Library.java

public class Library {
	private Items items;
	private Users users;
	private User currentUser;
	
	public Library() {
		items = Items.getInstance();
		users = Users.getInstance();
	}
	
	//creates a new user account
	public boolean createAccount(String userName, String firstName, String lastName, int age, String phoneNumber)
	{
		return users.addUser(userName,  firstName,  lastName,  age,  phoneNumber);
	}
	
	public boolean login(String userName) {
		if(!users.haveUser(userName))return false;
		
		currentUser = users.getUser(userName);
		return true;
	}
	
	public User getCurrentUser() {
		return currentUser;
	}
	
	//Returns true if item is found, and false otherwise
	public boolean findItem(String itemName) {
		return items.haveItem(itemName);
	}
	
	public boolean checkout(String itemName) {
		if(!findItem(itemName))return false;
		
		//checkout the item
		//need a user then have them checkout an item
		return true;
	}
	
	public boolean rateItem(String itemName, int rating) {
		if(!findItem(itemName))return false;
		
		if(rating < 0 || rating > 5) return false;
		
		return true;
	}
	
	public boolean payFine(int amount) {
		if(amount < 0) return false;
		
		return true; 	//successfully paid fine
	}
	
	public void logout() {
		users.saveUsers();
	}
}