app.js

const createError = require("http-errors");
const express = require("express");
const path = require("path");
const i18n = require("i18n");
const hbs = require("express-hbs");
const cookieParser = require("cookie-parser");
const logger = require("morgan");
const indexRouter = require("./routes/index");
const langRouter = require("./routes/lang");
const { directory, locales, metaData } = require("./locales");
const packageJson = require("./package.json");

const app = express();

i18n.configure({
  locales,
  objectNotation: true,
  defaultLocale: "en_us",
  directory,
});

hbs.registerHelper("log", function (something) {
  console.log(something);
  return "" + something;
});
hbs.registerHelper("splitFirst", function (title) {
  var t = title.split("_");
  return t[0];
});

app.set("packageVersion", packageJson.version);
app.set("languagesMetaData", metaData);

app.engine(
  "hbs",
  hbs.express4({
    layoutsDir: __dirname + "/views/layouts",
    defaultLayout: "views/layouts/default",
    partialsDir: __dirname + "/views/partials",
    i18n,
  })
);
app.set("views", path.join(__dirname, "views"));
app.set("view engine", "hbs");
app.use(i18n.init);
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("/", indexRouter);
app.use("/lang", langRouter);
app.use(function (req, res, next) {
  next(createError(404));
});
app.use(function (err, req, res, next) {
  res.locals.message = err.message;
  res.locals.error = req.app.get("env") === "development" ? err : {};
  res.status(err.status || 500);
  res.render("error");
});

module.exports = app;