package Root;

import java.security.MessageDigest;

import java.security.NoSuchAlgorithmException;

import java.util.ArrayList;

/**

* @author syombua

*

*/

public class User {

private String firstName;

private String lastName;

private String uuid;

private byte pinHash[];

private ArrayList<Account> accounts;

public User(String firstName, String lastName, String pin, Bank theBank){

//set users name

this.firstName = firstName;

this.lastName = lastName;

//store the pins MD5 hash, rather than the original value for security reasons;

try{

MessageDigest md = MessageDigest.getInstance("MD5");

this.pinHash = md.digest(pin.getBytes());

}catch(NoSuchAlgorithmException e){

System.err.println("Error, Caught NoSuchAlgorithmException");

e.printStackTrace();

System.exit(1);

}

//get a new unique universal IF for the user

this.uuid = theBank.getNewUserUUID();

//create empty list of accounts

this.accounts = new ArrayList<Account>();

//print log message

System.out.printf("New user %s, %s with ID %s created.\n", lastName, firstName, this.uuid);

}

//add account for users should be public

public void addAccount(Account onAcct){

this.accounts.add(onAcct);

}

//return user UUId

public String getUUID(){

return this.uuid;

}

//Check if a given pin matches the true user pin

//return whether the pin is valid or not

public boolean validatePin(String aPin){

try {

MessageDigest md = MessageDigest.getInstance("MD5");

return MessageDigest.isEqual(md.digest(aPin.getBytes()), this.pinHash);

} catch (NoSuchAlgorithmException e) {

System.err.println("Error, Caught NosuchAlgorithmException");

// TODO Auto-generated catch block

e.printStackTrace();

System.exit(1);

}

return false;

}

public String getFirstName() {

// TODO Auto-generated method stub

return this.firstName;

}

public void printAccountsSummary() {

System.out.printf("\n\n%s Accounts summary\n", this.firstName);

for(int a = 0; a< this.accounts.size(); a++){

System.out.printf("%d. %s\n Accounts summary\n",a+1, this.accounts.get(a).getSummaryLine());

}

// TODO Auto-generated method stub

System.out.println();

}

public int numAccounts() {

// TODO Auto-generated method stub

return this.accounts.size();

}

/**

*

* @param acctIdx

*/

public void printAcctTransHistory(int acctIdx){

this.accounts.get(acctIdx).printTransHistory();

}

public double getAcctBalance(int acctIdx) {

// TODO Auto-generated method stub

return this.accounts.get(acctIdx).getBalance();

}

public String getAcctUUID(int acctIdx) {

// TODO Auto-generated method stub

return this.accounts.get(acctIdx).getUUID();

}

public void addAcctTransaction(int acctIdx, double amount, String memo) {

// TODO Auto-generated method stub

this.accounts.get(acctIdx).addTransaction(amount,memo);

}

}