/// <summary>
/// update the numabr of nanny's children
/// </summary>
/// <param name="nanny">the nanny that we whant to update her children number</param>
/// <param name="num">flag, if num = 1 add 1 else sub 1 </param>
/// <remarks>
/// accept nanny and a number
/// if number = 1, add 1 to nanny's children
/// else reduce nanny's children by 1
/// if didn't find the nanny throw exception
/// </remarks>
public void UpdateNannyChildren(Nanny nanny, int?num)
{
try
{
XElement nannyElment = FindNannyXml(nanny.ID);
if (nannyElment != null)
{
if (num == 1)
{
// add 1
nannyElment.Element("Children").SetValue(nanny.Children + 1);
}
else
{
//reduce by 1
nannyElment.Element("Children").SetValue(nanny.Children - 1);
}
nannyXml.saveFile();
}
else
{
throw new DALException(nanny.FullName() + " dosn't exsist", "AddNannyChildren");
}
}
catch (Exception)
{
throw new DALException("Failed in", "AddNannyChildren");
}
}
/// <summary>
/// update nanny
/// </summary>
/// <remarks></remarks>
/// <param name="nanny">the new Nanny that replace the old nanny</param>
/// <remarks>
/// accept nanny, delete the old nanny and replace it with the new nanny
/// if didn't find the nanny to delete, or can't add the new nanny throw exception
/// </remarks>
public void UpdateNanny(Nanny nanny)
{
if (FindNanny(nanny))
{
DeleteNanny(nanny);
try
{
AddNanny(nanny);
}
catch (DALException)
{
throw new DALException("can't update " + nanny.FullName() + "details", "update nanny");
}
}
else
{
throw new DALException(nanny.FullName() + " dosn't exsist", "update nanny");
}
}
/* Nanny functions */
/// <summary>
/// add nanny to nanny's DB
/// </summary>
/// <param name="nanny">the nanny to add to NannyList</param>
/// <remarks> if find the nanny on the list -
/// meeans this nanny already exsist throw exception </remarks>
public void AddNanny(Nanny nanny)
{
if (!FindNanny(nanny))
{
NannyList().Add(nanny.Clone());
}
else
{
throw new DALException(nanny.FullName() + " already exsist", "Add nanny");
}
}
/// <summary>
/// delete nanny from nanny's DB
/// </summary>
/// <param name="nanny">the nanny to delete from NannyList</param>
/// <remarks> accept nanny and send to DeleteNanny(int? id) function nanny's id </remarks>
public void DeleteNanny(Nanny nanny)
{
try
{
DeleteNanny(nanny.ID);
}
catch (DALException ex)
{
throw new DALException(nanny.FullName() + " dosn't exsist", ex.sender);
}
}
/// <summary>
/// add nanny to nanny's DB
/// </summary>
/// <param name="nanny">the nanny to add to NannyXml</param>
/// <remarks> if find the nanny on the list -
/// meeans this nanny already exsist throw exception </remarks>
public void AddNanny(Nanny nanny)
{
if (!FindNanny(nanny))
{
nannyXml.LoadData();
nannyXml.Root.Add(createNanny(nanny));
nannyXml.saveFile();
}
else
{
throw new DALException(nanny.FullName() + " already exsist", "Add nanny");
}
}
/// <summary>
/// add contract to contract's DB
/// </summary>
/// <param name="contract">the contract to add to ContractList</param>
/// <remarks>
/// accept contract, give the contract a number and add to contract list
/// check that - nanny, mother and child exsist
/// check also that there this contract dosn't already exsist
/// throw exceptions accordingly
/// </remarks>
public void AddContract(Contract contract)
{
contractXml.LoadData();
configXml.LoadData();
int ContractNumber = int.Parse(configXml.Root.Element("ContractNumber").Value);
Nanny nanny = FindNanny(contract.NannyID);
Mother mother = FindMother(contract.MotherID);
Child child = FindChild(contract.ChildID);
if (nanny != null)
{
if (mother != null)
{
if (child != null)
{
if (FindContract(contract.ContractNumber) == null)
{
// if the contract number equals 0, give a new contract number
// if contract number is not 0 - means this is an update contract,
// don't give a new contract number
if (contract.ContractNumber == null)
{
contract.ContractNumber = ContractNumber++;
configXml.Root.Element("ContractNumber").SetValue(ContractNumber);
configXml.saveFile();
}
contract.IsContractSigned = true;
contractXml.Root.Add(createContract(contract));
contractXml.saveFile();
}
else
{
throw new DALException(child.FirstName + " dosn't exsist", "Add contract");
}
}
else
{
throw new DALException("this contract number already exsist", "Add contract");
}
}
else
{
throw new DALException(mother.FullName() + " dosn't exsist", "Add contract");
}
}
else
{
throw new DALException(nanny.FullName() + " dosn't exsist", "Add contract");
}
}
/* contract functions */
/// <summary>
/// add contract to contract's DB
/// </summary>
/// <param name="contract">the contract to add to ContractList</param>
/// <remarks>
/// accept contract, give the contract a number and add to contract list
/// check that - nanny, mother and child exsist
/// check also that there this contract dosn't already exsist
