private int GetEquipmentFreeId()
{
var addIds = equipmentRepository.GetAllIds();
if (addIds.Count == 0)
{
return(0);
}
addIds.Sort();
var lastId = addIds.Last();
if (addIds.Count != lastId)
{
for (var i = 0; i < lastId; i++)
{
if (addIds.Contains(i))
{
continue;
}
return(i);
}
}
return(lastId + 1);
}