const express = require('express');
const session = require('express-session');
const RedisStore = require('connect-redis')(session);
// const flash = require('express-flasher');

// instantiate new express.js app
const app = express();
const config = require('config');

// initialize database connection
(async () => {
  const db = require('./src/models');
  await db.sequelize.sync({
    alter: true,
  });
})();

// initialize Redis store for session data
const redisClient = require('./src/redis');

// initialize express.js session w/ Redis datastore
app.use(session({
  store: new RedisStore({
    client: redisClient,
  }), // use Redis datastore
  resave: false, // don't save session if unmodified
  saveUninitialized: false, // don't create session until something stored
  secret: 'lord of the rings',
}));

// setup flash messaging
// app.use(flash.flash());
// app.use(flash.flashRead());

// set up body POST parameters
app.use(express.json());
app.use(express.urlencoded({
  extended: true,
}));

// load the template engine
app.set('view engine', 'twig');

// enable static file serving
app.use(express.static('public'));

// load route handlers
const homeRoutes = require('./src/routes/home');
const itemRoutes = require('./src/routes/item');

// register route handlers
app.get('/', homeRoutes.getIndex);
app.get('/item/add', itemRoutes.getAdd);
app.post('/item/add', itemRoutes.postAdd);
app.get('/item/:id', itemRoutes.getItem);
app.get('/item/:id/edit', itemRoutes.getItemEdit);
app.post('/item/:id/edit', itemRoutes.postItemEdit);

// start app
app.listen(config.get('server.port'), config.get('server.address'), () => {
  console.log(`Overseer is listening on port ${config.get('server.port')}.`);
});