//Ben Harris
//This program manages a library of books by title, stored in a linked list

#include<iostream>
#include<cctype>
#include "PG4.h"
#include "List.h"

using namespace std;

int main(int argc, char **argv) {
    string input = " ";
    List *list = new List();
    cout << "cLibrary Version 1.0 -- type help for a list of commands" << endl;
    while (converttolower(input).substr(0, 4) != "exit") {

        cout << "Enter command: ";
        getline(cin, input);
        string lower = converttolower(input);
        if (lower.substr(0, 3) == "add")
            list->add(input.substr(5, input.length() - 6), lower.substr(5, input.length() - 6));
        if (lower.substr(0, 6) == "remove") list->remove(lower.substr(8, input.length() - 9));
        if (lower == "print") list->print();
        if (list && lower == "clear") {
            delete list;
            List *list = new List();
        }
        if (lower.substr(0, 4) == "help" || lower.substr(0, 4) == "halp") {
            cout << endl << "These are the commands that this program accepts: " << endl << endl;
            cout << "add \"book title\" \t--adds a new entry with book title as the name" << endl;
            cout << "remove \"search term\" \t--deletes all books that contain search term" << endl;
            cout << "print \t\t\t--prints out the entire library in alphabetical order" << endl;
            cout << "clear \t\t\t--clears the entire library" << endl;
            cout << "exit \t\t\t--exits the program (also clears the library)" << endl << endl;
        }
    }
    delete list;
    return 0;
}

string converttolower(string s) {
    for (int i = 0; i < (int) s.length(); i++) s[i] = tolower(s[i]);
    return s;
}