public async Task <bool> RegenerateCallNumbersAsync(int departmentId, CancellationToken cancellationToken = default(CancellationToken))
{
var calls = (await _callsRepository.GetAllByDepartmentIdAsync(departmentId)).OrderBy(x => x.LoggedOn);
int year = DateTime.UtcNow.Year;
int count = 1;
foreach (var call in calls)
{
call.Number = string.Format("{0}-{1}", year % 100, count);
await _callsRepository.SaveOrUpdateAsync(call, cancellationToken);
}
return(true);
}