namespace Campaign_Tracker.Server.LegacyData;

/// <summary>
/// Base exception for errors originating in the legacy data access layer.
/// </summary>
public class LegacyDataAccessException : Exception
{
    public LegacyDataAccessException(string message) : base(message) { }
    public LegacyDataAccessException(string message, Exception innerException) : base(message, innerException) { }
}

/// <summary>
/// Thrown when the anti-corruption layer boundary detects an attempted write
/// operation on an immutable legacy table (AC #2).
/// </summary>
public sealed class LegacyWriteAttemptException : LegacyDataAccessException
{
    public LegacyWriteAttemptException(string message) : base(message) { }
}