private string CalculateFileName(string baseFileName, string contentType, int count)
{
var fileName = !string.IsNullOrWhiteSpace(baseFileName) ? baseFileName : "picture";
if (count > 0)
{
fileName = $"{Path.GetFileNameWithoutExtension(fileName)}_{count}{Path.GetExtension(fileName)}";
}
if (string.IsNullOrWhiteSpace(Path.GetExtension(fileName)) &&
!string.IsNullOrWhiteSpace(contentType))
{
var mimeFileExt = mimeMapping.GetFileExtensionMapping(contentType);
fileName = Path.ChangeExtension(fileName, mimeFileExt);
}
return(fileName);
}
private string GetAvatarFileExt(EditAvatar request) => mimeMapping.GetFileExtensionMapping(request.Avatar.ContentType) ?? Path.GetExtension(request.Avatar.Filename);