var createError = require('http-errors');
var express = require('express');
var path = require('path');
var logger = require('morgan');

var MONGO_HOST = "mongo";
// var MONGO_HOST = "127.0.0.1";

// use lab6-db
var monk = require("monk");
var db = monk(`${MONGO_HOST}:27017/lab6-db`);

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');

var app = express();

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

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, 'public')));

// Make our db accessible to routers 
app.use(function(req,res,next){
    req.db = db; 
	next();
});

app.use('/', indexRouter);
app.use('/users', usersRouter);

// for requests not matching the above routes, create 404 error 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 environment
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};

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

module.exports = app;
