shutterstock/juxtaposer

var express = require('express');
var path = require('path');
var favicon = require('static-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(favicon());
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));


app.get("/", function (req, res) { 
  res.render("index", { environment: 'prod'})
})

var environments = ["prod", "dev"]
app.get('/:environment/:view', function (req, res) {
  var isEnvValid = environments.some(function (envName) { return envName === req.param("environment") })
  if (!isEnvValid) { return res.send(404, "Couldn't find the env:" + req.param("environment"))}
  res.render(req.param("view"), {
    environment: req.param("environment")
  }, function (err, html) { 
    if (err) { res.send(404, "Couldn't find the view:" + req.param("view"))}
    else { res.send(html) }
  })
})


/// catch 404 and forward to error handler
app.use(function(req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
});

/// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    app.use(function(err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: err
        });
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
        message: err.message,
        error: {}
    });
});


module.exports = app;