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

const templates = {
  contact: fs.readFileSync("./views/contact.html", "utf-8"),
  help:    fs.readFileSync("./views/help.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")
};

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: swig.compile(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, [req.url.split[0], req.url.split[0], req.url.split[0]]);

  const data = {
    id: '',
    username: '',
    item: '',
    src: '',
    dest: '',
    mime: '',
    size: '',
    userchannel: '',
    usernetwork: '',
    thumb: null,
    thumbnail: null,
    next: null,
    prev: null
  };

  if(query[0][0]) {
    const e = query[0][0];
    switch(e.mime) {
      case "image/png":
      case "image/jpeg":
      case "image/gif":
        data.item = "image";
      break;
      case "video/webm":
      case "video/mp4":
      case "video/quicktime":
        data.item = "video";
      break;
      case "audio/mpeg":
      case "audio/ogg":
      case "audio/flac":
      case "audio/x-flac":
        data.item = "audio";
      break;
    }
    data.id = e.id;
    data.username = e.username;
    data.srcurl = e.src;
    data.src = url.parse(e.src).hostname;
    data.thumb = `${cfg.websrv.paths.thumbnails}/${e.id}.png`;
    data.dest = `${cfg.websrv.paths.images}/${e.dest}`;
    data.mime = e.mime;
    data.size = e.size;//lib.formatSize(e.size);
    data.userchannel = e.userchannel;
    data.usernetwork = e.usernetwork;
    data.timestamp = new Date(e.stamp * 1000).toISOString();
    if(query[1].length)
      data.next = query[1][0].id;
    if(query[2].length)
      data.prev = query[2][0].id;
  }
  res.reply({
    body: swig.compile(templates.item)(data)
  });
});

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

router.get("/random", async (req, res) => {
  res
    .writeHead(301, {
      "Cache-Control": "no-cache, public",
      "Location": "/" + (await sql.query("select id from items order by rand() limit 1"))[0].id
    })
    .end();
});