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

var routes = require('./routes/index');
var register = require('./routes/register');
var success = require('./routes/success');

var app = express();

// 模板引擎设置
app.set('views', path.join(__dirname, 'views'));
// 使用handlebars模板引擎
app.engine('html', exphbs({
    layoutsDir: 'views',
    defaultLayout: 'layout',
    extname: '.html'
}));
app.set('view engine', 'html');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// 路由设置
app.use('/', routes);
app.use('/register.html', register);
app.use('/success.html', success);

// 处理 404
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;