private static void FormatMimeEntity(StringBuilder stringBuilder, MimeEntity entity, string indent)
{
stringBuilder.AppendLine($"{indent}Mime Type: {entity.ContentType.MimeType}");
indent += Indent;
if (entity is Multipart multipart)
{
foreach (var subentity in multipart)
{
FormatMimeEntity(stringBuilder, subentity, indent);
}
}
else if (entity is TextPart textPart)
{
var text = string.Join('\n', textPart.Text.Split("\n").Select(line => $"{indent}{line}"));
stringBuilder.AppendLine(text);
}
else if (entity is MimePart mimePart)
{
stringBuilder.AppendLine($"{indent}Attachment: {mimePart.FileName}");
}
else
{
stringBuilder.AppendLine($"{indent}Unhandled type {entity.GetType()}");
}
}
