passportAuth.js

var LocalStrategy = require('passport-local').Strategy;
var GoogleStrategy = require('passport-google-oauth').OAuth2Strategy;

var User            = require('./models/user');
var configAuth = require('./auth');

module.exports = function(passport) {


	passport.serializeUser(function(user, done){
		done(null, user.id);
	});

	passport.deserializeUser(function(id, done){
		User.findById(id, function(err, user){
			done(err, user);
		});
	});


	passport.use('local-signup', new LocalStrategy({
		usernameField: 'email',
		passwordField: 'password',
		passReqToCallback: true
	},
	function(req, email, password, done){
		process.nextTick(function(){
			User.findOne({'local.username': email}, function(err, user){
				if(err)
					return done(err);
				if(user){
					return done(null, false, req.flash('signupMessage', 'That email already taken'));
				} else {
					var newUser = new User({
				        firstName: req.body.firstName, 
				        lastName: req.body.lastName, 
				        username: req.body.email
				    });
     				User.register(newUser, req.body.password, function(err, user){
			        	if(err){
			            console.log(err);
	             		return res.render("login");
	         			}
					});
				}
			});

		});
	}));

	passport.use('local-login', new LocalStrategy({
			usernameField: 'email',
			passwordField: 'password',
			passReqToCallback: true
		},
		function(req, email, password, done){
			process.nextTick(function(){
				User.findOne({ 'local.username': email}, function(err, user){
					if(err)
						return done(err);
					if(!user)
						return done(null, false, req.flash('loginMessage', 'No User found'));
					if(!user.validPassword(password)){
						return done(null, false, req.flash('loginMessage', 'invalid password'));
					}
					return done(null, user);

				});
			});
		}
	));


	passport.use(new GoogleStrategy({
	    clientID: configAuth.googleAuth.clientID,
	    clientSecret: configAuth.googleAuth.clientSecret,
	    callbackURL: configAuth.googleAuth.callbackURL
	  },
	  function(accessToken, refreshToken, profile, done) {
	    	process.nextTick(function(){
	    		User.findOne({'google.id': profile.id}, function(err, user){
	    			if(err)
	    				return done(err);
	    			if(user)
	    				return done(null, user);
	    			else {
	    				var newUser = new User();
	    				newUser.google.id = profile.id;
	    				newUser.google.token = accessToken;
	    				newUser.google.name = profile.displayName;
	    				newUser.google.email = profile.emails[0].value;

	    				newUser.save(function(err){
	    					if(err)
	    						throw err;
	    					return done(null, newUser);
	    				})
	    				console.log(profile);
	    			}
	    		});
	    	});
	    }

	));


	


};