var express = require('express');
var path = require("path");
var fs = require("fs");
var app = express();

app.set('view engine', 'ejs');
app.use("/a", express.static(path.join(__dirname, 'assets')));
app.use("/assets", express.static(path.join(__dirname, 'assets', "Files")));
var templateIndex = (x, y) => ({"type": "page","pageName": x,"pageData": y,"allPages": pages});
var templateErrPage = (sc) => ({"tags": ["Meta",sc],"location": "system/" + sc});
var templateTag = (x, y) => ({"shortname": x,"color": y});
var pages;
var getPages = () => {
  var __pg = JSON.parse(fs.readFileSync(path.join(__dirname, "views", "pages.json"), 'utf8'));
  __pg.tags["Meta"] = templateTag("//","#808080");
  __pg.tags["404"] = templateTag("404","#008000");
  __pg.tags["500"] = templateTag("500","#FF0080");
  __pg.documentationData.fullName = __pg.documentationData.name.join(" ");
  pages = __pg;
}
setInterval(getPages, 10000);
getPages();

var getPage = (page) => {
  if (!(pages.pages[page] || pages.redirects[page])) return {
    type: "invaildrequest"
  };
  if (pages.redirects[page]) return {
    type: "redirect",
    page: pages.redirects[page]
  };
  return templateIndex(page, pages.pages[page]);
}

app.get('/', (_,r) => r.redirect("/page/Welcome"));
app.get('/page', (_,r) => r.redirect("/page/Welcome"));

app.get('/page/:page', function(req, res, next) {
  var page = getPage(req.params.page);
  switch (page.type) {
    case "invaildrequest":
      next();
      break;
    case "redirect":
      res.redirect(page.page);
      break;
    case "page":
      res.render('index', page, (err, html) => {
        if (err) res.status(500).render('index', templateIndex("500_Internal_Server_Error", templateErrPage("500")));
        else res.send(html);
      });
  }
});

app.use((_,r) => r.status(404).render('index', templateIndex("404_Not_Found", templateErrPage("404"))));
app.listen(80);