var createError = require('http-errors');
var express = require('express');
var path = require('path');
var logger = require('morgan');
var serveStatic = require('serve-static')
var favicon = require('serve-favicon')



var app = express();

// view engine setup
//app.engine('html', require('express-art-template'));

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

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));

// app.use('/static', express.static(path.join(__dirname, 'public')),{
//   etag: false
// })
app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')))
app.use('/static', serveStatic(path.join(__dirname, 'public'),{
  etag: false
}))
app.use(function(req, res, next) {
  req.headers['if-none-match'] = 'no-match-for-this';
  next();    
});

//路由，前台
let indexRouter = require('./routes/index');

app.use('/', indexRouter);

//路由，后台
let muNodesRouter=require('./routes/mu/nodes.js');
app.use('/mod_mu/nodes', muNodesRouter);

let muUsersRouter=require('./routes/mu/users.js');
app.use('/mod_mu/users', muUsersRouter);


let muFuncRouter=require('./routes/mu/func.js');
app.use('/mod_mu/func', muFuncRouter);


// catch 404 and forward to error handler
app.use(function(req, res, next) {
  if (req.path && !req.path.endsWith('.map')){
    next(createError(404));
  }
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};
  console.error(err.stack);
  // render the error page
  res.status(err.status || 500);
  res.render('error');
});


module.exports = app;