public SupplierRateDTO AddSupplierRate(int supplierId, decimal rate, DateTime startDate, DateTime?endDate)
{
if (endDate.HasValue && startDate >= endDate.Value)
{
throw new ValidationException("The end date must be greater than start date");
}
SupplierDTO supplier = Get(supplierId);
if (supplier == null)
{
throw new NotFoundException($"The supplier of id {supplierId} does not exists");
}
ValidateOverLapping(startDate, endDate, supplier.SupplierRates);
var supplierRate = new SupplierRateDTO
{
Rate = rate,
StartDate = startDate,
EndDate = endDate
};
return(_supplierDao.SaveSupplierRate(supplier.SupplierId, supplierRate));
}
