/*

This program or library is part of amv::software.

Copyright (C) 1995-2007  Ariel Alonzo Medina Vázquez

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this program; if not, visit
http://www.gnu.org/licenses/lgpl.html
or write to the Free Software Foundation, Inc., 51 Franklin Street,
Fifth Floor, Boston, MA  02110-1301, USA.


Ariel Alonzo Medina Vázquez

ariel_medina21@hotmail.com
http://www.paginasprodigy.com/campechedigital/arielmedina1978
Campeche, Campeche, México

*/

#include <iostream>
#include <string>
#include <fstream>

using namespace std;

class book	{
	string name, author, isbn;

public:

	friend istream &operator>>(istream &is, book &b)
		{
		char s[1024];

		if(&is==&cin) std::cerr<<"Nombre del libro: ";
		if(is.getline(s,1024))
			b.name=s;
		if(&is==&cin) std::cerr<<"Autor: ";
		if(is.getline(s,1024))
			b.author=s;
		if(&is==&cin) std::cerr<<"ISBN: ";
		if(is.getline(s,1024))
			b.isbn=s;

		return is;
		}

	friend ostream &operator<<(ostream &os, const book &b)
		{

		if(&os==&cout) std::cerr<<"Nombre del libro: ";
		os<<b.name<<endl;
		if(&os==&cout) std::cerr<<"Autor: ";
		os<<b.author<<endl;
		if(&os==&cout) std::cerr<<"ISBN: ";
		os<<b.isbn<<endl;

		return os;
		}

};

void menu()
{
char s[32]="";
char &c=s[0];

while(c!='3')
	{
	cerr<<"\n\nLibrería\n\n";
	cerr<<"1: Alta del libro"<<endl;
	cerr<<"2: Consulta"<<endl;
	cerr<<"3: Salir"<<endl;
	cerr<<endl<<endl;
	cerr<<"Teclee el número de la opción: ";
	cin.getline(s,32);
	if(c=='1')
		{
		book b;
		cin>>b;
		
		ofstream os("libros.txt",ios::out|ios::app);
		os<<b;
		}
	else if(c=='2')
		{
		book b;
		ifstream is("libros.txt");

		while(is>>b)
			cout<<b<<endl;
		}
	else if(c!='3')
		{
		cerr<<"Opción inválida"<<endl<<endl<<endl;
		}
	}
}

int main()
{
menu();

return 0;
}