let fetch = require("node-fetch");
let cheerio = require("cheerio");
let express = require("express");
const path = require("path");
const bodyParser = require("body-parser");
const MarketAlert = require("./MarketAlert");
const sequelize = require("./db.js");

const app = express();
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
const port = process.env.PORT || 5000;

app.get("/api/:url", async (req, res) => {
  let url =
    "https://www.olx.ba/pretraga?" +
    req.params.url +
    "&sort_order=desc&sort_po=datum";
  let appts = [];
  response = await fetch(url);
  const body = await response.text();

  const $ = cheerio.load(body);

  $("#rezultatipretrage")
    .find(".listitem")
    .each(async (index, elem) => {
      if (index == 0) {
        lastItemDate = $(elem)
          .find(".cijena > .datum > div")
          .first()
          .attr("data-cijelidatum");
      }
      const id = $(elem)
        .find("a")
        .first()
        .attr("href");
      const cijena = $(elem)
        .find(".cijena > .datum > span")
        .first()
        .text();
      const image = $(elem)
        .find("a > .slika > img")
        .first()
        .attr("src");
      appts.push({ url: id, price: cijena, image });
    });
  const [dan, mjesec, godina] = lastItemDate
    .split(". u ")[0]
    .split(".")
    .map(el => Number(el));
  const [sati, minute] = lastItemDate
    .split(". u ")[1]
    .split(":")
    .map(el => Number(el));
  last_date = String(new Date(godina, mjesec, dan, sati, minute));
  res.json({
    last_date,
    items: appts
  });
});

app.post("/api/marketalerts", function(req, res) {
  const { email, last_date, olx_url } = req.body;

  sequelize.sync().then(() =>
    MarketAlert.create({
      olx_url,
      last_date,
      email
    })
  );
  res.json({ message: "Market Alert Created!" });
});

app.listen(port, () => console.log(`Example app listening on port ${port}!`));