/* Name: song.cpp   
 * Purpose: Implementation file for Song Class            
 * Author: Dr. Michael A. Redmond
 * Date Written: 03/06/2k
 * Date Revised: 03/27/2k - improved << and added == to allow use of list remove function
 * NOTES: 
*/

// in song.cpp

#include<string>   // allows string handling
#include<iostream>
#include "song.h"
using namespace std;


Song::Song() {
	title = "unknown";
	artist = "unknown";
	lenMins = -1;
	lenSecs = -1;
}

// default length is 3:00
Song::Song(const string& titl, const string &art, int min, int sec) {
	title = titl;
	artist = art;
	if (min < 0) {
		lenMins = -1;
	}
	else {
		lenMins = min;
	}
	if ((sec < 0) || (sec > 59)) {
		lenSecs = -1;
	}
	else {
		lenSecs = sec;
	}
}


// following were in-lined

	
// inspectors
// string GetTitle() const; 
// string GetArtist() const;
// int GetMins() const;
// int GetSecs() const;
// int GetLength() const;
	  
// mutators
// void SetTitle(const string & titl); 
// void SetArtist(const string & art);


	  
// set minutes and seconds 
// if either bad, dont set either one and return false
// if both ok, set and return true
//     default secs is 0
bool Song::SetLen(const int min, const int sec) {
	bool ok = true;
	if (min < 0) {
		ok = false;
	}
	if ((sec < 0) || (sec > 59)) {
		ok = false;
	}
	if (ok) {
		lenMins = min;
		lenSecs = sec;
	}
	return ok;
}

   

// allows outputting all info about song
ostream& operator << (ostream & strOut, const Song & mySong) {
	strOut << mySong.GetTitle() << " by " << mySong.GetArtist() << " lasts "
		<< mySong.GetMins() << ":";
	int secs = mySong.GetSecs();
	// force seconds to look right if in single digits
	if (secs < 10) {
		strOut << "0";
	}
	strOut << secs;
	return strOut;
}

// allows checking equality between  songs
bool operator == (const Song & lhs, const Song & rhs) {
	if ( (lhs.GetTitle() == rhs.GetTitle() )
		 && (lhs.GetArtist() == rhs.GetArtist() )
		 && (lhs.GetMins() == rhs.GetMins() )
		 && (lhs.GetSecs() == rhs.GetSecs() ) ) {
		// all the same then the song is the same
		return true;
	}
	else
		return false;
}