var express = require('express');
var cookieParser = require('cookie-parser');
var path = require('path');
var logger = require('morgan');
var compression = require('compression');
var methodOverride = require('method-override');
var session = require('express-session');
var flash = require('connect-flash');
var bodyParser = require('body-parser');
var expressValidator = require('express-validator');
var dotenv = require('dotenv');
var exphbs = require('express-handlebars');
var mongoose = require('mongoose');
var passport = require('passport');
var RedisStore = require('connect-redis')(session);
// Load environment variables from .env file


// Controllers
var HomeController = require('./controllers/home');
var userController = require('./controllers/user');
var contactController = require('./controllers/contact');

// Passport OAuth strategies
require('./config/passport');

var app = express();
dotenv.load();

mongoose.connect(process.env.MONGODB_URI || process.env.MONGODB);
mongoose.connection.on('error', function() {
  console.log('MongoDB Connection Error. Please make sure that MongoDB is running.');
  process.exit(1);
});

var hbs = exphbs.create({
  defaultLayout: 'main',
  helpers: {
    ifeq: function(a, b, options) {
      if (a === b) {
        return options.fn(this);
      }
      return options.inverse(this);
    },
    toJSON : function(object) {
      return JSON.stringify(object);
    }
  }
});

app.engine('handlebars', hbs.engine);
app.set('view engine', 'handlebars');
app.set('port', process.env.PORT || 3000);
app.use(compression());
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(expressValidator());
app.use(methodOverride('_method'));

app.use(flash());
app.use(express.static(path.join(__dirname, 'public')));
app.use(cookieParser()); // required before session.
if (process.env.REDISTOGO_URL) {
  var redisUrl = require('url').parse(process.env.REDISTOGO_URL),
  redisAuth = redisUrl.auth.split(':');
  app.set('redisHost', redisUrl.hostname);
  app.set('redisPort', redisUrl.port);
  app.set('redisDb', redisAuth[0]);
  app.set('redisPass', redisAuth[1]);
} else {
  var redis = require("redis").createClient();
}
if ('production' == app.get('env')) {
  app.use(session({
    secret: process.env.SESSION_SECRET,
    cookie : {secure : true},
    resave: true, saveUninitialized: true,
    store: new RedisStore({
      host: app.set('redisHost'),
      port: app.set('redisPort'),
      db: app.set('redisDb'),
      pass: app.set('redisPass')
    })
  }));
} else if ('development' == app.get('env')) {
  app.use(session({ secret: process.env.SESSION_SECRET, resave: true, saveUninitialized: true }));
};
app.use(passport.initialize());
app.use(passport.session());
app.use(function(req, res, next) {
  res.locals.user = req.user;
  next();
});


app.get('/', HomeController.index);
app.get('/dashboard', HomeController.dashboard);

app.get('/contact', contactController.contactGet);
app.post('/contact', contactController.contactPost);
app.get('/account', userController.ensureAuthenticated, userController.accountGet);
app.put('/account', userController.ensureAuthenticated, userController.accountPut);
app.delete('/account', userController.ensureAuthenticated, userController.accountDelete);
app.get('/signup', userController.signupGet);
app.post('/signup', userController.signupPost);
app.get('/login', userController.loginGet);
app.post('/login', userController.loginPost);
app.get('/forgot', userController.forgotGet);
app.post('/forgot', userController.forgotPost);
app.get('/reset/:token', userController.resetGet);
app.post('/reset/:token', userController.resetPost);
app.get('/logout', userController.logout);
app.get('/unlink/:provider', userController.ensureAuthenticated, userController.unlink);

// Production error handler
if (app.get('env') === 'production') {
  app.use(function(err, req, res, next) {
    console.error(err.stack);
    res.sendStatus(err.status || 500);
  });
}

app.listen(app.get('port'), function() {
  console.log('Express server listening on port ' + app.get('port'));
});

module.exports = app;