#include <list>
#include <iostream>
#include "song.h"
using namespace std;


class Cd {
public:
	Cd ();  // default constructor - empty CD
	Cd (bool fromUser, istream & strIn = cin); // get contents of CD from user or file
	Cd (const Cd & toCopy); // copy constructor
	Song ReturnNthSong(int n); 
	Song ReturnRandomSong();
	void PlayInOrder();
	void PlayRandomOrder();
	void PlayUserOrder();
	int GetTotalTime();  // total time for all songs on the CD in seconds
	string GetTitle() const {
		return title;
	}
	string GetArtist() const {
		return artist;
	}
	int GetNumSongs() const {
		return allSongs.size();
	}
	void SetTitle(const string & titl) {
		title = titl;
		return;
	}
	void SetArtist(const string & art) {
		artist = art;
		return;
	}

	

private:
	void AddSong(const Song & newOne); // used by constructor
	list<Song> allSongs;
	string title;
	string artist;
};

ostream & operator << (ostream & strOut, Cd & current);

istream& mygetline(istream &strIn, string &newVal, char toStop = '\n');

// ask yes no question - not allowing to continue until y/Y/n/N entered
// returns a lower case y or n (always! nothing else)
char askYN (const string & prompt);


// ask for a number within a range
// not allowing an exit until a valid number is entered
// Given:
//    the lowest valid value
//    the highest valid value
//    the prompt to ask the user (a string)
double GetValid(double low, double high, string prompt);
int GetValid(int low, int high, string prompt);