mxaccessgw/src/MxGateway.Worker/MxAccess/MxAccessCreationException.cs

using System;
using System.Runtime.InteropServices;

namespace MxGateway.Worker.MxAccess;

public sealed class MxAccessCreationException : Exception
{
    public MxAccessCreationException(Exception innerException)
        : base(
            $"Failed to create MXAccess COM object {MxAccessInteropInfo.ComClassName} ({MxAccessInteropInfo.ProgId}).",
            innerException)
    {
        AttemptedProgId = MxAccessInteropInfo.ProgId;
        AttemptedClsid = MxAccessInteropInfo.Clsid;
        AttemptedComClassName = MxAccessInteropInfo.ComClassName;
        HResult = innerException.HResult;
    }

    public string AttemptedProgId { get; }

    public string AttemptedClsid { get; }

    public string AttemptedComClassName { get; }

    public int? CapturedHResult => HResult == 0 ? null : HResult;

    public static MxAccessCreationException From(Exception exception)
    {
        return exception is MxAccessCreationException creationException
            ? creationException
            : new MxAccessCreationException(exception);
    }

    public static int? ExtractHResult(Exception exception)
    {
        if (exception is MxAccessCreationException creationException)
        {
            return creationException.CapturedHResult;
        }

        if (exception is COMException comException)
        {
            return comException.HResult;
        }

        return exception.HResult == 0 ? null : exception.HResult;
    }
}