//Ben Harris
//List.cpp defines the methods for a List

#include <iostream>
#include <cstdlib>
#include "List.h"
#include "Node.h"
#include "PG4.h"

using namespace std;

List::List() {
    head = NULL;
}

List::~List() {
    delete head;
}

void List::add(string s, string l) {
    if (head && head->getvalue() == l) {
        cout << "already in library. aborted." << endl;
        return;
    }
    if (!head || converttolower(head->getvalue()) > l) head = new Node(s, head);
    else head = head->add(s, l);
}

void List::print() {

    cout << endl << "Library List" << endl << endl;
    if (head) head->print();
    cout << endl;
}

void List::remove(string s) {
    if (head) head = head->remove(s, NULL, this);
}

void List::sethead(Node *n) { head = n; }