import router from "../router.mjs";
import cfg from "../../../config.json";
import url from "url";
import fs from "fs";
import { queries } from "./inc/index.mjs";
import sql from "../sql.mjs";
import lib from "../lib.mjs";
import tpl from "../tpl.mjs";

tpl.readdir("views");

router.get(/\/(p\/\d+)?$/, async (req, res) => {
  try {
    const total = (await sql.query("select count(*) as total from items"))[0].total;
    const limit = 299;
    const pages = +Math.ceil(total / limit);
    const page = Math.min(pages, +req.url.split[1] || 1);
    const offset = (page - 1) * limit;

    const query = await sql.query("select id, mime from items order by id desc limit ?, ?", [ offset, limit ]);

    let cheat = [];
    for(let i = Math.max(1, page - 3); i <= Math.min(page + 3, pages); i++)
      cheat.push(i);

    query.forEach(e => {
      if(!fs.existsSync(`public/t/${e.id}.png`))
        fs.copyFileSync("public/s/img/broken.png", `public/t/${e.id}.png`);
    });

    const data = {
      items: query,
      pagination: {
        end: pages,
        prev: (page > 1) ? page - 1 : null,
        next: (page < pages) ? page + 1 : null,
        page: page,
        cheat: cheat,
        link: "/p/"
      },
      last: query[query.length - 1].id
    };

    res.reply({ body: tpl.render("views/index", data) });
  } catch(err) {
    res.reply({ body: "error :(" });
  }
});

router.get(/^\/([0-9]+)$/, async (req, res) => {
  const query = (await sql.query(queries.item, Array(3).fill(req.url.split[0])))?.shift();
  const qmax = (await sql.query("select id from items order by id desc limit 1"))[0].id;
  
  if(!query?.id)
    return res.redirect("/404");
  
  let cheat = [];
  for(let i = Math.min(query.id + 3, qmax); i >= Math.max(1, query.id - 3); i--)
    cheat.push(i);
  
  const data = {
    user: {
      name: query.username,
      channel: query.userchannel,
      network: query.usernetwork
    },
    item: {
      id: query.id,
      src: {
        long: query.src,
        short: url.parse(query.src).hostname,
      },
      thumbnail: `${cfg.websrv.paths.thumbnails}/${query.id}.png`,
      dest: `${cfg.websrv.paths.images}/${query.dest}`,
      mime: query.mime,
      size: lib.formatSize(query.size),
      timestamp: new Date(query.stamp * 1000).toISOString()
    },
    next: query.next ? query.next : null,
    prev: query.prev ? query.prev : null,
    title: `${query.id} - f0ck.me`,
    pagination: {
      end: 1,
      prev: query.id + 1,
      next: Math.max(query.id - 1, 1),
      page: query.id,
      cheat: cheat,
      link: "/"
    }
  };
  res.reply({ body: tpl.render("views/item", data) });
});

router.get(/^\/(contact|help|about)$/, (req, res) => {
  res.reply({ body: tpl.render(`views/${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)
});