const express = require('express');
const staticFile = require('connect-static-file');
const compression = require('compression');
const helmet = require('helmet');
const path = require('path');
const winston = require('winston');
const expressWinston = require('express-winston');

const IN_TEST = process.env.NODE_ENV === 'true';
const PORT = process.env.PORT || 5000;
const SERVE_DIR = path.join(__dirname, '/site');
const PAGE_404 = path.join(SERVE_DIR, '.404.html');
const EXPRESS_CONFIG = {
  dotfiles: 'ignore',
  index: false,
  redirect: true
};
const LOGGER_MESSAGE = '{{ req.url }}'
  .concat('status:{{ res.statusCode }} ')
  .concat('useragent:{{ req.headers["user-agent"] }} ')
  .concat('time:{{ res.responseTime }}ms');

const app = express();

app.use(compression({ level: 9 }));
app.use(helmet());
if (IN_TEST) {
  console.log('Enabling Logging...');
  app.use(expressWinston.logger({
    transports: [
      new winston.transports.Console({
        colorize: true
      })
    ],
    meta: false,
    msg: LOGGER_MESSAGE,
    colorize: true,
    statusLevels: true
  }));
}

app.use(function (request, response, next) {
  if (request.url.endsWith('/')) {
    request.url = path.join(request.url, 'index.html');
  }
  next();
});

app.use(express.static(SERVE_DIR, EXPRESS_CONFIG));

app.use(function (request, response, next) {
  response.statusCode = 404;
  staticFile(PAGE_404)(request, response, next);
});


const server = app.listen(PORT, function () {
  if (IN_TEST) {
    console.log('Server started on port ' + server.address().port);
  }
});

module.exports = server;