import createError from 'http-errors'
import logger from 'morgan'
import express from 'express'
import cookieParser from 'cookie-parser'
import path from 'path'
import { fileURLToPath } from 'url'
import i18next from 'i18next'
import i18nextMiddleware from 'i18next-http-middleware'
import Backend from 'i18next-node-fs-backend'

const app = express()

export let url2call

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

import * as indexRouter from './routes/index.js'
import apiRouter from './routes/api.js'

i18next
    .use(Backend)
    .use(i18nextMiddleware.LanguageDetector)
    .init({
        backend: {
            loadPath: __dirname + '/locales/{{lng}}/{{ns}}.json'
        },
        fallbackLng: 'en',
        debug: true,
        preload: ['en', 'de']
    });

app.use(i18nextMiddleware.handle(i18next));

// 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(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/api', apiRouter)
app.use('/', indexRouter.router);

// 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);
  res.render('error');
});

export default app