/// <summary>
/// add Contract to the Data Source
/// </summary>
/// <param name="myContract"></param>
public void AddContract(Contract myContract)
{
if (FindContract(myContract.TransactionNumber) != null)
{
throw new Exception("Contract already exist");
}
Nanny nan = FindNanny(myContract.NannyId);
if (nan == null) // nanny not found
{
throw new Exception("nanny of this contract not exist");
}
Child chi = FindChild(myContract.ChildId);
Mother mom = FindMother(chi.MotherId);
if (mom == null) // mother not found
{
throw new Exception("mother of this contract not exist");
}
if ((DateTime.Now.Year - chi.DateOfBirth.Year) > nan.MaxChildAge)
{
throw new Exception("child age exceeded from the max age!");
}
if ((DateTime.Now.Year - chi.DateOfBirth.Year) < nan.MinChildAge)
{
throw new Exception("child age exceeded from the min age!");
}
myContract.ContractSigned = true;
nan.NumOfContract += 1;
myXML.UpdateNanny(nan);
myContract.TransactionNumber = NextTransactionNumber++;
myXML.UpdateTransactionNumber(NextTransactionNumber);
myXML.AddContract(myContract);
}
