// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using System;

namespace Mono.Linker
{
    /// <summary>
    /// Represents a known error that occurred during link time which is not solvable by the user.
    /// This is used when we want to present the non-recoverable error with a specific error code.
    /// </summary>
    public class LinkerFatalErrorException : Exception
    {
        public MessageContainer MessageContainer { get; }

        /// <param name="message">Error message with a description of what went wrong</param>
        public LinkerFatalErrorException(MessageContainer message)
            : base(message.ToString())
        {
            if (message.Category != MessageCategory.Error)
                throw new ArgumentException($"'{nameof(LinkerFatalErrorException)}' ought to be used for errors only");

            if (message.Code == null || message.Code.Value == 0)
                throw new ArgumentException($"'{nameof(LinkerFatalErrorException)}' must have a code that indicates a failure");

            MessageContainer = message;
        }

        /// <param name="message">Error message with a description of what went wrong</param>
        /// <param name="innerException"></param>
        public LinkerFatalErrorException(MessageContainer message, Exception innerException)
            : base(message.ToString(), innerException)
        {
            if (message.Category != MessageCategory.Error)
                throw new ArgumentException($"'{nameof(LinkerFatalErrorException)}' ought to be used for errors only");

            if (message.Code == null || message.Code.Value == 0)
                throw new ArgumentException($"'{nameof(LinkerFatalErrorException)}' must have a code that indicates failure");

            MessageContainer = message;
        }
    }
}