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

tpl.readdir("views");

router.get(/^\/(audio\/?|image\/?|video\/?)?(p\/\d+)?$/, async (req, res) => {
  try {
    let mime = false;
    let q = false;
    if(['audio', 'image', 'video'].includes(req.url.split[0])) {
      mime = req.url.split[0];
      q = " where " + (mimes[mime] ? mimes[mime].map(_mime => `mime = "${_mime}"`).join(" or ") : null);
    }

    const total = (await sql.query("select count(*) as total from items" + (mime ? q : "")))[0].total;
    const pages = +Math.ceil(total / cfg.websrv.eps);
    const page = Math.min(pages, +req.url.split[mime ? 2 : 1] || 1);
    const offset = (page - 1) * cfg.websrv.eps;

    const query = await sql.query(`select id, mime from items ${mime ? q : ""} order by id desc limit ?, ?`, [ offset, cfg.websrv.eps ]);

    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: {
        start: 1,
        end: pages,
        prev: (page > 1) ? page - 1 : null,
        next: (page < pages) ? page + 1 : null,
        page: page,
        cheat: cheat,
        link: `/${mime ? mime + "/" : ""}p/`
      },
      last: query[query.length - 1].id,
      filter: mime ? mime : undefined
    };

    res.reply({ body: tpl.render("views/index", data) });
  } catch(err) {
    console.log(err);
    res.reply({ body: "sorry bald wieder da lol :(" });
  }
});

router.get(/^\/((audio\/|video\/|image\/)?[0-9]+)$/, async (req, res) => {
  let id = false;
  let mime = false;
  let q = false;

  if(['audio', 'video', 'image'].includes(req.url.split[0])) {
    mime = req.url.split[0];
    id = +req.url.split[1];
    q = mimes[mime] ? mimes[mime].map(_mime => `mime = "${_mime}"`).join(" or ") : null;
  }
  else
    id = +req.url.split[0];

  const query = (await sql.query(`select items.* from items where items.id = ? ${mime ? "and ("+q+")" : ""} limit 1`, [ id ]))?.shift();

  if(!query?.id)
    return res.redirect("/404");
  
  const tags = (await sql.query(`select tags.tag from tags_assign left join tags on tags.id = tags_assign.tag_id where tags_assign.item_id = ?`, [ id ]));

  const qmin = (await sql.query(`select id from items ${mime ? "where "+q : ""} order by id asc limit 1`))[0].id;
  const qmax = (await sql.query(`select id from items ${mime ? "where "+q : ""} order by id desc limit 1`))[0].id;

  const qnext = (await sql.query(`select id from items where id > ? ${mime ? "and ("+q+")" : ""} order by id asc limit 3`, [ id ])).reverse();
  const qprev = (await sql.query(`select id from items where id < ? ${mime ? "and ("+q+")" : ""} order by id desc limit 3`, [ id ]));

  const cheat = qnext.concat([{ id: id }].concat(qprev)).map(e => +e.id);

  const next = qnext[qnext.length - 1] ? qnext[qnext.length - 1].id : false;
  const prev = qprev[0] ? qprev[0].id : false;

  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`,
      coverart: `${cfg.websrv.paths.coverarts}/${query.id}.png`,
      dest: `${cfg.websrv.paths.images}/${query.dest}`,
      mime: query.mime,
      size: lib.formatSize(query.size),
      timestamp: lib.timeAgo(new Date(query.stamp * 1000).toISOString()),
      tags: tags
    },
    title: `${query.id} - f0ck.me`,
    pagination: {
      start: qmax,
      end: qmin,
      prev: next,
      next: prev,
      page: query.id,
      cheat: cheat,
      link: `/${mime ? mime + "/" : ""}`
    },
    filter: mime ? mime : undefined
  };
  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]}`) });
});