public async Task <string> GetCurrentCallNumberAsync(int departmentId)
{
int year = DateTime.UtcNow.Year;
var count = (await _callsRepository.GetAllCallsByDepartmentDateRangeAsync(departmentId, new DateTime(year - 1, 12, 30), new DateTime(year, 12, 31))).Count(x => x.LoggedOn.Year == year) + 1;
return(string.Format("{0}-{1}", year % 100, count));
}