var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var validator = require('./utils/Validator');
var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var typeRouter = require('./routes/type');
var carRouter = require('./routes/car');
var orderRouter = require('./routes/order');

var app = express();

app.all('*', function (req, res, next) {
  res.header('Access-Control-Allow-Origin', '*');
  //Access-Control-Allow-Headers ,可根据浏览器的F12查看,把对应的粘贴在这里就行
  res.header('Access-Control-Allow-Headers', 'Content-Type,token,data');
  res.header('Access-Control-Allow-Methods', '*');
  res.header('Content-Type', 'application/json;charset=utf-8');
  next();
});

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

// 导入全局拦截器
app.use(validator.Validator);

app.use('/home', indexRouter);
app.use('/user', usersRouter);
app.use('/type', typeRouter);
app.use('/car', carRouter);
app.use('/order', orderRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  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 : {};

  // render the error page
  res.status(err.status || 500);

});

module.exports = app;