/// throw exceptions accordingly
/// </remarks>
public void AddContract(Contract contract)
{
Nanny nanny = FindNanny(contract.NannyID);
Mother mother = FindMother(contract.MotherID);
Child child = FindChild(contract.ChildID);
if (nanny != null)
{
if (mother != null)
{
if (child != null)
{
if (FindContract(contract.ContractNumber) == null)
{
// if the contract number equals 0, give a new contract number
// if contract number is not 0 - means this is an update contract,
// don't give a new contract number
if (contract.ContractNumber == null)
{
contract.ContractNumber = ContractNumber++;
}
contract.IsContractSigned = true;
ContractList().Add(contract.Clone());
}
else
{
throw new DALException(child.FirstName + " dosn't exsist", "Add contract");
}
}
else
{
throw new DALException("this contract number already exsist", "Add contract");
}
}
else
{
throw new DALException(mother.FullName() + " dosn't exsist", "Add contract");
}
}
else
{
throw new DALException(nanny.FullName() + " dosn't exsist", "Add contract");
}
}
/// <summary>
/// update the numabr of nanny's children
/// </summary>
/// <param name="nanny">the nanny that we whnt to update her children number</param>
/// <param name="num">flag, if num = 1 add 1 else sub 1 </param>
/// <remarks>
/// accept nanny and a number
/// if number = 1, add 1 to nanny's children
/// else reduce nanny's children by 1
/// if didn't find the nanny throw exception
/// </remarks>
public void UpdateNannyChildren(Nanny nanny, int?num)
{
if (FindNanny(nanny))
{
if (num == 1)
{
// add 1
NannyList().Find(nan => nan.Equals(nanny)).Children++;
}
else
{
//reduce by 1
NannyList().Find(nan => nan.Equals(nanny)).Children--;
}
}
else
{
throw new DALException(nanny.FullName() + " dosn't exsist", "AddNannyChildren");
}
}
/* Nanny functions */
/// <summary>
/// add Nanny to nanny's DB
/// </summary>
/// <param name="nanny">the nanny to add to NannyList</param>
/// <remarks>
/// if nany age is under 18 throw exception
/// cal dal.addNanny
/// </remarks>
public void AddNanny(Nanny nanny)
{
if (nanny.NannyAge < 18 || nanny.NannyAge == null)
{
throw new BLException(nanny.FullName() + " age is under 18", "add nanny");
}
try
{
Valid(nanny);
}
catch (BLException)
{
throw;
}
try
{
dal.AddNanny(nanny.Clone());
}
catch (DALException ex)
{
throw new BLException(ex.Message, ex.sender);
}
}
/* contract functions */
/// <summary>
/// add contract to contract's DB
/// </summary>
/// <param name="contract">the contract to add to ContractList</param>
/// <remarks>
/// accept contract, update number of nanny's children, that the child has nanny,
/// the final payment and cal dal.AddContract to add the contract
/// check that - nanny, mother and child exsist
/// check also that there this contract dosn't already exsist
/// throw exceptions accordingly
/// </remarks>
public void AddContract(Contract contract)
{
Mother mother = FindMother(contract.MotherID);
Nanny nanny = FindNanny(contract.NannyID);
Child child = FindChild(contract.ChildID);
if (mother == null)
{
throw new BLException("mother with ID: " + contract.MotherID + " dosn't exsist", "add contract");
}
if (nanny == null)
{
throw new BLException("nanny with ID: " + contract.NannyID + " dosn't exsist", "add contract");
}
if (child == null)
{
throw new BLException("child with ID: " + contract.ChildID + " dosn't exsist", "add contract");
}
// if child age is under 3 month throw exception
if (child.AgeInMonth < 3)
{
throw new BLException(child.FirstName + " is under 3 month", "add contrsct");
}
if (IsChildInNannyAge(nanny, child.ID) == false)
{
throw new BLException(child.FirstName + " is not on nanny's age range", "add contrsct");
}
if (child.HaveNanny == true)
{
throw new BLException(child.FirstName + " already has a nanny ", "add contrsct");
}
// if nanny has more then his max childre throw exception
if (nanny.Children >= nanny.MaxChildren)
{
throw new BLException(nanny.FullName() + " already has " + nanny.MaxChildren + " children", "Add contract");
}
try
{
// calculate the final payment
CalculatePayment(contract);
// update number of nanny's children and that the child has nanny
UpdateNannyChildren(nanny, 1);
UpdateHaveNanny(child, true);
dal.AddContract(contract.Clone());
}
catch (BLException ex)
{
// if fail at UpdateHaveNanny need to reduce back nanny children
if (ex.sender == "Update Have Nanny")
{
UpdateNannyChildren(nanny, -1);
}
throw;
}
catch (DALException ex)
{
// if fail at UpdateHaveNanny need to reduce back nanny children,
// and if fail at AddContract need to reduce back nanny children
// and change back the have nanny feild of child.
if (ex.sender == "Update Have Nanny")
{
UpdateNannyChildren(nanny, -1);
}
if (ex.sender == "Add contract")
{
UpdateNannyChildren(nanny, -1);
}
UpdateHaveNanny(child, false);
throw new BLException(ex.Message, ex.sender);
}
}