import router from "../router.mjs";
import cfg from "../../../config.json";
import fs from "fs";
import url from "url";
import sql from "../sql.mjs";
import lib from "../lib.mjs";
import tpl from "../tpl.mjs";

const templates = {
  contact:  fs.readFileSync("./views/contact.html",         "utf-8"),
  how:      fs.readFileSync("./views/how.html",             "utf-8"),
  index:    fs.readFileSync("./views/index.html",           "utf-8"),
  item:     fs.readFileSync("./views/item.html",            "utf-8"),
  snippets: {
    navbar: fs.readFileSync("./views/snippets/navbar.html", "utf-8")
  }
};

tpl.snippets = templates.snippets;

router.get("/", async (req, res) => {
  const query = await sql.query("select id, mime from items order by id desc limit 300");
  const data = {
    items: query,
    last: query[query.length - 1].id
  };

  res.reply({ body: tpl.render(templates.index, data) });
});

router.get(/^\/([0-9]+)$/, async (req, res) => {
  const q = "select * from items where id = ? limit 1; " // get item
          + "select id from items where id = (select min(id) from items where id > ?); " // get previous item
          + "select id from items where id = (select max(id) from items where id < ?)"; // get next item
  const query = await sql.query(q, Array(3).fill(req.url.split[0]));
  if(!query[0][0])
    return res.redirect("/404");
  
  const e = query[0][0];
  const data = {
    user: {
      name: e.username,
      channel: e.userchannel,
      network: e.usernetwork
    },
    item: {
      id: e.id,
      src: {
        long: e.src,
        short: url.parse(e.src).hostname,
      },
      thumbnail: `${cfg.websrv.paths.thumbnails}/${e.id}.png`,
      dest: `${cfg.websrv.paths.images}/${e.dest}`,
      mime: e.mime,
      size: lib.formatSize(e.size),
      timestamp: new Date(e.stamp * 1000).toISOString()
    },
    next: query[1].length ? query[1][0].id : null,
    prev: query[2].length ? query[2][0].id : null
  };
  res.reply({ body: tpl.render(templates.item, data) });
});

router.get(/^\/(contact|help|how)$/, (req, res) => {
  res.reply({ body: tpl.render(templates[req.url.split[0]]) });
});

router.get("/random", async (req, res) => {
  res.redirect("/" + (await sql.query("select id from items order by rand() limit 1"))[0].id)
});