </param>
        /// <param name="context">
        /// The <see cref="StreamingContext"/> that contains
        /// contextual information about the source or destination.
        /// </param>
        protected TwoFactorRequiredException(SerializationInfo info, StreamingContext context)
            : base(info, context)
        {
        }
#endif
    }
}