public class PasswordKeeper{
private ArrayList<SuperUser> users;
private static Scanner keyboard = new Scanner(System.in);

public PasswordKeeper(){
    users = new ArrayList();
}

public void login(){
    try{
          //readObject
        get();
    }catch(EOFException a){
        System.out.println("You are the First User!");
    }catch(IOException b){
        System.out.println(b);
    }
    catch(ClassNotFoundException c){
        System.out.println(c);
    }
    boolean loopDisplay = true;
    while(loopDisplay){
        System.out.println("1. Loginn2. Create Accountn3. Exit");
        int answer = keyboard.nextInt();
        if(answer == 1){
            String existingUser = "";
            String existingPass = "";
            System.out.println("Enter a Username followed by password:");
            existingUser = keyboard.next();
            existingPass = keyboard.next();
            SuperUser temp = new SuperUser(existingUser,existingPass);
            System.out.println();
            if(users.contains(temp)){
                //viewing superUser method
                temp.display();
                try{
                    System.out.println("Saving.");
                    save(users);
                }catch(IOException e){
                    System.out.println(e);
                }
            }
        }
     public void save(ArrayList<SuperUser> obj)throws IOException{

        File file = new File("userInformation.dat");
        FileOutputStream fileOut = new FileOutputStream(file, false);
        BufferedOutputStream buffedOutput = new BufferedOutputStream(fileOut);
        ObjectOutputStream out = new ObjectOutputStream(buffedOutput);
        out.writeObject(obj);
        out.close();
        fileOut.close();
    }
    public ArrayList<SuperUser> get() throws IOException, ClassNotFoundException{
        FileInputStream fileIn = new FileInputStream("userInformation.dat");
        BufferedInputStream buffedInput = new BufferedInputStream(fileIn);
        ObjectInputStream in = new ObjectInputStream(buffedInput);
        users = (ArrayList<SuperUser>) in.readObject();
        in.close();
        fileIn.close();
        return users;
    }
public class SuperUser implements Serializable{
private String userName;
private String password;
private static  Scanner keyboard = new Scanner(System.in);
private ArrayList<LoginInfo> info = new ArrayList();


public SuperUser(String name, String pass){
    userName = name;
    password = pass;
}
public String getUser(){
    return userName;
}
public void display(){

    int count = 1;
    if(info.size() == 0){
        System.out.println("You don't have any accounts saved yet!" +
        "nGo and add some!");
    }else{
        for(LoginInfo i: info){
        System.out.println(count + " " + i.getSite());
        count ++;
        }
    }
    System.out.println();
    System.out.println("Add,Delete or Logout " + info.size());

    String next = keyboard.next();
    if(next.equalsIgnoreCase("add")){
        add();
    }else if(next.equalsIgnoreCase("delete")){
        delete();
    }else if(numberCheck(next)){
        int choice = (int) Integer.parseInt(next) - 1;
        edit(choice);
    }else if(next.equalsIgnoreCase("logout")){
        System.out.println(info.size());
    }

}
public boolean numberCheck(String in){
    try{
        Integer.parseInt(in);
    }catch(NumberFormatException e){
        return false;
    }
    return true;
}
public void add(){
    System.out.println("What is the website name?:");
    String trash = keyboard.nextLine();
    String webName = keyboard.nextLine();
    System.out.println("The Username?:");
    String webUsername = keyboard.nextLine();
    System.out.println("The Password?:");
    String webPass = keyboard.nextLine();
    info.add(new LoginInfo(webUsername, webPass, webName));
    System.out.println(info.size());
    System.out.println("Application added!");
    display();
}
public void delete(){
    System.out.println("Which account # would you like to delete?");
    int userDelete = keyboard.nextInt();
    info.remove(userDelete - 1);
    System.out.println("Account removed.");
    display();
}

public void edit(int index){
    System.out.println(info.get(index));
    System.out.println("Would you like to change the information? y/n");
    String trash = keyboard.nextLine();
    String yes = keyboard.nextLine();

    if(String.valueOf(yes.charAt(0)).equalsIgnoreCase("y")){
        System.out.println("Username?");
        String username = keyboard.nextLine();
        System.out.println("Password?");
        String password = keyboard.nextLine();
        info.set(index, new LoginInfo(username, password,info.get(index).getSite()));
        System.out.println("Information Updated!n");
        display();
    }else{
        display();
    }
}

@Override
public int hashCode(){
    return userName.hashCode();
}

@Override
public boolean equals(Object other){
    if(other instanceof SuperUser){
        SuperUser toCompare = (SuperUser) other;
        return this.userName.equals(toCompare.getUser());
    }
    return false;
}