import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;

public class Bank
{
    List advisorList = new ArrayList();
    List bankAccountList = new ArrayList();

    private Bank()
    {
    }
    
    public static synchronized Bank getInstance()
    {
    	if (ref == null)
        ref = new Bank();
        return ref;
    }

    public Object clone() throws CloneNotSupportedException
    {
        throw new CloneNotSupportedException();
    }
    private static Bank ref;
    
    //* return an account by it's account number
    public BankAccount getAccountByNumber(int accountNum)
    {
        Iterator itAccountByNumber = bankAccountList.iterator();
        while(itAccountByNumber.hasNext())
        {
            BankAccount check = (BankAccount)itAccountByNumber.next();
            if(check.getAccountNumber() == accountNum)
            {
                return check;
            }
        }
        return null;
    }

    
    //* Given a customers last name return the account number
    public BankAccount getAccountByName(String lastName)
    {
        Iterator itAccountByName = bankAccountList.iterator();
        while(itAccountByName.hasNext())
        {
            BankAccount check = (BankAccount)itAccountByName.next();
            List clients = check.getCustomerList();
            for(Object o : clients)
            {
                Customer c = (Customer) o;

                if(c.getLastName().equals(lastName))
                {
                     return check;
                }
            }

        }
        return null;
     }
    
    //* deposit money into a BankAccount
    public void deposit(BankAccount b, double amt)
    {
    	b.deposit(amt);
    }
    
    public void withdraw(BankAccount b, double amt)
    {
    	b.withdraw(amt);
    }
    
    //Print all advisors in the advisorList
    public List showAdvisor()
    {
    	Iterator itAdvisor = advisorList.iterator();
        while (itAdvisor.hasNext())
        {
            Advisor a = (Advisor)itAdvisor.next();
            System.out.println("======================");
            System.out.println(a);
            System.out.println("======================");
        }
        
      return null;
    }
    
    public void addAdvisor(Advisor advisor)
    {
    	advisorList.add(advisor);

    }
    
    public void addBankAccount(BankAccount b)
    {
    	bankAccountList.add(b);    	
    }
   
}